WO2025218019A1 - Camera module and electronic device - Google Patents

Abstract

Provided in the present application are a camera module and an electronic device. The camera module comprises a motor, a first lens, a second lens, a prism assembly and an image sensor assembly, wherein the first lens and the second lens are mounted to the motor; light enters the camera module, then sequentially passes through the second lens, the first lens and an incident surface of the prism assembly and then enters the prism assembly, and the light is reflected multiple times inside the prism assembly and is then emitted from an emergent surface of the prism assembly, and is imaged on the image sensor assembly; and the first lens is fixed to a stabilizing mount, the second lens is fixed to a focusing mount, a stabilizing driving mechanism is configured to drive the stabilizing mount to cause the first lens, the focusing mount and the second lens to move in a first direction and/or a second direction relative to a base, and the focusing driving mechanism is configured to drive the focusing mount to cause the second lens to move in a third direction relative to the stabilizing mount, such that the second lens moves close to or away from the first lens. The camera module has a small focusing stroke in a long-focus or micro-distance state.

Description

Camera modules and electronic equipment

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on April 15, 2024, with application number 202410453570.X, and priority to the Chinese patent application with the invention name “Camera module and electronic equipment”, all contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the technical field of photographing equipment, and in particular to a camera module and electronic equipment.

Background Art

With the continuous development of portable electronic devices such as mobile phones, users are demanding increasingly higher performance in telephoto and macro photography. To meet these demands, telephoto and macro camera modules have become an essential component of electronic devices. However, the structural design of existing telephoto and macro camera modules is irrational, resulting in a large range of movement when the motor drives the lens to focus.

Summary of the Invention

The present application provides a camera module and electronic equipment with a smaller movement range during focusing.

In the first aspect, the present application provides a camera module. The camera module includes a motor, a first lens, a second lens, a prism assembly and an image sensor assembly. The first lens and the second lens are mounted on the motor; the prism assembly includes an incident surface and an exit surface. The incident surface of the prism assembly is arranged facing the first lens, and the exit surface of the prism is arranged facing the image sensor assembly; after the light enters the camera module, it passes through the second lens, the first lens and the incident surface of the prism assembly in sequence and then enters the prism assembly. After the light is reflected multiple times inside the prism assembly, it is emitted from the exit surface of the prism assembly and is imaged on the image sensor assembly; the motor includes a base, an anti-shake drive mechanism, and a plurality of lens elements. The invention relates to a lens assembly comprising a structure, an anti-shake bracket, a focus bracket and a focus driving mechanism, the anti-shake bracket is movably connected to the base, and the focus bracket is movably connected to the anti-shake bracket; the first lens is fixed to the anti-shake bracket, and the second lens is fixed to the focus bracket. The anti-shake driving mechanism is used to drive the anti-shake bracket to drive the first lens, the focus bracket and the second lens to move relative to the base along the first direction and/or the second direction, and the focus driving mechanism is used to drive the focus bracket to drive the second lens to move relative to the anti-shake bracket along the third direction, so that the second lens is close to or away from the first lens, wherein the first direction, the second direction and the third direction are different from each other.

It is understandable that the motor can achieve optical image stabilization by controlling the movement of the first lens and the second lens in the first direction and/or the second direction. In this way, when the camera module collects ambient light, if the camera module shakes in the first direction and/or the second direction due to external force, the movement of the first lens and the second lens in the first direction and/or the second direction can be controlled by the motor to offset the shaking stroke of the first lens and the second lens in the first direction and/or the second direction, so as to avoid or reduce the position offset of the first lens and the second lens caused by the shaking. In other words, the camera module of the present application can achieve optical image stabilization of the camera module by controlling the movement of the first lens and the second lens in the first direction and/or the second direction by the motor, thereby improving the imaging quality of the camera module.

It is understandable that when the camera module is operating, the first lens remains stationary in the third direction, while the second lens moves along the third direction to achieve autofocus. The camera module's structural configuration is relatively reasonable, so the movement distance of the second lens along the third direction is the camera module's focus stroke. Because the second lens's movement distance is relatively short, the camera module's focus stroke is also relatively short, and the camera module's space requirement in the third direction is also relatively small, enabling a compact camera module.

It is understandable that grouping the first lens and the second lens of the camera module can avoid the anti-shake and image rotation problems of the camera module, and the user's focusing experience is better.

In one possible implementation, during the focusing process of the camera module from a distant view to a close view, the first lens remains stationary in the third direction, the second lens moves away from the first lens along the third direction, and the distance between the first lens and the second lens increases; during the focusing process of the camera module from a close view to a distant view, the first lens remains stationary in the third direction, the second lens moves closer to the first lens along the third direction, and the distance between the first lens and the second lens decreases.

It can be understood that when the camera module switches to shooting in the telephoto state, the second lens moves toward the image side of the camera module in the third direction, changing the focal length of the camera module, thereby enabling the camera module to focus and shoot in the telephoto state.

It can be understood that when the camera module switches to shooting in macro state, the second lens moves toward the object side of the camera module in the third direction, changing the focal length of the camera module, thereby enabling the camera module to focus and shoot in macro state.

In one possible implementation, the anti-shake bracket includes a mounting hole, the focus bracket includes a mounting space, and the mounting hole and the mounting space are arranged relative to each other; the first lens is fixed in the mounting hole of the anti-shake bracket, and the second lens is fixed in the mounting space of the focus bracket.

It is understandable that by setting the mounting hole and the mounting space relative to each other, it is helpful to achieve that the optical axis of the first lens is roughly parallel to the optical axis of the second lens. For example, the optical axis directions of the first lens and the second lens can be roughly parallel to the third direction, that is, the optical axis directions of the first lens and the second lens can be roughly parallel to the thickness direction of the electronic device. The diameters of the first lens and the second lens are not limited by the thickness of the electronic device, and there is no need to cut the lens into a specific diameter range in the thickness direction of the electronic device. The first lens and the second lens are roughly parallel to the third direction and the thickness direction of the electronic device. The camera module is symmetrical in the third direction and has no problems of imaging ST separation and poor resolution.

In a possible implementation, a fixing block is protruded from a wall of the mounting hole of the anti-shake bracket; the first lens is fixed to the fixing block and is at least partially located on a side of the fixing block facing the base.

It can be understood that the first lens is fixedly connected to the fixing block to achieve a fixed connection with the anti-shake bracket, and the connection with the anti-shake bracket is more reliable.

In a possible implementation, the mounting hole forms a first opening on the anti-shake bracket, and the first lens does not extend out of the first opening.

It is understandable that during the focusing process of the second lens, since the first lens does not extend out of the first opening, no collision occurs between the first lens and the second lens, thereby avoiding damage to the first lens or the second lens.

In a possible implementation, the first lens has negative optical power, and the second lens has positive optical power.

It can be understood that by reasonably configuring the optical focal length of the first lens and the second lens and setting the first lens and the second lens to have opposite optical focal lengths, it is beneficial to achieve focusing and macro focusing, reduce the focusing stroke, improve the focusing ability, and help improve the overall image quality of the camera module when imaging in close-up, increase the amount of light entering the system, promote macro imaging, and balance the difference in imaging quality between long-range shooting and close-up shooting. When shooting objects at different distances, the image quality is good and the imaging clarity is high.

It can be understood that when the first lens has negative optical power and the second lens has positive optical power, the second lens can be used for light beam convergence, so that the diameter of the light beam entering the first lens is smaller, and the aperture of the first lens is no longer the maximum limitation of the light aperture, which is conducive to the miniaturization and large aperture design of the camera module, effectively increasing the light aperture, achieving a smaller aperture number, and enhancing the focusing ability, which is conducive to macro shooting.

In one possible implementation, the second lens includes a first lens and a second lens, the first lens includes a third lens, the first lens, the second lens and the third lens are arranged in sequence, the first lens has positive optical power, the second lens has negative optical power, and the third lens has negative optical power.

It can be understood that a reasonable configuration of the optical focal length of the first lens, the second lens and the third lens is conducive to achieving the miniaturization, large aperture and telephoto features of the camera module, and is conducive to the realization of the focusing process of the camera module from long sight to close sight and improving the imaging quality of the camera module.

In a possible implementation, the focal length f1 of the first lens of the camera module and the effective focal length EFL of the camera module satisfy: f1/EFL＞-1.

It is understandable that by reasonably limiting the range of f1/EFL, it is helpful to reduce the aperture number, realize the design of large aperture, increase the light transmission diameter of the camera module, and ensure the good imaging quality of the camera module.

In one possible implementation, the focal length f2 of the second lens of the camera module and the effective focal length EFL of the camera module satisfy: f2/EFL≤0.9.

It can be understood that by limiting the range of f2/EFL, the camera module can balance the image quality differences between the long-range and close-range shooting of the camera module at a smaller assembly sensitivity, thereby obtaining more uniform image quality.

It can be understood that by reasonably limiting the range of f1/EFL and f2/EFL, the optical focal length of the first lens and the second lens can be reasonably configured, which is conducive to shortening the focusing stroke of the camera module, improving the focusing ability of the camera module, and realizing the shooting of the camera module in a macro state, so as to have good image quality and high imaging clarity when shooting objects at different distances.

In a possible implementation, the second lens includes at least one lens with an Abbe number less than 40.

It can be understood that the second lens can include at least one lens with high dispersion. By limiting the Abbe number of at least one lens in the second lens to be less than, it is beneficial to reduce the chromatic aberration in the camera module, so that the camera module has good imaging quality.

In a possible implementation, the camera module satisfies: FOV＜50°, where FOV is the field of view angle of the camera module when the object distance is infinite.

It can be understood that by setting the field of view angle of the camera module, the camera module has a telephoto characteristic.

In a possible implementation, the camera module satisfies: Fno＜3.6, where Fno is the aperture number of the camera module.

It is understandable that the smaller the value of the camera module's Fno, the larger the aperture of the camera module; the larger the value of the camera module's Fno, the smaller the aperture of the camera module. By limiting the value of the camera module's Fno, the camera module has the characteristic of a large aperture.

In one possible implementation, the motor also includes a guide bracket, multiple first connecting members, and multiple second connecting members. The guide bracket is located between the anti-shake bracket and the base. The guide bracket is connected to the base through multiple first connecting members, and is connected to the anti-shake bracket through multiple second connecting members, so that the relative movement direction between the anti-shake bracket and the guide bracket is different from the relative movement direction between the guide bracket and the base.

It can be understood that the guide bracket can ensure the connection reliability of the anti-shake bracket and the base, can achieve the functions of stable support and accurate guidance, and ensure the stability of the relative position of the first anti-shake coil and the first anti-shake magnetic part and the relative position of the second anti-shake coil and the second anti-shake magnetic part. The motor can achieve precise guidance during the optical image stabilization process through the matching structure of the base, the first connecting part, the guide bracket, the second connecting part and the anti-shake bracket, thereby solving the problem of excessive lens tilt when the traditional motor performs optical image stabilization, and making the optical image stabilization movement of the camera module smooth and reliable.

In one possible implementation, the base includes multiple first grooves, the guide bracket includes multiple second grooves and multiple third grooves, and the anti-shake bracket includes multiple fourth grooves; multiple first connecting members are arranged in a one-to-one correspondence with the multiple first grooves and the multiple second grooves, and at least part of the first connecting members is located in the first groove of the base, and at least part of it is located in the second groove of the guide bracket; multiple second connecting members are arranged in a one-to-one correspondence with the multiple third grooves and the multiple fourth grooves, and at least part of the second connecting members is located in the third groove of the guide bracket, and at least part of it is located in the fourth groove of the anti-shake bracket.

It is understood that the first groove can limit and guide the first connecting member, allowing the first connecting member to move in the second direction within the second groove. Therefore, the guide bracket can also slide relative to the base in a direction parallel to the second direction. The third groove can limit and guide the second connecting member, allowing the second connecting member to move in the first direction within the fourth groove. Therefore, the anti-shake bracket can slide relative to the base in a direction parallel to the first direction.

In a possible implementation, the anti-shake bracket is movably connected to the base via a rolling member.

It can be understood that compared with the solution in which the anti-shake bracket is movably connected to the base through the second connecting member, the guide bracket and the first connecting member, the solution in which the anti-shake bracket is movably connected to the base through a rolling member has a simpler structure, thereby realizing the miniaturization of the motor and the camera module.

In a possible implementation, the base includes a first rolling groove, and the anti-shake bracket includes a second rolling groove; at least part of the rolling element is located in the first rolling groove of the base, and at least part of the rolling element is located in the second rolling groove of the anti-shake bracket.

It is understood that the rolling element can roll in the first and/or second directions within the first rolling groove, and the second rolling groove of the anti-shake bracket can limit the rolling element. It is also understood that the anti-shake bracket and the rolling element can move together in any direction relative to the base on a single plane, making the relative movement between the anti-shake bracket and the base more controllable.

In one possible implementation, the anti-shake drive mechanism includes a first anti-shake coil, a first anti-shake magnetic component, a second anti-shake coil and a second anti-shake magnetic component. The first anti-shake coil and the second anti-shake coil are fixed to the base, and the first anti-shake magnetic component and the second anti-shake magnetic component are fixed to the anti-shake bracket; the first anti-shake coil is arranged facing the first anti-shake magnetic component to drive the anti-shake bracket to move in a first direction relative to the base, and the second anti-shake coil is arranged facing the second anti-shake magnetic component to drive the anti-shake bracket to move in a second direction relative to the base.

It can be understood that, driven by the first anti-shake coil, the first anti-shake magnetic component, the second anti-shake coil and the second anti-shake magnetic component, the anti-shake bracket can drive the first lens to move relative to the base in the first direction and/or the second direction, thereby realizing the movement of the first lens in the -plane.

In one possible implementation, the anti-shake drive mechanism includes a first anti-shake sensor, which is fixed to the base and located on the inner side of the first anti-shake coil, and is used to detect the position change of the anti-shake bracket in the first direction; the anti-shake drive mechanism includes a second anti-shake sensor, which is fixed to the base and located on the inner side of the second anti-shake coil, and is used to detect the position change of the anti-shake bracket in the second direction.

It can be understood that the first anti-shake sensor and the second anti-shake sensor can detect the position change of the anti-shake bracket, and the camera module can adjust the position of the anti-shake bracket according to the detection results, so as to achieve a better optical anti-shake effect.

In one possible implementation, the motor also includes a focusing circuit board, which is fixed to the anti-shake bracket; the focusing drive mechanism includes a focusing coil and a focusing magnetic part, the focusing coil is fixed to the focusing circuit board, and the focusing magnetic part is fixed to the focusing bracket, and the focusing coil is arranged facing the focusing magnetic part to drive the focusing bracket to move along a third direction relative to the anti-shake bracket.

It is understandable that the focusing coil and the focusing magnetic part drive the focusing bracket to move along the third direction, thereby driving the second lens to move along the third direction, thereby realizing the automatic focus of the camera module. Among them, when the second lens is automatically focusing, the relative distance between the first lens and the second lens in the third direction will change, and a smaller distance change can achieve a larger focal length change, which is beneficial to improving the focusing ability of the camera module. It is understandable that the second lens with a shorter focusing stroke can realize the automatic focus of the motor in the macro state, thereby improving the imaging quality of the camera module in the macro state.

In a possible implementation, the incident surface and the exit surface are located on the same side of the prism assembly.

It can be understood that the light can be reflected at least three times in the prism assembly, and the camera module has a longer optical path, which is conducive to shooting in the telephoto state of the camera module.

In a possible implementation, the incident surface and the exit surface are located on different sides of the prism assembly.

It can be understood that the light can be reflected at least twice in the prism assembly, and the camera module has a longer optical path, which is more conducive to shooting in the telephoto state of the camera module.

In one possible implementation, the prism assembly includes a prism and a prism bracket, and the prism is mounted on the prism bracket; the prism includes a first surface, a second surface, a first side surface and a second side surface, the first side surface and the second side surface are connected to the first surface and the second surface, and the first surface and the second surface are arranged back to back; the prism assembly also includes a light-shielding plate, which is fixed to the first surface of the prism, and the light-shielding plate separates the first surface to form an incident surface and an exit surface.

It is understood that after entering the prism, the light can be refracted at least three times inside the prism. In this way, the optical path of the camera module is larger, which can achieve shooting in the telephoto state, thereby improving the imaging quality of the camera module in the telephoto state.

In a possible implementation, the image sensor assembly includes an image sensor and a circuit board, wherein the circuit board includes a first board portion, a second board portion, and a The first and third board portions are connected to each other, and the first and third board portions are arranged opposite to each other and spaced apart. The image sensor is fixed to the side of the first board portion of the circuit board facing the third board portion and is electrically connected to the circuit board. The prism assembly is fixed to the third board portion of the circuit board and is at least partially located between the first and third board portions.

It can be understood that by setting the image sensor assembly and the prism assembly to be fixedly connected and the output surface of the prism assembly facing the image sensor, the reflected light path inside the prism assembly is longer, which meets the telephoto characteristics of the camera module and improves the telephoto shooting performance of the camera module.

In one possible implementation, the prism assembly includes a prism and a prism holder, and the prism is mounted on the prism holder; the prism includes a first surface, a second surface, a first side surface and a second side surface, the first side surface and the second side surface are connected to the first surface and the second surface, the first surface and the second surface are arranged back to back, and the first side surface and the second side surface are arranged back to back; a portion of the first surface forms an incident surface, and a portion of the second surface forms an exit surface.

It is understood that after entering the prism, the light can be refracted at least four times inside the prism. In this way, the optical path of the camera module is larger, which can achieve shooting in the telephoto state, thereby improving the imaging quality of the camera module in the telephoto state.

It can be understood that compared with the solution in which the incident surface and the exit surface of the prism are located on the same surface, the solution in which the incident surface and the exit surface of the prism are located on different surfaces can enable the light to be refracted at least four times within the prism, can have a longer total optical path length, and have higher imaging quality in the telephoto state.

In a second aspect, the present application provides an electronic device, which includes a housing and the aforementioned camera module, wherein the camera module is disposed in the housing.

It is understandable that the electronic device has a more reasonable structural configuration, and when shooting, the electronic device has better optical image stabilization and autofocus performance, providing a better user experience. In addition, the camera module has a shorter focus stroke, and the camera module has a smaller size requirement in the thickness direction of the electronic device, which is conducive to the thinning of the electronic device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

FIG2 is a partial cross-sectional schematic diagram of an embodiment of the electronic device shown in FIG1 taken along line A-A;

FIG3 is a schematic structural diagram of the camera module shown in FIG1 in one embodiment;

FIG4 is a schematic diagram of a partial structural decomposition of the camera module shown in FIG3 in one embodiment;

FIG5 is a schematic diagram of a partial structural decomposition of the motor shown in FIG4 in one embodiment;

FIG6 is an enlarged schematic diagram of the structure of the base shown in FIG5 in one embodiment;

FIG7 is a schematic structural diagram of the base shown in FIG6 at another angle;

FIG8 is a partial structural assembly diagram of the motor shown in FIG5 in one embodiment;

FIG9 is a second diagram of a partial structural assembly of the motor shown in FIG5 in one embodiment;

FIG10 is an enlarged structural schematic diagram of the guide bracket shown in FIG5 in one embodiment;

FIG11 is a schematic structural diagram of the guide bracket shown in FIG10 at another angle;

FIG12 is a third diagram of a partial structural assembly of the motor shown in FIG5 in one embodiment;

FIG13 is a partial cross-sectional schematic diagram of an embodiment of the motor shown in FIG12 taken along line B-B;

FIG14 is an enlarged schematic diagram of the structure of the anti-shake bracket shown in FIG5 in one embodiment;

FIG15 is a schematic structural diagram of the anti-shake bracket shown in FIG14 at another angle;

FIG16 is a fourth diagram of a partial structural assembly of the motor shown in FIG5 in one embodiment;

FIG17 is a fifth diagram of a partial structural assembly of the motor shown in FIG5 in one embodiment;

FIG18 is a partial structural assembly diagram 1 of the camera module shown in FIG4 in one embodiment;

FIG19 is a partial cross-sectional schematic diagram of an embodiment of the camera module shown in FIG18 taken along line C-C;

FIG20 is a partial cross-sectional view of an embodiment of the camera module shown in FIG18 taken along line D-D;

FIG21 is an enlarged schematic diagram of the structure of the focusing circuit board shown in FIG5 at another angle;

FIG22 is a sixth diagram of a partial structural assembly of the motor shown in FIG5 in one embodiment;

FIG23 is a seventh diagram of a partial structural assembly of the motor shown in FIG5 in one embodiment;

FIG24 is a second partial structural assembly diagram of the camera module shown in FIG4 in one embodiment;

FIG25 is a partial cross-sectional schematic diagram of an embodiment of the camera module shown in FIG24 taken along line E-E;

FIG26 is a partial cross-sectional view of an embodiment of the camera module shown in FIG24 taken along line F-F;

FIG27 is a third diagram of a partial structural assembly of the camera module shown in FIG4 in one embodiment;

FIG28 is an enlarged schematic diagram of the structure of the housing shown in FIG5 at another angle;

FIG29 is a partial cross-sectional schematic diagram of an embodiment of the camera module shown in FIG3 taken along line G-G;

FIG30 is a partially exploded schematic diagram of the prism assembly shown in FIG4 in one embodiment;

FIG31 is a partial structural assembly diagram of the prism assembly shown in FIG30 in one embodiment;

FIG32 is an enlarged schematic diagram of the structure of the prism bracket shown in FIG30 at another angle;

FIG33 is a partial cross-sectional schematic diagram of an embodiment of the camera module shown in FIG3 taken along line H-H;

FIG34 is an exploded schematic diagram of the image sensor assembly shown in FIG4 in one embodiment;

FIG35 is a partial cross-sectional view of an embodiment of the image sensor assembly shown in FIG4 taken along line I-I;

FIG36 is a second partial cross-sectional view of an embodiment of the camera module shown in FIG3 taken along line H-H;

FIG37 is a structural diagram of the camera module provided by the first embodiment of the present application in a long-range working state when the object distance is infinite;

FIG38 is a schematic structural diagram of the camera module shown in FIG37 in a close-up working state during macro shooting;

FIG39 is a structural diagram of a camera module provided by a second embodiment of the present application in a long-range working state when the object distance is infinite;

FIG40 is a schematic structural diagram of the camera module shown in FIG39 in a close-up working state during macro shooting;

FIG41 is a schematic structural diagram of the camera module shown in FIG3 in another embodiment;

FIG42 is an exploded view of a portion of the camera module shown in FIG41 in one embodiment;

FIG43 is an enlarged schematic diagram of the structure of the base shown in FIG42 in one embodiment;

FIG44 is a partial structural assembly diagram of the motor shown in FIG42 in one embodiment;

FIG45 is a schematic structural diagram of the anti-shake bracket shown in FIG42 in one embodiment;

FIG46 is a schematic structural diagram of the anti-shake bracket shown in FIG45 at another angle;

FIG47 is a partial structural assembly diagram of the camera module shown in FIG41 in one embodiment;

FIG48 is a partial cross-sectional view of an embodiment of the camera module shown in FIG47 taken along line J-J;

FIG49 is a partial cross-sectional view of an embodiment of the camera module shown in FIG47 taken along line K-K;

FIG50 is a partial cross-sectional view of an embodiment of the camera module shown in FIG47 taken along line L-L;

FIG51 is a second diagram of a partial structural assembly of the motor shown in FIG42 in one embodiment;

FIG52 is a schematic structural diagram of the camera module shown in FIG3 in yet another embodiment;

FIG53 is a partially exploded schematic diagram of the camera module shown in FIG52 in one embodiment;

FIG54 is a partially exploded schematic diagram of the prism assembly shown in FIG53 in one embodiment;

FIG55 is an enlarged schematic diagram of the structure of the prism bracket shown in FIG54 at another angle;

FIG56 is a partial cross-sectional schematic diagram of an embodiment of the camera module shown in FIG52 taken along line M-M;

FIG57 is a partial cross-sectional schematic diagram of one embodiment of the image sensor assembly of FIG53 taken along line N-N;

Figure 58 is a second partial cross-sectional schematic diagram of an embodiment of the camera module shown in Figure 52 at the M-M line.

DETAILED DESCRIPTION

For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this application are explained and described below.

The object side, with the lens as the boundary, is the side where the scene to be imaged is located.

The image side is the side where the image of the scene to be imaged is located, with the lens as the boundary.

The object side, with the lens as the boundary, the side where the object is located is the object side, and the surface of the lens close to the object side is called the object side, also known as the object plane.

The image side, with the lens as the boundary, the side where the image of the object is located is called the image side, and the surface of the lens close to the image side is called the image side, also known as the image plane.

The optical axis is a ray of light that passes perpendicularly through the center of an ideal lens. When light rays parallel to the optical axis enter a convex lens, all rays converge at a single point behind the lens. This point is the focal point. As light rays propagate along the optical axis, their direction of travel remains unchanged.

Focal length, also known as focal length, is a measure of the convergence or divergence of light in an optical system. It is the vertical distance from the optical center of a lens or lens group to the focal plane, when a sharp image of an infinitely distant object is formed on the focal plane. For thin lenses, the focal length is the distance from the lens center to the image plane. For thick lenses or lens groups, the focal length is equal to the effective focal length, which is the distance from the rear principal plane of the lens or lens group to the image plane.

Effective focal length (EFL) is defined as the distance from the center of the camera module to the focal point.

Focal power, defined as the difference between the image-side beam convergence and the object-side beam convergence, is the reciprocal of the focal length of the lens. It characterizes the ability of an optical system to deflect light.

Positive optical power, also called positive refractive power, means that the lens has a positive focal length and can focus light.

Negative optical power, also known as negative refractive power, means that the lens has a negative focal length and can diverge light.

The aperture is a device used to control the amount of light that passes through the lens and enters the photosensitive surface inside the camera body. It is usually inside the lens.

Aperture number, also known as F number (Fno), is the relative value obtained by dividing the focal length of the lens by the diameter of the lens entrance pupil (the inverse of the relative aperture). The smaller the aperture, the more light enters in the same unit time. The larger the aperture value, the smaller the depth of field, and the background content in the photo will be blurred, similar to the effect of a telephoto lens.

In optical instruments, the field of view (FOV) is the angle between the two edges of the maximum range through which the image of the measured object can pass, with the lens as the vertex. The field of view determines the visual range of the optical instrument. A larger field of view means a wider field of view and a smaller optical magnification.

The image height (Imaging Height, IH) of the imaging surface represents half of the diagonal length of the effective pixel area on the photosensitive chip, which is also the radius of the imaging circle.

The Abbe number (Abbe), also known as the dispersion coefficient, is the difference ratio of the refractive index of an optical material at different wavelengths, representing the degree of dispersion of the material.

The refractive index (Nd) is defined as the absolute value of the ratio of the propagation speed of electromagnetic waves (including visible light) to the speed of light in a vacuum when propagating in a material. It is an indicator that describes the propagation speed and bending degree of light in a material.

The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application.

In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," "connected," and "connected" should be understood broadly. For example, "connected" can mean a removable or non-removable connection; a direct connection or an indirect connection through an intermediary; an electrical connection or a mechanical connection. A "fixed connection" refers to a connection in which the relative positional relationship remains unchanged after connection. A "movable connection" refers to a connection in which the connection enables relative movement. A "sliding connection" refers to a connection in which the connection enables relative sliding. Furthermore, two components forming an integrated structure through an integral molding process mean that, during the formation of one of the two components, the component is immediately connected to the other, without the need for further processing (such as bonding, welding, snap-fit connection, or screw connection) to connect the two components. Components A and B can be arranged relative to each other so that component A is projected along a target direction to form projection C, and component B is projected along the target direction to form projection D, and projections C and D can at least substantially overlap. In some embodiments, the substantial overlap can be any of the following: projection C is completely within projection D. Alternatively, projection D is completely within projection C. Alternatively, projection C and projection D intersect each other, and the intersection area of projection C and projection D accounts for a ratio of projection C or projection D that is greater than 50%.

The directional terms mentioned in the embodiments of this application, such as "top", "bottom", "inside", "outside", etc., are only used to refer to the directions in the drawings. Therefore, the directional terms used are for better and clearer description and understanding of the embodiments of this application, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the embodiments of this application. For those skilled in the art, the specific meanings of the above terms can be understood according to specific circumstances.

The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and/or" in the specification and claims represents at least one of the connected objects, and the character "/" generally indicates that the objects associated before and after are in an "or" relationship. "Multiple" means at least two.

In addition, in the embodiments of the present application, the limitations of the relative position relationship mentioned, such as parallel, perpendicular, aligned, etc., are all for the current state of the art, rather than absolutely strict limitations, and a small amount of deviation is allowed, and it is possible to be approximately parallel, approximately perpendicular, approximately aligned, etc. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 degrees and 100 degrees.

FIG1 is a schematic structural diagram of an electronic device 1000 provided in an embodiment of the present application.

As shown in FIG1 , electronic device 1000 may be a device with a camera module, such as a mobile phone, a tablet computer (personal computer), a laptop computer, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, an in-vehicle device, a wearable device, augmented reality (AR) glasses, an AR helmet, virtual reality (VR) glasses, or a VR helmet. The electronic device 1000 of the present embodiment is described using a mobile phone as an example.

FIG2 is a partial cross-sectional schematic diagram of an embodiment of the electronic device 1000 shown in FIG1 at line A-A.

As shown in Figures 1 and 2, in some embodiments, the electronic device 1000 may include a camera module 100, a housing 200, and a screen 300. The camera module 100 may be a rear camera module 100 or a front camera module 100. It will be understood that Figure 1 and the related figures below only schematically illustrate some components included in the electronic device 1000, and the actual shape, actual size, actual position, and actual structure of these components are not limited by Figure 1 and the figures below. In addition, when the electronic device 1000 is a device of some other form, the electronic device 1000 may also not include the screen 300.

It is understood that, for the sake of convenience in the following description, the camera module 100 is defined as having a first direction X, a second direction Y and a third direction The first direction X, the second direction Y, and the third direction Z are different from each other. For example, the first direction X may be the length direction of the camera module 100, the second direction Y may be the width direction of the camera module 100, and the second direction Y is perpendicular to the first direction X. The third direction Z may be the height direction of the camera module 100, and the third direction Z is perpendicular to the first direction X and the second direction Y. In other embodiments, the coordinate system of the camera module 100 can be flexibly set according to specific actual needs.

As shown in Figures 1 and 2, in some embodiments, screen 300 is mounted on housing 200 and, together with housing 200, encloses the interior of electronic device 1000. The interior of electronic device 1000 can be used to house components of electronic device 1000, such as a battery, receiver, or microphone. Screen 300 can be either flat or curved.

Exemplarily, the camera module 100 can be located inside the electronic device 1000. The housing 200 has a light-transmitting portion 201. The shape of the light-transmitting portion 201 is not limited to the circular shape shown in FIG1 , but can also be an elliptical or irregular shape. Light from outside the electronic device 1000 can enter the interior of the electronic device 1000 through the light-transmitting portion 201. The camera module 100 can collect light entering the interior of the electronic device 1000. The light-transmitting portion 201 can be a light-transmitting hole or a transparent portion in the housing 200. This application does not specifically limit the specific structure of the light-transmitting portion 201.

Fig. 3 is a schematic diagram of the structure of the camera module 100 shown in Fig. 1 in one embodiment. Fig. 4 is a schematic diagram of a partial structural decomposition of the camera module 100 shown in Fig. 3 in one embodiment.

As shown in Figures 3 and 4, the camera module 100 includes a motor 1, a first lens 2, a second lens 3, a prism assembly 4, and an image sensor assembly 5. It is understood that the camera module 100 may also include fewer or more structures. For example, the camera module 100 may also include a variable aperture (not shown in the figures).

In one embodiment, the first lens 2 and the second lens 3 may be mounted on the motor 1 .

Among them, the motor 1 can achieve optical image stabilization by controlling the first lens 2 and the second lens 3 to move along a plane perpendicular to the third direction Z (that is, the X-Y plane). In this way, when the camera module 100 collects ambient light, if the electronic device 1000 shakes in the X-Y plane due to external force, the movement of the first lens 2 and the second lens 3 on the X-Y plane can be controlled by the motor 1 to offset the shaking stroke of the first lens 2 and the second lens 3 on the X-Y plane, so as to avoid or reduce the position offset of the first lens 2 and the second lens 3 caused by shaking. In other words, the camera module 100 of the present application can control the movement of the first lens 2 and the second lens 3 on the X-Y plane by the motor 1 to achieve optical image stabilization (OIS) of the camera module 100 and improve the imaging quality of the camera module 100.

Furthermore, the motor 1 can also achieve auto focus (AF) by controlling the second lens 3 to move along the third direction Z. It is understood that, compared to the solution in which the motor 1 simultaneously controls the movement of the first lens 2 and the second lens 3 along the third direction Z, the motor 1 in this embodiment does not need to control the movement of the first lens 2 along the third direction Z. Thus, the focusing stroke of the camera module 100 is shortened.

As shown in Figures 2 and 4 , the motor 1 has an escape space 1a, which can connect the inside of the motor 1 to the outside of the motor 1.

As shown in FIG. 2 and FIG. 4 , illustratively, the prism assembly 4 includes a prism 41 and a prism bracket 42 , and the prism 41 can be fixedly connected to the prism bracket 42 .

Illustratively, the prism 41 has an incident surface S7 and an exit surface S11. The incident surface S7 and the exit surface S11 of the prism 41 may be located on the same side of the prism 41. In other embodiments, the incident surface S7 and the exit surface S11 of the prism 41 may also be located on different sides of the prism 41.

As shown in Figures 2 and 4, for example, at least a portion of the prism assembly 4 can be located in the avoidance space 1a of the motor 1. In this way, on the one hand, the prism assembly 4 can better utilize the avoidance space 1a of the motor 1, thereby improving the space utilization rate of the motor 1. On the other hand, the prism assembly 4 and the motor are arranged more compactly, which is conducive to the miniaturization of the camera module 100. In addition, at least a portion of the motor 1 is arranged relative to the incident surface S7 of the prism 41, so that light passing through the first lens 2 and the second lens 3 can enter the prism 41.

As shown in FIG. 2 to FIG. 4 , illustratively, the image sensor assembly 5 is disposed opposite to the exit surface S11 of the prism 41 , so that light passing through the prism 41 can enter the image sensor assembly 5 .

It is understood that, illustratively, light enters the camera module 100 from the light-transmitting portion 201 of the electronic device 1000, passes through the second lens 3, the first lens 2, and the incident surface S7 of the prism 41, and then enters the interior of the prism 41. After being reflected at least three times inside the prism 41, the light passes through the exit surface S11 of the prism 41 and reaches the image sensor assembly 5. The image sensor assembly 5 converts the image information carried by the light into an electrical signal.

FIG5 is a schematic diagram of a partial structural decomposition of the motor 1 shown in FIG4 in one embodiment.

As shown in Figure 5, motor 1 exemplarily includes an anti-shake module 1b and a focus module 1c. The anti-shake module 1b drives the first lens 2 and the second lens 3 for optical image stabilization, while the focus module 1c drives the second lens 3 for autofocus. The anti-shake module 1b and the focus module 1c can form an integrated structure.

For example, the anti-shake module 1b includes a base 11, a motor circuit board 12, a first connecting member 131, a second connecting member 132, a third connecting member 133, an anti-shake driving mechanism 14, a guide bracket 15, and an anti-shake bracket 16. The anti-shake driving mechanism 14 includes a first anti-shake coil 141, a first anti-shake magnetic member 142, a second anti-shake coil 143, and a second anti-shake magnetic member 144. The first anti-shake coil 141 and the first anti-shake The magnetic members 142 are arranged in a corresponding manner to form a drive mechanism, and the second anti-shake coil 143 and the second anti-shake magnetic member 144 are arranged in a corresponding manner to form another drive mechanism. The number of first connecting members 131 and second connecting members 132 can be multiple, for example, three are used in this embodiment. The number of third connecting members 133 can be multiple, for example, two are used in this embodiment.

Exemplarily, the focus module 1 c includes a focus bracket 21 , a focus drive mechanism 22 , and a focus circuit board 23 . The focus drive mechanism 22 includes a focus coil 221 and a focus magnetic member 222 .

Exemplarily, the motor 1 may further include a pressing piece 17 and a housing 18 .

Fig. 6 is an enlarged schematic diagram of the structure of the base 11 shown in Fig. 5 in one embodiment. Fig. 7 is a schematic diagram of the structure of the base 11 shown in Fig. 6 at another angle.

As shown in Figures 6 and 7, the base 11 exemplarily includes a bottom 111 and a side portion 112. The side portion 112 can be fixedly connected to the bottom 111 and is substantially perpendicular to the bottom 111.

Illustratively, the bottom 111 of the base 11 may include a first corner 1111, a second corner 1112, a third corner 1113, a first side 1114, and a second side 1115. Illustratively, the first side 1114 and the second side 1115 may be arranged at an angle.

Exemplarily, the base 11 includes a plurality of first grooves 113. For example, the number of the first grooves 113 can be three, and the three first grooves 113 can be respectively located at the first corner 1111, the second corner 1112, and the third corner 1113 of the bottom 111.

Exemplarily, the bottom 111 of the base 11 has a light-through hole 1116 , and the side 112 of the base 11 includes an avoidance hole 1121 . The light-through hole 1116 of the bottom 111 is connected to the avoidance hole 1121 of the side 112 .

For example, the base 11 may include a metal part and an insulating part formed into an integral structure with the base 11 by insert-molding or the like. In this way, the overall strength of the base 11 is better.

FIG8 is a first partial structural assembly diagram of the motor 1 shown in FIG5 in one embodiment.

As shown in FIG8 , the motor circuit board 12 exemplarily includes a mounting portion 121 and a pin end portion 122. The pin end portion 122 of the motor circuit board 12 can be bent relative to the mounting portion 121. Exemplarily, the mounting portion 121 of the motor circuit board 12 can be substantially L-shaped. Exemplarily, the mounting portion 121 and the pin end portion 122 can be substantially perpendicular.

For example, the motor circuit board 12 can be fixedly connected to the base 11. The mounting portion 121 of the motor circuit board 12 can be fixedly connected to the bottom 111 of the base 11. The pin end 122 of the motor circuit board 12 can be fixed to the side of the bottom 111 of the base 11.

For example, the first connecting member 131 can be movably connected to the base 11. The plurality of first connecting members 131 can be installed in a one-to-one correspondence with the plurality of first grooves 113 of the base 11. The first grooves 113 can limit the first connecting members 131. Part of the outer surface of the first connecting member 131 can be raised relative to the bottom 111 of the base 11.

For example, the first connecting member 131 may contact a metal member in the base 11 to reduce a friction coefficient of the movement of the first connecting member 131 .

It is understood that the first connecting member 131 can adopt a ball structure. In other embodiments, the first connecting member 131 can also adopt a sliding shaft structure or other structures. The present application does not limit the specific structure of the first connecting member 131.

FIG9 is a second partial structural assembly diagram of the motor 1 shown in FIG5 in one embodiment.

As shown in Figure 9, the first anti-shake coil 141 can be fixedly connected to the base 11. For example, the first anti-shake coil 141 can be fixedly connected to the first side 1114 of the bottom 111 through the motor circuit board 12 (see Figure 7). The first anti-shake coil 141 can be electrically connected to the motor circuit board 12. In other embodiments, the electrical connection method of the first anti-shake coil 141 is not specifically limited. For example, the first anti-shake coil 141 can be directly electrically connected to the conductive part in the base 11 (not shown in the drawings). It can be understood that the conductive part can be formed in the base 11 by methods such as insert-molding.

For example, the anti-shake drive mechanism 14 may further include a first anti-shake sensor 145. The first anti-shake sensor 145 may be fixedly and electrically connected to the motor circuit board 12. The first anti-shake sensor 145 may be located inside the first anti-shake coil 141. In other embodiments, the electrical connection method of the first anti-shake sensor 145 is not specifically limited.

As shown in Figure 9, the second anti-shake coil 143 can be fixedly connected to the base 11. For example, the second anti-shake coil 143 can be fixedly connected to the second edge 1115 of the bottom 111 via the motor circuit board 12 (see Figure 7). The second anti-shake coil 143 can be electrically connected to the motor circuit board 12. In other embodiments, the electrical connection method of the second anti-shake coil 143 is not specifically limited.

For example, the anti-shake drive mechanism 14 may further include a second anti-shake sensor 146. The second anti-shake sensor 146 may be fixedly and electrically connected to the motor circuit board 12. The second anti-shake sensor 146 may be located inside the second anti-shake coil 143. In other embodiments, the electrical connection method of the second anti-shake sensor 146 is not specifically limited.

Figure 10 is an enlarged structural diagram of one embodiment of the guide bracket 15 shown in Figure 5. Figure 11 is a structural diagram of the guide bracket 15 shown in Figure 10 at another angle.

As shown in FIG. 10 and FIG. 11 , illustratively, the guide bracket 15 may be substantially in an “L” shape.

For example, the guide bracket 15 may include a plurality of guide blocks 151 and a plurality of connecting sections 152. The number of the guide blocks 151 may be three. There may be two connecting sections 152. The connecting section 152 is located between the two guide blocks 151, and the two connecting sections 152 may be arranged at an angle.

Illustratively, the guide block 151 may have a first surface 1511 and a second surface 1512. The first surface 1511 and the second surface 1512 may be arranged to face each other.

For example, the guide block 151 may include a plurality of second grooves 1513 and a plurality of third grooves 1514. In this embodiment, the number of the second grooves 1513 and the number of the third grooves 1514 may both be three.

For example, the second groove 1513 and the third groove 1514 may be arranged in opposite directions. The second groove 1513 may pass through the first surface 1511 of the guide bracket 15 , and the third groove 1514 may pass through the second surface 1512 of the guide bracket 15 .

For example, the cross section of at least one second groove 1513 may be substantially V-shaped, or the cross section of at least one second groove 1513 may be substantially U-shaped. The extension direction of the second groove 1513 may be parallel to the second direction Y.

For example, the cross section of the third groove 1514 may be substantially U-shaped.

Figure 12 is a third diagram of a partial structural assembly of the motor 1 shown in Figure 5 in one embodiment. Figure 13 is a partial cross-sectional view of the motor 1 shown in Figure 12 at line B-B in one embodiment.

As shown in Figures 12 and 13, the guide bracket 15 can be movably connected to the base 11. For example, the three guide blocks 151 of the guide bracket 15 are arranged in a one-to-one correspondence with the three first grooves 113 of the base 11. The three second grooves 1513 of the guide bracket 15 are arranged in a one-to-one correspondence with the three first grooves 113 of the base 11. The first connecting members 131 installed in the first grooves 113 can be partially embedded in the second grooves 1513. In this case, the guide bracket 15 is movably connected to the base 11 via the multiple first connecting members 131.

For example, the first groove 113 can limit and guide the first connecting member 131, and the first connecting member 131 can move in the second direction Y within the second groove 1513. Therefore, the guide bracket 15 can also slide relative to the base 11 in a direction parallel to the second direction Y. In other embodiments, by changing the shape and size of the first groove 113 and the second groove 1513, the first connecting member 131 can move in the second direction Y within the first groove 113, and the second groove 1513 can limit and guide the first connecting member 131.

For example, the three third grooves 1514 of the guide bracket 15 can be arranged in a one-to-one correspondence with the three fourth grooves 164 of the anti-shake bracket 16, and the second connecting members 132 installed in the third grooves 1514 can be partially embedded in the fourth grooves 164. In this case, the anti-shake bracket 16 can be movably connected to the guide bracket 15 via the multiple second connecting members 132.

For example, the third groove 1514 can limit and guide the second connecting member 132, and the second connecting member 132 can move within the fourth groove 164 along the first direction X. Therefore, the anti-shake bracket 16 can slide relative to the base 11 in a direction parallel to the first direction X. In other embodiments, by changing the shape and size of the third groove 1514 and the fourth groove 164, the second connecting member 132 can move within the third groove 1514 along the first direction X, and the fourth groove 164 can limit and guide the second connecting member 132.

It is understood that the second connecting member 132 can adopt a ball structure. In other embodiments, the second connecting member 132 can also adopt a sliding shaft structure or other structures. The present application does not limit the specific structure of the second connecting member 132.

Fig. 14 is an enlarged schematic diagram of the structure of the anti-shake bracket 16 shown in Fig. 5 in one embodiment. Fig. 15 is a schematic diagram of the structure of the anti-shake bracket 16 shown in Fig. 14 at another angle.

As shown in Figures 14 and 15, the anti-shake bracket 16 includes a bottom plate 161, a side plate 162, a first bump 163a, and a second bump 163b. The side plate 162, the first bump 163a, and the second bump 163b are all connected to the bottom plate 161. The side plate 162, the first bump 163a, and the second bump 163b are spaced apart from each other.

For example, the anti-shake bracket 16 may further include a mounting hole 16a. The mounting hole 16a of the anti-shake bracket 16 may extend through the bottom plate 161 of the anti-shake bracket 16 along the third direction Z. The mounting hole 16a may be generally circular. The side plate 162, the first protrusion 163a, and the second protrusion 163b may be disposed around the mounting hole 16a of the anti-shake bracket 16.

For example, a fixing block 161a is protruded from the wall of the mounting hole 16a. For example, the fixing block 161a can be ring-shaped. The fixing block 161a and the bottom plate 161 of the anti-shake bracket 16 can be stepped.

Illustratively, the mounting hole 16 a forms a first opening 162 a on the bottom plate 161 of the anti-shake bracket 16 .

For example, the anti-shake bracket 16 may further include a fourth groove 164. The number of the fourth grooves 164 may match the number of the second connecting members 132, and the number of the fourth grooves 164 may be three. The extension direction of the fourth groove 164 may be parallel to the first direction X.

For example, the anti-shake bracket 16 includes a first mounting groove 165. There may be two first mounting grooves 165. The first mounting grooves 165 may be located on the side plate 162. The two first mounting grooves 165 may be spaced apart.

FIG16 is a fourth diagram of a partial structural assembly of the motor 1 shown in FIG5 in one embodiment.

As shown in FIG16 , the third connecting member 133 can be installed in the first mounting slot 165 of the anti-shake bracket 16. For example, the third connecting member 133 can be fixedly connected to the anti-shake bracket 16 by bonding or other means. In other embodiments, the third connecting member 133 can be slidably connected to the anti-shake bracket 16.

FIG17 is a fifth diagram of a partial structural assembly of the motor 1 shown in FIG5 in one embodiment.

As shown in Figure 17, the first anti-shake magnetic component 142 can be installed on the anti-shake bracket 16. For example, the first anti-shake magnetic component 142 can be fixed to the anti-shake bracket 16 by bonding or other means. The first anti-shake magnetic component 142 can be a magnet or a component with magnetism. For example, the first anti-shake magnetic component 142 includes at least two opposite polarity directions. For example, the first anti-shake magnetic component 142 can include three magnets arranged along the first direction X. It can be understood that the polarity direction can be the direction of the North Pole (N) toward the South Pole (S), or the direction of the South Pole (S) toward the North Pole (N).

As shown in Figure 17, the second anti-shake magnetic component 144 can be mounted on the anti-shake bracket 16. For example, the second anti-shake magnetic component 144 can be fixed to the anti-shake bracket 16 by bonding or other means. The second anti-shake magnetic component 144 can be a magnet or a magnetic component. For example, the second anti-shake magnetic component 144 includes at least two opposite polarity directions. For example, the second anti-shake magnetic component 144 can include three magnets arranged along the second direction Y.

Figure 18 is a partial structural assembly diagram of the camera module 100 shown in Figure 4 in one embodiment. Figure 19 is a partial cross-sectional schematic diagram of the camera module 100 shown in Figure 18 at line C-C in one embodiment. Figure 20 is a partial cross-sectional schematic diagram of the camera module 100 shown in Figure 18 at line D-D in one embodiment.

As shown in Figures 18 to 20, the anti-shake bracket 16 can be movably connected to the base 11 via the guide bracket 15. The anti-shake bracket 16 can be located on the side of the guide bracket 15 away from the base 11. Specifically, the three guide blocks 151 of the guide bracket 15 are located between the anti-shake bracket 16 and the base 11. The third grooves 1514 of the guide bracket 15 are corresponding to the three fourth grooves 164 of the anti-shake bracket 16. The second connectors 132 installed in the third grooves 1514 can be at least partially embedded in the fourth grooves 164. In this case, the anti-shake bracket 16 is connected to the three guide blocks 151 of the guide bracket 15 via the multiple second connectors 132.

It can be understood that the guide bracket 15 can ensure the connection reliability between the anti-shake bracket 16 and the base 11, and can achieve the functions of stable support and accurate guidance, ensuring the stability of the relative position of the first anti-shake coil 141 and the first anti-shake magnetic part 142 and the relative position of the second anti-shake coil 143 and the second anti-shake magnetic part 144. The motor 1 can achieve precise guidance during the optical image stabilization process through the matching structure of the base 11, the first connecting part 131, the guide bracket 15, the second connecting part 132 and the anti-shake bracket 16, thereby solving the problem of excessive lens tilt when the traditional motor performs optical image stabilization, and making the optical image stabilization movement of the camera module 100 smooth and reliable.

Exemplarily, multiple first connecting members 131 are located in the first groove 113, and multiple second connecting members 132 are located in the fourth groove 164 whose extension direction is parallel to the first direction X. The anti-shake bracket 16 can move relative to the base 11 in a direction perpendicular to the third direction Z (i.e., the X-Y plane). In this way, the relative movement direction of the anti-shake bracket 16 and the guide bracket 15 is different from the relative movement direction of the guide bracket 15 and the base.

As shown in FIG. 18 to FIG. 20 , the first lens 2 can be fixedly connected to the anti-shake bracket 16 .

For example, the first lens 2 can be positioned within the mounting hole 16a of the anti-shake bracket 16. The first lens 2 can be fixed to the fixing block 161a, and the first lens 2 does not extend beyond the first opening 162a. In one embodiment, a portion of the first lens 2 can be positioned on a side of the fixing block 161a facing the base 11 and fixedly connected to the surface of the fixing block 161a facing the base 11. In other embodiments, the connection position of the first lens 2 and the anti-shake bracket 16 is not specifically limited.

It is understandable that during the focusing process of the second lens 3 , since the first lens 2 does not extend out of the first opening 162 a , no collision occurs between the first lens 2 and the second lens 3 , thereby avoiding damage to the first lens 2 or the second lens 3 .

It is understandable that the first lens 2 is fixedly connected to the fixing block 161 a to achieve a fixed connection with the anti-shake bracket 16 , and the connection with the anti-shake bracket 16 is more reliable.

For example, the first anti-shake coil 141 and the first anti-shake magnetic component 142 are arranged in the third direction Z, with the first anti-shake coil 141 facing the first anti-shake magnetic component 142, to drive the anti-shake bracket 16 and the first lens 2 to move relative to the base 11 in the first direction X. The first anti-shake coil 141 facing the first anti-shake magnetic component 142 means that the winding plane of the first anti-shake coil 141 faces the first anti-shake magnetic component 142. For example, the winding plane of the first anti-shake coil 141 can be arranged parallel to the X-Y plane.

For example, the first anti-shake sensor 145 may be used to detect a position change of the anti-shake bracket 16 in the first direction X.

For example, the second anti-shake coil 143 and the second anti-shake magnetic element 144 are arranged in the third direction Z, with the second anti-shake coil 143 facing the second anti-shake magnetic element 144, to drive the anti-shake bracket 16 and the first lens 2 to move relative to the base 11 in the second direction Y. The second anti-shake coil 143 facing the second anti-shake magnetic element 144 means that the winding plane of the second anti-shake coil 143 faces the second anti-shake magnetic element 144. For example, the winding plane of the second anti-shake coil 143 can be arranged parallel to the X-Y plane.

For example, the second anti-shake sensor 146 (see FIG. 12 ) may be used to detect a position change of the anti-shake bracket 16 in the second direction Y.

It is understandable that the first anti-shake sensor 145 and the second anti-shake sensor 146 can detect the position change of the anti-shake bracket 16, and the camera module 100 can adjust the position of the anti-shake bracket 16 according to the detection results, so as to achieve a better optical anti-shake effect.

It can be understood that, driven by the first anti-shake coil 141, the first anti-shake magnetic member 142, the second anti-shake coil 143 and the second anti-shake magnetic member 144, the anti-shake bracket 16 can drive the first lens 2 to move relative to the base 11 along the first direction X and/or the second direction Y, thereby Realize the movement of the first lens 2 in the XY plane.

It is understood that the direction in which the first anti-shake coil 141 and the first anti-shake magnetic member 142 drive the anti-shake bracket 16 and the first lens 2 to move can be perpendicular to the direction in which the second anti-shake coil 143 and the second anti-shake magnetic member 144 drive the anti-shake bracket 16 and the first lens 2 to move. In other embodiments, the direction in which the first anti-shake coil 141 and the first anti-shake magnetic member 142 drive the anti-shake bracket 16 to move can intersect with the direction in which the second anti-shake coil 143 and the second anti-shake magnetic member 144 drive the anti-shake bracket 16 to move, but are not perpendicular to each other.

It is understood that, under the action of the first anti-shake coil 141, the first anti-shake magnetic element 142, the second anti-shake coil 143, and the second anti-shake magnetic element 144, the anti-shake bracket 16 can drive the first lens 2 to move perpendicular to the third direction Z (i.e., the X-Y plane) relative to the base 11. Furthermore, based on the two sets of drive mechanisms of the first anti-shake coil 141 and the first anti-shake magnetic element 142, the second anti-shake coil 143, and the second anti-shake magnetic element 144, the anti-shake bracket 16 and the first lens 2 can achieve a large range of motion in the X-Y plane.

FIG21 is an enlarged schematic diagram of the structure of the focusing circuit board 23 shown in FIG5 at another angle.

As shown in FIG21 , for example, the focusing circuit board 23 may be substantially in the shape of a Chinese character "口" with a notch. A reinforcing plate is provided on at least a portion of the outer side of the focusing circuit board 23 .

Exemplarily, the focusing circuit board 23 includes a first fixing portion 231 and a second fixing portion 232. The first fixing portion 231 and the second fixing portion 232 may be located on both sides of the notch.

FIG. 22 is a sixth diagram of a partial structural assembly of the motor 1 shown in FIG. 5 in one embodiment.

Referring to Figure 22 and in conjunction with Figure 14 , the focus circuit board 23 can be exemplarily fixed to the anti-shake bracket 16. Exemplarily, a portion of the focus circuit board 23 is fixed to the side plate 162 of the anti-shake bracket 16 and is located on the inner side of the anti-shake bracket 16. A portion of the focus circuit board 23 is also fixed to the first and second bumps 163a, 163b of the anti-shake bracket 16. Part of the focus circuit board 23 is located between the first bump 163a and the side plate 162, part of the focus circuit board 23 is located between the first and second bumps 163a, 163b, and part of the focus circuit board 23 is located between the second bump 163b and the side plate 162.

For example, the focus coil 221 can be fixedly connected to the focus circuit board 23 and electrically connected to the focus circuit board 23. In one embodiment, the focus coil 221 can be fixedly connected to a side of the first fixing portion 231 of the focus circuit board 23 away from the side plate 162 of the anti-shake bracket 16.

Illustratively, the focus drive mechanism 22 further includes a focus sensor 24. The focus sensor 24 can be fixedly connected to the focus circuit board 23 and electrically connected to the focus circuit board 23. In one embodiment, the focus sensor 24 can be fixedly connected to a side of the first fixing portion 231 away from the side plate 162 of the anti-shake bracket 16 and located inside the focus coil 221.

FIG23 is a seventh partial structural assembly diagram of the motor 1 shown in FIG5 in one embodiment.

As shown in FIG. 23 , illustratively, the focus bracket 21 may be substantially frame-shaped, and the focus bracket 21 has an installation space 21 a .

Exemplarily, the focus bracket 21 includes a plurality of second mounting grooves 211 .

For example, there may be two second mounting grooves 211. The two second mounting grooves 211 may be disposed facing away from the mounting space 21a and spaced apart.

For example, the focus magnetic member 222 may be fixedly connected to the focus bracket 21. For example, the focus magnetic member 222 may be fixed to the focus bracket 21 by bonding or the like.

For example, the focusing magnetic member 222 may be a magnet or a component having magnetism. In this embodiment, the focusing magnetic member 222 includes two magnets arranged along the third direction Z.

Fig. 24 is a second diagram of a partial structural assembly of the camera module 100 shown in Fig. 4 in one embodiment. Fig. 25 is a partial cross-sectional view of the camera module 100 shown in Fig. 24 at line E-E in one embodiment.

As shown in Figures 24 and 25, the focus bracket 21 can be slidably connected to the anti-shake bracket 16. For example, the two first mounting slots 165 of the anti-shake bracket 16 correspond to the two second mounting slots 211 of the focus bracket 21 (see Figure 23). The two third connecting members 133 are mounted in the first mounting slots 165 of the anti-shake bracket 16 and at least partially embedded in the second mounting slots 211 of the focus bracket 21. The relative sliding direction between the anti-shake bracket 16 and the focus bracket 21 can be parallel to the third direction Z. In other embodiments, the third connecting members 133 can be fixedly connected to the second mounting slots 211 of the focus bracket 21 and at least partially embedded in the first mounting slots 165 of the anti-shake bracket 16.

Illustratively, a buffer member (not shown in the drawings) is provided between the anti-shake bracket 16 and the focus bracket 21 to reduce collision between the anti-shake bracket 16 and the focus bracket 21 , thereby avoiding damage to the anti-shake bracket 16 and the focus bracket 21 .

As shown in FIG. 25 , illustratively, the focusing coil 221 may be arranged corresponding to the focusing magnetic member 222 .

For example, the second lens 3 may be fixedly connected to the focus bracket 21. The installation space 21a of the focus bracket 21 may be used to install the second lens 3. At least a portion of the second lens 3 may be located outside the focus bracket 21.

For example, the mounting space 21a of the focus bracket 21 may be arranged opposite to the mounting hole 16a of the anti-shake bracket 16. In this way, the optical axis of the first lens 2 may be substantially parallel to the optical axis of the second lens 3.

As shown in Figure 25, the focus coil 221 is fixed to the focus circuit board 23, the focus magnetic part 222 is fixed to the focus bracket 21, and the focus coil 221 is arranged facing the focus magnetic part 222, and is used to drive the focus bracket 21 to move relative to the anti-shake bracket 16 along the third direction Z. When the focus bracket 21 moves relative to the anti-shake bracket 16 along the third direction Z, the focus bracket 21 can drive the second lens 3 mounted thereon to move along the third direction Z. At this time, the motor 1 can realize automatic focus of the camera module 100. It can be understood that the focus coil 221 is arranged facing the focus magnetic part 222, which means that the winding plane of the focus coil 221 faces the focus magnetic part 222.

For example, the focus sensor 24 can be used to detect the position change of the focus bracket 21 in the third direction Z. In this way, the camera module 100 can adjust the position of the focus bracket 21 according to the detection result of the focus sensor 24, thereby achieving a better focusing effect.

It is understandable that the focus drive mechanism 22 drives the focus bracket 21 to move along the third direction Z, thereby driving the second lens 3 to move along the third direction Z, thereby achieving automatic focus of the camera module 100. Among them, when the second lens 3 performs automatic focus, the relative distance between the first lens 2 and the second lens 3 in the third direction Z will change, and a smaller distance change can achieve a larger focal length change, which is beneficial to improving the focusing ability of the camera module 100. It is understandable that the second lens 3 with a shorter focusing stroke can achieve automatic focus of the motor 1 in the macro state, thereby improving the imaging quality of the camera module 100 in the macro state.

Figure 26 is a partial cross-sectional schematic diagram of an embodiment of the camera module 100 shown in Figure 24 at the F-F line.

As shown in Figures 25 and 26, the first anti-shake coil 141 and the first anti-shake magnetic part 142 are correspondingly arranged, and the second anti-shake coil 143 and the second anti-shake magnetic part 144 are correspondingly arranged. The first anti-shake coil 141 and the first anti-shake magnetic part 142, the second anti-shake coil 143 and the second anti-shake magnetic part 144 jointly drive the anti-shake bracket 16 to move along the X-Y plane, thereby driving the first lens 2 to move along the X-Y plane, and then realizing optical image stabilization of the camera module 100.

It is understood that, compared to a separate motor 1 in which the anti-shake module 1b and the focus module 1c are provided separately, the integrated motor 1 formed by the anti-shake module 1b and the focus module 1c is smaller in size, facilitating a miniaturized design of the camera module 100, thereby conserving internal space within the electronic device 1000. Furthermore, the integrated motor 1 eliminates one motor compared to a separate motor, thereby reducing the manufacturing cost of the camera module 100.

It is understandable that, compared to the solution of achieving optical image stabilization and autofocus by having the anti-shake module 1b and the focus module 1c drive the same lens, the solution of achieving optical image stabilization and autofocus by having the anti-shake module 1b drive the first lens 2 and the focus module 1c drive the second lens 3 can, when the camera module 100 is focusing, only drive the second lens 3 to move along the third direction Z, while the first lens 2 does not need to move along the third direction Z. In this way, the focus stroke of the camera module 100 is the distance that the second lens 3 moves along its optical axis. Compared with camera modules 100 with the same imaging quality, the focus stroke of the camera module 100 of this embodiment is shorter.

It is understandable that grouping the first lens 2 and the second lens 3 of the camera module 100 can avoid the anti-shake image rotation problem of the camera module 100, and the user's focusing experience is better.

It can be understood that the optical axis directions of the first lens 2 and the second lens 3 can be roughly parallel to the thickness direction of the electronic device 1000. The diameters of the first lens 2 and the second lens 3 are not limited by the thickness of the electronic device 1000. There is no need to cut the lens into a specific diameter range in the thickness direction of the electronic device 1000. The first lens 2 and the second lens 3 are symmetrical in the second direction Y and the third direction Z. The camera module 100 does not have the problems of imaging ST separation and poor resolution.

FIG27 is a third diagram of a partial structural assembly of the camera module 100 shown in FIG4 in one embodiment.

As shown in FIG27 , for example, the pressing member 17 can be fixed to the side of the anti-shake bracket 16 that faces away from the base 11. It will be appreciated that the pressing member 17 can cooperate with the anti-shake bracket 16 to limit the movement of the focus bracket 21 in the third direction Z, thereby preventing the focus bracket 21 from separating from the anti-shake bracket 16 during the focusing process.

FIG28 is an enlarged schematic diagram of the structure of the housing 18 shown in FIG5 at another angle.

As shown in FIG. 28 , the housing 18 may be exemplarily in the shape of a substantially square cover.

Exemplarily, the housing 18 is provided with a through hole 181 , through which a portion of the structure of the motor 1 can be exposed.

Exemplarily, the housing 18 is provided with a buffer member 182 , which is located inside the housing 18 and on one side of the through hole 181 .

Figure 29 is a partial cross-sectional schematic diagram of an embodiment of the camera module 100 shown in Figure 3 at the G-G line.

As shown in Figures 28 and 29, for example, the housing 18 can be adapted to the shape of the base 11 and can be mounted on the base 11. The housing 18 can be fixedly connected to the base 11 by gluing or other methods. The housing 18 can be assembled with the base 11 to jointly encapsulate and protect the internal structure of the motor 1.

Exemplarily, the focus bracket 21 and a portion of the structure of the second lens 3 may be exposed through the through hole 181 of the housing 18 .

Exemplarily, the buffer member 182 can be spaced apart from the pressing member 17 . It can be understood that the buffer member 182 can prevent the collision between the pressing member 17 and the housing 18 .

FIG30 is a partially exploded schematic diagram of the prism assembly 4 shown in FIG4 in one embodiment.

As shown in FIG30 , the prism assembly 4 includes a prism 41 , a prism bracket 42 and a light shielding sheet 43 .

For example, the cross section of the prism 41 may be approximately boat-shaped. In other embodiments, the cross section of the prism 41 may be triangular, parallelogram, or irregular, etc. This application does not limit this in detail.

For example, the prism 41 may include a first surface 411, a second surface 412, a first side surface 413, and a second side surface 414. The first surface 411 and the second surface 412 may be substantially parallel. The first side surface 413 and the second side surface 414 may be arranged at an angle. The first surface 411, the first side surface 413, the second surface 412, and the second side surface 414 may be connected end to end in sequence. In this case, the first side surface 413 and the second side surface 414 may be located on either side of the first surface 411.

FIG31 is a partial structural assembly diagram of the prism assembly 4 shown in FIG30 in one embodiment.

As shown in Fig. 31, the light shielding sheet 43 may be fixed to the first surface 411 of the prism 41. For example, the light shielding sheet 43 may be made of a material having light shielding properties, such as plastic, metal, or a composite material.

It is understood that the light shielding sheet 43 separates the first surface 411, thereby forming an incident surface S7 and an exit surface S11 that are spaced apart. In other words, the light shielding sheet 43 can be located between the incident surface S7 and the exit surface S11 of the prism 41 to prevent light from prematurely exiting the prism 41 from the portion between the incident surface S7 and the exit surface S11.

It is understood that the incident surface S7 and the exit surface S11 of the prism 41 in this embodiment are both located on the first surface 411 of the prism 41, that is, the incident surface S7 and the exit surface S11 are located on the same side of the prism assembly 4. In other embodiments, the incident surface S7 and the exit surface S11 of the prism 41 may be located on the first surface 411 of the prism 41, and the other may be located on any one of the second surface 412, the first side surface 413, and the second side surface 414 of the prism 41.

FIG32 is an enlarged schematic diagram of the structure of the prism bracket 42 shown in FIG30 at another angle.

As shown in Figures 30 and 32, illustratively, the prism bracket 42 includes a first mounting portion 421 and a second mounting portion 422. The second mounting portion 422 is protruding from one end of the first mounting portion 421. It will be understood that although the prism bracket 42 is described as two parts in this embodiment, this does not affect the prism bracket 42 being a one-piece structure, that is, the first mounting portion 421 and the second mounting portion 422 can be formed in one piece. In other embodiments, the second mounting portion 422 of the prism bracket 42 can be fixedly connected to the first mounting portion 421 by gluing, welding, or the like.

For example, the space enclosed by the first mounting portion 421 and the second mounting portion 422 may constitute an accommodating space 423 of the prism holder 42 . The accommodating space 423 is in communication with the outside of the prism holder 42 .

For example, the accommodating space 423 of the prism bracket 42 may include a first supporting surface 4231 and a second supporting surface 4232. The first supporting surface 4231 and the second supporting surface 4232 may be arranged at an angle therebetween.

Figure 33 is a partial cross-sectional schematic diagram 1 of an embodiment of the camera module 100 shown in Figure 3 at the H-H line.

As shown in FIG33 , the prism 41 can be fixedly connected to the prism bracket 42. The prism 41 is located in the accommodation space 423 of the prism bracket 42. For example, the first surface 411 of the prism 41 can be substantially flush with the top of the second mounting portion 422 of the prism bracket 42.

For example, the first side surface 413 of the prism 41 may be substantially parallel to the first supporting surface 4231 of the accommodating space 423, and the first side surface 413 of the prism 41 may be spaced apart from the first supporting surface 4231 of the accommodating space 423. The second side surface 414 of the prism 41 may be substantially parallel to the second supporting surface 4232 of the accommodating space 423, and the second side surface 414 of the prism 41 may be spaced apart from the second supporting surface 4232 of the accommodating space 423.

For example, the prism assembly 4 can be fixedly connected to the motor 1. For example, a portion of the prism assembly 4 can extend from the light-through hole 1116 of the bottom 111 of the base 11 and the avoidance hole 1121 of the side 112 into the avoidance space 1a of the motor 1.

For example, a portion of the base 11 of the motor 1 may be fixedly connected to the light shielding sheet 43 of the prism assembly 4. The prism bracket 42 of the prism assembly 4 may be fixedly connected to a side of the base 11 away from the anti-shake bracket 16.

Exemplarily, the incident surface S7 of the prism 41 may be disposed facing the first lens 2 and the second lens 3 .

Exemplarily, the emission surface S11 of the prism 41 is located outside the motor 1 , and is located on the side of the prism 41 facing the motor 1 .

It is understood that the above text specifically introduces a prism assembly 4 in conjunction with the relevant drawings. In other embodiments, the structure of the prism assembly 4 is not specifically limited.

FIG34 is a schematic exploded view of the image sensor assembly 5 shown in FIG4 in one embodiment.

As shown in FIG. 34 , the image sensor assembly 5 includes an image sensor 51 , a filter 52 , a filter holder 53 and a circuit board 54 .

Exemplarily, the circuit board 54 includes a first board portion 541, a second board portion 542, and a third board portion 543. The second board portion 542 connects the first board portion 541 and the third board portion 543. The first board portion 541 and the third board portion 543 are opposite to each other and spaced apart.

FIG35 is a partial cross-sectional schematic diagram of an embodiment of the image sensor assembly 5 shown in FIG4 at line I-I.

As shown in FIG35 , the image sensor 51 can be fixed to a side of the first plate portion 541 of the circuit board 54 that faces the third plate portion 543, and can be electrically connected to the circuit board 54. In this case, signals can be transmitted between the image sensor 51 and the circuit board 54. In other embodiments, the position where the image sensor 51 is fixed to the circuit board 54 is not specifically limited.

For example, the filter holder 53 can be fixed to the first plate portion 541 of the circuit board 54. The filter holder 53 and the image sensor 51 can be located on the same side of the first plate portion 541 of the circuit board 54. The filter holder 53 is provided with a through hole 531. In other embodiments, the position where the filter holder 53 is fixed to the circuit board 54 is not specifically limited.

Illustratively, the filter 52 is fixedly connected to the filter holder 53. The filter 52 can be located within the through-hole 531. The filter 52 is also disposed opposite the image sensor 51. The filter 52 can be used to filter infrared light or blue light from light before entering the image sensor 51, thereby ensuring that the image sensor 51 has better imaging quality.

Figure 36 is a second partial cross-sectional schematic diagram of an embodiment of the camera module 100 shown in Figure 3 at the H-H line.

As shown in FIG. 36 , the prism assembly 4 is fixed to the third plate portion 543 of the circuit board 54 , and a portion of the prism assembly 4 is located between the first plate portion 541 and the third plate portion 543 .

For example, the first mounting portion 421 of the prism bracket 42 may be fixed to the third plate portion 543. The emission surface S11 of the prism 41 is disposed opposite to the filter 52.

In other embodiments, the position where the prism assembly 4 is fixed to the circuit board 54 is not specifically limited.

For example, light enters the interior of the camera module 100 from the second lens 3, then passes through the first lens 2 and the incident surface S7 of the prism 41 in sequence before entering the interior of the prism 41. After entering the prism 41, the light can be reflected in sequence on a portion of the first side surface 413, a portion of the first surface 411, and a portion of the second side surface 414 of the prism 41. After at least three reflections, the light can be emitted from the prism 41 through the exit surface S11 of the prism 41, pass through the filter 52, and reach the image sensor 51. The image sensor 51 converts the image information carried by the light into an electrical signal, thereby achieving imaging.

It is understood that after entering the prism 41, the light can be refracted at least three times inside the prism 41. In this way, the optical path of the camera module 100 is relatively long, enabling shooting in a telephoto state, thereby improving the imaging quality of the camera module 100 in the telephoto state. In other embodiments, the light can be refracted twice inside the prism 41. In this case, the exit surface S11 of the prism 41 can be part of the second side surface 414 of the prism 41, and the image sensor 51 of the image sensor assembly 5 can be arranged facing the second side surface 414.

It can be understood that, in one embodiment, optical image stabilization is achieved by driving the first lens 2 and the second lens 3 to move in the X-Y plane through the anti-shake module 1b, and automatic focus is achieved by driving the second lens 3 to move along the third direction Z through the focusing module 1c, and the anti-shake module 1b and the focusing module 1c are an integrated structure, the motor 1 has a simpler structure, a smaller size, and a lower manufacturing cost.

It is understandable that when the camera module 100 switches to shooting in the telephoto state, the focus module 1c can drive the second lens 3 to move toward the image side of the camera module 100 in the third direction Z, thereby changing the focal length of the camera module 100 and enabling the camera module 100 to focus and shoot in the telephoto state. In addition, by setting the motor 1 to be fixedly connected to the prism assembly 4, with the incident surface S7 of the prism 41 facing the first lens 2 and the second lens 3, and by setting the image sensor assembly 5 to be fixedly connected to the prism assembly 4, with the exit surface S11 of the prism 41 facing the image sensor 51, the reflected light path of the light in the prism 41 is longer, thereby satisfying the telephoto characteristics of the camera module 100 and improving the telephoto shooting performance of the camera module 100.

It can be understood that when the camera module 100 switches to shooting in the macro state, the focusing module 1c can drive the second lens 3 to move toward the object side of the camera module 100 in the third direction Z, thereby changing the focal length of the camera module 100, thereby enabling the camera module 100 to focus and shoot in the macro state.

It is understandable that when the camera module 100 is in operation, the first lens 2 remains stationary in the third direction Z, while the second lens 3 moves along the third direction Z to achieve focusing. The structural arrangement of the camera module 100 is relatively reasonable, such that the movement distance of the second lens 3 along the third direction Z is the focusing stroke of the camera module 100. Since the movement distance of the second lens 3 is relatively short, the focusing stroke of the camera module 100 is also relatively short, and the space requirement of the camera module 100 in the third direction Z is also relatively small, thereby enabling a miniaturized arrangement of the camera module 100 and a thinner arrangement of the electronic device 1000.

The above specifically introduces the structure of the relevant components of the camera module 100. The following will specifically introduce the structure of the camera module 100 and the setting of relevant optical parameters in conjunction with the accompanying drawings.

Exemplarily, the first lens 2 and the second lens 3 may have opposite optical powers. Exemplarily, the first lens 2 may have positive optical power, and the second lens 3 may have negative optical power, or the first lens 2 may have negative optical power, and the second lens 3 may have positive optical power. It can be understood that by reasonably configuring the optical powers of the first lens 2 and the second lens 3 and setting the first lens 2 and the second lens 3 to have opposite optical powers, it is beneficial to achieve focusing and macro focusing, reduce the focusing stroke, improve the focusing ability, and help improve the overall image quality of the camera module 100 when imaging in close-up, increase the amount of light entering the system, promote macro imaging, and balance the difference in imaging quality between long-range shooting and close-up shooting, so that objects at different distances have good image quality and high imaging clarity.

It can be understood that when the first lens 2 has a negative optical power and the second lens 3 has a positive optical power, the second lens 3 can be used to converge the light beam, so that the diameter of the light beam entering the first lens 2 is smaller, and the aperture of the first lens 2 is no longer the maximum limit of the light aperture, which is conducive to the miniaturization and large aperture design of the camera module 100, effectively increasing the light aperture, achieving a smaller aperture number, and enhancing the focusing ability. It is conducive to macro shooting.

In one embodiment, the first lens 2 may include at least one lens, the second lens 3 may include at least one lens, and the first lens 2 may include at least one lens with negative optical focal length. For example, the second lens 3 includes a first lens L1 and a second lens L2, and the first lens 2 includes a third lens L3. The first lens L1, the second lens L2, and the third lens L3 may be arranged in sequence from the object side to the image side. The first lens L1 may have positive optical focal length, the second lens L2 may have negative optical focal length, and the third lens L3 may have negative optical focal length. It can be understood that a reasonable configuration of the optical focal lengths of the first lens L1, the second lens L2, and the third lens L3 is conducive to achieving the miniaturization, large aperture, and telephoto features of the camera module 100, and is conducive to the realization of the focusing process of the camera module 100 from the distant view to the near view and improving the imaging quality of the camera module 100.

Exemplarily, the second lens 3 may include at least one lens having an Abbe number less than 40. For example, the Abbe number of the lens of the second lens 3 may be 5, 10, 22, 38, or 39. It is understood that the second lens 3 may include at least one lens with high dispersion. By limiting the Abbe number of at least one lens in the second lens 3 to less than 40, chromatic aberration in the camera module 100 is reduced, thereby ensuring that the camera module 100 has good imaging quality.

For example, the second lens 3 may include a lens with positive optical power, and the lens with the smallest focal length may be made of glass. By making the lens with the smallest focal length and positive optical power in the second lens 3 glass, the size of the camera module 100 can be reduced, miniaturizing the camera module 100, reducing the temperature drift coefficient, minimizing the temperature drift effect, and improving the imaging quality of the camera module 100.

For example, the Abbe number of the lens in the first lens 2 is different from the Abbe number of the prism 41 of the prism assembly 4, which is beneficial for correcting chromatic aberration at object distances from infinity to macro, thereby improving the imaging quality of the camera module 100.

Exemplarily, the camera module 100 can satisfy: f1/EFL＞-1, wherein f1 is the focal length of the first lens 2, and EFL is the effective focal length of the camera module 100. For example, the value of f1/EFL can be equal to -0.999, -0.88, -0.7, 0.56, -0.3 or -0.1, etc. In other embodiments, the value of f1/EFL can also satisfy other ranges. It is understandable that by reasonably limiting the range of f1/EFL, it is beneficial to reduce the aperture number, realize the design of a large aperture, improve the light-clearance diameter of the camera module 100, and ensure the good imaging quality of the camera module 100.

Exemplarily, the camera module 100 can satisfy: f2/EFL≤0.9, where f2 is the focal length of the second lens 3. For example, the value of f2/EFL can be equal to 0.001, 0.11, 0.23, 0.38, 0.45, 0.5, 0.66, 0.75, 0.88 or 0.9, etc. In other embodiments, the value of f2/EFL can also satisfy other ranges. It is understandable that by limiting the range of f2/EFL, the camera module 100 can balance the image quality difference between the long-range shooting and the close-up shooting of the camera module 100 under a smaller assembly sensitivity, thereby obtaining a more uniform image quality.

It can be understood that by reasonably limiting the range of f1/EFL and f2/EFL, the optical focal length of the first lens 2 and the second lens 3 can be reasonably configured, which is beneficial to shortening the focusing stroke of the camera module 100, improving the focusing ability of the camera module 100, and realizing the shooting of the camera module 100 in a macro state, and having good image quality and high imaging clarity when shooting objects at different distances.

Exemplarily, the second lens 3 includes at least one lens with positive optical power, and the ratio of the focal length of the at least one lens with positive optical power in the second lens 3 to the effective focal length EFL of the camera module 100 is less than 1. It can be understood that by setting the ratio of the focal length of the at least one lens with positive optical power in the second lens 3 to the effective focal length EFL of the camera module 100 to be less than 1, it can be ensured that the second lens 3 is provided with a smaller number of lenses and can also provide sufficient optical power for the camera module 100, which can reduce the size of the second lens 3, which is conducive to macro shooting and is also conducive to the telephoto and miniaturized design of the camera module 100.

For example, the camera module 100 can satisfy the following requirement: FOV < 50°, where FOV is the field of view of the camera module 100. For example, the FOV value can be 49.9, 30, 23, 18, 10, 8, 5.3, 3.8, or 0.6. It is understood that by setting the field of view of the camera module 100, the camera module 100 has a telephoto characteristic.

For example, the camera module 100 can satisfy the following requirement: IH > 2 mm, where IH is the maximum image height of the camera module 100. For example, the value of IH can be 2.01, 2.38, 3.54, 4.36, 6.66, or 8.88. It is understood that by reasonably limiting the range of IH, the camera module 100 can have a large target surface, which is conducive to achieving a higher imaging magnification and improving the resolution of the camera module 100.

Exemplarily, the camera module 100 may satisfy the following condition: L/IH>2, where L is the total optical path length of the light after multiple folds within the prism 41 of the prism assembly 4. For example, the value of L/IH may be 2.1, 3.8, 4.5, 5.87, 6.66, or 8.88. It is understood that the total optical path length L of the light within the prism 41 is greater than twice the image height IH, which facilitates multiple folding of the light and increases the optical path length, thereby facilitating the realization of the telephoto characteristics and miniaturization of the camera module 100.

Exemplarily, the camera module 100 may satisfy: Fno < 3.6, where Fno is the aperture number of the camera module 100. For example, the value of Fno may be equal to 0.5, 0.99, 1.53, 1.66, 2.38, 2.66, 3.02, or 3.59, etc. It is understandable that the smaller the value of Fno of the camera module 100, the larger the aperture of the camera module 100; and the larger the value of Fno of the camera module 100, the smaller the aperture of the camera module 100. By limiting the value of Fno of the camera module 100, the camera module 100 has the characteristic of a large aperture.

The following will describe some specific but non-limiting examples of the present application in more detail through two embodiments in combination with relevant drawings.

First embodiment: Please refer to Figures 37 and 38. Figure 37 is a first embodiment of the present application of the camera module 100 provided at an infinite object distance. FIG38 is a structural diagram of the camera module 100 shown in FIG37 in a close-up working state during macro shooting.

For example, the second lens system 3 may include a first lens L1 and a second lens L2, arranged sequentially from the object side to the image side. The first lens L1 may have positive refractive power and may include an object-side surface S1 and an image-side surface S2. The second lens L2 may have negative refractive power and may include an object-side surface S3 and an image-side surface S4.

For example, the first lens element 2 may have negative optical power, the second lens element may include a third lens element L3, the third lens element L3 may have negative optical power, and the third lens element L3 may include an object-side surface S5 and an image-side surface S6.

For example, the first lens L1, the second lens L2, and the third lens L3 can be made of plastic. In other embodiments, the first lens L1, the second lens L2, and the third lens L3 can all be made of glass, or a combination of glass and plastic, which is not limited in this application.

Exemplarily, the prism 41 may include an incident surface S7, a first reflective surface S8, a second reflective surface S9, a third reflective surface S10, and an exit surface S11. The first reflective surface S8 may be a portion of the first side surface 413 of the prism 41, the second reflective surface S9 may be a portion of the first surface 411 of the prism 41, and the third reflective surface S10 may be a portion of the second side surface 414 of the prism 41. The incident surface S7, the second reflective surface S9, and the exit surface S11 may all be located on the same surface, and any two adjacent surfaces among the incident surface S7, the second reflective surface S9, and the exit surface S11 may at least partially overlap. Exemplarily, light can be transmitted into the prism 41 from the overlapping area of the incident surface S7 and the second reflective surface S9, and light can also be reflected from the overlapping area of the incident surface S7 and the second reflective surface S9. In other embodiments, the incident surface S7, the second reflection surface S9 and the exit surface S11 may not be coplanar, and two adjacent surfaces among the incident surface S7, the second reflection surface S9 and the exit surface S11 may not overlap, which is not specifically limited in this application.

For example, light emitted from the second lens 3 may be reflected and folded three times within the prism 41 before reaching the image sensor 51. After passing through the third lens L3, the light from the second lens 3 may pass through the incident surface S7 and enter the prism 41. At least a portion of the light that passed through the incident surface S7 is reflected at the first reflection surface S8, undergoing a first reflection. At least a portion of the light reflected from the first reflection surface S8 is reflected at the second reflection surface S9, undergoing a second reflection. Finally, at least a portion of the light reflected from the second reflection surface S9 is reflected at the third reflection surface S10, undergoing a third reflection. This allows at least a portion of the light to pass through the exit surface S11 and exit the prism 41 to the image sensor 51.

For example, the cross-section of the prism 41 can be roughly an isosceles trapezoid. The first reflecting surface S8 and the third reflecting surface S10 can be the two waists of the isosceles trapezoid. The angle between the incident surface S7 and the first reflecting surface S8 can be 33°, and the angle between the third reflecting surface S10 and the exit surface S11 can be 33°. In other embodiments, the prism 41 can be a triangular prism, a quadrilateral prism or other element capable of folding the light path, and the angle between the incident surface S7 of the prism 41 and the first reflecting surface S8 or the angle between the third reflecting surface S10 and the exit surface S11 can also be 30° or 45°, etc., which are not limited in this application.

Furthermore, the filter 52 may include an object-side surface S12 and an image-side surface S13. An imaging surface S14 is located on the image side of the first lens 2. This imaging surface S14 may be the surface on which an image is formed after light sequentially passes through the second lens 3 and each lens in the first lens 2. The image sensor 51 is located on the imaging surface S14.

For example, the first lens 2 and the second lens 3 can be located on the same side of the prism 41. When the camera module 100 switches from the telephoto state to the macro state, the second lens 3 can move along the optical axis toward the image side, while the first lens 2 remains stationary, so as to increase the distance between the first lens 2 and the second lens 3 and achieve focusing.

See Table 1a, which shows the radius of curvature, thickness, refractive index, and Abbe number of each lens and filter 52 in the camera module 100 of the first embodiment when operating at infinity. The Abbe number is also known as the dispersion coefficient. OBJ represents the object-side surface of the camera module 100.

Table 1a

Please refer to Table 1b, which shows the aspheric coefficients of each lens of the camera module 100 of the first embodiment.

Table 1b

Among them, symbols such as A ₄ , A ₆ , A ₈ , A ₁₀ , A ₁₂ , A ₁₄ , and A ₁₆ represent aspheric coefficients. It should be noted that the parameters in the table are expressed in scientific notation. For example, 1.365E-06 means 1.365×10 ^-6 . It should be noted that when symbols such as A ₄ , A ₆ , A ₈ , A ₁₀ , A ₁₂ , A ₁₄ , and A ₁₆ appear again in this application, unless otherwise explained, they have the same meaning as here and will not be repeated here.

In this embodiment, the object-side surfaces and image-side surfaces of the first lens L1 to the third lens L3 are all aspherical surfaces, which can be defined by, but not limited to, the following aspherical surface formula:

Where z(x,y) is the sag of the optical surface; k is the cone coefficient; c is the radius of curvature; r is the radius height in the direction of the optical axis; r ² =x ² +y ² ; α _i is the polynomial coefficient; _ri is the normalized radial coordinate, and A ₄ , A ₆ , A ₈ , A ₁₀ , A ₁₂ , A ₁₄ and A ₁₆ are aspheric coefficients.

Please refer to Table 1c, which shows the basic parameters of the camera module 100 shown in FIG37 when the object distance is infinite. f21 is the focal length of the first lens L1 in the second lens 3, and f22 is the focal length of the second lens L2 in the second lens 3.

Table 1c

It is understood that when the camera module 100 switches from a telephoto to a close-up, for example, to a macro distance of 68mm, the distance between the first lens 2 and the second lens 3 increases, and the focus stroke of the second lens 3 is 1.43mm. This short focus stroke provides good focusing effect, enabling excellent macro photography. In this embodiment, the EFL is 17.2mm, the Fno is 2.6, and the FOV is 25°, and the camera module 100 has the characteristics of a telephoto lens and a large aperture.

Second embodiment: Please refer to Figures 39 and 40. Figure 39 is a schematic diagram of the structure of the camera module 100 provided in the second embodiment of the present application in the long-range working state when the object distance is infinite. Figure 40 is a schematic diagram of the structure of the camera module 100 shown in Figure 39 in the close-range working state during macro shooting.

For example, the second lens element 3 may have positive optical power. The second lens element 3 may include a first lens element L1 and a second lens element L2, arranged sequentially from the object side to the image side. The first lens element L1 may have positive optical power and may include an object-side surface S1 and an image-side surface S2. The second lens element L2 may have negative optical power and may include an object-side surface S3 and an image-side surface S4.

For example, the first lens element 2 may have negative optical power, the second lens element may include a third lens element L3, the third lens element L3 may have negative optical power, and the third lens element L3 may include an object-side surface S5 and an image-side surface S6.

For example, the prism 41 may include an incident surface S7, a first reflective surface S8, a second reflective surface S9, a third reflective surface S10, a fourth reflective surface S15, a fifth reflective surface S16, and an exit surface S11. The first reflective surface S8 may be a portion of the first side surface 413 of the prism 41, the second reflective surface S9 and the fourth reflective surface S15 may be a portion of the first surface 411 of the prism 41, and the third reflective surface S10 may be a portion of the first side surface 413 of the prism 41. The fifth reflective surface S16 may be a portion of the second surface 412, and the fifth reflective surface S16 may be a portion of the second side surface 414 of the prism 41. The incident surface S7, the second reflective surface S9, the fourth reflective surface S15, and the exit surface S11 may all be located on one surface, and any two adjacent surfaces among the incident surface S7, the second reflective surface S9, the fourth reflective surface S15, and the exit surface S11 may at least partially overlap. For example, the incident surface S7 and the second reflective surface S9 may be coplanar, and the incident surface S7 and the second reflective surface S9 may partially overlap, so that light can be transmitted into the prism 41 from the overlapping area of the incident surface S7 and the second reflective surface S9, and light can also be reflected from the overlapping area of the incident surface S7 and the second reflective surface S9. In other embodiments, the incident surface S7, the second reflective surface S9, the fourth reflective surface S15, and the exit surface S11 may not be coplanar, and any two adjacent surfaces among the incident surface S7, the second reflective surface S9, and the exit surface S11 may not overlap, and this application is not limited to this.

For example, light emitted through the second lens 3 may be reflected and folded five times within the prism 41 before reaching the image sensor 51. After passing through the third lens L3, the light from the second lens 3 may pass through the exit surface S7 and enter the prism 41. At least a portion of the light that passed through the incident surface S7 is reflected at the first reflection surface S8, resulting in a first reflection. At least a portion of the light reflected from the first reflection surface S8 is reflected at the second reflection surface S9, resulting in a second reflection. At least a portion of the light reflected from the second reflection surface S9 is reflected at the third reflection surface S10, resulting in a third reflection. At least a portion of the light reflected from the third reflection surface S10 is reflected at the fourth reflection surface S15, resulting in a fourth reflection. Finally, at least a portion of the light reflected from the fourth reflection surface S15 is reflected at the fifth reflection surface S16, resulting in at least a portion of the light being emitted from the prism 41 through the exit surface S11 and reaching the image sensor 51.

For example, the cross-section of the prism 41 can be roughly an isosceles trapezoid. The first reflecting surface S8 and the fifth reflecting surface S16 can be the two waists of the isosceles trapezoid. The angle between the incident surface S7 and the first reflecting surface S8 can be 30°, and the angle between the fifth reflecting surface S16 and the exit surface S11 can be 30°. In other embodiments, the angle between the incident surface S7 and the first reflecting surface S8 of the prism 41 or the angle between the fifth reflecting surface S16 and the exit surface S11 can be 36° or 45°, etc., which are not limited in this application.

Furthermore, the filter 52 may include an object-side surface S12 and an image-side surface S13. An imaging surface S14 is located on the image side of the camera module 100. This surface is where light forms an image after passing through each lens in the second lens 3 and the first lens 2. The image sensor 51 is located on the imaging surface S14.

In this embodiment, the second lens 3 and the image sensor 51 are located on the same side of the prism 41. When the camera module 100 switches from the telephoto state to the macro state, the second lens 3 can move along the optical axis toward the object side of the camera module 100, and the first lens 2 remains stationary to achieve focusing.

See Table 2a, which shows the radius of curvature, thickness, refractive index, and Abbe number of each lens and filter 52 in the second embodiment of the camera module 100 when operating at infinity. The Abbe number is also known as the dispersion coefficient. OBJ represents the object-side surface of the camera module 100.

Table 2a

Please refer to Table 2b, which shows the aspheric coefficients of each lens of the camera module 100 of the second embodiment.

Table 2b

Here, symbols such as A ₄ , A ₆ , A ₈ , A ₁₀ , A ₁₂ , A ₁₄ and A ₁₆ represent aspheric coefficients.

In this embodiment, the object-side surfaces and image-side surfaces of the first lens L1 to the third lens L3 are all aspherical surfaces, which can be defined by, but not limited to, the following aspherical surface formula:

Where z(x,y) is the sag of the optical surface; k is the cone coefficient; c is the radius of curvature; r is the radius height in the direction of the optical axis; r ² =x ² +y ² ; α _i is the polynomial coefficient; _ri is the normalized radial coordinate, and A ₄ , A ₆ , A ₈ , A ₁₀ , A ₁₂ , A ₁₄ and A ₁₆ are aspheric coefficients.

Please refer to Table 2c, which shows the basic parameters of the camera module 100 shown in Figure 39 at infinity.

Table 2c

In this embodiment, when the camera module 100 switches from a telephoto lens to a close-up lens, for example, to a macro lens of 100mm, the distance between the first lens 2 and the second lens 3 increases, and the focus stroke of the second lens 3 is 1.63mm. This short focus stroke provides excellent focusing and enables excellent macro photography. In this embodiment, the EFL is 26mm, the Fno is 3.4, and the FOV is 17°, indicating that the camera module 100 has the characteristics of a telephoto lens and a large aperture.

The above descriptions, combined with the accompanying drawings, describe the camera module 100 and its optical parameters in some embodiments. The following descriptions will further describe the structure of the camera module 100 in other embodiments, combined with the accompanying drawings. It is understood that the design of the motor 1 illustrated above can be directly applied to the structural design of the motor 1 illustrated below, unless there is a conflict. Furthermore, most of the technical content that is identical to the motor 1 illustrated above will not be repeated below.

Fig. 41 is a schematic diagram of the structure of another embodiment of the camera module 100 shown in Fig. 3. Fig. 42 is a partial exploded view of the structure of the camera module 100 shown in Fig. 41 in one embodiment.

As shown in Figures 41 and 42, the motor 1 of the camera module 100 includes an anti-shake module 1b and a focus module 1c. In this embodiment, the anti-shake module 1b of the motor 1 may include a base 11, a third connecting member 133, a rolling member 134, an anti-shake drive mechanism 14, and an anti-shake bracket 16. The anti-shake drive mechanism 14 includes a first anti-shake coil 141, a first anti-shake magnetic member 142, a second anti-shake coil 143, and a second anti-shake magnetic member 144. The first anti-shake coil 141 and the first anti-shake magnetic member 142 are arranged in correspondence to form a drive mechanism, and the second anti-shake coil 143 and the second anti-shake magnetic member 144 are arranged in correspondence to form another drive mechanism.

FIG43 is an enlarged schematic diagram of the structure of the base 11 shown in FIG42 in one embodiment.

As shown in Figure 43, the base 11 includes a plurality of first rolling grooves 114. For example, there can be three first rolling grooves 114. For example, the three first rolling grooves 114 can be located at a first corner 1111, a second corner 1112, and a third corner 1113 of the base 11, respectively. The three first grooves 113 of the base 11 can extend parallel to the first direction X or the second direction Y. Thus, the first grooves 113 can extend along the X-Y plane.

FIG44 is a partial structural assembly diagram 1 of the motor 1 shown in FIG42 in one embodiment.

As shown in Figure 44, the rolling element 134 can be movably connected to the base 11. For example, the plurality of rolling elements 134 can be located in the plurality of first rolling grooves 114 of the base 11 in a one-to-one correspondence.

It can be understood that the rolling element 134 can be a ball structure, so that the rolling element 134 can move in any direction along the X-Y plane relative to the base 11 in the first rolling groove 114.

Illustratively, the first anti-shake coil 141 , the second anti-shake coil 143 , the first anti-shake sensor 145 , and the second anti-shake sensor 146 may all be fixedly connected to the base 11 and electrically connected to the base 11 .

Figure 45 is a schematic diagram of the structure of the anti-shake bracket 16 shown in Figure 42 in one embodiment. Figure 46 is a schematic diagram of the structure of the anti-shake bracket 16 shown in Figure 45 at another angle.

45 and 46 , illustratively, the bottom plate 161 of the anti-shake bracket 16 is connected to the side plate 162 of the anti-shake bracket 16 . The side plate 162 is disposed around the mounting hole 16 a of the anti-shake bracket 16 .

For example, the anti-shake bracket 16 includes a plurality of second rolling grooves 165 , and the number of the second rolling grooves 165 may be three. For example, the cross-sections of the three fourth grooves 164 of the anti-shake bracket 16 may be substantially circular.

Figure 47 is a partial structural assembly diagram of the camera module 100 shown in Figure 41 in one embodiment. Figure 48 is a partial cross-sectional schematic diagram of the camera module 100 shown in Figure 47 at line J-J in one embodiment.

As shown in Figures 47 and 48, the anti-shake bracket 16 can be movably connected to the base 11. For example, the three second rolling grooves 165 of the anti-shake bracket 16 correspond one-to-one to the three first rolling grooves 114 of the base 11. The rolling elements 134 installed in the first rolling grooves 114 can at least partially fit into the second rolling grooves 165. In this case, the anti-shake bracket 16 is connected to the base 11 via the multiple rolling elements 134.

For example, the rolling element 134 can roll within the first rolling groove 114 in the first direction X and/or the second direction Y, and the second rolling groove 165 of the anti-shake bracket 16 can limit the rolling element 134. It is understood that the anti-shake bracket 16 and the rolling element 134 can move together in any direction in the X-Y plane relative to the base 11, making the relative movement between the anti-shake bracket 16 and the base 11 more controllable. In other embodiments, by changing the shape and size of the first rolling groove 114 and the second rolling groove 165, the first rolling groove 114 can limit the rolling element 134, allowing the rolling element 134 to move within the first groove 113 in the first direction X and/or the second direction Y.

Figure 49 is a partial cross-sectional view of an embodiment of the camera module 100 shown in Figure 47 at line K-K. Figure 50 is a partial cross-sectional view of an embodiment of the camera module 100 shown in Figure 47 at line L-L.

As shown in Figures 49 and 50 , for example, the first anti-shake coil 141 and the first anti-shake magnetic member 142 are correspondingly provided to drive the anti-shake bracket 16 to move relative to the base 11 along the first direction X. The first anti-shake sensor 145 can be used to detect position changes of the anti-shake bracket 16 in the first direction X.

Illustratively, the second anti-shake coil 143 is correspondingly provided with the second anti-shake magnetic member 144 to drive the anti-shake bracket 16 to move relative to the base 11 along the second direction Y. The second anti-shake sensor 146 can be used to detect the position change of the anti-shake bracket 16 in the second direction Y.

For example, the first lens 2 can be fixedly connected to the anti-shake bracket 16. The anti-shake bracket 16 can drive the first lens 2 to move in any direction on the X-Y plane.

For example, the focus bracket 21 can be movably connected to the anti-shake bracket 16. The second lens 3 can be fixedly connected to the focus bracket 21. The anti-shake bracket 16 can drive the focus bracket 21 and the second lens 3 to move in any direction on the X-Y plane.

It can be understood that under the action of the first anti-shake coil 141, the first anti-shake magnetic part 142, the second anti-shake coil 143 and the second anti-shake magnetic part 144, the anti-shake bracket 16 can drive the first lens 2 and the second lens 3 to move in any direction on the X-Y plane relative to the base 11, thereby offsetting the shaking stroke generated by the first lens 2 and the second lens 3 in the X-Y plane, realizing optical image stabilization of the camera module 100, and improving the imaging quality of the camera module 100.

50 , illustratively, the focus coil 221 is disposed facing the focus magnetic member 222 to drive the focus bracket 21 to move relative to the anti-shake bracket 16 along the third direction Z. The focus sensor 24 can be used to detect position changes of the focus bracket 21 in the third direction Z.

It is understandable that the focusing coil 221 and the focusing magnetic member 222 can drive the focusing bracket 21 to move along the third direction Z, thereby driving the second lens 3 to move along the third direction Z, thereby realizing automatic focusing of the camera module 100.

It can be understood that compared with the solution in which the anti-shake bracket 16 is movably connected to the base 11 through the second connecting member 132, the guide bracket 15 and the first connecting member 131, the solution in which the anti-shake bracket 16 is movably connected to the base 11 through the rolling member 134 has a simpler structure, thereby realizing the miniaturization of the motor 1 and the camera module 100.

FIG51 is a second partial structural assembly diagram of the motor 1 shown in FIG42 in one embodiment.

As shown in FIG51 , the pressing member 17 can be fixedly connected to the side of the anti-shake bracket 16 facing away from the base 11. For example, the pressing member 17 can be fixed to the side plate 162. The pressing member 17 can limit the movement of the focus bracket 21 in the third direction Z to prevent the focus bracket 21 from separating from the anti-shake bracket 16.

Referring to FIG. 41 , for example, housing 18 can be configured to match the shape of base 11 and can be positioned over base 11. Housing 18 can be fixedly connected to base 11 by gluing or other methods. Housing 18 can be assembled with base 11 to encapsulate and protect the internal structure of motor 1.

It is understood that the positional relationship, connection relationship, and motion relationship between the motor 1 and the first lens 2, the second lens 3, the prism assembly 4, and the image sensor assembly 5 can all be referred to in the positional relationship, connection relationship, and motion relationship between the motor 1 and the first lens 2, the second lens 3, the prism assembly 4, and the image sensor assembly 5. The details are not repeated here.

It is understandable that, compared to the base 11, the motor circuit board 12, the first connecting member 131, the second connecting member 132, the third connecting member 133, the anti-shake drive mechanism 14, the guide bracket 15 and the anti-shake bracket 16. The anti-shake module 1b includes the base 11, the third connecting member 133, the rolling member 134, the anti-shake drive mechanism 14 and the anti-shake bracket 16. The structure of the anti-shake module 1b is simpler, the volume of the motor 1 is smaller, and the miniaturization setting of the camera module 100 can be further realized.

Fig. 52 is a schematic diagram of the structure of another embodiment of the camera module 100 shown in Fig. 3. Fig. 53 is a schematic diagram of a partial decomposition of the camera module 100 shown in Fig. 52 in one embodiment.

As shown in Figures 52 and 53, the camera module 100 includes a motor 1, a first lens 2, a second lens 3, a prism assembly 4, and an image sensor assembly 5. It is understood that the camera module 100 may also include fewer or more structures. For example, the camera module 100 may also include a variable aperture (not shown in the figures).

FIG54 is a partially exploded schematic diagram of the prism assembly 4 shown in FIG53 in one embodiment.

As shown in FIG. 54 , illustratively, the cross-section of the prism 41 may be substantially a parallelogram.

For example, the first surface 411 of the prism 41 and the second surface 412 of the prism 41 may be substantially parallel. The first side surface 413 of the prism 41 and the second side surface 414 of the prism 41 may be substantially parallel.

For example, the incident surface S7 of the prism 41 may be located on the first surface 411 of the prism 41, with a portion of the first surface 411 forming the incident surface S7. The exit surface S11 of the prism 41 may be located on the second surface 412 of the prism 41, with a portion of the second surface 412 forming the exit surface S11. In this case, the incident surface S7 and the exit surface S11 are located on different sides of the prism assembly 4.

FIG55 is an enlarged schematic diagram of the structure of the prism bracket 42 shown in FIG54 at another angle.

As shown in FIG. 54 and FIG. 55 , illustratively, the second mounting portion 422 of the prism bracket 42 may be protruded from the first mounting portion 421 .

For example, the space enclosed by the first mounting portion 421 and the second mounting portion 422 may constitute the accommodating space 423 of the prism holder 42. The first supporting surface 4231 and the second supporting surface 4232 of the accommodating space may be arranged at an angle.

Figure 56 is a partial cross-sectional schematic diagram 1 of an embodiment of the camera module 100 shown in Figure 52 at the M-M line.

As shown in FIG56 , the prism 41 can be fixedly connected to the prism bracket 42 . At this time, the prism 41 is located in the accommodating space 423 of the prism bracket 42 .

For example, the second surface 412 of the prism 41 may be substantially parallel to the first supporting surface 4231 of the accommodating space 423, and the second surface 412 of the prism 41 may be spaced apart from the second supporting surface 4232 of the accommodating space 423. The first side surface 413 of the prism 41 may be substantially parallel to the second supporting surface 4232 of the accommodating space 423, and the first side surface 413 of the prism 41 may be spaced apart from the second supporting surface 4232 of the accommodating space 423.

Exemplarily, the prism assembly 4 may be fixedly connected to the motor 1. Exemplarily, a portion of the prism assembly 4 may extend into the avoidance space of the motor 1.

For example, a portion of the base 11 of the motor 1 may be fixedly connected to the second mounting portion 422 of the prism bracket 42 . The first mounting portion 421 of the prism bracket 42 of the prism assembly 4 may be fixedly connected to a side of the base 11 away from the anti-shake bracket 16 .

Exemplarily, the emission surface S11 of the prism 41 is located outside the motor 1 , and is located on the side of the prism 41 facing away from the motor 1 .

Figure 57 is a partial cross-sectional schematic diagram of an embodiment of the image sensor assembly of Figure 53 at line N-N.

As shown in FIG. 57 , illustratively, the image sensor 51 may be fixed to a side of the third board portion 543 of the circuit board 54 that faces the first board portion 541 .

For example, the filter holder 53 may be fixed to the third board portion 543 of the circuit board 54 . The filter holder 53 and the image sensor 51 may be located on the same side of the third board portion 543 of the circuit board 54 .

Illustratively, the optical filter 52 is fixedly connected to the optical filter holder 53. The optical filter 52 can be located within the through hole 531 of the optical filter holder 53. The optical filter 52 is also disposed opposite the image sensor 51. The optical filter 52 can be used to filter infrared light or blue light from light before entering the image sensor 51, thereby ensuring that the image sensor 51 has better imaging quality.

Figure 58 is a second partial cross-sectional schematic diagram of an embodiment of the camera module 100 shown in Figure 52 at the M-M line.

As shown in FIG. 58 , the prism assembly 4 is fixed to the first plate portion 541 of the circuit board 54 , and a portion thereof is located between the first plate portion 541 and the third plate portion 543 .

For example, the first mounting portion 421 of the prism holder 42 is fixed to the first plate portion 541. The exit surface S11 of the prism 41 is disposed opposite the optical filter 52. Thus, light is refracted at least four times within the prism 41 before exiting and being filtered by the optical filter 52 before reaching the image sensor 51.

The image sensor assembly 5 can be fixedly connected to the prism assembly 4. For example, a portion of the filter holder 53 of the image sensor assembly 5 is fixedly connected to the prism holder 42 of the prism assembly 4. A portion of the circuit board 54 is fixedly connected to the prism holder 42 of the prism assembly 4, and a portion is fixedly connected to the base 11 of the motor 1.

For example, the filter 52 may be disposed opposite to and cover the exit surface S11 of the prism 41 , so that light can reach the image sensor 51 only after being filtered by the filter 52 .

For example, light enters the interior of the camera module 100 from the second lens 3, then passes through the first lens 2 and the incident surface S7 of the prism 41 in sequence before entering the interior of the prism 41. After entering the prism 41, the light can be reflected in sequence on a portion of the first side surface 413, a portion of the first surface 411, a portion of the second surface 412, and a portion of the second side surface 414 of the prism 41. After at least four reflections, the light can be emitted from the prism 41 through the exit surface S11 of the prism 41, and after passing through the filter 52, it reaches the image sensor 51. The image sensor 51 converts the image information carried by the light into an electrical signal, thereby realizing imaging.

It is understood that after entering the prism 41, the light can be refracted at least four times inside the prism 41. In this way, the optical path of the camera module 100 is relatively large, which enables shooting in a telephoto state, thereby improving the imaging quality of the camera module 100 in the telephoto state.

It can be understood that, compared with the scheme of setting a boat-shaped prism 41, the scheme of setting a parallelogram prism 41 can make the light be refracted at least four times in the prism 41, can have a longer total optical path length, and can have higher imaging quality in the telephoto state.

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the scope of protection of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

It should be noted that all the above drawings are illustrative illustrations of this application and do not represent the actual size of the product. The dimensional ratio relationship between the components in the drawings does not serve as a limitation on the actual product of this application. The above are only some of the implementation methods and implementation methods of this application. The scope of protection of this application is not limited to this. Any person skilled in the art who is familiar with the technical scope disclosed in this application can easily think of changes or replacements, which should be covered within the scope of protection of this application. Therefore, the scope of protection of this application shall be based on the scope of protection of the claims.

Claims (24)

A camera module (100), characterized in that it comprises a motor (1), a first lens (2), a second lens (3), a prism assembly (4) and an image sensor assembly (5), wherein the first lens (2) and the second lens (3) are mounted on the motor (1); The prism assembly (4) comprises an incident surface (S7) and an exit surface (S11), the incident surface (S7) of the prism assembly (4) is arranged facing the first lens (2), and the exit surface (S11) of the prism (41) is arranged facing the image sensor assembly (5); After light enters the camera module (100), it passes through the second lens (3), the first lens (2), and the incident surface (S7) of the prism assembly (4) in sequence before entering the prism assembly (4); after the light is reflected multiple times inside the prism assembly (4), it is emitted from the exit surface (S11) of the prism assembly (4) and is imaged on the image sensor assembly (5); The motor (1) comprises a base (11), an anti-shake driving mechanism (14), an anti-shake bracket (16), a focus bracket (21) and a focus driving mechanism (22); the anti-shake bracket (16) is movably connected to the base (11), and the focus bracket (21) is movably connected to the anti-shake bracket (16); The first lens (2) is fixed to the anti-shake bracket (16), the second lens (3) is fixed to the focus bracket (21), the anti-shake driving mechanism (14) is used to drive the anti-shake bracket (16) to drive the first lens (2), the focus bracket (21) and the second lens (3) to move relative to the base (11) along a first direction and/or a second direction, and the focus driving mechanism (22) is used to drive the focus bracket (21) to drive the second lens (3) to move relative to the anti-shake bracket (16) along a third direction, so that the second lens (3) is close to or away from the first lens (2), wherein the first direction, the second direction and the third direction are different from each other. The camera module (100) according to claim 1 is characterized in that, during the focusing process of the camera module (100) from a distant view to a close view, the first lens (2) remains stationary in the third direction, the second lens (3) moves away from the first lens (2) along the third direction, and the distance between the first lens (2) and the second lens (3) increases; During the focusing process of the camera module (100) from a near shot to a far shot, the first lens (2) remains stationary in the third direction, the second lens (3) approaches the first lens (2) along the third direction, and the distance between the first lens (2) and the second lens (3) decreases. The camera module (100) according to claim 1 or 2, characterized in that the anti-shake bracket (16) includes a mounting hole (16a), the focus bracket (21) includes a mounting space (21a), and the mounting hole (16a) and the mounting space (21a) are arranged relative to each other; The first lens (2) is fixed in the mounting hole (16a) of the anti-shake bracket (16), and the second lens (3) is fixed in the mounting space (21a) of the focusing bracket (21). The camera module (100) according to claim 3, characterized in that a fixing block (161a) is protruded from the hole wall of the mounting hole (16a) of the anti-shake bracket (16); The first lens (2) is fixed to the fixing block (161a), and is at least partially located on a side of the fixing block (161a) facing the base (11). The camera module (100) according to claim 4 is characterized in that the mounting hole (16a) forms a first opening (162a) on the anti-shake bracket (16), and the first lens (2) does not extend out of the first opening (162a). The camera module (100) according to any one of claims 1 to 5, characterized in that the first lens (2) has a negative optical focal length, and the second lens (3) has a positive optical focal length. The camera module (100) according to any one of claims 1 to 6 is characterized in that the second lens (3) includes a first lens (L1) and a second lens (L2), the first lens (2) includes a third lens (L3), the first lens (L1), the second lens (L2) and the third lens (L3) are arranged in sequence, the first lens (L1) has a positive optical focal length, the second lens (L2) has a negative optical focal length, and the third lens (L3) has a negative optical focal length. The camera module (100) according to any one of claims 1 to 7 is characterized in that the focal length f1 of the first lens (2) of the camera module (100) and the effective focal length EFL of the camera module (100) satisfy: f1/EFL＞-1. The camera module (100) according to any one of claims 1 to 8, characterized in that the second The focal length f2 of the lens (3) and the effective focal length EFL of the camera module (100) satisfy: f2/EFL≤0.9. The camera module (100) according to any one of claims 1 to 9 is characterized in that the second lens (3) includes at least one lens with an Abbe number less than 40. The camera module (100) according to any one of claims 1 to 10 is characterized in that the camera module (100) satisfies: FOV < 50°, wherein FOV is the field of view angle of the camera module (100) when the object distance is infinite. The camera module (100) according to any one of claims 1 to 11 is characterized in that the camera module (100) satisfies: Fno＜3.6, where Fno is the aperture number of the camera module (100). The camera module (100) according to any one of claims 1 to 12 is characterized in that the motor (1) further includes a guide bracket (15), a plurality of first connecting members (131) and a plurality of second connecting members (132), the guide bracket (15) being located between the anti-shake bracket (16) and the base (11), the guide bracket (15) being connected to the base (11) through the plurality of first connecting members (131), and being connected to the anti-shake bracket (16) through the plurality of second connecting members (132), so that the relative movement direction of the anti-shake bracket (16) and the guide bracket (15) is different from the relative movement direction of the guide bracket (15) and the base (11). The camera module (100) according to claim 13, characterized in that the base (11) includes a plurality of first grooves (113), the guide bracket (15) includes a plurality of second grooves (1513) and a plurality of third grooves (1514), and the anti-shake bracket (16) includes a plurality of fourth grooves (164); The plurality of first connecting members (131) are arranged in one-to-one correspondence with the plurality of first grooves (113) and the plurality of second grooves (1513); at least a portion of the first connecting member (131) is located in the first groove (113) of the base (11), and at least a portion of the first connecting member (131) is located in the second groove (1513) of the guide bracket (15); The plurality of second connecting members (132) are arranged in one-to-one correspondence with the plurality of third grooves (1514) and the plurality of fourth grooves (164); at least a portion of the second connecting member (132) is located in the third groove (1514) of the guide bracket (15), and at least a portion of the second connecting member (132) is located in the fourth groove (164) of the anti-shake bracket (16). The camera module (100) according to any one of claims 1 to 12, characterized in that the anti-shake bracket (16) is movably connected to the base (11) via a rolling member (134). The camera module (100) according to claim 15, characterized in that the base (11) includes a first rolling groove (114), and the anti-shake bracket (16) includes a second rolling groove (165); At least a portion of the rolling element (134) is located in the first rolling groove (114) of the base (11), and at least a portion of the rolling element (134) is located in the second rolling groove (165) of the anti-shake bracket (16). The camera module (100) according to any one of claims 1 to 16, characterized in that the anti-shake drive mechanism (14) includes a first anti-shake coil (141), a first anti-shake magnetic component (142), a second anti-shake coil (143) and a second anti-shake magnetic component (144), the first anti-shake coil (141) and the second anti-shake coil (143) are fixed to the base (11), and the first anti-shake magnetic component (142) and the second anti-shake magnetic component (144) are fixed to the anti-shake bracket (16); The first anti-shake coil (141) is arranged facing the first anti-shake magnetic part (142) to drive the anti-shake bracket (16) to move along the first direction relative to the base (11), and the second anti-shake coil (143) is arranged facing the second anti-shake magnetic part (144) to drive the anti-shake bracket (16) to move along the second direction relative to the base (11). The camera module (100) according to claim 17, characterized in that the anti-shake drive mechanism (14) includes a first anti-shake sensor (145), the first anti-shake sensor (145) being fixed to the base (11) and located on the inner side of the first anti-shake coil (141), for detecting a position change of the anti-shake bracket (16) in the first direction; The anti-shake driving mechanism (14) includes a second anti-shake sensor (146), which is fixed to the base (11) and located on the inner side of the second anti-shake coil (143) to detect the position change of the anti-shake bracket (16) in the second direction. The camera module (100) according to any one of claims 1 to 18, characterized in that the motor (1) further comprises a focus circuit board (23), and the focus circuit board (23) is fixed to the anti-shake bracket (16); The focus drive mechanism (22) comprises a focus coil (221) and a focus magnetic component (222), wherein the focus coil (221) is fixed to the focus circuit board (23), and the focus magnetic component (222) is fixed to the focus bracket (21), and the focus coil (221) is arranged facing the focus magnetic component (222) to drive the focus bracket (21) to move relative to the anti-shake bracket (16) along the third direction. The camera module (100) according to any one of claims 1 to 19, characterized in that the incident surface (S7) and the exit surface (S11) are located on the same side of the prism assembly (4); Alternatively, the incident surface (S7) and the exit surface (S11) are located on different sides of the prism assembly (4). The camera module (100) according to claim 20, characterized in that the prism assembly (4) comprises a prism (41) and a prism bracket (42), and the prism (41) is mounted on the prism bracket (42); The prism (41) comprises a first surface (411), a second surface (412), a first side surface (413), and a second side surface (414); the first side surface (413) and the second side surface (414) connect the first surface (411) and the second surface (412); the first surface (411) and the second surface (412) are arranged in back-to-back relationship; The prism assembly (4) further comprises a light shielding sheet (43), wherein the light shielding sheet (43) is fixed to the first surface (411) of the prism (41), and the light shielding sheet (43) separates the first surface (411) to form the incident surface (S7) and the exit surface (S11). The camera module (100) according to claim 21, characterized in that the image sensor assembly (5) includes an image sensor (51) and a circuit board (54), the circuit board (54) includes a first board portion (541), a second board portion (542) and a third board portion (543), the second board portion (542) connects the first board portion (541) and the third board portion (543), and the first board portion (541) and the third board portion (543) are opposite to each other and spaced apart; The image sensor (51) is fixed to a side of the first board portion (541) of the circuit board (54) facing the third board portion (543), and is electrically connected to the circuit board (54); The prism assembly (4) is fixed to the third plate portion (543) of the circuit board (54), and is at least partially located between the first plate portion (541) and the third plate portion (543). The camera module (100) according to claim 20, characterized in that the prism assembly (4) comprises a prism (41) and a prism bracket (42), and the prism (41) is mounted on the prism bracket (42); The prism (41) comprises a first surface (411), a second surface (412), a first side surface (413), and a second side surface (414); the first side surface (413) and the second side surface (414) connect the first surface (411) and the second surface (412); the first surface (411) and the second surface (412) are arranged in a back-to-back manner; and the first side surface (413) and the second side surface (414) are arranged in a back-to-back manner. A portion of the first surface (411) forms the incident surface (S7), and a portion of the second surface (412) forms the exit surface (S11). An electronic device (1000), characterized in that it comprises a housing (200) and a camera module (100) according to any one of claims 1 to 23, wherein the camera module (100) is arranged in the housing (200).