CN112162384A

CN112162384A - Optical imaging system, camera module and electronic device

Info

Publication number: CN112162384A
Application number: CN202011101520.3A
Authority: CN
Inventors: 刘彬彬; 党绪文; 李明; 邹海荣
Original assignee: Jiangxi Jingchao Optical Co Ltd
Current assignee: Jiangxi Jingchao Optical Co Ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-01-01

Abstract

The invention discloses an optical imaging system, a camera module and an electronic device, wherein the optical imaging system comprises a first lens with positive refractive power, a second lens with refractive power, a third lens with refractive power, a fourth lens with refractive power, a fifth lens with negative refractive power and a prism in sequence from an object side to an image side along an optical axis, an object side surface of the first lens is a convex surface near the optical axis, an image side surface of the second lens is a concave surface near the optical axis, an object side surface of the third lens is an aspheric surface, an image side surface of the fourth lens is a convex surface near the optical axis, an image side surface of the fourth lens is a convex surface at the circumference, an object side surface of the fourth lens is an aspheric surface, an image side surface of the fifth lens is a concave surface near the optical axis, and an image side surface of the fifth lens is a convex surface near the optical axis, the object side surface of the fifth lens is spherical, the image side surface of the fifth lens is aspheric, and the prism is arranged at the object side of the first lens.

Description

Optical imaging system, camera module and electronic device

Technical Field

The present invention relates to the field of optical imaging technologies, and in particular, to an optical imaging system, a camera module, and an electronic device.

Background

At present, the long-focus structure of the periscope prism has become the first choice for realizing the multiple magnification effect. The long focal length structure has a larger physical focal length, meaning that a small FNO must have a larger aperture, which limits the FNO's difficulty in reaching. In addition, the size of the image plane is difficult to be greatly improved due to the space limitation of the periscopic module, and the improvement of the image quality and the manufacturability of the micro equipment with the periscopic long-focus structure is limited.

Disclosure of Invention

The embodiment of the invention provides an optical imaging system, a camera module and an electronic device.

An optical imaging system according to an embodiment of the present invention includes, in order from an object side to an image side along an optical axis:

a first lens element with positive refractive power having a convex object-side surface near the optical axis;

a second lens element with refractive power having a concave image-side surface near the optical axis;

the third lens element with refractive power has an aspheric object-side surface and an aspheric image-side surface;

a fourth lens element with refractive power having a convex image-side surface near the optical axis, the fourth lens element having a convex image-side surface at a circumference, the fourth lens element having an aspheric object-side surface, and the fourth lens element having a spherical image-side surface; and

a fifth lens element with negative refractive power having a concave object-side surface near the optical axis, a convex image-side surface near the optical axis, a spherical object-side surface, and an aspheric image-side surface;

the optical imaging system further comprises a prism, and the prism is arranged on the object side of the first lens.

The optical imaging system keeps enough long focal length by balancing the size of the periscope module, reduces the complexity of the surface type, and reasonably distributes the refractive power of the lens, thereby improving the image quality and having good manufacturability.

In certain embodiments, the optical imaging system satisfies the following relationship:

1.1＜f/TTL15＜2.1；

wherein f denotes a focal length of the optical imaging system, and TTL15 denotes a distance on the optical axis between an object-side surface of the first lens and an image-side surface of the fifth lens.

CT34/|R31|＜0.22；

wherein CT34 represents a distance on the optical axis between an image-side surface of the third lens and an object-side surface of the fourth lens, and R31 represents a radius of curvature of the object-side surface of the third lens at the optical axis.

0.66＜SD31/SD52＜1.0；

wherein SD31 represents a vertical distance from the optical axis at the maximum effective diameter of the object-side surface of the third lens, and SD52 represents a vertical distance from the optical axis at the maximum effective diameter of the image-side surface of the fifth lens.

|R41|/|f4|＜4.3；

wherein R41 denotes a radius of curvature of an object side surface of the fourth lens at the optical axis, and f4 denotes a focal length of the fourth lens.

|SAG32|/|SAG41|＜6.3；

wherein SAG32 represents the rise in the sagittal at the maximum effective diameter of the image-side surface of the third lens, and SAG41 represents the rise in the sagittal at the maximum effective diameter of the object-side surface of the fourth lens.

0.7＜ET2/CT2＜1.4；

ET2 represents the distance from the maximum effective diameter of the object-side surface to the maximum effective diameter of the image-side surface of the second lens in the optical axis direction, and CT2 represents the thickness of the second lens in the optical axis direction.

0.7＜(ET1+ET2+ET3)/(CT1+CT2+CT3)＜1.1；

ET1 represents a distance in the optical axis direction from the maximum effective diameter of the object-side surface of the first lens element to the maximum effective diameter of the image-side surface of the first lens element, ET2 represents a distance in the optical axis direction from the maximum effective diameter of the object-side surface of the second lens element to the maximum effective diameter of the image-side surface of the second lens element, ET3 represents a distance in the optical axis direction from the maximum effective diameter of the object-side surface of the third lens element to the maximum effective diameter of the image-side surface of the third lens element, CT1 represents a thickness of the first lens element on the optical axis, CT2 represents a thickness of the second lens element on the optical axis, and CT3 represents a thickness of the third lens element on the optical axis.

(|f4|+|f5|)/|R41|＜30.0；

wherein f4 denotes a focal length of the fourth lens, f5 denotes a focal length of the fifth lens, and R41 denotes a radius of curvature of an object side surface of the fourth lens at the optical axis.

The embodiment of the invention provides a camera module, which comprises:

a photosensitive element; and

in the optical imaging system according to any one of the above embodiments, the photosensitive element is mounted on an image side of the optical imaging system, and the photosensitive element is configured to convert an optical signal that passes through the optical imaging system and reaches the image side into an electrical signal.

The camera module keeps enough long-focus focal length by balancing the size of the periscope module, reduces the complexity of the surface type, reasonably distributes the refractive power of the lens, and accordingly improves the image quality and has good manufacturability.

An electronic device provided by an embodiment of the present invention includes:

a housing; and

the camera module of the above embodiment is mounted on the housing.

The electronic device keeps enough long focal length by balancing the size of the periscope module, reduces the complexity of the surface type, reasonably distributes the refractive power of the lens, and accordingly improves the image quality and has good manufacturability.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an optical imaging system according to a first embodiment of the present invention;

FIG. 2 is a schematic view of another optical imaging system according to a first embodiment of the present invention;

FIG. 3A is a spherical aberration diagram (mm) of an optical imaging system according to a first embodiment of the invention;

fig. 3B is an astigmatism diagram (mm) of the optical imaging system according to the first embodiment of the invention;

fig. 3C is a distortion diagram (%) of the optical imaging system according to the first embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an optical imaging system according to a second embodiment of the present invention;

FIG. 5 is another schematic structural diagram of an optical imaging system according to a second embodiment of the present invention;

FIG. 6A is a spherical aberration diagram (mm) of an optical imaging system according to a second embodiment of the present invention;

fig. 6B is an astigmatism diagram (mm) of an optical imaging system according to a second embodiment of the present invention;

fig. 6C is a distortion map (%) of the optical imaging system of the second embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an optical imaging system according to a third embodiment of the present invention;

fig. 8 is another schematic structural view of an optical imaging system according to a third embodiment of the present invention;

FIG. 9A is a spherical aberration diagram (mm) of an optical imaging system according to a third embodiment of the present invention;

fig. 9B is an astigmatism diagram (mm) of an optical imaging system according to a third embodiment of the present invention;

fig. 9C is a distortion map (%) of the optical imaging system of the third embodiment of the present invention;

FIG. 10 is a schematic structural diagram of an optical imaging system according to a fourth embodiment of the present invention;

fig. 11 is another schematic structural view of an optical imaging system according to a fourth embodiment of the present invention;

FIG. 12A is a spherical aberration diagram (mm) of an optical imaging system according to a fourth embodiment of the present invention;

fig. 12B is an astigmatism diagram (mm) of an optical imaging system according to a fourth embodiment of the present invention;

fig. 12C is a distortion map (%) of the optical imaging system of the fourth embodiment of the present invention;

fig. 13 is a schematic structural view of an optical imaging system according to a fifth embodiment of the present invention;

fig. 14 is another schematic structural view of an optical imaging system according to a fifth embodiment of the present invention;

FIG. 15A is a spherical aberration diagram (mm) of an optical imaging system according to a fifth embodiment of the present invention;

fig. 15B is an astigmatism diagram (mm) of an optical imaging system of embodiment five of the present invention;

fig. 15C is a distortion map (%) of the optical imaging system of the fifth embodiment of the present invention;

fig. 16 is a schematic structural view of an optical imaging system according to a sixth embodiment of the present invention;

fig. 17 is another schematic structural view of an optical imaging system according to a sixth embodiment of the present invention;

FIG. 18A is a spherical aberration diagram (mm) of an optical imaging system according to a sixth embodiment of the present invention;

fig. 18B is an astigmatism diagram (mm) of an optical imaging system of a sixth embodiment of the present invention;

fig. 18C is a distortion map (%) of the optical imaging system according to the sixth embodiment of the present invention;

fig. 19 is a schematic configuration diagram of an optical imaging system according to a seventh embodiment of the present invention;

fig. 20 is another schematic structural view of an optical imaging system according to a seventh embodiment of the present invention;

FIG. 21A is a spherical aberration diagram (mm) of an optical imaging system according to a seventh embodiment of the present invention;

fig. 21B is an astigmatism diagram (mm) of an optical imaging system of a seventh embodiment of the present invention;

fig. 21C is a distortion map (%) of the optical imaging system according to the seventh embodiment of the present invention;

fig. 22 is a schematic structural view of an optical imaging system according to an eighth embodiment of the present invention;

fig. 23 is another schematic structural view of an optical imaging system according to an eighth embodiment of the present invention;

fig. 24A is a spherical aberration diagram (mm) of an optical imaging system of embodiment eight of the present invention;

fig. 24B is an astigmatism diagram (mm) of an optical imaging system according to embodiment eight of the present invention;

fig. 24C is a distortion map (%) of the optical imaging system of embodiment eight of the present invention;

FIG. 25 is a schematic structural diagram of an optical imaging system according to a ninth embodiment of the present invention;

FIG. 26 is a schematic view of another optical imaging system according to the ninth embodiment of the present invention;

FIG. 27A is a spherical aberration diagram (mm) of an optical imaging system according to example nine of the present invention;

fig. 27B is an astigmatism diagram (mm) of an optical imaging system of embodiment nine of the present invention;

fig. 27C is a distortion map (%) of the optical imaging system of embodiment nine of the present invention;

fig. 28 is a schematic configuration diagram of an optical imaging system of a tenth embodiment of the invention;

fig. 29 is another schematic configuration diagram of an optical imaging system according to a tenth embodiment of the present invention;

fig. 30A is a spherical aberration diagram (mm) of an optical imaging system of a tenth embodiment of the invention;

fig. 30B is an astigmatism diagram (mm) of an optical imaging system of embodiment ten of the present invention;

fig. 30C is a distortion map (%) of an optical imaging system of embodiment ten of the present invention;

FIG. 31 is a block diagram of a camera module according to an embodiment of the present invention;

FIG. 32 is a schematic structural diagram of an electronic device according to an embodiment of the invention;

fig. 33 is a block diagram of an electronic device according to an embodiment of the present invention.

Description of the main element symbols:

the device comprises an optical imaging system 10, a prism 11, a diaphragm 13 and an infrared filter 15;

an electronic device 20;

a vehicle 100.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more than two unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The disclosure herein provides many different embodiments or examples for implementing different configurations of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 to 30, in an optical imaging system 10 according to an embodiment of the present invention, in order from an object side to an image side along an optical axis L, the optical imaging system 10 includes a first lens element L1 with positive refractive power, a second lens element L2 with refractive power, a third lens element L3 with refractive power, a fourth lens element L4 with refractive power, and a fifth lens element L5 with negative refractive power. The object-side surface of the first lens L1 is convex near the optical axis L. The image-side surface of the second lens L2 is concave near the optical axis L. The object-side surface of the third lens element L3 is aspheric, and the image-side surface of the third lens element L3 is aspheric. The image-side surface of the fourth lens element L4 is convex near the optical axis L, the image-side surface of the fourth lens element L4 is convex at its circumference, the object-side surface of the fourth lens element L4 is aspheric, and the image-side surface of the fourth lens element L4 is spherical. The object-side surface of the fifth lens element L5 is concave near the optical axis L, the image-side surface of the fifth lens element L5 is convex near the optical axis L, the object-side surface of the fifth lens element L5 is spherical, and the image-side surface of the fifth lens element L5 is aspheric. The optical imaging system 10 further includes a prism 11, and the prism 11 is disposed on the object side of the first lens L1.

The optical imaging system 10 provides a large aperture and an effective imaging circle diameter by balancing the size of the periscopic module, the FNO, the image surface size and the volume of the optical system, keeps enough telephoto focal length, reduces the complexity of the surface type, and reasonably distributes the refractive power of the lens, thereby improving the image quality and having good manufacturability.

In certain embodiments, the optical imaging system 10 satisfies the following relationship: f/TTL15 is more than 1.1 and less than 2.1; where f denotes a focal length of the optical imaging system 10, and TTL15 denotes a distance on the optical axis L between the object-side surface of the first lens L1 and the image-side surface of the fifth lens L5.

Specifically, in some embodiments, the focal length f (mm) of the optical imaging system 10 is in the range of [8.4,10.5 ]. By using a 43mm framing lens equivalent, the equivalent focal length of the optical imaging system 10 can reach 78.5-98.2 mm. Thus, compared with the conventional 24mm focal length lens, the zoom lens has the magnifying effect of about 3.3-4.1 times, is more suitable for the shooting scene of the portrait, and is easier to shoot a close-up picture of a person at a reasonable object distance.

TTL15 reflects the real optical lens footprint. Specifically, in some embodiments, TTL15(mm) is in the range of [4.33,7.87], which can maintain superior performance and reduce the size of the optical imaging system 10. In one embodiment, TTL15 is 4.33 mm. Therefore, the length of the optical imaging system 10 in the lens module can be greatly reduced, the arrangement of lens bearing is more facilitated, the movement of a power component (such as a motor) externally used for adjusting the optical imaging system 10 is facilitated, and the focusing requirements under different object distances are met.

Specifically, in some embodiments, f/TTL15 can take on values of 1.631, 1.592, 1.605, 1.518, 1.457, 1.432, 1.247, 1.584, 2.079, 1.144, and any other value greater than 1.1 and less than 2.1.

In certain embodiments, the optical imaging system 10 satisfies the following relationship: CT34/| R31| < 0.22; where CT34 denotes a distance on the optical axis L between the image-side surface of the third lens L3 and the object-side surface of the fourth lens L4, and R31 denotes a radius of curvature of the object-side surface of the third lens L3 at the optical axis L.

Thus, by defining the above relation, the change of the distance between the third lens L3 and the fourth lens L4 is adjusted to match the change of the curvature radius of the third lens L3, so that the volume of the optical imaging system 10 can be further reduced, which is helpful for reducing the thickness of the lens module.

Specifically, in some embodiments, CT34/| R31| can take on values of 0.216, 0.174, 0.105, 0.075, 0.061, 0.079, 0.078, 0.092, 0.081, 0.120, and any other value less than 0.22.

In addition, the third lens L3 has fewer aspheric order numbers, so that the complexity of curved surface change is reduced, the surface type is simpler, the lens has good compression molding property, the molding difficulty is low, and the practicability is high.

In addition, it can be understood that, in the case of exceeding the limited range of the above relation (i.e. CT34/| R31| ≧ 0.22), the molding condition of the lens is affected, so that it is difficult to obtain a good balance in the distribution of lens aberration, which is not favorable for reducing tolerance sensitivity, and further, the production yield of the actual product is reduced.

In certain embodiments, the optical imaging system 10 satisfies the following relationship: 0.66 < SD31/SD52 < 1.0; where SD31 denotes a vertical distance from the optical axis L at the maximum effective diameter of the object-side surface of the third lens L3, and SD52 denotes a vertical distance from the optical axis L at the maximum effective diameter of the image-side surface of the fifth lens L5.

Thus, by defining the above relation, the optical path of the normal incidence can be deflected by 90 °, so that the optical imaging system 10 can be transversely placed in a micro device (such as a micro camera).

Specifically, in some embodiments, SD31/SD52 can take on values of 0.756, 0.744, 0.760, 0.758, 0.739, 0.667, 0.720, 0.909, 0.991, 0.772, and any other value greater than 0.66 and less than 1.0.

The aperture of the lens determines the thickness of the optical imaging system 10. In some embodiments, the lens aperture has a value in the range of [1.4,2.22 ]. The vertical distance from the maximum effective diameter of a certain side of the lens to the optical axis L can be understood as the aperture of the lens, and the reasonable aperture of the lens can prevent the optical imaging system 10 from occupying a larger volume due to the oversized lens. In the case where the aperture of the third lens L3 is smaller than the aperture of the fifth lens L5, marginal rays can be incident on the image plane at an appropriate incident angle, which is advantageous for correction of peripheral field aberration.

In addition, by arranging the diaphragm 13 in the front, the relationship between the size of the imaging circle, fno and the aperture of the lens can be fully balanced, so that fno can be amplified to 2.64, sufficient incident light is provided, and the improvement of image quality is facilitated.

In certain embodiments, the optical imaging system 10 satisfies the following relationship: i R41I/I f 4I < 4.3; where R41 denotes a radius of curvature of the object-side surface of the fourth lens L4 at the optical axis L, and f4 denotes a focal length of the fourth lens L4.

In this way, by limiting the above relation, the focal length of the fourth lens element L4 is adjusted in a positive-negative variation manner, and the design of the optical imaging system 10 can be made more flexible by matching the distribution of the focal lengths of the front lens group (i.e., the first lens element L1, the second lens element L2, and the third lens element L3).

Specifically, in some embodiments, | R41|/| f4| can take on values of 0.978, 0.951, 0.945, 0.843, 0.913, 4.239, 0.265, 0.036, 0.331, 0.377, and other arbitrary numbers less than 4.3.

In addition, the object-side surface of the fourth lens element L4 is aspheric, and the image-side surface of the fourth lens element L4 is spherical, so that the complexity of the surface shape can be reduced, the optical imaging system 10 can obtain a good aberration balance effect, and can be controlled at a reasonable level on high-order aberrations, and the tolerance distribution is easier.

In addition, it is understood that, beyond the limited range of the above relation (i.e., | R41|/| f4| ≧ 4.3), it is difficult for the fourth lens L4 to obtain a small bending effect, and it is also difficult for each field of view ray to enter and exit at a small angle on the fourth lens L4, and a small ray angle deviation has a large loss of reflection energy, so that the image plane cannot obtain better relative brightness.

In certain embodiments, the optical imaging system 10 satisfies the following relationship: i SAG 32I/I SAG 41I < 6.3; where SAG32 denotes the rise of the SAGs at the maximum effective diameter of the image-side surface of the third lens L3, and SAG41 denotes the rise of the SAGs at the maximum effective diameter of the object-side surface of the fourth lens L4.

Therefore, through the limitation of the relational expression, the problems of large light deflection angle and high forming difficulty caused by excessive bending of the lens can be avoided, so that the reasonable bending condition of the lens can be kept, the focal length distribution of each lens is facilitated, the reasonable deflection angle of the light is provided, the concentration of primary aberration on a certain lens is reduced, and the adjustment of tolerance sensitivity to a reasonable range is facilitated. In one embodiment, the rise of the fourth lens L4 of the third lens L3 is less than 0.55.

Specifically, in some embodiments, | SAG32|/| SAG41| can take on values of 1.887, 1.607, 1.530, 1.225, 1.654, 2.044, 6.254, 0.121, 0.014, 0.289, and others, any number less than 6.3.

Furthermore, it is understood that, beyond the limited range of the above relation (i.e. | SAG32|/| SAG41| ≧ 6.3), the degree of curvature of the third lens L3 and the fourth lens L4 is unfavorable for matching, so that it is difficult for the fourth lens L4 of the third lens L3 to well balance the primary aberrations such as spherical aberration and coma caused by the front lens group (i.e. the first lens L1, the second lens L2 and the third lens L3), which is unfavorable for reasonable distribution of refractive power between the lenses, and is also unfavorable for improving image quality and reducing tolerance sensitivity.

In certain embodiments, the optical imaging system 10 satisfies the following relationship: 0.7 < ET2/CT2 < 1.4; ET2 denotes a distance from the maximum effective diameter of the object-side surface to the maximum effective diameter of the image-side surface of the second lens L2 in the direction of the optical axis L, and CT2 denotes a thickness of the second lens L2 in the direction of the optical axis L.

It is understood that ET2/CT2 represents the thickness-to-thickness ratio of the second lens L2. Specifically, the larger the thickness-to-thickness ratio, the higher the lens molding difficulty and the greater the manufacturing risk. In the case where the thickness-to-thickness ratio is less than 1.4, a large difference between the center thickness and the edge thickness of the lens can be made. In this way, the second lens L2 has good manufacturable characteristics and molding conditions due to the definition of the above relational expression, and the manufacturing risk is low.

Specifically, in some embodiments, ET2/CT2 can take on values of 1.273, 1.340, 1.337, 1.381, 1.375, 1.363, 1.286, 0.714, 0.958, 1.350, and any other value greater than 0.7 and less than 1.4.

In addition, in the case that the aperture of the second lens L2 is slightly smaller than the aperture of the first lens L1, the marginal rays passing through the periphery of the aperture stop can be compressed, so that the rear lens group (i.e. the fourth lens L4 and the fifth lens L5) can be further deflected, and tolerance sensitivity can be controlled.

In addition, it can be understood that, if the limitation range of the above relation is exceeded (i.e. ET2/CT2 is less than or equal to 0.7, or ET2/CT2 is greater than or equal to 1.4), the degree of curvature of the second lens L2 is greater, and the amount of the introduced primary aberration is greater when the first lens L1 is matched, which is not favorable for performing aberration balance and obtaining better resolving power.

In certain embodiments, the optical imaging system 10 satisfies the following relationship:

0.7 < (ET1+ ET2+ ET3)/(CT1+ CT2+ CT3) < 1.1; ET1 represents the distance in the direction of the optical axis L from the maximum effective diameter of the object-side surface of the first lens L1 to the maximum effective diameter of the image-side surface, ET2 represents the distance in the direction of the optical axis L from the maximum effective diameter of the object-side surface of the second lens L2 to the maximum effective diameter of the image-side surface, ET3 represents the distance in the direction of the optical axis L from the maximum effective diameter of the object-side surface of the third lens L3 to the maximum effective diameter of the image-side surface, CT1 represents the thickness of the first lens L1 on the optical axis L, CT2 represents the thickness of the second lens L2 on the optical axis L, and CT3 represents the thickness of the third lens L3 on the optical axis L.

Thus, by defining the above relationship, the edge thicknesses of the first lens L1, the second lens L2 and the third lens L3 are slightly larger than the center thickness, so that the overall positive lens has a tendency of contracting inward after passing through the first lens L1, the second lens L2 and the third lens L3, which is favorable for the expansion of the light in the rear lens group (i.e. the fourth lens L4 and the fifth lens L5).

Specifically, in some embodiments, (ET1+ ET2+ ET3)/(CT1+ CT2+ CT3) may take on values of 0.921, 0.931, 0.929, 0.977, 1.002, 0.852, 0.826, 0.748, 0.728, 0.807, and any other value greater than 0.7 and less than 1.1. When the value of (ET1+ ET2+ ET3)/(CT1+ CT2+ CT3) is equal to about 0.9, the first lens L1, the second lens L2, and the third lens L3 have a low shape complexity and a reasonable thickness-to-thickness ratio.

Furthermore, it is understood that, beyond the limit of the above relation (i.e., (ET1+ ET2+ ET3)/(CT1+ CT2+ CT3) ≦ 0.7, or (ET1+ ET2+ ET3)/(CT1+ CT2+ CT3) ≧ 1.1), the first lens L1, the second lens L2, and the third lens L3 are difficult to have good molding conditions, are not favorable for matching the spacing therebetween reasonably, and are not favorable for subsequent production assembly.

In certain embodiments, the optical imaging system 10 satisfies the following relationship: (| f4| + | f5|)/| R41| < 30.0; where f4 denotes a focal length of the fourth lens L4, f5 denotes a focal length of the fifth lens L5, and R41 denotes a radius of curvature of the object-side surface of the fourth lens L4 at the optical axis L.

Thus, by limiting the above relation, when the fourth lens L4 and the fifth lens L5 have different effective refractive indexes, the fourth lens L4 and the fifth lens L5 are matched reasonably, and a plurality of lens matching combinations can be generated by matching the front lens group, so that various requirements of long focus, high image quality and reasonable tolerance can be met.

Specifically, in some embodiments, (| f4| + | f5|)/| R41| can take on values of 3.608, 3.803, 3.864, 5.333, 6.147, 0.416, 6.112, 29.115, 6.617, 7.279, and any other value less than 30.0.

In addition, the fourth lens L4 and the fifth lens L5 are both designed to have aspheric surfaces and spherical surfaces, so that the surface shape is simple and has good manufacturability.

In addition, it is understood that, in the case of exceeding the limited range of the above relation (i.e., (| f4| + | f5|)/| R41| ≧ 30.0), the fourth lens L4 and the fifth lens L5 are difficult to deflect the marginal ray at an appropriate angle, which is disadvantageous for reducing ghost flare, balancing aberration, and improving the overall imaging quality.

In addition, in the embodiment of the present invention, the surface shape of the aspherical surface is determined by the following formula:

wherein h is the height from any point on the aspheric surface to the optical axis, c is the vertex curvature, k is the conic constant, and Ai is the correction coefficient of the i-th order of the aspheric surface.

The present invention will be described in detail by the following specific embodiments with reference to the attached drawings.

The first embodiment is as follows:

referring to fig. 1 to fig. 3, fig. 2 is a schematic structural diagram of the optical imaging system 10 taken along the Y-axis forward direction in fig. 1. In the optical imaging system 10 of the present embodiment, the prism 11, the stop 13, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the infrared filter 15 are included from the object side to the image side.

The first lens element L1 with positive refractive power has a convex object-side surface S11 and a convex image-side surface S12, and both S11 and S12 are aspheric. The second lens element L2 with negative refractive power has a convex object-side surface S21 and a concave image-side surface S22, and both S21 and S22 are aspheric. The third lens element L3 with negative refractive power has a convex object-side surface S31 and a concave image-side surface S32, and both S31 and S32 are aspheric. The fourth lens element L4 with positive refractive power has a convex object-side surface S41, a convex image-side surface S42, an aspheric surface S41, and a spherical surface S42. The fifth lens element L5 with negative refractive power has a concave object-side surface S51, a convex image-side surface S52, a spherical surface S51 and an aspheric surface S52.

In the first embodiment, the f-number fno of the optical imaging system 10 is 2.64, the field angle range FOV of the optical imaging system 10 is 25 °, the total system length TTL of the optical imaging system 10 is 9.93mm, and the focal length f of the optical imaging system 10 is 10.18 mm.

The distance TTL15 on the optical axis L of the object-side surface S11 of the first lens L1 and the image-side surface S52 of the fifth lens L5 is 6.24mm, the distance CT34 on the optical axis L of the image-side surface S32 of the third lens L3 and the object-side surface S41 of the fourth lens L4 is 1.17mm, the radius of curvature R31 on the optical axis L of the object-side surface of the third lens L3 is 5.43mm, the perpendicular distance SD3 on the optical axis L of the maximum effective diameter of the object-side surface of the third lens L3 is 1.46mm, the perpendicular distance SD3 on the maximum effective diameter of the image-side surface of the fifth lens L3 on the optical axis L is 1.93mm, the radius of curvature R3 on the object-side surface of the fourth lens L3 on the optical axis L is 7.09mm, the focal length 3 f 3 of the fourth lens L3 is 3mm, the maximum effective diameter S3 mm of the focal length S3 of the image-side surface S3 is 3mm, the maximum effective diameter of the radius SAG 3mm of the fourth lens L3 mm, the maximum effective diameter of the radius SAG 3mm of the focal length S3 mm of the fourth lens L3 is 3mm, the maximum effective diameter of the focal length 3mm, the thickness ET2 of the second lens L2 at the maximum effective diameter is 1.01mm, the thickness ET3 of the third lens L3 at the maximum effective diameter is 0.63mm, the thickness CT1 of the first lens L1 on the optical axis L is 1.94mm, the thickness CT2 of the second lens L2 on the optical axis L is 0.79mm, the thickness CT3 of the third lens L3 on the optical axis L is 0.40mm, and the focal length f5 of the fifth lens L5 is-18.3473 mm.

The optical imaging system 10 also satisfies the conditions of the following table:

TABLE 1

TABLE 2

Fig. 3A, 3B, and 3C are a spherical aberration graph, an astigmatism graph, and a distortion graph, respectively, in the first embodiment.

The abscissa of the spherical aberration graph represents the focus offset, and the ordinate represents the normalized field of view, and when the wavelengths given in fig. 3A are 656.2725nm, 587.5618nm, 546.0740nm, 486.1327nm, and 435.8343nm, respectively, the focus offsets of different fields of view are all within ± 0.05mm, which indicates that the optical imaging system 10 in this embodiment has small spherical aberration and good imaging quality.

The abscissa of the astigmatism graph represents the focus offset, and the ordinate represents the image height, and the astigmatism curve shown in fig. 3B represents that the focus offsets of the sagittal image plane and the meridional image plane are both within ± 0.05mm when the wavelength is 546.0740nm, which indicates that the optical imaging system 10 in this embodiment has small astigmatism and good imaging quality.

The abscissa of the distortion curve represents the distortion rate, and the ordinate represents the image height, and the distortion curve given in fig. 3C represents that the distortion is within ± 2.5% when the wavelength is 546.0740nm, which indicates that the distortion of the optical imaging system 10 in this embodiment is better corrected and the imaging quality is better.

As can be seen from fig. 3, the optical imaging system 10 according to the first embodiment can achieve good imaging effect.

In the embodiment shown in fig. 1 and 2, the light beam on the object side enters the prism 11 in the direction perpendicular to the optical axis L, so that the light beam enters the first lens L1 in the direction parallel to the optical axis L, and passes through the second lens L2, the third lens L3, the fourth lens L4 and the fifth lens L5 in sequence in the direction of the optical axis L, and finally reaches the image side of the optical imaging system 10. It is understood that by adjusting the angle of the reflection surface of the prism 11 to the light, the light with the object side at other angles to the direction of the optical axis L can be incident on the prism 11, and finally can be incident on the first lens L1 in the direction parallel to the optical axis L. The specific principles of other embodiments can be referred to the above embodiments and will not be expanded in detail here.

Example two:

referring to fig. 4 to fig. 6, fig. 5 is a schematic structural diagram of the optical imaging system 10 obtained along the Y-axis forward direction in fig. 4. In the optical imaging system 10 of the present embodiment, the prism 11, the stop 13, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the infrared filter 15 are included from the object side to the image side.

In the second embodiment, the f-number fno of the optical imaging system 10 is 2.64, the field angle range FOV of the optical imaging system 10 is 26.26 °, the total system length TTL of the optical imaging system 10 is 9.58mm, and the focal length f of the optical imaging system 10 is 9.68 mm.

The distance TTL15 on the optical axis L of the object-side surface S11 of the first lens L1 and the image-side surface S52 of the fifth lens L5 is 6.08mm, the distance CT34 on the optical axis L of the image-side surface S32 of the third lens L3 and the object-side surface S41 of the fourth lens L4 is 0.99mm, the radius of curvature R31 on the optical axis L of the object-side surface of the third lens L3 is 5.67mm, the perpendicular distance SD3 on the optical axis L of the maximum effective diameter of the object-side surface of the third lens L3 is 1.43mm, the perpendicular distance SD3 on the maximum effective diameter of the image-side surface of the fifth lens L3 on the optical axis L is 1.93mm, the radius of curvature R3 on the object-side surface of the fourth lens L3 on the optical axis L is 6.55mm, the focal length 3 of the image-side surface S3 of the fourth lens L3 is 6.72 mm, the maximum effective diameter S3 mm of the image-side surface S3 of the fourth lens L3 is 3mm, the maximum effective diameter SAG 3mm of the focal length S3 mm of the maximum effective diameter of the fourth lens L3 mm, the thickness ET2 of the second lens L2 at the maximum effective diameter is 1.02mm, the thickness ET3 of the third lens L3 at the maximum effective diameter is 0.61mm, the thickness CT1 of the first lens L1 on the optical axis L is 1.90mm, the thickness CT2 of the second lens L2 on the optical axis L is 0.76mm, the thickness CT3 of the third lens L3 on the optical axis L is 0.40mm, and the focal length f5 of the fifth lens L5 is-18.0138 mm.

TABLE 3

TABLE 4

Fig. 6A, 6B, and 6C are a spherical aberration graph, an astigmatism graph, and a distortion graph, respectively, in the second embodiment.

The abscissa of the spherical aberration graph represents the focus offset, and the ordinate represents the normalized field of view, and when the wavelengths given in fig. 6A are 656.2725nm, 587.5618nm, 546.0740nm, 486.1327nm, and 435.8343nm, respectively, the focus offsets of different fields of view are all within ± 0.05mm, which indicates that the optical imaging system 10 in this embodiment has small spherical aberration and good imaging quality.

The abscissa of the astigmatism graph represents the focus offset, and the ordinate represents the image height, and the astigmatism curve shown in fig. 6B represents that the focus offsets of the sagittal image plane and the meridional image plane are both within ± 0.05mm when the wavelength is 546.0740nm, which indicates that the optical imaging system 10 in this embodiment has less astigmatism and better imaging quality.

The abscissa of the distortion curve represents the distortion rate, and the ordinate represents the image height, and the distortion curve given in fig. 6C represents that the distortion is within ± 2.5% when the wavelength is 546.0740nm, which indicates that the distortion of the optical imaging system 10 in this embodiment is better corrected and the imaging quality is better.

As can be seen from fig. 6, the optical imaging system 10 according to the second embodiment can achieve good imaging effect.

Example three:

referring to fig. 7 to 9, fig. 8 is a schematic structural diagram of the optical imaging system 10 taken along the Y-axis forward direction in fig. 7. In the optical imaging system 10 of the present embodiment, the prism 11, the stop 13, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the infrared filter 15 are included from the object side to the image side.

In the third embodiment, the f-number fno of the optical imaging system 10 is 2.60, the field angle range FOV of the optical imaging system 10 is 26.25 °, the total system length TTL of the optical imaging system 10 is 9.53mm, and the focal length f of the optical imaging system 10 is 9.69 mm.

The distance TTL15 on the optical axis L of the object-side surface S11 of the first lens L1 and the image-side surface S52 of the fifth lens L5 is 6.04mm, the distance CT34 on the optical axis L of the image-side surface S32 of the third lens L3 and the object-side surface S41 of the fourth lens L4 is 0.81mm, the radius of curvature R31 on the optical axis L of the object-side surface of the third lens L3 is 7.71mm, the perpendicular distance SD3 from the optical axis L at the maximum effective diameter of the object-side surface of the third lens L3 is 1.42mm, the perpendicular distance SD3 from the optical axis L at the maximum effective diameter of the image-side surface of the fifth lens L3 is 1.87mm, the radius of curvature R3 mm at the optical axis L of the object-side surface of the fourth lens L3 is 6.43mm, the focal length 3 f 3mm of the fourth lens L3 is 6.72 mm, the maximum effective diameter S3 mm of the image-side surface S3 at the maximum effective diameter of the third lens L3 mm, the maximum effective diameter of the sagl 3mm, the radius sagl 3mm at the maximum effective diameter of the fourth lens L3 mm, the focal length S3 mm is 3mm, the maximum effective diameter of the third lens L3 mm, the maximum effective diameter of the sagl 3, the thickness ET2 of the second lens L2 at the maximum effective diameter is 0.98mm, the thickness ET3 of the third lens L3 at the maximum effective diameter is 0.73mm, the thickness CT1 of the first lens L1 on the optical axis L is 1.86mm, the thickness CT2 of the second lens L2 on the optical axis L is 0.73mm, the thickness CT3 of the third lens L3 on the optical axis L is 0.50mm, and the focal length f5 of the fifth lens L5 is-18.0350 mm.

TABLE 5

TABLE 6

Fig. 9A, 9B, and 9C are a spherical aberration graph, an astigmatism graph, and a distortion graph, respectively, in the third embodiment.

The abscissa of the spherical aberration graph represents the focus offset, and the ordinate represents the normalized field of view, and when the wavelengths given in fig. 9A are 656.2725nm, 587.5618nm, 546.0740nm, 486.1327nm, and 435.8343nm, respectively, the focus offsets of different fields of view are all within ± 0.05mm, which indicates that the optical imaging system 10 in this embodiment has small spherical aberration and good imaging quality.

The abscissa of the astigmatism graph represents the focus offset, and the ordinate represents the image height, and the astigmatism curve given in fig. 9B represents that the focus offsets of the sagittal image plane and the meridional image plane are both within ± 0.05mm when the wavelength is 546.0740nm, which indicates that the optical imaging system 10 in this embodiment has small astigmatism and good imaging quality.

The abscissa of the distortion curve represents the distortion rate, and the ordinate represents the image height, and the distortion curve given in fig. 9C represents that the distortion is within ± 2.5% when the wavelength is 546.0740nm, which indicates that the distortion of the optical imaging system 10 in this embodiment is better corrected and the imaging quality is better.

As can be seen from fig. 9, the optical imaging system 10 according to the third embodiment can achieve good imaging effect.

Example four:

referring to fig. 10 to 12, fig. 11 is a schematic structural diagram of the optical imaging system 10 taken along the Y-axis forward direction in fig. 10. In the optical imaging system 10 of the present embodiment, the prism 11, the stop 13, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the infrared filter 15 are included from the object side to the image side.

In the fourth embodiment, the f-number fno of the optical imaging system 10 is 2.64, the field angle range FOV of the optical imaging system 10 is 28.59 °, the total system length TTL of the optical imaging system 10 is 9.15mm, and the focal length f of the optical imaging system 10 is 8.88 mm.

The distance TTL15 on the optical axis L of the object-side surface S11 of the first lens L1 and the image-side surface S52 of the fifth lens L5 is 5.85mm, the distance CT34 on the optical axis L of the image-side surface S32 of the third lens L3 and the object-side surface S41 of the fourth lens L4 is 0.47mm, the radius of curvature R31 on the optical axis L of the object-side surface of the third lens L3 is 6.27mm, the perpendicular distance SD3 on the optical axis L of the maximum effective diameter of the object-side surface of the third lens L3 is 1.41mm, the perpendicular distance SD3 on the maximum effective diameter of the image-side surface of the fifth lens L3 on the optical axis L is 1.86mm, the radius of curvature R3 on the object-side surface of the fourth lens L3 on the optical axis L is 4.35mm, the focal length 3 of the maximum effective diameter S3 of the fourth lens L3 is 3mm, the maximum effective diameter S3 mm of the focal length S3 of the third lens L3 is 3mm, the maximum effective diameter of the focal length S3 mm of the maximum effective diameter of the fourth lens L3 mm, the focal length S3 mm of the maximum effective diameter of the focal length of the sagl 3mm of the third lens L3 is 3mm, the maximum effective diameter of the maximum sagl, the thickness ET2 of the second lens L2 at the maximum effective diameter is 0.99mm, the thickness ET3 of the third lens L3 at the maximum effective diameter is 0.87mm, the thickness CT1 of the first lens L1 on the optical axis L is 1.81mm, the thickness CT2 of the second lens L2 on the optical axis L is 0.72mm, the thickness CT3 of the third lens L3 on the optical axis L is 0.60mm, and the focal length f5 of the fifth lens L5 is-18.0447 mm.

TABLE 7

TABLE 8

Fig. 12A, 12B, and 12C are a spherical aberration graph, an astigmatism graph, and a distortion graph, respectively, in the fourth embodiment.

The abscissa of the spherical aberration graph represents the focus offset, and the ordinate represents the normalized field of view, and when the wavelengths given in fig. 12A are 656.2725nm, 587.5618nm, 546.0740nm, 486.1327nm, and 435.8343nm, respectively, the focus offsets of different fields of view are all within ± 0.05mm, which indicates that the optical imaging system 10 in this embodiment has small spherical aberration and good imaging quality.

The abscissa of the astigmatism graph represents the focus offset, and the ordinate represents the image height, and the astigmatism curve shown in fig. 12B represents that the focus offsets of the sagittal image plane and the meridional image plane are both within ± 0.05mm when the wavelength is 546.0740nm, which indicates that the optical imaging system 10 in this embodiment has less astigmatism and better imaging quality.

The abscissa of the distortion curve represents the distortion rate, and the ordinate represents the image height, and the distortion curve given in fig. 12C represents that the distortion is within ± 2.5% when the wavelength is 546.0740nm, which indicates that the distortion of the optical imaging system 10 in this embodiment is better corrected and the imaging quality is better.

As can be seen from fig. 12, the optical imaging system 10 according to the fourth embodiment can achieve good imaging effect.

Example five:

referring to fig. 13 to fig. 15, fig. 14 is a schematic structural diagram of the optical imaging system 10 taken along the Y-axis forward direction in fig. 13. In the optical imaging system 10 of the present embodiment, the prism 11, the stop 13, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the infrared filter 15 are included from the object side to the image side.

In the fifth embodiment, the f-number fno of the optical imaging system 10 is 2.70, the field angle range FOV of the optical imaging system 10 is 30.70 °, the total system length TTL of the optical imaging system 10 is 8.92mm, and the focal length f of the optical imaging system 10 is 8.40 mm.

The distance TTL15 on the optical axis L of the object-side surface S11 of the first lens L1 and the image-side surface S52 of the fifth lens L5 is 5.77mm, the distance CT34 on the optical axis L of the image-side surface S32 of the third lens L3 and the object-side surface S41 of the fourth lens L4 is 0.36mm, the radius of curvature R31 on the optical axis L of the object-side surface of the third lens L3 is 5.80mm, the perpendicular distance SD3 on the optical axis L of the maximum effective diameter of the object-side surface of the third lens L3 is 1.40mm, the perpendicular distance SD3 on the maximum effective diameter of the image-side surface of the fifth lens L3 on the optical axis L is 1.90mm, the radius of curvature R3 on the object-side surface of the fourth lens L3 on the optical axis L is 4.47mm, the focal length 3 of the image-side surface S3 of the fourth lens L3 is 3mm, the maximum effective diameter of the focal length S3 mm of the focal length SAG 3mm, the maximum effective diameter of the focal length S3 mm of the third lens L3 mm, the thickness ET2 of the second lens L2 at the maximum effective diameter is 0.99mm, the thickness ET3 of the third lens L3 at the maximum effective diameter is 0.90mm, the thickness CT1 of the first lens L1 on the optical axis L is 1.76mm, the thickness CT2 of the second lens L2 on the optical axis L is 0.72mm, the thickness CT3 of the third lens L3 on the optical axis L is 0.62mm, and the focal length f5 of the fifth lens L5 is-22.601257 mm.

TABLE 9

Watch 10

Fig. 15A, 15B, and 15C are a spherical aberration graph, an astigmatism graph, and a distortion graph, respectively, in the fifth embodiment.

The abscissa of the spherical aberration graph represents the focus offset, and the ordinate represents the normalized field of view, and when the wavelengths given in fig. 15A are 656.2725nm, 587.5618nm, 546.0740nm, 486.1327nm, and 435.8343nm, respectively, the focus offsets of different fields of view are all within ± 0.05mm, which indicates that the optical imaging system 10 in this embodiment has small spherical aberration and good imaging quality.

The abscissa of the astigmatism graph represents the focus offset, and the ordinate represents the image height, and the astigmatism curve shown in fig. 15B represents that the focus offsets of the sagittal image plane and the meridional image plane are both within ± 0.10mm when the wavelength is 546.0740nm, which indicates that the optical imaging system 10 in this embodiment has less astigmatism and better imaging quality.

The abscissa of the distortion curve represents the distortion rate, and the ordinate represents the image height, and the distortion curve given in fig. 15C represents that the distortion is within ± 2.5% when the wavelength is 546.0740nm, which indicates that the distortion of the optical imaging system 10 in this embodiment is better corrected and the imaging quality is better.

As can be seen from fig. 15, the optical imaging system 10 according to the fifth embodiment can achieve a good imaging effect.

Example six:

referring to fig. 16 to 18, fig. 17 is a schematic structural diagram of the optical imaging system 10 taken along the Y-axis forward direction in fig. 16. In the optical imaging system 10 of the present embodiment, the prism 11, the stop 13, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the infrared filter 15 are included from the object side to the image side.

The first lens element L1 with positive refractive power has a convex object-side surface S11 and a concave image-side surface S12, and both S11 and S12 are aspheric. The second lens element L2 with negative refractive power has a convex object-side surface S21 along the optical axis L, a concave image-side surface S22 along the circumference of the second lens element L2, and both S21 and S22 are aspheric. The third lens element L3 with positive refractive power has a concave object-side surface S31 and a convex image-side surface S32, and both S31 and S32 are aspheric. The fourth lens element L4 with positive refractive power has a concave object-side surface S41 along the optical axis L, a convex object-side surface S3526 along the circumference of the third lens element L3, a convex image-side surface S42, an aspheric surface S41, and a spherical surface S42. The fifth lens element L5 with negative refractive power has a concave object-side surface S51, a convex image-side surface S52, a spherical surface S51 and an aspheric surface S52.

In the sixth embodiment, the f-number fno of the optical imaging system 10 is 2.64, the field angle range FOV of the optical imaging system 10 is 24.98 °, the total system length TTL of the optical imaging system 10 is 9.60mm, and the focal length f of the optical imaging system 10 is 10.50 mm.

The distance TTL15 on the optical axis L of the object-side surface S11 of the first lens L1 and the image-side surface S52 of the fifth lens L5 is 7.33mm, the distance CT34 on the optical axis L of the image-side surface S32 of the third lens L3 and the object-side surface S41 of the fourth lens L4 is 1.65mm, the radius of curvature R31 on the optical axis L of the object-side surface of the third lens L3 is-20.77 mm, the perpendicular distance SD3 on the optical axis L of the maximum effective diameter of the object-side surface of the third lens L3 is 1.43mm, the perpendicular distance SD3 on the maximum effective diameter of the image-side surface of the fifth lens L3 on the optical axis L is 2.15mm, the radius of curvature R3 on the object-side surface of the fourth lens L3 on the optical axis L is 3 mm-3 mm, the maximum effective diameter SAG 3mm of the fourth lens L3 is 23.88mm, the maximum effective diameter of the radius of the image-sagl 3 is 3mm, the maximum effective diameter of the radius of the third lens L3 mm, the maximum effective diameter of the radius SAGs 3mm, the maximum effective diameter of the radius of the fourth lens L3 is 3mm, the maximum effective diameter of the radius sagl 3mm, the maximum effective diameter of the radius of the maximum SAGs 3 is 3mm, the maximum, the thickness ET2 of the second lens L2 at the maximum effective diameter is 1.41mm, the thickness ET3 of the third lens L3 at the maximum effective diameter is 0.60mm, the thickness CT1 of the first lens L1 on the optical axis L is 1.55mm, the thickness CT2 of the second lens L2 on the optical axis L is 1.04mm, the thickness CT3 of the third lens L3 on the optical axis L is 0.65mm, and the focal length f5 of the fifth lens L5 is-18.26 mm.

TABLE 11

TABLE 12

Fig. 18A, 18B, and 18C are a spherical aberration graph, an astigmatism graph, and a distortion graph, respectively, in the sixth embodiment.

The abscissa of the spherical aberration graph represents the focus offset, and the ordinate represents the normalized field of view, and when the wavelengths shown in fig. 18A are 656.2725nm, 587.5618nm, 546.0740nm, 486.1327nm, and 435.8343nm, respectively, the focus offsets of different fields of view are all within ± 0.05mm, which indicates that the optical imaging system 10 in this embodiment has small spherical aberration and good imaging quality.

The abscissa of the astigmatism graph represents the focus offset, and the ordinate represents the image height, and the astigmatism curve shown in fig. 18B represents that the focus offsets of the sagittal image plane and the meridional image plane are both within ± 0.05mm when the wavelength is 546.0740nm, which indicates that the optical imaging system 10 in this embodiment has less astigmatism and better imaging quality.

The abscissa of the distortion curve graph represents the distortion rate, and the ordinate represents the image height, and the distortion curve shown in fig. 18C represents that the distortion is within ± 2.5% when the wavelength is 546.0740nm, which indicates that the distortion of the optical imaging system 10 in this embodiment is better corrected and the imaging quality is better.

As can be seen from fig. 18, the optical imaging system 10 according to the sixth embodiment can achieve a good imaging effect.

Example seven:

referring to fig. 19 to 21, fig. 20 is a schematic structural diagram of the optical imaging system 10 taken along the Y-axis forward direction in fig. 19. In the optical imaging system 10 of the present embodiment, the prism 11, the stop 13, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the infrared filter 15 are included from the object side to the image side.

The first lens element L1 with positive refractive power has a convex object-side surface S11 and a concave image-side surface S12, and both S11 and S12 are aspheric. The second lens element L2 with negative refractive power has a convex object-side surface S21 along the optical axis L, a concave image-side surface S22 along the circumference of the second lens element L2, and both S21 and S22 are aspheric. The third lens element L3 with positive refractive power has a concave object-side surface S31 and a convex image-side surface S32, and both S31 and S32 are aspheric. The fourth lens element L4 with negative refractive power has a concave object-side surface S41 along the optical axis L, a convex object-side surface S3526 along the circumference of the third lens element L3, a convex image-side surface S42, an aspheric surface S41, and a spherical surface S42. The fifth lens element L5 with negative refractive power has a concave object-side surface S51, a convex image-side surface S52, a spherical surface S51 and an aspheric surface S52.

In embodiment seven, the f-number fno of the optical imaging system 10 is 2.64, the field angle range FOV of the optical imaging system 10 is 27.12 °, the total system length TTL of the optical imaging system 10 is 8.91mm, and the focal length f of the optical imaging system 10 is 9.58 mm.

The distance TTL15 on the optical axis L of the object-side surface S11 of the first lens L1 and the image-side surface S52 of the fifth lens L5 is 7.68mm, the distance CT34 on the optical axis L of the image-side surface S32 of the third lens L3 and the object-side surface S41 of the fourth lens L4 is 0.50mm, the radius of curvature R31 on the optical axis L of the object-side surface of the third lens L3 is-6.39 mm, the perpendicular distance SD 31.60 mm from the optical axis L at the maximum effective diameter of the object-side surface of the third lens L3, the perpendicular distance SD52 from the optical axis L at the maximum effective diameter of the image-side surface of the fifth lens L5 is 2.22mm, the radius of curvature R52 mm to 7.82mm of the object-side surface of the fourth lens L52 at the optical axis L, the focal length 52 f 52 of the fourth lens L52 is 7.46 mm, the maximum effective diameter S52 mm of the radius SAG 52mm, the maximum effective diameter of the image-52 mm of the image-x 52mm of the fourth lens L52 mm, the maximum effective diameter of the radius SAG 52mm at the maximum effective diameter of the image-52 mm of the third lens L52 mm, the maximum effective diameter of the lens SAG 52mm, the maximum effective diameter of the fourth lens L52 mm, the lens S52 mm, the thickness ET2 of the second lens L2 at the maximum effective diameter is 1.25mm, the thickness ET3 of the third lens L3 at the maximum effective diameter is 0.56mm, the thickness CT1 of the first lens L1 on the optical axis L is 1.39mm, the thickness CT2 of the second lens L2 on the optical axis L is 0.97mm, the thickness CT3 of the third lens L3 on the optical axis L is 0.65mm, and the focal length f5 of the fifth lens L5 is-18.32 mm.

watch 13

TABLE 14

Fig. 21A, 21B, and 21C are a spherical aberration graph, an astigmatism graph, and a distortion graph, respectively, in the seventh embodiment.

The abscissa of the spherical aberration graph represents the focus offset, and the ordinate represents the normalized field of view, and when the wavelengths given in fig. 21A are 656.2725nm, 587.5618nm, 546.0740nm, 486.1327nm, and 435.8343nm, respectively, the focus offsets of different fields of view are all within ± 0.05mm, which indicates that the optical imaging system 10 in this embodiment has small spherical aberration and good imaging quality.

The abscissa of the astigmatism graph represents the focus offset, and the ordinate represents the image height, and the astigmatism curve shown in fig. 21B represents that the focus offsets of the sagittal image plane and the meridional image plane are both within ± 0.05mm when the wavelength is 546.0740nm, which indicates that the optical imaging system 10 in this embodiment has less astigmatism and better imaging quality.

The abscissa of the distortion curve represents the distortion rate, and the ordinate represents the image height, and the distortion curve given in fig. 21C represents that the distortion is within ± 2.5% when the wavelength is 546.0740nm, which indicates that the distortion of the optical imaging system 10 in this embodiment is better corrected and the imaging quality is better.

As can be seen from fig. 21, the optical imaging system 10 according to the seventh embodiment can achieve a good imaging effect.

Example eight:

referring to fig. 22 to 24, fig. 23 is a schematic structural diagram of the optical imaging system 10 obtained along the Y-axis forward direction in fig. 22. In the optical imaging system 10 of the present embodiment, the prism 11, the stop 13, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the infrared filter 15 are included from the object side to the image side.

The first lens element L1 with positive refractive power has a convex object-side surface S11, a concave image-side surface S12 along the optical axis L, and a convex surface around the first lens element L1, wherein S11 and S12 are aspheric. The second lens element L2 with positive refractive power has a convex object-side surface S21, a concave image-side surface S22 along the optical axis L, and a convex surface around the second lens element L2, wherein both S21 and S22 are aspheric. The third lens element L3 with negative refractive power has a concave object-side surface S31, a convex image-side surface S32 along the optical axis L, and a concave surface around the third lens element L3, wherein both S31 and S32 are aspheric. The fourth lens element L4 with negative refractive power has a concave object-side surface S41, a convex image-side surface S42, an aspheric surface S41, and a spherical surface S42. The fifth lens element L5 with negative refractive power has a concave object-side surface S51, a convex image-side surface S52, a spherical surface S51 and an aspheric surface S52.

In the eighth embodiment, the f-number fno of the optical imaging system 10 is 2.64, the field angle range FOV of the optical imaging system 10 is 28.20 °, the total system length TTL of the optical imaging system 10 is 8.80mm, and the focal length f of the optical imaging system 10 is 9.00 mm.

The distance TTL15 on the optical axis L of the object-side surface S11 of the first lens L1 and the image-side surface S52 of the fifth lens L5 is 5.68mm, the distance CT34 on the optical axis L of the image-side surface S32 of the third lens L3 and the object-side surface S41 of the fourth lens L4 is 0.32mm, the radius of curvature R31 on the optical axis L of the object-side surface of the third lens L3 is-3.50 mm, the perpendicular distance SD31 from the optical axis L at the maximum effective diameter of the object-side surface of the third lens L3 is 1.63mm, the perpendicular distance SD52 from the optical axis L at the maximum effective diameter of the image-side surface of the fifth lens L5 is 1.80mm, the radius of curvature R52 of the object-side surface of the fourth lens L52 at the optical axis L52 is 12.24mm, the focal length f 52 of the fourth lens L52 is 5.14 mm, the maximum effective diameter S52 mm of the image-x 52mm of the maximum effective diameter of the third lens L52 mm, the radius SAG 52mm at the maximum effective diameter of the image-20 x 52mm of the fourth lens L52 mm, the maximum effective diameter of the radius SAG 52 x 52mm of the maximum effective diameter of the fourth lens L52 x 52mm, the maximum effective diameter of the third lens L52 x 52mm, the thickness ET2 of the second lens L2 at the maximum effective diameter is 0.31mm, the thickness ET3 of the third lens L3 at the maximum effective diameter is 1.01mm, the thickness CT1 of the first lens L1 on the optical axis L is 1.14mm, the thickness CT2 of the second lens L2 on the optical axis L is 0.43mm, the thickness CT3 of the third lens L3 on the optical axis L is 0.72mm, and the focal length f5 of the fifth lens L5 is-18.32 mm.

watch 15

TABLE 16

Fig. 24A, 24B, and 24C are a spherical aberration graph, an astigmatism graph, and a distortion graph, respectively, in example eight.

The abscissa of the spherical aberration graph represents the focus offset, and the ordinate represents the normalized field of view, and when the wavelengths given in fig. 24A are 656.2725nm, 587.5618nm, 546.0740nm, 486.1327nm, and 435.8343nm, respectively, the focus offsets of different fields of view are all within ± 0.20mm, which indicates that the optical imaging system 10 in this embodiment has small spherical aberration and good imaging quality.

The abscissa of the astigmatism graph represents the focus offset, and the ordinate represents the image height, and the astigmatism curve shown in fig. 24B represents that the focus offsets of the sagittal image plane and the meridional image plane are both within ± 0.05mm when the wavelength is 546.0740nm, which indicates that the optical imaging system 10 in this embodiment has less astigmatism and better imaging quality.

The abscissa of the distortion curve represents the distortion rate, and the ordinate represents the image height, and the distortion curve given in fig. 24C represents that the distortion is within ± 2.5% when the wavelength is 546.0740nm, which indicates that the distortion of the optical imaging system 10 in this embodiment is better corrected and the imaging quality is better.

As can be seen from fig. 24, the optical imaging system 10 according to the eighth embodiment can achieve a good imaging effect.

Example nine:

referring to fig. 25 to 27, fig. 26 is a schematic structural diagram of the optical imaging system 10 taken along the Y-axis forward direction in fig. 25. In the optical imaging system 10 of the present embodiment, the prism 11, the stop 13, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the infrared filter 15 are included from the object side to the image side.

The first lens element L1 with positive refractive power has a convex object-side surface S11, a concave image-side surface S12 along the optical axis L, and a convex surface around the first lens element L1, wherein S11 and S12 are aspheric. The second lens element L2 with negative refractive power has a convex object-side surface S21, a concave image-side surface S22 along the optical axis L, and a convex surface around the second lens element L2, wherein both S21 and S22 are aspheric. The third lens element L3 with negative refractive power has a concave object-side surface S31 along the optical axis L, a convex surface along the circumference of the third lens element L3, a convex image-side surface S32 along the optical axis L, and a concave surface along the circumference of the third lens element L3, wherein both S31 and S32 are aspheric. The fourth lens element L4 with negative refractive power has a concave object-side surface S41, a convex image-side surface S42, an aspheric surface S41, and a spherical surface S42. The fifth lens element L5 with negative refractive power has a concave object-side surface S51, a convex image-side surface S52, a spherical surface S51 and an aspheric surface S52.

In the ninth embodiment, the f-number fno of the optical imaging system 10 is 2.64, the field angle range FOV of the optical imaging system 10 is 27.78 °, the total system length TTL of the optical imaging system 10 is 8.50mm, and the focal length f of the optical imaging system 10 is 9.00 mm.

The distance TTL15 on the optical axis L of the object-side surface S11 of the first lens L1 and the image-side surface S52 of the fifth lens L5 is 4.33mm, the distance CT34 on the optical axis L of the image-side surface S32 of the third lens L3 and the object-side surface S41 of the fourth lens L4 is 0.34mm, the radius of curvature R31 on the optical axis L of the object-side surface of the third lens L3 is-4.20 mm, the perpendicular distance SD31 from the optical axis L at the maximum effective diameter of the object-side surface of the third lens L3 is 1.51mm, the perpendicular distance SD52 from the optical axis L at the maximum effective diameter of the image-side surface of the fifth lens L5 is 1.52mm, the radius of curvature R52 of the object-side surface of the fourth lens L52 at the optical axis L is 5.11mm, the focal length f 52 of the fourth lens L52 is 15.44mm, the maximum effective diameter S52 mm of the image-side surface S52 mm of the third lens L52 is 52mm, the maximum effective diameter of the radius SAG 52mm of the fourth lens L52 mm, the maximum effective diameter of the lens L52 mm at the radius SAG 52mm, the maximum effective diameter of the radius of the image-52 mm of the fourth lens L52 mm, the lens L36, the thickness ET2 of the second lens L2 at the maximum effective diameter is 0.50mm, the thickness ET3 of the third lens L3 at the maximum effective diameter is 0.78mm, the thickness CT1 of the first lens L1 on the optical axis L is 1.20mm, the thickness CT2 of the second lens L2 on the optical axis L is 0.52mm, the thickness CT3 of the third lens L3 on the optical axis L is 0.60mm, and the focal length f5 of the fifth lens L5 is-18.38 mm.

TABLE 17

Watch 18

Fig. 27A, 27B, and 27C are a spherical aberration graph, an astigmatism graph, and a distortion graph, respectively, in the ninth embodiment.

The abscissa of the spherical aberration graph represents the focus offset, and the ordinate represents the normalized field of view, and when the wavelengths given in fig. 27A are 656.2725nm, 587.5618nm, 546.0740nm, 486.1327nm, and 435.8343nm, respectively, the focus offsets of different fields of view are all within ± 0.10mm, which indicates that the optical imaging system 10 in this embodiment has small spherical aberration and good imaging quality.

The abscissa of the astigmatism graph represents the focus offset, and the ordinate represents the image height, and the astigmatism curve shown in fig. 27B represents that the focus offsets of the sagittal image plane and the meridional image plane are both within ± 0.05mm when the wavelength is 546.0740nm, which indicates that the optical imaging system 10 in this embodiment has less astigmatism and better imaging quality.

The abscissa of the distortion curve represents the distortion rate, and the ordinate represents the image height, and the distortion curve given in fig. 27C represents that the distortion is within ± 5.0% when the wavelength is 546.0740nm, which indicates that the distortion of the optical imaging system 10 in this embodiment is better corrected and the imaging quality is better.

As can be seen from fig. 27, the optical imaging system 10 according to the ninth embodiment can achieve a good imaging effect.

Example ten:

referring to fig. 28 to 30, fig. 29 is a schematic structural diagram of the optical imaging system 10 taken along the Y-axis forward direction in fig. 28. In the optical imaging system 10 of the present embodiment, the prism 11, the stop 13, the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the infrared filter 15 are included from the object side to the image side.

The first lens element L1 with positive refractive power has a convex object-side surface S11 along the optical axis L, a concave object-side surface S3526 along the circumference of the first lens element L1, a convex image-side surface S12, and both S11 and S12 are aspheric. The second lens element L2 with negative refractive power has a concave object-side surface S21, a concave image-side surface S22 along the optical axis L, and a convex surface around the second lens element L2, wherein both S21 and S22 are aspheric. The third lens element L3 with positive refractive power has a convex object-side surface S31, a convex image-side surface S32 along the optical axis L, and a concave surface around the third lens element L3, wherein both S31 and S32 are aspheric. The fourth lens element L4 with negative refractive power has a concave object-side surface S41, a convex image-side surface S42, an aspheric surface S41, and a spherical surface S42. The fifth lens element L5 with negative refractive power has a concave object-side surface S51, a convex image-side surface S52, a spherical surface S51 and an aspheric surface S52.

In the tenth embodiment, the f-number fno of the optical imaging system 10 is 2.64, the field angle range FOV of the optical imaging system 10 is 27.82 °, the total system length TTL of the optical imaging system 10 is 9.00mm, and the focal length f of the optical imaging system 10 is 9.00 mm.

The distance TTL15 on the optical axis L of the object-side surface S11 of the first lens L1 and the image-side surface S52 of the fifth lens L5 is 7.87mm, the distance CT34 on the optical axis L of the image-side surface S32 of the third lens L3 and the object-side surface S41 of the fourth lens L4 is 2.36mm, the radius of curvature R31 on the optical axis L of the object-side surface of the third lens L3 is 19.73mm, the perpendicular distance SD31 from the optical axis L at the maximum effective diameter of the object-side surface of the third lens L3 is 1.57mm, the perpendicular distance SD52 from the optical axis L at the maximum effective diameter of the image-side surface of the fifth lens L5 is 2.03mm, the radius of curvature R52 of the object-3.97 mm of the object-side surface of the fourth lens L52 at the optical axis L, the focal length f 52 of the fourth lens L52 is 10.54mm, the maximum effective diameter S52 mm of the image-side surface S52 mm of the third lens L52 is 52mm, the maximum effective diameter of the radius SAG 52mm, the maximum effective diameter of the radius S52 mm of the fourth lens L52 mm, the maximum effective diameter of the lens L52 mm is 52mm, the maximum effective diameter of the focal length S52 mm of the third lens L52 mm, the maximum effective diameter of the lens, the thickness ET2 of the second lens L2 at the maximum effective diameter is 0.67mm, the thickness ET3 of the third lens L3 at the maximum effective diameter is 0.57mm, the thickness CT1 of the first lens L1 on the optical axis L is 1.17mm, the thickness CT2 of the second lens L2 on the optical axis L is 0.50mm, the thickness CT3 of the third lens L3 on the optical axis L is 0.62mm, and the focal length f5 of the fifth lens L5 is-18.38 mm.

watch 19

Watch 20

Fig. 30A, 30B, and 30C are a spherical aberration graph, an astigmatism graph, and a distortion graph, respectively, in the example.

The abscissa of the spherical aberration graph represents the focus offset, the ordinate represents the normalized field of view, and when the wavelengths given in fig. 30A are 656.2725nm, 587.5618nm, 546.0740nm, 486.1327nm, and 435.8343nm, respectively, and the ordinate ranges are [0,0.75], the focus offsets of different fields of view are all within ± 0.05mm, which indicates that the optical imaging system 10 in this embodiment has a certain effect of improving spherical aberration and imaging quality.

The abscissa of the astigmatism graph represents the focus offset, and the ordinate represents the image height, and the astigmatism curve shown in fig. 30B represents that the focus offsets of the sagittal image plane and the meridional image plane are both within ± 0.05mm when the wavelength is 546.0740nm, which indicates that the optical imaging system 10 in this embodiment has less astigmatism and better imaging quality.

The abscissa of the distortion curve graph represents the distortion rate, and the ordinate represents the image height, and the distortion curve shown in fig. 30C represents that the distortion is within ± 5.0% when the wavelength is 546.0740nm, which indicates that the distortion of the optical imaging system 10 in this embodiment is better corrected and the imaging quality is better.

As can be seen from fig. 30, the optical imaging system 10 according to the tenth embodiment can achieve a good imaging effect.

In addition, the optical imaging system 10 in embodiments one to ten also satisfies the conditions of the following table:

TABLE 21

Referring to fig. 31, an image module 110 according to an embodiment of the present invention includes a photosensitive element 111 and the optical imaging system 10 according to any of the above embodiments. The photosensitive element 111 is mounted on the image side of the optical imaging system 10. The light-sensing element 111 is used to convert an optical signal that has passed through the optical imaging system 10 and reached the image side into an electrical signal.

The camera module 110 maintains a sufficient telephoto focal length by balancing the size of the periscope module, reduces the complexity of the surface type, and reasonably distributes the refractive power of the lens, thereby improving the image quality and having good manufacturability.

It can be understood that the optical signal changes the optical path transmission direction after passing through the optical imaging system 10, so that a picture with high image quality can be formed on the image side of the optical imaging system 10. The light sensing element 111 may process the image side optical signal into a corresponding electrical signal, and the electrical signal may be transmitted to the electronic display screen, so that a picture formed by the optical signal on the image side may be displayed by the electronic display screen. In one embodiment, the light sensing element 111 includes a photosensor for converting light signals to analog signals and an analog-to-digital converter for converting analog signals output by the photosensor to digital signals.

In addition, it can be understood that, in the case where the optical imaging system 10 has the prism 11, by adjusting the orientation of the prism 11 with respect to the lens group, the optical imaging system 10 can receive light signals of different orientations, so that the object-side range of the optical imaging system 10 can be increased without changing the orientation of the overall structure of the optical imaging system 10.

The electronic device 20 according to the embodiment of the present invention includes a housing 21 and the camera module 110 according to the embodiment. The camera module 110 is mounted on the housing 21.

The electronic device 20 provides a large aperture and an effective imaging circle diameter by balancing the size of the periscope module, the FNO, the image plane size and the optical system volume, keeps enough telephoto focal length, reduces the complexity of the surface type, and reasonably distributes the refractive power of the lens, thereby improving the image quality and having good manufacturability.

The electronic device 20 according to the embodiment of the present invention includes, but is not limited to, an information terminal device such as a camera, a car recorder, a smart phone, a Personal Digital Assistant (PDA), a tablet computer, a Personal Computer (PC), and a smart wearable device, or an electronic device having a photographing function.

Specifically, in the embodiment shown in fig. 32, the electronic device 20 is a smartphone, and the camera module 110 is a front camera of the electronic device 20. It is understood that in other embodiments, the camera module 110 may be disposed at any position of the electronic device 20 to achieve the effect of the camera module 110 for shooting in the foregoing embodiments.

In addition, in the embodiment shown in fig. 33, the electronic device 20 may be used for the vehicle 100. Specifically, the electronic device 20 may be a front camera of the vehicle 100, a camera in an ADAS (Advanced Driver assistance System) of the vehicle 100, a driving recorder of the vehicle 100, or a monitoring security camera of the vehicle 100. The number of the electronic devices 20 may be one, two, or more than two.

In the description of the specification, references to the terms "one embodiment", "some embodiments", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An optical imaging system, in order from an object side to an image side along an optical axis, comprising:

2. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following relationship:

1.1＜f/TTL15＜2.1；

3. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following relationship:

CT34/|R31|＜0.22；

4. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following relationship:

0.66＜SD31/SD52＜1.0；

5. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following relationship:

|R41|/|f4|＜4.3；

6. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following relationship:

|SAG32|/|SAG41|＜6.3；

7. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following relationship:

0.7＜ET2/CT2＜1.4；

8. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following relationship:

0.7＜(ET1+ET2+ET3)/(CT1+CT2+CT3)＜1.1；

9. The optical imaging system of claim 1, wherein the optical imaging system satisfies the following relationship:

(|f4|+|f5|)/|R41|＜30.0；

10. The utility model provides a module of making a video recording, its characterized in that, the module of making a video recording includes:

a photosensitive element; and

the optical imaging system of any one of claims 1-9, the photosensitive element mounted on an image side of the optical imaging system, the photosensitive element for converting optical signals passing through the optical imaging system and reaching the image side into electrical signals.

11. An electronic device, comprising:

a housing; and

the camera module of claim 10, mounted to the housing.