CN118795636A - Optical imaging lens - Google Patents
Optical imaging lens Download PDFInfo
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- CN118795636A CN118795636A CN202310387396.9A CN202310387396A CN118795636A CN 118795636 A CN118795636 A CN 118795636A CN 202310387396 A CN202310387396 A CN 202310387396A CN 118795636 A CN118795636 A CN 118795636A
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- imaging lens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
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- Optics & Photonics (AREA)
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Abstract
The application discloses an optical imaging lens, which comprises at least two lenses and an infrared filter, wherein the at least two lenses are sequentially arranged from an object side to an image side along an optical axis, the first lens closest to the object side is the ith lens closest to the image side; the ith lens is attached to the infrared filter; and at least one of the object side surface and the image side surface of the ith lens is aspheric and has at least one inflection point. The effective focal length fi of the ith lens, the effective focal length f of the optical imaging lens, and the aperture value fno of the optical imaging lens satisfy: -26< fi/f/fno <35.
Description
Technical Field
The present application relates to the field of optical elements, and more particularly, to an optical imaging lens.
Background
In recent years, technological development is gradually changed, and with the continuous updating and upgrading of consumer electronic products and continuous improvement of the requirements of people on product shooting, the requirements of the market on shooting lenses mounted on the products are also higher and higher. It is known that larger sensors can obtain purer photographs, and that large-size sensors have significant advantages in terms of imaging results, because they can effectively improve the photosensitivity and reduce the noise of the image, and can clearly present the details of the highlight and dark areas of the image in a high dynamic range. Thus, mobile phone manufacturers are also continuously increasing the size of the "bottom", i.e., the size of the photosensitive chip as the imaging medium, in order to obtain better imaging quality.
However, the use of large-size sensors has problems, for example, in that the volume of the camera and the lens is doubled in order to accommodate the larger-size sensor, and in that the complex optical design is doubled in order to uniformly spread light on the sensor. Therefore, how to design an optical imaging lens which can ensure the outsole, the illumination and the imaging quality, has smaller volume and weight and can be better suitable for light and thin portable electronic products is one of the technical problems to be solved by the present technicians.
Disclosure of Invention
The application provides an optical imaging lens which can comprise at least two lenses and an infrared filter, wherein the at least two lenses are sequentially arranged from an object side to an image side along an optical axis, a first lens is closest to the object side, and an ith lens is closest to the image side; the ith lens is attached to the infrared filter; and, at least one of the object side surface and the image side surface of the ith lens is aspheric and has at least one inflection point. The effective focal length fi of the ith lens, the effective focal length f of the optical imaging lens and the aperture value fno of the optical imaging lens can satisfy: -26< fi/f/fno <35.
In one embodiment, half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens, the distance TTL from the object side surface of the first lens to the imaging surface along the optical axis, and the refractive index Ni of the i-th lens may satisfy: 0.8< ImgH/TTL x Ni <1.5.
In one embodiment, the optical imaging lens includes a second lens located on an image side of the first lens and adjacent to the first lens, and an effective focal length f1 of the first lens and an effective focal length f2 of the second lens may satisfy: -5< (f1-f2)/(f1+f2) <3.
In one embodiment, the optical imaging lens includes an i-1 th lens located on an object side of the i-th lens and adjacent to the i-th lens, and a radius of curvature R j-1 of the object side of the i-1 th lens and a radius of curvature R j of the image side of the i-1 th lens may satisfy: -10< (R j-1-Rj)/(Rj-1+Rj) <2, where j = 2× (i-1).
In one embodiment, the radius of curvature R2 of the image side of the first lens, the radius of curvature R1 of the object side of the first lens, the radius of curvature R j of the image side of the i-1 th lens and the radius of curvature R j-1 of the object side of the i-1 th lens may satisfy: -1< (R2/R1) - (R j/Rj-1) <10, wherein j = 2× (i-1).
In one embodiment, the sum Σct of the center thicknesses of each of the first to the ith lenses on the optical axis and half the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens may satisfy: 0.5< ΣCT/ImgH <1.2.
In one embodiment, the center thickness CT1 of the first lens on the optical axis and the center thickness CTi of the ith lens on the optical axis may satisfy: 1< CT1/CTi <8.
In one embodiment, the distance Tb from the image side surface of the i-1 th lens to the object side surface of the i-th lens along the optical axis and the center thickness CTi of the i-th lens on the optical axis may satisfy: 0.9< Tb/CTi <11.
In one embodiment, a maximum CTmax of the center thicknesses of each of the first to i-th lenses on the optical axis may satisfy: 0.6mm < CTmax <1.1mm.
In one embodiment, the maximum ETmax of the edge thicknesses of the first to i-th lenses may satisfy: 0.5< CTmax/ETmax <3.
In one embodiment, the number V 40 of lenses with abbe number less than 40 in the optical imaging lens may satisfy: v 40 is more than or equal to 1.
In one embodiment, the shape of the i-th lens is formed by attaching the i-th lens to the infrared filter and then embossing.
In one embodiment, the material of the ith lens is a force deformable material.
In one embodiment, the material of the ith lens is plastic or glue.
In one embodiment, the infrared filter is made of glass.
The optical imaging lens provided by the application comprises at least two optical lenses and an infrared filter, wherein the infrared filter is attached to the ith lens closest to the image side, and at least one of the object side surface and the image side surface of the ith lens closest to the image side is an aspheric surface and has at least one inflection point; meanwhile, the effective focal length fi of the ith lens, the effective focal length f of the optical imaging lens and the aperture value fno of the optical imaging lens are controlled to meet the condition-26 fi/f/fno <35, and by the arrangement of the optical imaging lens, manufacturability of the lens closest to the image side can be guaranteed on the premise of guaranteeing a large aperture, aperture of the lens closest to the image side can be limited, lightness and thinness of the system are guaranteed, and miniaturization is achieved.
Drawings
Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, taken in conjunction with the accompanying drawings. In the drawings:
Fig. 1 shows a schematic configuration diagram of an optical imaging lens according to embodiment 1 of the present application;
fig. 2 to 5 show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatism curve, and a distortion curve, respectively, of the optical imaging lens of embodiment 1;
Fig. 6 shows a schematic structural diagram of an optical imaging lens according to embodiment 2 of the present application;
Fig. 7 to 10 show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatism curve, and a distortion curve, respectively, of the optical imaging lens of embodiment 2;
Fig. 11 shows a schematic structural view of an optical imaging lens according to embodiment 3 of the present application;
Fig. 12 to 15 show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatism curve, and a distortion curve, respectively, of the optical imaging lens of embodiment 3;
fig. 16 is a schematic diagram showing the structure of an optical imaging lens according to embodiment 4 of the present application;
fig. 17 to 20 show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatism curve, and a distortion curve, respectively, of the optical imaging lens of embodiment 4;
fig. 21 shows a schematic configuration diagram of an optical imaging lens according to embodiment 5 of the present application;
Fig. 22 to 25 show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatism curve, and a distortion curve, respectively, of the optical imaging lens of embodiment 5;
fig. 26 is a schematic diagram showing the structure of an optical imaging lens according to embodiment 6 of the present application;
Fig. 27 to 30 show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatism curve, and a distortion curve, respectively, of the optical imaging lens of embodiment 6;
fig. 31 is a schematic diagram showing the structure of an optical imaging lens according to embodiment 7 of the present application; and
Fig. 32 to 35 show an on-axis chromatic aberration curve, a chromatic aberration curve of magnification, an astigmatism curve, and a distortion curve of the optical imaging lens of embodiment 7, respectively.
Detailed Description
For a better understanding of the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the application and is not intended to limit the scope of the application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
It should be noted that in the present specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature. Accordingly, a first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.
In the drawings, the thickness, size, and shape of the lenses have been slightly exaggerated for convenience of explanation. In particular, the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings. The figures are merely examples and are not drawn to scale.
Herein, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, then the lens surface is convex at least in the paraxial region; if the lens surface is concave and the concave position is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the subject is referred to herein as the object side of the lens, and the surface of each lens closest to the imaging plane is referred to as the image side of the lens.
It will be further understood that the terms "comprises," "comprising," "includes," "including," "having," "containing," and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Furthermore, when a statement such as "at least one of the following" appears after a list of features that are listed, the entire listed feature is modified instead of modifying a separate element in the list. Furthermore, when describing embodiments of the application, use of "may" means "one or more embodiments of the application. Also, the term "exemplary" is intended to refer to an example or illustration.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
The features, principles, and other aspects of the present application are described in detail below.
The optical imaging lens according to the exemplary embodiment of the present application may include at least two lenses sequentially arranged from an object side to an image side along an optical axis, wherein a first lens is closest to the object side, and an i-th lens is closest to the image side, i.gtoreq.2.
In an exemplary embodiment, the optical imaging lens may further include an infrared filter, and the infrared filter may be attached to the i-th lens closest to the image side. Both of which may form a compound lens having a planar side.
In an exemplary embodiment, at least one of the object side surface and the image side surface of the i-th lens closest to the image side is an aspherical surface, and the aspherical surface may have at least one inflection point.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression-26 < fi/f/fno <35, where fi is an effective focal length of an i-th lens closest to an image side, f is an effective focal length of the optical imaging lens, and fno is an aperture value of the optical imaging lens. By controlling the effective focal length of the ith lens closest to the image side, the effective focal length of the optical imaging lens and the aperture value of the optical imaging lens to meet the condition-26 fi/f/fno <35, the manufacturability of the last lens (i.e. the ith lens closest to the image side) can be ensured on the premise of ensuring a large aperture, the caliber of the last lens can be limited, the lightness and thinness of the system can be ensured, and the miniaturization can be realized.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.8< ImgH/ttl×ni <1.5, where ImgH is half the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens, TTL is the distance from the object side surface of the first lens to the imaging surface along the optical axis, and Ni is the refractive index of the i-th lens. By controlling half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens, the distance from the object side surface of the first lens to the imaging surface along the optical axis, and the refractive index of the ith lens to satisfy the condition 0.8< imgh/ttl×ni <1.5, the lens size can be effectively controlled, so that the optical overall length of the optical imaging lens can be suppressed and the aberration and imaging performance can be improved even in the case of large caliber.
In an exemplary embodiment, the optical imaging lens further includes a second lens located at an image side of the first lens and adjacent to the first lens, and the optical imaging lens of the present application may satisfy the conditional expression-5 < (f 1-f 2)/(f1+f2) <3, where f1 is an effective focal length of the first lens and f2 is an effective focal length of the second lens. The ratio of the difference between the effective focal length of the first lens and the effective focal length of the second lens to the sum of the effective focal length of the first lens and the effective focal length of the second lens is controlled within the range, so that the sensitivity of the two lenses can be reduced, the excessively strict tolerance requirement is avoided, astigmatism, spherical aberration, chromatic aberration of magnification and the like caused by the first lens and the second lens can be better and complementarily eliminated through the cooperation of cross distribution and the whole system, the imaging quality of the whole system is improved, and better resolution is obtained.
In an exemplary embodiment, the optical imaging lens further includes an i-1 th lens located at an object side of the i-th lens and adjacent to the i-th lens, and the optical imaging lens of the present application may satisfy a conditional expression of-10 < (R j-1-Rj)/(Rj-1+Rj) <2, where j=2× (i-1), R j-1 is a radius of curvature of the object side of the i-1 th lens, and R j is a radius of curvature of the image side of the i-1 th lens. By controlling the ratio of the radius of curvature of the object side surface of the i-1 th lens, the difference between the radii of curvature of the image side surface of the i-1 th lens and the sum of the radii of curvature of the object side surface of the i-1 th lens and the radii of curvature of the image side surface of the i-1 th lens within the range, on the one hand, the distortion and the curvature of field of the whole system can be balanced better, on the other hand, the deformation resistance in the assembly process can be ensured, and the stability of the curvature of field can be greatly improved.
In an exemplary embodiment, the optical imaging lens further includes an i-1 th lens located on an object side of the i-th lens and adjacent to the i-th lens, and the optical imaging lens of the present application may satisfy the conditional expressions-1 < (R2/R1) - (R j/Rj-1) <10, where j=2× (i-1), where R2 is a radius of curvature of an image side of the first lens, R1 is a radius of curvature of an object side of the first lens, R j is a radius of curvature of an image side of the i-1 th lens, and R j-1 is a radius of curvature of an object side of the i-1 th lens. By controlling the curvature radius of the image side surface of the first lens, the curvature radius of the object side surface of the first lens, the curvature radius of the image side surface of the i-1 th lens and the curvature radius of the object side surface of the i-1 th lens to satisfy the condition-1 < (R2/R1) - (R j/Rj-1) <10, the problem of appearance of the lens can be avoided, the two lenses can be ensured to provide enough focal length and maintain process stability, and in addition, the method is helpful for respective internal reflection ghost images of the two lenses, and the problem that the ghost images too strongly affect actual imaging quality is avoided.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.5< Σct/ImgH <1.2, where Σct is the sum of the thicknesses of the centers of the respective lenses of the first lens to the i-th lens on the optical axis, and ImgH is half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens. By controlling the ratio of the sum of the central thicknesses of the lenses on the optical axis in the first lens to the ith lens to half of the diagonal length of the effective pixel area on the imaging surface of the optical imaging lens in the range, miniaturization can be realized while a larger photosensitive element is ensured, the larger the photosensitive element is, the more photons can be captured, the better the photosensitive performance is, the better the imaging effect is, the finer the picture is, and meanwhile, the use experience of a user can be improved by the small and light-weight lens.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition 1< ct1/CTi <8, where CT1 is a center thickness of the first lens on the optical axis and CTi is a center thickness of the ith lens on the optical axis. By controlling the ratio of the center thickness of the first lens on the optical axis to the center thickness of the ith lens on the optical axis in the range, the problems of eccentricity, large inclination and the like caused by molding of the first lens and the ith lens can be reduced, the height of the lens is shortened, the imaging quality is ensured, and a better shooting effect is realized.
In an exemplary embodiment, the optical imaging lens further includes an i-1 th lens located at an object side of the i-th lens and adjacent to the i-th lens, and the optical imaging lens of the present application may satisfy a conditional expression of 0.9< Tb/CTi <11, where Tb is a distance from an image side surface of the i-1 th lens to an object side surface of the i-th lens along an optical axis, and CTi is a center thickness of the i-th lens on the optical axis. The ratio of the distance from the image side surface of the ith lens to the object side surface of the ith lens along the optical axis to the central thickness of the ith lens on the optical axis is controlled within the range, so that the problem of assembly of the module end can be avoided, stray light of the module end is optimized, and the imaging quality is ensured.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.6mm < ctmax <1.1mm, wherein CTmax is the maximum value in the center thickness of each of the first to i-th lenses on the optical axis. The maximum value of the thicknesses of the lenses from the first lens to the ith lens on the center of the optical axis is controlled in the range, so that manufacturability of the lenses can be guaranteed, better diopter can be obtained, imaging quality of the whole system is improved, and better resolution is obtained.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.5< ctmax/ETmax <3, wherein CTmax is a maximum value in a center thickness of each of the first to i-th lenses on the optical axis, and ETmax is a maximum value in an edge thickness of each of the first to i-th lenses. The ratio of the maximum value in the central thickness of each lens from the first lens to the ith lens on the optical axis to the maximum value in the edge thickness of each lens from the first lens to the ith lens is controlled within the range, so that the processing and assembly processes of the lenses can be ensured, and the problems of difficult actual debugging, easy deformation of the lenses and the like caused by the problems of over-thin lens, over-thick lens, over-small necking and the like are avoided, thereby influencing the quality of the lenses; on the other hand, the thickness distribution of the lens can be more uniform, and the requirements of reliability can be met.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition that V 40 be 1 or more, where V 40 is the number of lenses with an abbe number of less than 40 in the optical imaging lens. The lens with the Abbe number smaller than 40 in the lens is ensured to have a certain number, so that the lens is matched with the lens with the high Abbe number to reduce chromatic aberration, and meanwhile, the imaging quality can be improved due to the higher refractive index of the lens with the low Abbe number.
In an exemplary embodiment, the shape of the i-th lens closest to the image side in the optical imaging lens of the present application may be a shape required for a design formed by imprinting after attaching the i-th lens to the infrared filter. The material of the ith lens can be selected as a similar material such as glue, and the like, and the material takes an IR (infrared) sheet as a substrate in terms of cost, processing difficulty, process stability and the like, adopts a relatively preferable scheme such as a nano imprinting process, has more stable forming, cutting and assembling, has more easily ensured eccentric, inclined, sagittal high-quality parameters and the like, and is beneficial to improving the subsequent mass production yield.
In an exemplary embodiment, the material of the ith lens closest to the image side in the optical imaging lens of the present application may be a force deformable material. Illustratively, the material of the ith lens may be plastic, glue, or the like. The ith lens can be an aspherical lens, and the ith lens and the infrared filter can be formed into a composite lens, so that the cost, the processing difficulty, the process stability and the like are considered, glue can be selected as a material for forming the ith lens, the shrinkage pressure in the manufacturing process is smaller, and the conditions of filter fracture and the like caused by the shrinkage pressure can be prevented.
In an exemplary embodiment, the material of the infrared filter included in the optical imaging lens of the present application may be glass. Generally, the material of the infrared filter may be glass or plastic, in an exemplary embodiment, since the material of the ith lens closest to the image side may be glue, the material is further glued with the infrared filter to form a composite lens, under the working condition of thermal shock, shrinkage stress of glue stamped on the filter is easy to cause the filter to crack, and the infrared filter made of glass material is matched with a proper glue material to select the material so as to reduce stress, enhance the transmittance after stamping, and ensure better imaging quality.
In an exemplary embodiment, the optical imaging lens of the present application may include at least one diaphragm. The diaphragm can restrict the light path and control the intensity of light. The diaphragm may be arranged in a suitable position of the optical imaging lens, for example, the diaphragm may be located between the object side and the first lens.
In an exemplary embodiment, the optical imaging lens described above may optionally further include a protective glass for protecting the photosensitive element located on the imaging surface.
The optical imaging lens according to the above embodiment of the present application may include at least two optical lenses and one infrared filter, wherein the infrared filter is attached to an i-th lens closest to an image side, and at least one of an object side surface and an image side surface of the i-th lens closest to the image side is aspheric and has at least one inflection point; meanwhile, the effective focal length fi of the ith lens, the effective focal length f of the optical imaging lens and the aperture value fno of the optical imaging lens are controlled to meet the condition-26 fi/f/fno <35, and by the arrangement of the optical imaging lens, manufacturability of the lens closest to the image side can be guaranteed on the premise of guaranteeing a large aperture, aperture of the lens closest to the image side can be limited, lightness and thinness of the system are guaranteed, and miniaturization is achieved.
In an embodiment of the present application, at least one aspherical mirror surface may be included in at least two mirrors included in the optical imaging lens, and the aspherical lens has better radius of curvature characteristics and has advantages of improving distortion aberration and improving astigmatic aberration. By adopting the aspherical lens, aberration occurring during imaging can be eliminated as much as possible, thereby improving imaging quality.
However, it will be appreciated by those skilled in the art that the number of lenses constituting the optical imaging lens may be reasonably determined to achieve the respective results and advantages described in the present specification without departing from the technical solution claimed in the present application, which is not particularly limited thereto.
Specific examples of the optical imaging lens applicable to the above-described embodiments are further described below with reference to the accompanying drawings.
Example 1
An optical imaging lens according to embodiment 1 of the present application is described below with reference to fig. 1 to 5. Fig. 1 shows a schematic configuration diagram of an optical imaging lens according to embodiment 1 of the present application.
As shown in fig. 1, the optical imaging lens sequentially includes, from an object side to an image side along an optical axis: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, seventh lens E7, and eighth lens E8.
In this embodiment, the first lens element E1 has positive refractive power, and the object-side surface S1 thereof is convex and the image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is convex. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave, and an image-side surface S10 thereof is concave. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The eighth lens element E8 has negative refractive power, wherein an object-side surface S15 thereof is concave, and an image-side surface S16 thereof is planar. On the image side of the eighth lens element E8, the optical imaging lens further includes an infrared filter attached to the eighth lens element E8, and the object side surface S16 and the image side surface S17 of the infrared filter are both planes, and the infrared filter and the eighth lens element E8 form a compound lens. The optical imaging lens also has an imaging surface S18, and light from an object can sequentially pass through the respective surfaces S1 to S17 and finally be imaged on the imaging surface S18.
Table 1 shows basic parameters of the optical imaging lens of embodiment 1, in which the units of radius of curvature, thickness/distance, and effective radius are all millimeters (mm).
TABLE 1
In embodiment 1, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 and the object side surface of the eighth lens element E8 are aspherical, and the surface profile x of each aspherical lens element can be defined by, but not limited to, the following aspherical formula:
wherein x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at the position with the height h along the optical axis direction; c is the paraxial curvature of the aspheric surface, c=1/R (i.e., paraxial curvature c is the inverse of radius of curvature R in table 1 above); k is a conic coefficient; ai is the correction coefficient of the aspherical i-th order. The following tables 2-1 and 2-2 show the higher order coefficients A4、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28 and A 30 that can be used for each of the aspherical mirror faces S1 to S15 in example 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 1.0961E-02 | 9.6345E-04 | -1.1928E-03 | -5.4125E-04 | -3.0994E-04 | -4.9751E-05 | -4.3170E-05 |
| S2 | -2.4391E-02 | 1.3073E-02 | -3.7812E-03 | 9.4853E-04 | -1.8564E-04 | -4.6743E-06 | -2.4957E-05 |
| S3 | -2.5127E-02 | 2.6280E-02 | -1.2896E-03 | 2.2022E-03 | 4.1237E-05 | 7.9055E-05 | -1.9275E-05 |
| S4 | -9.1565E-03 | 8.3949E-03 | 5.0763E-05 | 1.0006E-03 | 2.6336E-04 | 1.3498E-04 | 5.0001E-05 |
| S5 | -2.3161E-01 | -5.1821E-03 | 2.2780E-03 | 1.2723E-03 | 2.6617E-04 | 4.8816E-05 | -1.3759E-05 |
| S6 | -2.4450E-01 | 2.5871E-02 | 8.7419E-03 | 2.9680E-03 | 1.3934E-03 | 9.9537E-05 | -2.5728E-04 |
| S7 | -1.3294E-01 | 6.4386E-03 | -2.2793E-03 | 2.6960E-03 | 3.2774E-03 | 9.8158E-04 | -1.0776E-04 |
| S8 | -2.0633E-01 | -2.2678E-02 | -5.1379E-03 | 2.2298E-03 | 3.2032E-03 | 2.0695E-03 | 9.5145E-04 |
| S9 | -2.8123E-01 | -3.7744E-02 | -1.7071E-03 | 6.6142E-03 | -2.6241E-03 | 3.9454E-04 | 3.0093E-04 |
| S10 | -1.0477E+00 | 3.1135E-01 | -5.9099E-02 | 2.6504E-02 | -2.3716E-02 | 7.2017E-03 | -1.8585E-04 |
| S11 | -1.3455E+00 | 1.8893E-02 | 8.2436E-02 | 3.1628E-02 | -1.6226E-02 | -2.5185E-03 | -3.4667E-03 |
| S12 | -8.6121E-01 | -2.1536E-01 | 1.4801E-01 | -5.5979E-02 | 6.3550E-03 | 1.0774E-04 | 4.1121E-03 |
| S13 | -1.7968E+00 | 6.1269E-01 | -1.5097E-01 | -1.3777E-03 | 1.5494E-02 | 3.5255E-03 | -1.0847E-02 |
| S14 | -4.9254E+00 | 1.0366E+00 | -2.7023E-01 | 9.4912E-02 | -3.8439E-02 | 1.6848E-02 | -1.0599E-02 |
| S15 | 7.2558E-01 | -2.7883E-02 | -8.9938E-02 | 8.6362E-02 | -5.2276E-02 | 2.7482E-02 | -1.3494E-02 |
TABLE 2-1
TABLE 2-2
Fig. 2 shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 1, which indicates the focus deviation of light rays of different wavelengths after passing through the lens. Fig. 3 shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 1, which represents the deviation of different image heights on the imaging plane after light passes through the lens. Fig. 4 shows an astigmatism curve of the optical imaging lens of embodiment 1, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 5 shows distortion curves of the optical imaging lens of embodiment 1, which represent distortion magnitude values corresponding to different image heights. As can be seen from fig. 2 to 5, the optical imaging lens provided in embodiment 1 can achieve good imaging quality.
Example 2
An optical imaging lens according to embodiment 2 of the present application is described below with reference to fig. 6 to 10. In this embodiment and the following embodiments, descriptions of portions similar to embodiment 1 will be omitted for brevity. Fig. 6 shows a schematic structural diagram of an optical imaging lens according to embodiment 2 of the present application.
As shown in fig. 6, the optical imaging lens sequentially includes, from an object side to an image side along an optical axis: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, seventh lens E7, and eighth lens E8.
In this embodiment, the first lens element E1 has positive refractive power, and the object-side surface S1 thereof is convex and the image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is convex. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is convex and an image-side surface S10 thereof is concave. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has negative refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The eighth lens element E8 has positive refractive power, wherein an object-side surface S15 thereof is convex, and an image-side surface S16 thereof is planar. On the image side of the eighth lens element E8, the optical imaging lens further includes an infrared filter attached to the eighth lens element E8, and the object side surface S16 and the image side surface S17 of the infrared filter are both planes, and the infrared filter and the eighth lens element E8 form a compound lens. The optical imaging lens also has an imaging surface S18, and light from an object can sequentially pass through the respective surfaces S1 to S17 and finally be imaged on the imaging surface S18.
Table 3 shows basic parameters of the optical imaging lens of embodiment 2, in which the units of radius of curvature, thickness/distance, and effective radius are all millimeters (mm). Tables 4-1 and 4-2 show the higher order coefficients A4、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28 and a 30 that can be used for each of the aspherical mirror faces S1 to S15 in embodiment 2, wherein each aspherical surface type can be defined by the formula (1) given in embodiment 1 above.
TABLE 3 Table 3
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -8.9069E-03 | -5.9917E-03 | -2.5922E-03 | -8.7066E-04 | -2.0186E-04 | -4.7937E-05 | 1.9928E-07 |
| S2 | -7.3726E-02 | 1.2748E-02 | -4.6453E-03 | 1.0092E-03 | -1.8955E-04 | -1.1085E-04 | 9.0968E-06 |
| S3 | -4.7215E-02 | 3.2565E-02 | -2.3465E-03 | 2.4521E-03 | -1.0886E-04 | 5.1205E-05 | -2.0323E-05 |
| S4 | 1.7223E-03 | 1.4024E-02 | 2.1136E-04 | 1.4946E-03 | 4.6731E-04 | 2.7205E-04 | 1.2134E-04 |
| S5 | -2.1848E-01 | -1.0396E-02 | 6.3233E-04 | 1.5817E-03 | 6.2946E-04 | 2.3848E-04 | 8.9671E-05 |
| S6 | -2.8115E-01 | 1.0544E-02 | 1.0537E-02 | 2.9901E-03 | 8.4157E-04 | -2.3137E-05 | -3.3170E-05 |
| S7 | -8.7996E-02 | 2.4516E-02 | 5.2007E-03 | -5.4905E-04 | 1.0660E-03 | -7.9065E-05 | -8.4524E-05 |
| S8 | -2.4941E-01 | 1.3414E-02 | 3.1321E-03 | 1.7088E-03 | 2.9483E-03 | 1.5775E-03 | 2.9563E-04 |
| S9 | -6.8868E-01 | -3.1928E-02 | -5.9566E-03 | 1.2280E-02 | 2.1382E-03 | 5.0859E-03 | 5.9917E-05 |
| S10 | -1.9726E+00 | 3.8633E-01 | -7.3314E-02 | 3.2180E-02 | -1.9309E-02 | 8.7267E-03 | -2.8895E-03 |
| S11 | -2.8639E+00 | 2.6223E-01 | 3.8671E-02 | 2.5243E-02 | -1.8990E-02 | 4.7278E-03 | 1.0087E-05 |
| S12 | -8.5554E-01 | -2.3439E-01 | 1.6747E-01 | -6.8378E-02 | 2.7066E-02 | -8.0139E-03 | 3.3644E-03 |
| S13 | -2.4375E+00 | 1.0966E+00 | -4.6767E-01 | 1.8880E-01 | -6.2548E-02 | 1.0837E-02 | 8.2072E-04 |
| S14 | -6.2197E+00 | 1.4190E+00 | -4.1660E-01 | 1.7153E-01 | -6.7008E-02 | 3.2668E-02 | -1.9556E-02 |
| S15 | 1.6338E-01 | 8.1573E-03 | -1.3211E-02 | -1.8379E-03 | -6.7442E-03 | -1.1408E-03 | 1.1201E-03 |
TABLE 4-1
TABLE 4-2
Fig. 7 shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 2, which indicates the focus deviation of light rays of different wavelengths after passing through the lens. Fig. 8 shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 2, which represents the deviation of different image heights on the imaging plane after light passes through the lens. Fig. 9 shows an astigmatism curve of the optical imaging lens of embodiment 2, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 10 shows a distortion curve of the optical imaging lens of embodiment 2, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 7 to 10, the optical imaging lens provided in embodiment 2 can achieve good imaging quality.
Example 3
An optical imaging lens according to embodiment 3 of the present application is described below with reference to fig. 11 to 15. Fig. 11 shows a schematic structural diagram of an optical imaging lens according to embodiment 3 of the present application.
As shown in fig. 11, the optical imaging lens sequentially includes, from an object side to an image side along an optical axis: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, seventh lens E7, and eighth lens E8.
In this embodiment, the first lens element E1 has positive refractive power, and the object-side surface S1 thereof is convex and the image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is concave, and an image-side surface S6 thereof is concave. The fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is convex. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave, and an image-side surface S10 thereof is concave. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex and an image-side surface S12 thereof is concave. The seventh lens element E7 has negative refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The eighth lens element E8 has positive refractive power, wherein an object-side surface S15 thereof is convex, and an image-side surface S16 thereof is planar. On the image side of the eighth lens element E8, the optical imaging lens further includes an infrared filter attached to the eighth lens element E8, and the object side surface S16 and the image side surface S17 of the infrared filter are both planes, and the infrared filter and the eighth lens element E8 form a compound lens. The optical imaging lens also has an imaging surface S18, and light from an object can sequentially pass through the respective surfaces S1 to S17 and finally be imaged on the imaging surface S18.
Table 5 shows basic parameters of the optical imaging lens of embodiment 3, in which the units of radius of curvature, thickness/distance, and effective radius are all millimeters (mm). Tables 6-1 and 6-2 show the higher order coefficients A4、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28 and a 30 that can be used for each of the aspherical mirror faces S1 to S15 in embodiment 3, wherein each aspherical surface type can be defined by the formula (1) given in embodiment 1 above.
TABLE 5
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -2.0317E-02 | -8.0953E-03 | -2.4137E-03 | -4.8220E-04 | -6.2394E-05 | 7.0474E-06 | -2.0516E-06 |
| S2 | -7.0783E-02 | 7.2906E-03 | -2.4900E-03 | 5.7995E-04 | -7.6451E-05 | -3.0763E-06 | -9.9830E-06 |
| S3 | -3.2850E-02 | 2.0802E-02 | -9.7515E-04 | 1.2071E-03 | -6.7775E-05 | -1.5800E-05 | -1.1028E-05 |
| S4 | 1.7511E-03 | 6.3611E-03 | -4.0639E-04 | 4.2932E-04 | 4.9058E-05 | 1.7249E-05 | 6.7984E-06 |
| S5 | -1.4773E-01 | -8.0840E-03 | -1.0880E-03 | 6.6864E-04 | 2.4204E-04 | 8.5999E-05 | 1.6577E-05 |
| S6 | -2.0075E-01 | 1.5915E-02 | 4.5747E-03 | 2.3321E-03 | 6.1674E-04 | -1.0331E-04 | -3.4143E-05 |
| S7 | -1.3790E-01 | 5.8038E-02 | 4.6653E-03 | -3.0799E-03 | -1.4373E-03 | -1.0358E-03 | 1.4102E-04 |
| S8 | -2.0007E-01 | 5.5477E-02 | 3.1265E-02 | 8.3806E-05 | -3.4949E-03 | -4.8588E-03 | -2.7108E-03 |
| S9 | -1.6275E-01 | -2.8348E-01 | 5.7017E-02 | 3.3508E-02 | 2.1661E-02 | 1.4349E-03 | -2.5791E-03 |
| S10 | -1.1732E+00 | 1.6837E-01 | -7.1322E-03 | 3.6007E-02 | -3.4512E-02 | 1.0104E-02 | -4.7337E-04 |
| S11 | -5.0303E+00 | 1.0860E+00 | -1.6343E-01 | -3.7895E-02 | 1.8511E-02 | 1.9474E-02 | -2.2006E-02 |
| S12 | -2.5782E+00 | 2.3030E-01 | 1.1867E-01 | -1.1518E-01 | 4.8444E-02 | -2.4696E-03 | 9.9533E-03 |
| S13 | -2.0573E+00 | 8.7895E-01 | -3.7566E-01 | 1.6128E-01 | -7.6786E-02 | 5.2305E-02 | -2.8709E-02 |
| S14 | -6.6602E+00 | 1.5304E+00 | -4.5002E-01 | 1.8714E-01 | -9.0155E-02 | 3.3420E-02 | -1.1676E-02 |
| S15 | 1.5720E-01 | 5.6822E-01 | -6.6231E-02 | 8.6890E-02 | -1.1368E-01 | -4.9504E-02 | -1.5127E-01 |
TABLE 6-1
| Face number | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | 2.2905E-06 | -2.9962E-06 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S2 | -4.6571E-06 | 9.6795E-07 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S3 | -3.1654E-06 | -7.9549E-07 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | -5.0366E-07 | -4.1529E-08 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S5 | -5.8724E-06 | 2.6174E-06 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S6 | -4.6050E-05 | 2.5109E-05 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S7 | -6.0024E-05 | -9.1351E-05 | -8.0614E-05 | 2.3139E-05 | 7.6819E-06 | -6.8809E-06 | 1.0133E-06 |
| S8 | -8.3469E-04 | 1.9251E-04 | 3.8389E-04 | 3.0906E-04 | 1.6918E-04 | 6.8550E-05 | 9.1250E-06 |
| S9 | -4.0912E-03 | -1.6885E-03 | -3.2215E-04 | 4.1724E-04 | 3.8118E-04 | 1.6127E-04 | 5.5623E-05 |
| S10 | -1.8753E-03 | -2.0883E-03 | -1.5227E-03 | -4.5356E-04 | -5.6976E-04 | -1.7205E-04 | -8.8626E-05 |
| S11 | 4.5878E-03 | 4.1168E-03 | -2.8344E-03 | -6.2927E-04 | 7.5211E-04 | -1.6050E-05 | -1.7677E-04 |
| S12 | -1.6392E-02 | 3.8275E-03 | 3.3304E-04 | 1.6264E-03 | -2.6860E-03 | 1.0445E-04 | -1.0818E-04 |
| S13 | -2.5461E-03 | 1.3756E-02 | -6.6259E-03 | -3.1366E-03 | 3.6844E-03 | 5.1266E-04 | -9.4724E-04 |
| S14 | 1.6248E-02 | -1.7183E-03 | 2.1199E-03 | 2.1060E-03 | 2.0081E-03 | 3.3225E-04 | 3.5351E-04 |
| S15 | -1.9859E-02 | 2.0348E-02 | 9.4316E-02 | 6.1456E-02 | 4.9371E-02 | 1.2804E-02 | 6.1595E-03 |
TABLE 6-2
Fig. 12 shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 3, which indicates the focus deviation of light rays of different wavelengths after passing through the lens. Fig. 13 shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 3, which represents the deviation of different image heights on the imaging plane after light passes through the lens. Fig. 14 shows an astigmatism curve of the optical imaging lens of embodiment 3, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 15 shows a distortion curve of the optical imaging lens of embodiment 3, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 12 to 15, the optical imaging lens provided in embodiment 3 can achieve good imaging quality.
Example 4
An optical imaging lens according to embodiment 4 of the present application is described below with reference to fig. 16 to 20. Fig. 16 shows a schematic configuration diagram of an optical imaging lens according to embodiment 4 of the present application.
As shown in fig. 16, the optical imaging lens sequentially includes, from an object side to an image side along an optical axis: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, seventh lens E7, and eighth lens E8.
In this embodiment, the first lens element E1 has positive refractive power, and the object-side surface S1 thereof is convex and the image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is convex and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave and an image-side surface S12 thereof is convex. The seventh lens element E7 has positive refractive power, wherein an object-side surface S13 thereof is convex, and an image-side surface S14 thereof is concave. The eighth lens element E8 has negative refractive power, wherein an object-side surface S15 thereof is concave, and an image-side surface S16 thereof is planar. On the image side of the eighth lens element E8, the optical imaging lens further includes an infrared filter attached to the eighth lens element E8, and the object side surface S16 and the image side surface S17 of the infrared filter are both planes, and the infrared filter and the eighth lens element E8 form a compound lens. The optical imaging lens also has an imaging surface S18, and light from an object can sequentially pass through the respective surfaces S1 to S17 and finally be imaged on the imaging surface S18.
Table 7 shows basic parameters of the optical imaging lens of embodiment 4, in which the units of radius of curvature, thickness/distance, and effective radius are all millimeters (mm). Tables 8-1 and 8-2 show the higher order coefficients A4、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28 and a 30 that can be used for each of the aspherical mirror faces S1 to S15 in embodiment 4, wherein each aspherical surface type can be defined by the formula (1) given in embodiment 1 above.
TABLE 7
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 1.0842E-02 | 9.7769E-04 | -2.4020E-04 | -1.5377E-05 | -5.6385E-05 | 1.4458E-05 | -1.4765E-05 |
| S2 | 2.6387E-02 | -3.8041E-03 | -6.7891E-04 | -6.7104E-05 | -6.2244E-05 | 1.5227E-05 | 5.3317E-06 |
| S3 | -6.2977E-02 | 5.9214E-03 | -1.2354E-03 | 2.7314E-04 | -1.1780E-04 | 3.9443E-05 | -7.2455E-06 |
| S4 | -5.3285E-02 | 1.3733E-02 | 5.0075E-04 | 4.9295E-04 | -3.4051E-05 | -5.0883E-06 | -1.5214E-05 |
| S5 | 2.1877E-02 | 2.6845E-03 | 9.7197E-04 | 2.0149E-04 | -2.9301E-05 | -3.6091E-05 | -1.8555E-05 |
| S6 | 1.4392E-02 | 2.1524E-03 | 2.6716E-03 | 5.7716E-04 | 1.6009E-04 | -1.1891E-04 | -1.6657E-05 |
| S7 | -1.4353E-01 | -7.7852E-03 | 1.4717E-03 | 7.0473E-04 | 4.4248E-04 | -2.6433E-04 | 5.8592E-06 |
| S8 | -3.0835E-01 | 3.7758E-02 | 5.7958E-04 | 4.7105E-04 | -3.2293E-05 | -1.0273E-03 | 3.4549E-04 |
| S9 | -6.9607E-01 | 8.2110E-02 | 2.9534E-03 | -9.5825E-04 | -1.4603E-04 | -8.8858E-04 | 5.2901E-04 |
| S10 | -3.2485E-01 | 1.4950E-02 | 1.1194E-02 | -5.7595E-03 | 4.7490E-04 | 2.9177E-04 | -1.1293E-04 |
| S11 | 1.0477E+00 | -1.0396E-01 | 1.0648E-02 | -4.9283E-03 | 1.5117E-03 | -4.0298E-04 | 1.0071E-04 |
| S12 | 3.9254E-01 | 5.9979E-02 | -3.4866E-02 | 1.1760E-03 | 1.3324E-03 | -1.2422E-03 | 7.4138E-04 |
| S13 | -2.3846E+00 | 3.4812E-01 | 8.6401E-03 | -9.6317E-03 | -9.7899E-03 | 6.1323E-03 | -1.1140E-03 |
| S14 | -1.6186E+00 | -6.0827E-02 | -1.5894E-02 | 1.0738E-02 | 5.4015E-04 | 6.4746E-03 | 8.6374E-04 |
| S15 | 2.8460E+00 | -3.1364E-01 | -1.1741E-01 | 7.2950E-02 | -5.6165E-02 | 2.1393E-02 | -1.5481E-03 |
TABLE 8-1
| Face number | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | 1.0085E-05 | -4.9675E-06 | 4.9706E-06 | -5.4046E-06 | 1.7404E-06 | -2.4024E-06 | 1.6101E-06 |
| S2 | -1.0540E-06 | -1.2571E-06 | -1.7533E-06 | 7.7016E-07 | -7.1655E-07 | 1.2082E-06 | -3.9869E-07 |
| S3 | 1.2801E-05 | 1.8536E-07 | -5.0178E-08 | -8.3397E-06 | -4.2682E-06 | -2.4737E-06 | 2.4480E-06 |
| S4 | -1.7126E-06 | 1.1358E-05 | 6.9629E-06 | 2.7526E-06 | -1.8843E-06 | 8.7417E-07 | 2.9589E-07 |
| S5 | 4.8600E-06 | -2.8125E-06 | 3.0978E-06 | -3.7512E-06 | -5.5161E-07 | -3.7460E-06 | 2.1461E-06 |
| S6 | -3.3115E-05 | 8.2559E-06 | -4.5643E-07 | 3.5494E-06 | 3.0814E-07 | 3.5393E-06 | 3.1197E-06 |
| S7 | -7.0415E-05 | -2.3064E-05 | -9.8107E-06 | 6.2215E-06 | -6.2321E-07 | 3.8464E-06 | 6.6256E-07 |
| S8 | -7.5421E-05 | 4.7178E-05 | -9.7206E-06 | 2.8038E-05 | -1.6172E-05 | 1.3080E-05 | -1.1149E-05 |
| S9 | 2.4903E-05 | -1.6051E-05 | 1.3849E-05 | 1.9366E-05 | -2.3166E-05 | 8.8767E-06 | -1.1716E-05 |
| S10 | 7.0559E-06 | -9.0924E-06 | 9.5165E-05 | 3.5442E-05 | -1.7857E-05 | -3.3245E-06 | -1.3309E-05 |
| S11 | -9.5447E-05 | 9.6619E-05 | -3.2282E-05 | 5.8997E-05 | -5.4714E-05 | 5.0735E-06 | 4.4588E-06 |
| S12 | 2.0837E-04 | -3.8444E-04 | -1.7047E-05 | 2.0833E-04 | -4.7078E-05 | -6.1383E-05 | 2.6227E-05 |
| S13 | -1.7336E-04 | -2.1723E-04 | 2.4522E-04 | -1.2542E-05 | -7.3854E-05 | 9.6012E-06 | 1.4851E-05 |
| S14 | -1.2423E-03 | -1.1933E-03 | 1.7567E-04 | -9.7749E-05 | 2.4613E-05 | 1.6183E-04 | -5.8038E-05 |
| S15 | -5.7810E-04 | -4.8086E-04 | 1.8744E-03 | -2.2661E-03 | 3.3946E-04 | 7.7024E-04 | -1.8232E-04 |
TABLE 8-2
Fig. 17 shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 4, which indicates the focus deviation of light rays of different wavelengths after passing through the lens. Fig. 18 shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 4, which represents the deviation of different image heights on the imaging plane after light passes through the lens. Fig. 19 shows an astigmatism curve of the optical imaging lens of embodiment 4, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 20 shows a distortion curve of the optical imaging lens of embodiment 4, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 17 to 20, the optical imaging lens provided in embodiment 4 can achieve good imaging quality.
Example 5
An optical imaging lens according to embodiment 5 of the present application is described below with reference to fig. 21 to 25. Fig. 21 shows a schematic configuration diagram of an optical imaging lens according to embodiment 5 of the present application.
As shown in fig. 21, the optical imaging lens sequentially includes, from an object side to an image side along an optical axis: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, and seventh lens E7.
In this embodiment, the first lens element E1 has positive refractive power, and the object-side surface S1 thereof is convex and the image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is convex and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is convex. The sixth lens element E6 has negative refractive power, wherein an object-side surface S11 thereof is concave, and an image-side surface S12 thereof is concave. The seventh lens element E7 has negative refractive power, wherein an object-side surface S13 thereof is concave, and an image-side surface S14 thereof is planar. On the image side of the seventh lens element E7, the optical imaging lens further includes an infrared filter attached to the seventh lens element E7, and the object side surface S14 and the image side surface S15 of the infrared filter are both planar, and the infrared filter and the seventh lens element E7 form a compound lens. The optical imaging lens also has an imaging surface S16, and light from an object can sequentially pass through the respective surfaces S1 to S15 and finally be imaged on the imaging surface S16.
Table 9 shows basic parameters of the optical imaging lens of embodiment 5, in which the units of radius of curvature, thickness/distance, and effective radius are all millimeters (mm). Tables 10-1 and 10-2 show the higher order coefficients A4、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28 and a 30 that can be used for each of the aspherical mirror faces S1 to S13 in embodiment 5, where each aspherical surface type can be defined by the formula (1) given in embodiment 1 above.
TABLE 9
TABLE 10-1
| Face number | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | 2.2464E-06 | -4.9035E-07 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S2 | 6.0554E-07 | 1.5419E-06 | -4.2299E-07 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S3 | 4.6814E-07 | -6.6989E-07 | 5.6993E-07 | -1.0136E-07 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | -1.0236E-06 | -1.1467E-06 | -2.0969E-06 | -4.1053E-07 | 2.1106E-07 | 1.0308E-06 | 3.4141E-07 |
| S5 | 9.9406E-06 | -1.6422E-06 | -9.5077E-07 | -1.7006E-06 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S6 | 6.6864E-05 | 1.3726E-05 | 5.2093E-06 | -1.5613E-06 | -1.7730E-08 | 3.3896E-07 | 1.8040E-06 |
| S7 | 1.6407E-04 | -5.0332E-05 | -1.8140E-05 | 4.6457E-07 | 9.7778E-06 | -5.7953E-06 | 2.1823E-06 |
| S8 | 1.8209E-04 | -2.3581E-04 | -4.9804E-05 | 2.6871E-05 | 2.4147E-05 | -1.2994E-05 | 1.7137E-06 |
| S9 | 3.9140E-04 | 1.3247E-04 | -6.5682E-05 | -6.7453E-06 | 5.0642E-06 | -4.9833E-07 | -1.8920E-09 |
| S10 | 1.9687E-05 | -2.6741E-04 | -1.0769E-04 | 6.5550E-05 | -2.3114E-06 | -1.5113E-06 | 0.0000E+00 |
| S11 | 2.9679E-03 | -1.5231E-03 | 4.2832E-04 | -4.4327E-05 | -3.7839E-06 | 8.6060E-07 | -4.7058E-09 |
| S12 | 6.5306E-03 | -3.3440E-03 | 1.4855E-03 | -4.8117E-04 | 1.0087E-04 | -1.0072E-05 | 6.0925E-08 |
| S13 | 1.6486E-02 | -1.0186E-02 | 5.8402E-03 | -3.1272E-03 | 1.2594E-03 | -2.8603E-04 | 2.6202E-05 |
TABLE 10-2
Fig. 22 shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 5, which indicates the focus deviation of light rays of different wavelengths after passing through the lens. Fig. 23 shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 5, which represents the deviation of different image heights on the imaging plane after light passes through the lens. Fig. 24 shows an astigmatism curve of the optical imaging lens of embodiment 5, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 25 shows a distortion curve of the optical imaging lens of embodiment 5, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 22 to 25, the optical imaging lens provided in embodiment 5 can achieve good imaging quality.
Example 6
An optical imaging lens according to embodiment 6 of the present application is described below with reference to fig. 26 to 30. Fig. 26 shows a schematic configuration of an optical imaging lens according to embodiment 6 of the present application.
As shown in fig. 26, the optical imaging lens sequentially includes, from an object side to an image side along an optical axis: stop STO, first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, and sixth lens E6.
In this embodiment, the first lens element E1 has positive refractive power, and the object-side surface S1 thereof is convex and the image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is concave and an image-side surface S8 thereof is convex. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave, and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S12 thereof is planar and an image-side surface S13 thereof is concave. On the object side of the sixth lens element E6, the optical imaging lens further includes an infrared filter attached to the sixth lens element E6, wherein the infrared filter has an object side surface S11 and image side surfaces S12, and the object side surfaces S11 and S12 are all planes. The image side surface S12 of the infrared filter is attached to the object side surface S12 of the sixth lens element E6, and the image side surface S12 of the infrared filter and the object side surface S12 form a compound lens. The optical imaging lens also has an imaging surface S14, and light from an object can sequentially pass through the respective surfaces S1 to S13 and finally be imaged on the imaging surface S14.
Table 11 shows basic parameters of the optical imaging lens of example 6, in which the units of radius of curvature, thickness/distance, and effective radius are all millimeters (mm). Tables 12-1 and 12-2 show the higher order coefficients A4、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28 and a 30 that can be used for each of the aspherical mirror faces S1 to S10, S13 in example 6, where each aspherical surface type can be defined by the formula (1) given in example 1 above.
TABLE 11
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -4.6362E-03 | -3.4838E-03 | -1.8539E-03 | -5.4975E-04 | -2.1463E-04 | -3.0147E-05 | -2.4396E-05 |
| S2 | -7.0908E-02 | 5.6546E-03 | -3.9960E-03 | 1.4769E-04 | -8.1260E-05 | -1.4497E-05 | 8.8740E-06 |
| S3 | -4.7295E-02 | 1.7520E-02 | -3.1951E-03 | 6.3561E-04 | -7.2201E-05 | -2.3107E-05 | 2.1456E-06 |
| S4 | 1.2641E-02 | 1.2062E-02 | 2.3136E-04 | 5.0194E-04 | 8.5392E-05 | 2.4416E-06 | -2.8629E-06 |
| S5 | -1.3417E-01 | 9.3637E-04 | 2.9160E-03 | 1.9375E-03 | 6.2368E-04 | 2.0736E-04 | -3.3571E-06 |
| S6 | -2.4855E-01 | 8.2642E-03 | 1.1583E-02 | 4.6883E-03 | 1.5131E-03 | 2.5882E-04 | -4.3031E-05 |
| S7 | -4.0948E-01 | -1.7647E-02 | 3.0570E-02 | 2.5924E-03 | -2.9536E-03 | -1.0545E-04 | 7.6275E-04 |
| S8 | 3.7997E-01 | 8.1330E-03 | 1.8190E-02 | -2.5629E-02 | 1.7094E-03 | 5.3401E-03 | -2.1793E-04 |
| S9 | -5.4015E-01 | 3.7238E-01 | -1.3581E-01 | 2.8023E-02 | 1.9231E-03 | -1.9060E-03 | -9.8272E-04 |
| S10 | -2.6556E+00 | 4.7010E-01 | -1.2675E-01 | 5.6707E-02 | -2.0064E-02 | 8.5859E-03 | -5.3147E-03 |
| S13 | -2.4744E-01 | 1.7362E-02 | 8.2705E-04 | -2.0117E-02 | 1.0936E-02 | -1.0141E-02 | 8.1295E-03 |
TABLE 12-1
| Face number | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | 7.5753E-06 | -6.0239E-06 | 5.9283E-06 | -4.6188E-06 | 2.7543E-06 | -5.8209E-07 | 9.9415E-07 |
| S2 | 6.3874E-06 | 9.7875E-06 | 9.3440E-07 | 2.6733E-07 | -5.1843E-08 | 0.0000E+00 | 0.0000E+00 |
| S3 | 5.8305E-06 | 2.3884E-06 | 4.6339E-06 | -1.5384E-07 | 3.1790E-06 | 0.0000E+00 | 0.0000E+00 |
| S4 | -5.1625E-06 | 5.6971E-08 | 2.9917E-07 | 4.9024E-07 | 1.8173E-07 | 4.5065E-06 | 2.0242E-06 |
| S5 | 1.5339E-06 | -2.9898E-05 | -2.5305E-06 | -1.2436E-05 | 1.2103E-06 | -5.0753E-06 | 3.6446E-06 |
| S6 | -1.2303E-04 | -8.5064E-05 | -6.6100E-05 | -2.9237E-05 | -1.7938E-05 | -3.2944E-06 | -4.5216E-06 |
| S7 | -2.5724E-04 | -4.7105E-04 | -2.7694E-04 | -3.1189E-05 | 2.6302E-05 | 2.6844E-05 | 8.6882E-06 |
| S8 | -2.1982E-03 | 1.4419E-04 | 3.6093E-04 | 3.5696E-05 | -1.1304E-04 | 4.9866E-05 | 5.2574E-05 |
| S9 | 1.6047E-03 | -1.0182E-03 | 2.0102E-04 | 2.8978E-04 | -2.7613E-04 | 1.4015E-04 | -2.6610E-05 |
| S10 | 3.1495E-03 | -1.2977E-03 | 4.4269E-04 | -5.3062E-05 | 3.0760E-05 | -3.5970E-05 | -1.0973E-06 |
| S13 | -5.6621E-03 | 1.1380E-03 | 1.8933E-04 | -8.8530E-05 | -5.5554E-04 | 1.1641E-03 | -5.7381E-04 |
TABLE 12-2
Fig. 27 shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 6, which indicates the focus deviation of light rays of different wavelengths after passing through the lens. Fig. 28 shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 6, which represents the deviation of different image heights on the imaging plane after light passes through the lens. Fig. 29 shows an astigmatism curve of the optical imaging lens of embodiment 6, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 30 shows a distortion curve of the optical imaging lens of embodiment 6, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 27 to 30, the optical imaging lens provided in embodiment 6 can achieve good imaging quality.
Example 7
An optical imaging lens according to embodiment 7 of the present application is described below with reference to fig. 31 to 35. Fig. 31 shows a schematic configuration diagram of an optical imaging lens according to embodiment 7 of the present application.
As shown in fig. 31, the optical imaging lens sequentially includes, from an object side to an image side along an optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6.
In this embodiment, the first lens element E1 has negative refractive power, and the object-side surface S1 thereof is concave, while the image-side surface S2 thereof is concave. The second lens element E2 has positive refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is convex. The third lens element E3 has negative refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is concave and an image-side surface S8 thereof is convex. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is convex and an image-side surface S10 thereof is concave. The sixth lens element E6 has negative refractive power, wherein an object-side surface S12 thereof is planar and an image-side surface S13 thereof is concave. On the object side of the sixth lens element E6, the optical imaging lens further includes an infrared filter attached to the sixth lens element E6, wherein the infrared filter has an object side surface S11 and image side surfaces S12, and the object side surfaces S11 and S12 are all planes. The image side surface S12 of the infrared filter is attached to the object side surface S12 of the sixth lens element E6, and the image side surface S12 of the infrared filter and the object side surface S12 form a compound lens. The optical imaging lens also has an imaging surface S14, and light from an object can sequentially pass through the respective surfaces S1 to S13 and finally be imaged on the imaging surface S14.
Table 13 shows basic parameters of the optical imaging lens of example 7, in which the units of radius of curvature, thickness/distance, and effective radius are all millimeters (mm). Tables 14-1 and 14-2 show the higher order coefficients A4、A6、A8、A10、A12、A14、A16、A18、A20、A22、A24、A26、A28 and a 30 that can be used for each of the aspherical mirror faces S1 to S10, S13 in example 7, where each aspherical surface type can be defined by the formula (1) given in example 1 above.
TABLE 13
TABLE 14-1
| Face number | A18 | A20 | A22 | A24 | A26 | A28 | A30 |
| S1 | 2.4842E-06 | 7.3853E-06 | -3.3415E-06 | 1.1068E-06 | -1.8459E-07 | 2.8018E-06 | 1.2881E-06 |
| S2 | -8.8979E-06 | 1.6983E-05 | -6.3523E-06 | 6.4549E-06 | -3.3902E-06 | 4.6319E-06 | -1.3126E-06 |
| S3 | 1.3132E-05 | -1.0585E-06 | 6.8034E-07 | -1.9398E-06 | 1.4045E-07 | -1.7669E-06 | 6.2829E-07 |
| S4 | 9.4260E-05 | 6.2679E-05 | 2.3433E-05 | 1.1887E-05 | -1.7227E-06 | -5.3694E-07 | -2.7566E-06 |
| S5 | 4.5828E-05 | -2.3713E-05 | -4.1040E-05 | -3.3228E-05 | -1.7316E-05 | -7.1625E-06 | -5.5162E-07 |
| S6 | -6.0690E-05 | -4.5676E-05 | -5.1238E-05 | -1.9938E-05 | -1.3859E-05 | -1.4407E-06 | -1.0058E-06 |
| S7 | -5.0395E-05 | -7.9834E-06 | -4.0822E-05 | -1.3172E-05 | -1.2476E-05 | -4.2489E-06 | -8.0807E-07 |
| S8 | -2.0017E-04 | 1.3004E-04 | -6.0537E-05 | 5.8033E-06 | -1.1839E-05 | -7.7854E-06 | 5.7110E-06 |
| S9 | -5.8654E-04 | 3.4651E-04 | -1.0430E-04 | 1.0213E-04 | -3.6322E-05 | -7.9134E-06 | -1.0719E-05 |
| S10 | 2.8326E-03 | -1.4315E-03 | 6.0915E-04 | -1.7451E-04 | 1.0605E-04 | 4.5614E-05 | 4.6671E-05 |
| S13 | -8.4613E-04 | 1.3473E-03 | -1.5805E-05 | -5.2754E-04 | -6.4550E-04 | 9.7512E-04 | -6.3380E-04 |
TABLE 14-2
Fig. 32 shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 7, which indicates the focus deviation of light rays of different wavelengths after passing through the lens. Fig. 33 shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 7, which represents the deviation of different image heights on the imaging plane after light passes through the lens. Fig. 34 shows an astigmatism curve of the optical imaging lens of embodiment 7, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 35 shows a distortion curve of the optical imaging lens of embodiment 7, which represents distortion magnitude values corresponding to different image heights. As can be seen from fig. 32 to 35, the optical imaging lens provided in embodiment 7 can achieve good imaging quality.
Further, in embodiments 1 to 7, effective focal length values f1 to f8 of the respective lenses, effective focal length f of the optical imaging lens, distance TTL from the object side surface of the first lens to the imaging surface of the optical imaging lens along the optical axis, half of the diagonal length ImgH of the effective pixel region on the imaging surface, and the maximum half field angle Semi-FOV of the optical imaging lens are shown in table 15.
| Parameters/embodiments | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| f1(mm) | 5.97 | 5.93 | 5.62 | 4.84 | 5.30 | 3.51 | -7.09 |
| f2(mm) | -16.41 | -16.97 | -19.02 | -8.32 | -12.16 | -8.41 | 2.55 |
| f3(mm) | -41.09 | -34.04 | -20.08 | 23.27 | 98.53 | 31.91 | -11.67 |
| f4(mm) | 23.30 | 16.17 | 12.45 | -13.47 | -30.93 | 3.01 | 1.74 |
| f5(mm) | -8.14 | -8.45 | -8.13 | 9.23 | 6.23 | -2.55 | -2.24 |
| f6(mm) | 6.59 | 3.96 | 5.03 | -34.68 | -5.19 | -22.688 | -8.84 |
| f7(mm) | 60.12 | -4.69 | -7.75 | 11.49 | -320.279 | ||
| f8(mm) | -18.602 | 310.299 | 288.623 | -9.17 | |||
| f(mm) | 5.99 | 5.73 | 5.46 | 5.69 | 6.06 | 3.96 | 2.12 |
| TTL(mm) | 7.29 | 7.26 | 7.00 | 7.22 | 7.20 | 5.13 | 4.79 |
| ImgH(mm) | 5.36 | 5.36 | 5.05 | 5.00 | 5.36 | 3.20 | 2.90 |
| Semi-FOV(°) | 41.25 | 42.25 | 42.07 | 40.43 | 41.08 | 38.17 | 56.72 |
TABLE 15
Examples 1 to 7 each satisfy the conditions shown in table 16.
| Condition/example | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| fi/f/fno | -1.81 | 33.64 | 28.25 | -0.83 | -25.14 | -3.10 | -1.84 |
| ImgH/TTL×Ni | 1.12 | 1.12 | 1.10 | 1.05 | 1.13 | 0.95 | 0.92 |
| (f1-f2)/(f1+f2) | -2.14 | -2.07 | -1.84 | -3.78 | -2.54 | -2.43 | 2.12 |
| (Rj-1-Rj)/(Rj-1+Rj) | 0.02 | 0.68 | 0.35 | -0.30 | -9.58 | 1.44 | 0.49 |
| (R2/R1)-(Rj/Rj-1) | 2.71 | 3.83 | 3.85 | 6.57 | 6.93 | 5.24 | -0.70 |
| ∑CT/ImgH | 0.63 | 0.78 | 0.75 | 0.83 | 0.64 | 0.80 | 1.02 |
| CT1/CTi | 4.45 | 1.57 | 2.82 | 3.40 | 2.87 | 6.87 | 1.91 |
| Tb/CTi | 10.26 | 0.93 | 1.99 | 4.79 | 1.55 | 6.64 | 4.22 |
| CTmax(mm) | 0.89 | 0.99 | 0.79 | 0.88 | 0.80 | 0.69 | 1.01 |
| CTmax/ETmax | 2.14 | 1.58 | 1.34 | 1.10 | 1.14 | 1.12 | 0.95 |
| V40 | 3.00 | 3.00 | 3.00 | 4.00 | 2.00 | 1.00 | 2.00 |
Table 16
The application also provides an imaging device provided with an electron-sensitive element for imaging, which can be a photosensitive coupling element (Charge Coupled Device, CCD) or a complementary metal-oxide-semiconductor element (Complementary Metal Oxide Semiconductor, CMOS). The imaging device may be a stand alone imaging device such as a digital camera or an imaging module integrated on a mobile electronic device such as a cell phone. The imaging device is equipped with the optical imaging lens described above.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the application is not limited to the specific combination of the above technical features, but also encompasses other technical features which may be combined with any combination of the above technical features or their equivalents without departing from the spirit of the application. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
Claims (10)
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