WO2018035943A1 - Periscope camera module - Google Patents

Abstract

Disclosed is a periscope camera module, comprising a photosensitive chip, a lens mechanism, a light turning mechanism, a processor chip, a first circuit board, and a second circuit board. The light turning mechanism is located on a light-entrance side of the lens mechanism. The first circuit board is located on a light-exit side of the lens mechanism. The photosensitive chip is mounted on the first circuit board. The processor chip is mounted on the second circuit board. The second circuit board is connected to the first circuit board. The second circuit board comprises a first portion and a second portion, the first portion being adhered to a side wall of the lens mechanism, the second portion being parallel to a bottom surface of the lens mechanism and extending outward. The processor chip is mounted on the first portion of the second circuit board. The present invention can effectively reduce an area occupied by the whole module and facilitate mounting of the module in a smaller space to meet high requirements of a mobile terminal on the mounting space. Therefore, the present invention is widely applicable while the photographing quality will not be affected.

Description

Periscope camera module Technical field

The present invention relates to the field of imaging, and in particular to a periscope camera module.

Background technique

As the camera technology matures, a periscope lens (also known as an "inner zoom" lens) is produced. The optical zoom of the periscope lens is done inside the body, so the filter can be easily installed without the need to install additional components such as the lens barrel.

At present, the periscope lens is not only applied to professional camera equipment, but also further applied to mobile terminal equipment. Since the inside of the periscope lens refractions the incident light one or more times, thereby prolonging the optical path length of the light traveling inside the mobile terminal, solving the problem that the total optical length of the camera in the mobile terminal is limited by the size of the mobile terminal. Helps to take higher quality images.

Since the smart terminal has been moving toward the thin and light direction, the installation space in the terminal is very limited. Therefore, it has been the focus of research and development on how to reduce the size of the periscope camera module without affecting the quality of the shooting.

1 is a schematic structural view of a periscope camera module in a conventional art. As shown in FIG. 1, the lens mechanism 1 is connected to a wiring board 2 on which a processing chip 3 and a connector 4 are disposed. The lens mechanism 1 includes an optical lens for collecting an optical signal, a photosensitive chip (not shown) converts the optical signal into an electrical signal, and the processing chip 3 is used for driving the optical lens to complete the focusing operation and connecting. The device 4 is used to connect the circuit board 2 to the main board of the mobile terminal.

In the structure shown in FIG. 1, the processing chip 3 and the connector 4 are both mounted on the circuit board 2, thereby causing the circuit board 2 to occupy a large mounting area, thereby causing the periscope camera module to be in the mobile terminal. The installation takes up more valuable installation space.

In view of the problem that the periscope camera module occupies a large installation space in the related art, an effective solution has not been proposed yet.

Summary of the invention

Aiming at the problem that the periscope camera module occupies a large installation space in the related art, the present invention provides a periscope camera module, which can reduce the requirement of the module for the installation space without affecting the shooting quality.

According to the present invention, a periscope camera module is provided.

The periscope camera module according to the present invention comprises a photosensitive chip, a lens mechanism, a light steering mechanism, a processing chip, a first circuit board and a second circuit board, wherein the light steering mechanism is located on the light incident side of the lens mechanism, the first line The board is located on the light exit side of the lens mechanism, the photosensitive chip is mounted on the first circuit board, the processing chip is mounted on the second circuit board, and the second circuit board is connected to the first circuit board, wherein the second circuit board includes the first part and the first In two parts, the first part is attached to the side wall of the lens mechanism, and the second part is parallel to the bottom surface of the lens mechanism and extends outward, wherein the processing chip is mounted on the first part of the second circuit board.

The periscope camera module according to the present invention may further include:

The third circuit board is connected to the light steering mechanism, and the third circuit board is electrically connected to the first portion of the second circuit board.

Wherein the first portion of the second circuit board has a first connector, the third circuit board has a second connector, one of the first connector and the second connector has a plug, and the other has a socket, and the plug and the socket are coupled .

Further, a first portion of the second circuit board extends from a sidewall of the lens mechanism to a sidewall of the light steering mechanism, and the third circuit board is mated with a portion of the first portion of the second circuit board that extends to the sidewall of the light steering mechanism.

In addition, the periscope camera module according to the present invention may further include a fourth circuit board extending to the side wall of the light steering mechanism, the first portion of the second circuit board having the first connector, the third circuit board There is a second connector, the fourth circuit board has a third connector and a fourth connector, wherein one of the first connector and the third connector has a plug, the other has a socket, the first connector and the third The connector is mated with a connection; and one of the second connector and the fourth connector has a plug and the other has a socket, and the second connector and the fourth connector are matedly coupled at a side wall of the light steering mechanism.

Wherein, the above-mentioned mating connection may include: snapping, plugging, and welding.

Optionally, the socket is a gold finger slot, and the plug is a gold finger; or the socket is a thimble hole and the plug is a thimble.

In addition, the third circuit board may be a flexible circuit board, a hard circuit board, a hard and soft bonding circuit board, or a ceramic substrate.

Optionally, the fourth circuit board may be a flexible circuit board, a hard circuit board, a hard and soft bonding circuit board, or a ceramic substrate.

Further, the photosensitive chip is perpendicular to the optical axis of the lens mechanism, and the first portion of the first wiring board is perpendicular to the second wiring board.

In addition, a motherboard connector may be mounted on the second portion of the second circuit board, and the motherboard connector is used to connect the motherboard of the mobile terminal.

In addition, optionally, the first circuit board and the second circuit board may be a flexible circuit board, a hard circuit board, a hard and soft bonding circuit board, or a ceramic substrate.

The invention can achieve the following technical effects:

(1) The present invention attaches the mounting position of the processing chip to the side wall of the lens mechanism, thereby effectively reducing the area occupied by the module as a whole, and facilitating installation in a smaller space to satisfy the installation of the mobile terminal. The high requirements of the space have a wide range of application; in addition, since the invention changes the mounting position of the processing chip, it does not affect the shooting quality;

(2) The invention connects the optical steering mechanism and the circuit board to the side wall of the lens mechanism, thereby avoiding connecting the connecting wire or the circuit board led out by the optical steering mechanism to the main board, thereby reducing the installation space of the optical steering mechanism. And thereby further reducing the installation space required for the module as a whole; not only that, since the light steering mechanism does not need to be separately connected to the motherboard, the number of sockets on the motherboard can also be reduced; in addition, the processing chip can control the optical lens in the lens mechanism The focus is completed, and the adjustment inside the light steering mechanism is controlled at the same time, so that one chip can realize two kinds of control, thereby reducing the number of chips, making the whole module structure more compact and reducing the cost;

(3) by extending the circuit board to the side wall of the light steering mechanism and electrically connecting to the light steering mechanism, or by connecting the third circuit board of the light steering mechanism to the second circuit board of the lens mechanism through the fourth circuit board, The difficulty of connecting the light steering mechanism to the circuit board; by attaching the connector of the light steering mechanism to the side wall of the light steering mechanism, the device connection and arrangement inside the module can be made more compact; in addition, due to the motherboard of the mobile terminal There is no need to specifically provide a connection between the connection port and the optical steering mechanism, so the present invention can also reduce the space occupied by the connection port on the mobile terminal main board.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

1 is a schematic structural view of a periscope camera module in a conventional technology;

2 is a schematic structural view of a conventional arrangement of a light steering mechanism and a lens mechanism;

3 is a top plan view of a periscope camera module in accordance with one embodiment of the present invention;

4 is a side view of the periscope camera module of the embodiment shown in FIG. 3;

FIG. 5 is a top plan view of a periscope camera module according to another embodiment of the present invention; FIG.

FIG. 6a is a top plan view of a periscope camera module according to still another embodiment of the present invention; FIG.

6b is a top plan view of a periscope camera module according to still another embodiment of the present invention;

7 is a top plan view of a periscope camera module according to still another embodiment of the present invention;

FIG. 8 is a top plan view of a periscope camera module according to still another embodiment of the present invention; FIG.

FIG. 9 is a structural diagram of a periscope camera module after being packaged according to an embodiment of the present invention; FIG.

Figure 10 is an internal structural view of the periscope camera module shown in Figure 9;

FIG. 11 is a schematic diagram of the periscope camera module shown in FIG. 9 after being installed in a mobile terminal.

detailed description

The description of this illustrative embodiment should be combined with the corresponding drawings, which are incorporated as part of the specification. In the drawings, the shape or thickness of the embodiments may be expanded and simplified or conveniently indicated. Further, portions of the various structures in the drawings will be described in terms of separate descriptions, and it is noted that elements not shown or not illustrated by the drawings are known to those of ordinary skill in the art.

In the description of the embodiments herein, any reference to the directions and orientations is for convenience of description and is not to be construed as limiting the scope of the invention. Related terms such as "lower", "higher", "horizontal", "vertical", "above", "below", "upper", "lower", "top" and "bottom" and Derivatives thereof (such as "horizontally", "downwardly", "upwardly", and the like, are to be interpreted as the orientations described in the description or illustrated in the drawings. These related terms are only for convenience of description, not It should be considered as an explanation of the instrumentation or a specific operation in a specific orientation. Terms such as "attached", "fixed to", "connected" and "connected to each other" refer to a relationship in which the structure is directly or indirectly inserted through the structure, fixed. Or attached to another structure, unless explicitly stated, the structure includes movable, or stationary, or associated. Further, the features and advantages of the invention are described by reference to the preferred embodiments. Accordingly, the preferred embodiments illustrate combinations of possible non-limiting features that may exist independently or in combination, and the invention is not particularly limited to the preferred embodiments. The scope of the invention is defined by the claims.

According to an embodiment of the invention, a periscope camera module is provided.

As shown in FIG. 3, the periscope camera module according to an embodiment of the present invention includes a lens mechanism 10, a photosensitive chip 20, a first circuit board 130, a processing chip 30, a second circuit board 40, and data. The wire 50 and the connector 60 (the connector 60 is used to connect the motherboard, may be referred to as a motherboard connector). The lens mechanism 10 includes an optical lens and a driving component such as a motor. The processing chip 30 can be used to control a driving component such as a motor in the lens mechanism 10 to drive the optical lens to complete the focusing.

As shown in FIG. 3, the first circuit board 130 is mounted on the light exiting side of the lens mechanism 10, and the photosensitive chip 20 is located at the exiting optical path of the lens mechanism 10 and perpendicular to the optical axis of the lens mechanism 10, the first circuit board 130 and the second circuit. The board 40 is electrically connected, and the first circuit board 130 and the second circuit board 40 pass through the data line 50 (or the first circuit board 130 and the second circuit board 40 may be electrically connected in other manners).

The second wiring board 40 has a vertically extending portion 41 (shown as a hatched portion in FIG. 3) attached to the side wall of the lens mechanism 10 and a horizontally extending portion 42 extending in a direction perpendicular thereto, and the processing chip 30 is disposed at the vertical extension. Part 41.

For the lens mechanism 10, one side wall of the lens mechanism 10 is attached with a vertical extension portion 41 of the second circuit board 40. In addition, the light path of the lens mechanism 10 is mounted with the first circuit board 130, and the photosensitive chip 20 is mounted on the first circuit board 130. The first circuit board 130 and the vertically extending portion 41 of the second circuit board 40 are adjacent, and both may be vertical.

4 is a side view of the periscope camera module shown in FIG. 3, and the viewing angle is the incident light direction shown in FIG. 3. Referring to Figure 4, the lens 11 of the optical lens in the lens mechanism 10 can be seen. The vertically extending portion 41 of the second circuit board 40 is attached to the side wall of the lens mechanism 10, and the horizontally extending portion 42 of the second circuit board 40 extends vertically. The portion 41 is substantially vertical and the horizontally extending portion 42 extends outwardly in a direction parallel to the bottom surface of the lens mechanism 10.

As is apparent from FIGS. 3 and 4, the mounting position of the processing chip 30 on the second wiring board 40 is transferred to the side wall of the lens mechanism 1. Therefore, only the thickness of the processing chip 30 can be seen from the plan view shown in FIG. Compared with the case shown in FIG. 1, the processing chip 30 will no longer occupy the area of the horizontally extending portion 42 of the second wiring board 40, so that the area of the horizontally extending portion 42 can be reduced, thereby effectively reducing the periscope imaging mode. Group installation area.

Moreover, in one embodiment, not only the processing chip 30 may be disposed on the vertically extending portion 41 of the second wiring board 40, but also the remaining electronic devices (for example, may be IC devices) may be disposed together on the vertically extending portion. Therefore, the electronic device is prevented from occupying the area of the horizontally extending portion 42, and the mounting area of the periscope camera module is further reduced.

In addition, in the related art, since the periscope camera module needs to refract incident light to change its direction, the periscope camera module includes a light steering mechanism. As shown in FIG. 2, in the conventional technology, the light steering mechanism 5 is disposed adjacent to the lens mechanism 1. The light steering mechanism 5 is also provided with driving devices such as motors. In order to supply power to the driving devices, the optical steering mechanism 5 needs to pass through the circuit. The connector 7 on the board 6 is electrically connected to the main board. Therefore, in the conventional art, the mounting area is increased due to the presence of the wiring board 6.

In view of the above problems, the periscope camera module according to an embodiment of the present invention can reduce the mounting area of the light steering mechanism, thereby solving the problem shown in FIG. 2.

Referring to FIG. 5, the light steering mechanism 70 is disposed on the light incident side of the lens mechanism 10, specifically on the incident light path of the lens mechanism 10. After the light is incident on the light steering mechanism 70, the light steering mechanism 70 can be The light is refracted, and the refracted light is incident on the lens mechanism 10 along the broken line shown in FIG. As shown in FIG. 5, the light steering mechanism 70 can be electrically connected to the vertically extending portion 41 of the second wiring board 40 through the third wiring board 80. Wherein, the third circuit board 80 is electrically connected to a driving component such as a motor in the light steering mechanism 70, the electrical signal of the driving component is emitted by the processing chip 30, and is extended through the vertical extension portion 41 of the second wiring board 40, and the third line. The plate 80 is transmitted to the light steering mechanism 70. In this way, the optical steering mechanism is not required to be connected to the main board, and the number of interface devices on the main board is reduced. In addition, the processing chip 30 controls the components of the lens mechanism 10 to drive the optical lens to complete the focus, and can also control the optical steering mechanism. The motor movement is used to adjust the position and/or angle of the mirror/lens in the light steering mechanism, so that the same chip drives the two driving mechanisms, which makes the system structure more compact, reduces the number of chips, and helps to reduce costs. Compared to the structure shown in Figure 2, Figure 5 The illustrated embodiment further reduces the mounting area of the periscope camera module. In a specific application, both the third circuit board 80 and the second circuit board 40 may have connectors (not shown in FIG. 5), one of which has a plug and the other has a socket, both of which are engaged or Plug in and other ways to connect. Wherein, the manner of cooperation of the connectors described herein and hereinafter is merely for illustration. In fact, the manner of connecting the two circuit boards is not limited to the above manner, and may be connected by other means such as soldering, and The form of cooperation between the connectors may be thimble insertion, gold finger engagement, and the like. The two connectors that cooperate with each other may have a plug and a socket. For example, the socket may be a gold finger socket, the plug may be a gold finger, or the socket is a thimble hole and the plug is a thimble.

In addition, as shown in FIG. 6a, in another embodiment, the vertically extending portion 41 of the second wiring board 40 may be designed to be longer to extend to the side wall of the light steering mechanism 70, and the first from the light steering mechanism 70 The three wiring boards 80 are connected to the vertically extending portion 41 of the second wiring board 40. When connected, the third circuit board 80 and the second circuit board 40 may each have a connector, and the connector 81 shown in FIG. 6a represents the connector of the third circuit board 80 and the second circuit board 40. In the case (which may also be connected by plugging or other means), the position where the two are snap-fitted is located on the side wall of the light steering mechanism 70. By extending the length of the vertically extending portion 41 of the second circuit board, the distance between the light steering mechanism 70 and the vertically extending portion 41 can be shortened, and the difficulty of the connection can be reduced, thereby making the interior of the periscope camera module more compact.

In addition, as shown in FIG. 6b, in another embodiment, the positions of the connectors of the third circuit board 80 and the second circuit board 40 may also be disposed at vertical extensions of the light steering mechanism 70 and the second circuit board 40. Between 41, the engaged connector 81 will be located between the light redirecting mechanism 70 and the vertically extending portion 41.

Further, referring to FIG. 7, in another embodiment, the vertically extending portion 41 of the second wiring board 40 and the third wiring board 80 may be connected by the fourth wiring board 82. The connector of the third circuit board 80 is fastened to the connector of the fourth circuit board 82. For the whole of the fastening, refer to the connector 83 shown in FIG. 7 (also can be connected by plugging or other means) At the same time, the other connector of the fourth circuit board 82 is snap-fitted with the connector on the vertically extending portion 41 of the second circuit board 40, and the overall connector is referred to the connector 84 shown in FIG. Connected by plugging or other means). It can be seen from FIG. 7 that after the second circuit board is connected, the fourth circuit board can form a certain span in the lateral direction and extend to the side wall of the light steering mechanism, thereby conveniently allowing the fourth circuit board to be in the optical steering mechanism. The side wall is connected to the third circuit board, which reduces the difficulty of connection and makes the interior of the periscope camera module more compact.

Alternatively, the second wiring board 40 may be a flexible wiring board that forms a vertically extending portion 41 and a horizontally extending portion 42 because of bending. In addition, the first circuit board 130, the third circuit board 80, and/or the fourth circuit board 82 may be flexible circuit boards. In fact, the first circuit board 130, the second circuit board 40, the third circuit board 80, and/or the fourth circuit board 82 may also be a hard circuit board, a hard and soft bonding circuit board, or a ceramic substrate, and the second circuit. The plate 40 can be formed into an "L" shape at the time of manufacture to form horizontal and vertical extensions.

In addition, as shown in FIG. 8 , the periscope camera module according to the embodiment of the present invention may further include another lens mechanism 90 having a lens 91 having an optical axis and an optical lens in the lens mechanism 10 . The optical axis is vertical. The lens mechanism 90 can be separately connected to the main board, and the signal collected by the lens mechanism 90 can be transmitted to the main board together with the signals collected by the optical lens in the lens mechanism 10 for subsequent processing.

FIG. 9 is a structural diagram of a peripheral camera module in which other structures than the second circuit board 40, the processing chip 30, and the third circuit board 80 are packaged according to an embodiment of the present invention.

As shown in FIG. 9, the packaged periscope camera module includes a housing 100 having a light passing passage 101 and further including a bracket 110.

FIG. 10 shows the internal structure of the periscope camera module after the housing 100 is removed. As can be seen from FIG. 10, the components of the package in the housing include the light steering mechanism 70, the optical lens 10, the lens driving element 120, the photosensitive chip 20, and the first wiring board 130 for mounting the photosensitive chip 20.

Wherein, the light steering mechanism 70 can change the direction of the light so that the light perpendicular to the optical axis direction of the optical lens 10 is parallel to the optical axis direction of the lens mechanism 10 after changing the direction, so that the light after changing direction passes through the lens mechanism. After 10 is received by the sensor chip for imaging. Preferably, the light turning mechanism 70 is capable of diverting light to 90 degrees. Light steering mechanism 70 further includes a light processing element 74 for improving the quality of light passing through.

The bracket 110 is used to connect the incident end of the lens driving element 120 and the steering base 73 of the light steering mechanism 70 such that the steering base 73 of the light steering mechanism 70 is adjustably disposed at the incident end of the lens driving element 120.

As shown in FIG. 11, after the periscope camera module is mounted to the mobile terminal, the optical axis direction of the optical lens 10 is perpendicular to the thickness direction of the mobile terminal.

In summary, with the technical solution of the present invention, the mounting position of the processing chip is attached to the lens. The side wall of the mechanism effectively reduces the area occupied by the module as a whole, helps to install in a smaller space, meets the high requirements of the mobile terminal for the installation space, and has a wide range of application; The change is to handle the mounting position of the chip, so it does not affect the quality of the shot. Moreover, the present invention can connect the portion of the optical lens to the side of the optical lens by connecting the light steering mechanism and the circuit board, thereby avoiding connecting the connecting line or the circuit board led out by the optical steering mechanism to the main board, thereby reducing the installation space of the optical steering mechanism. , which further reduces the installation space required for the module as a whole.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are included in the spirit and scope of the present invention, should be included in the present invention. Within the scope of protection.

Claims (12)

A periscope camera module includes a photosensitive chip, a lens mechanism, a light steering mechanism, a processing chip, a first circuit board, and a second circuit board, wherein the light steering mechanism is located on a light entrance side of the lens mechanism. The first circuit board is located on a light exiting side of the lens mechanism, the photosensitive chip is mounted on the first circuit board, the processing chip is mounted on the second circuit board, the second circuit board is a first circuit board connection, wherein the second circuit board includes a first portion and a second portion, the first portion being attached to a sidewall of the lens mechanism, the second portion and the lens mechanism The bottom surface extends parallel and outward, wherein the processing chip is mounted to the first portion of the second wiring board. The periscope camera module according to claim 1, further comprising: a third circuit board connected to the optical steering mechanism, and the third circuit board and the second circuit board The first portion is electrically connected. The periscope camera module according to claim 2, wherein the first portion of the second circuit board has a first connector, and the third circuit board has a second connector, the One of the connector and the second connector has a plug and the other has a socket that is mated with the socket. The periscope camera module according to claim 3, wherein the first portion of the second circuit board extends from a sidewall of the lens mechanism to a sidewall of the light steering mechanism, The third circuit board is mated with the first portion of the second circuit board that extends to a portion of the side wall of the light steering mechanism. The periscope camera module of claim 2, further comprising a fourth circuit board extending to a side wall of the light steering mechanism, the second circuit board The first portion has a first connector, the third circuit board has a second connector, and the fourth circuit board has a third connector and a fourth connector, wherein the first connector and the first One of the three connectors has a plug, the other has a socket, the first connector is mated with the third connector; and one of the second connector and the fourth connector has a plug The other has a socket, and the second connector and the fourth connector are matingly coupled at the side wall of the light steering mechanism. The periscope camera module according to any one of claims 3 to 5, wherein the mating connection comprises: snapping, plugging, and welding. The periscope camera module according to any one of claims 3 to 5, wherein the socket is a gold finger socket, the plug is a gold finger; or the socket is a ejector hole, The plug is a thimble. The periscope camera module according to any one of claims 2 to 5, wherein the third circuit board is a flexible circuit board, a hard circuit board, a hard and soft bonding circuit board, or a ceramic substrate. The periscope camera module according to claim 5, wherein the fourth circuit board is a flexible circuit board, a hard circuit board, a hard and soft bonding circuit board, or a ceramic substrate. The periscope camera module according to claim 1, wherein the photosensitive chip is perpendicular to an optical axis of the lens mechanism, the first portion of the first circuit board and the second circuit board vertical. The periscope camera module according to claim 1, wherein a motherboard connector is mounted on the second portion of the second circuit board, and the motherboard connector is used to connect a motherboard of the mobile terminal. The periscope camera module according to any one of claims 1 to 5, 9 to 11, wherein the first circuit board and the second circuit board are flexible circuit boards and hard circuit boards. , soft and hard combined circuit board, or ceramic substrate.

Images