CN213423581U

CN213423581U - Optical lens, camera module, electronic equipment and automobile

Info

Publication number: CN213423581U
Application number: CN202022438749.8U
Authority: CN
Inventors: 蔡雄宇; 兰宾利; 赵迪; 周芮
Original assignee: Tianjin OFilm Opto Electronics Co Ltd
Current assignee: Jiangxi Oufei Optics Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-11
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses an optical lens, module of making a video recording and electronic equipment, car, optical lens include along first lens, second lens, third lens, fourth lens, fifth lens and the sixth lens that the optical axis set gradually from the thing side to picture side, first lens has negative refractive power, the second lens has positive refractive power, the third lens has positive refractive power, the fourth lens has positive refractive power, the fifth lens has negative refractive power, the sixth lens has positive refractive power, optical lens satisfies following relation: 3.5< TTL/d16< 6.7. The embodiment of the utility model provides an optical lens, module of making a video recording and electronic equipment, car have above-mentioned refractive power, object side and the convex-concave design of being close to optical axis department with the side of being like through lens, and when satisfying 3.5< TTL d16< 6.7's relation, can effectively improve optical lens's resolution ratio, depth of field scope and realize the clear formation of image of wide-angle range, can realize optical lens's miniaturized design simultaneously.

Description

Optical lens, camera module, electronic equipment and automobile

Technical Field

The utility model relates to an optical imaging technology field especially relates to an optical lens, module of making a video recording and electronic equipment, car thereof.

Background

With the development of technology, the demand for miniaturization and high-quality imaging quality of optical lenses is increasing. There is a trend toward the use of optical lenses that are thin, short, and have wide-angle photographing in various electronic devices, such as in-vehicle cameras, automobile recorders, and the like. In the related art, the miniaturization design requirement of the optical lens is high, the resolution of the optical lens is low, the depth of field is small, and the imaging of long-distance details and the clear imaging of a large-angle range cannot be simultaneously met, so that the high-definition imaging requirements of a vehicle-mounted camera, a vehicle-mounted recorder and the like cannot be met.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses optical lens, module of making a video recording and electronic equipment, car can be effectively improving optical lens's resolution ratio, depth of field scope and realize the clear formation of image of remote detail formation of image and wide-angle range, can realize optical lens's miniaturized design simultaneously.

In order to achieve the above object, in a first aspect, the present invention discloses an optical lens including a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens arranged in order from an object side to an image side along an optical axis;

the first lens element with negative refractive power has a planar object-side surface at paraxial region;

the second lens element with positive refractive power has a convex object-side surface at paraxial region;

the third lens element with positive refractive power has a concave object-side surface at paraxial region;

the fourth lens element with positive refractive power has a convex object-side surface and a convex image-side surface at paraxial region;

the fifth lens element with negative refractive power has an object-side surface cemented with the image-side surface of the fourth lens element;

the sixth lens element with positive refractive power has a convex object-side surface and a convex image-side surface at a paraxial region;

the optical lens satisfies the following relationship:

3.5< TTL/d16<6.7, where TTL is a distance on the optical axis from the object-side surface of the first lens element to the image plane of the optical lens system (i.e., a total length of the optical lens system), and d16 is a sum of air spaces on the optical axis from the first lens element to the sixth lens element of the optical lens system.

In the optical lens provided by this embodiment, six lens elements are adopted, and on the basis of not increasing the number of lens elements, the lens elements are provided with the above-mentioned refractive powers, convex-concave designs of the object side surface and the image side surface, so that the resolution and the depth of field of the optical lens can be effectively improved, and shooting and clear imaging in a wide angle range can be realized, so that the optical lens can meet the shooting requirement of a wide angle. In addition, the optical lens of this embodiment is favorable to making optical lens overall structure compacter through the total length of optical lens and the air interval of six lenses on the optical axis sum of injecing to realize optical lens's miniaturized design, reduce the degree of difficulty of miniaturized design.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, an object-side surface and/or an image-side surface of at least one of the first lens element to the sixth lens element is aspheric;

the abbe number Vd of at least one of the first lens element to the sixth lens element satisfies the following relation:

vd <20 or Vd > 75.

The abbe number of at least one lens is limited, so that chromatic aberration can be better corrected, and the imaging quality of the optical lens can be improved.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the optical lens satisfies the following relation:

3.5<f3/f<11.2；

wherein f3 is the focal length of the third lens, and f is the effective focal length of the optical lens.

Because the light rays are emitted by the first lens and the second lens with stronger refractive power, and the marginal light rays are emitted into the image surface of the optical lens to easily generate a larger field area, the third lens with positive refractive power is arranged, so that the marginal aberration can be favorably corrected, and the imaging resolution is improved.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the optical lens satisfies the following relation: -8< f12/f3456< -2;

wherein f12 is a combined focal length of the first lens and the second lens, and f3456 is a combined focal length of the third lens, the fourth lens, the fifth lens and the sixth lens.

By reasonably controlling the power distribution ratio of f12 and f3456, the incidence width of light rays can be favorably controlled, and the high-order aberration of the optical lens is reduced. Meanwhile, the relation is satisfied, the emergent angle of the chief ray passing through the third lens, the fourth lens, the fifth lens and the sixth lens can be reduced, and the relative brightness of the optical lens is improved.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the optical lens satisfies the following relation: 2.4< f45/f < 4.4;

wherein f45 is a combined focal length of the fourth lens and the fifth lens, and f is an effective focal length of the optical lens.

The lens assembly formed by combining the fourth lens element and the fifth lens element has positive refractive power, so that aberration of the optical lens assembly can be corrected. Meanwhile, the accumulated tolerance of the two elements is set to be the tolerance of one integrated element through the arrangement of the gluing element, so that the eccentricity sensitivity can be reduced, the assembly sensitivity of the optical lens is reduced, the problems of lens process manufacturing and lens assembly are solved, and the yield is improved. In addition, aberration correction between the gluing pieces is beneficial to improving imaging resolution, so that the imaging quality of the optical lens is improved.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the optical lens satisfies the following relation: -6.3< f1/CT1< -4.5;

wherein f1 is the focal length of the first lens element, and CT1 is the thickness of the first lens element on the optical axis.

The change of the thickness of the lens can affect the effective focal length of the optical lens, so that the reasonable relationship between the thickness of the first lens and the focal length of the first lens can reduce the tolerance sensitivity of the thickness of the first lens, reduce the difficulty of the processing technology of the single lens, be beneficial to improving the assembly yield of the lens group and further reduce the production cost. On the premise of satisfying the optical performance, the larger the thickness of the first lens is, the larger the weight of the lens is, which is not favorable for the light-weight design of the imaging lens group.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the optical lens satisfies the following relation: 5.5< f2/CT2<8, wherein f2 is the focal length of the second lens, and CT2 is the thickness of the second lens on the optical axis.

The effective focal length of the optical lens is influenced by the thickness change of the lens, so that the relationship between the thickness of the second lens and the focal length of the second lens is reasonably matched, the tolerance sensitivity of the thickness of the second lens can be reduced, the processing difficulty of a single lens is reduced, the assembly yield of the lens group is favorably improved, and the production cost is further reduced. On the premise of satisfying the optical performance, the larger the thickness of the second lens is, the larger the weight of the second lens is, which is not favorable for the light-weight design of the imaging lens group.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the optical lens satisfies the following relation: 7.5< f6/CT6< 26.6;

wherein f6 is the focal length of the sixth lens, and CT6 is the thickness of the sixth lens on the optical axis.

Because the effective focal length of the optical lens is affected by the thickness change of the lens, the thickness of the sixth lens and the focal length of the sixth lens are reasonably matched, the tolerance sensitivity of the thickness of the sixth lens can be reduced, the processing difficulty of the single lens is reduced, the assembly yield of the lens group is favorably improved, and the production cost is further reduced. On the premise of satisfying the optical performance, the larger the thickness of the sixth lens is, the larger the weight of the sixth lens is, which is not favorable for the light-weight design of the imaging lens group.

As an alternative implementation manner, in an embodiment of the first aspect of the present invention, 2.5< (R2+ R3)/D12 <11, where R2 is a radius of curvature of the image-side surface of the first lens at the optical axis, R3 is a radius of curvature of the object-side surface of the second lens at the optical axis, and D12 is a distance from the image-side surface of the first lens to the object-side surface of the second lens on the optical axis.

When the relational expression is satisfied, the angle of the image plane of the optical lens, at which the chief rays of the peripheral visual angle are incident, can be reduced, the probability of generating ghost images is reduced, the generation of astigmatism is easily inhibited, and the imaging quality is improved.

In a second aspect, the present invention discloses a camera module, which comprises an image sensor and an optical lens according to the above first aspect, wherein the image sensor is disposed on the image side of the optical lens.

The camera module with the optical lens can reduce the lens forming and assembling difficulty of the optical lens while meeting the requirement of miniaturization design, and simultaneously realizes shooting and clear imaging in a large angle range.

A third aspect, the utility model also discloses an electronic equipment, electronic equipment include the casing and as above-mentioned second aspect the module of making a video recording, the module of making a video recording is located the casing. The electronic equipment with the camera module can effectively meet the requirement of miniaturization design, can also reduce the lens forming and assembling difficulty of the optical lens, and simultaneously realizes the shooting and clear imaging in a large angle range.

In a fourth aspect, the utility model also discloses a car, the car include the automobile body and as above-mentioned second aspect the module of making a video recording, the module of making a video recording is located in order to acquire on the automobile body environmental information around the automobile body. The automobile with the camera module can be beneficial to obtaining environmental information around the automobile body, and meanwhile, shooting and clear imaging within a large angle range can be obtained, so that better driving early warning is provided for driving of a driver.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the embodiment of the utility model provides an optical lens, module of making a video recording and electronic equipment, car, this optical lens adopt six formula lens to the power of refracting of each lens, face type design, and satisfy the relational expression: 3.5< TTL/d16<6.7, the optical lens can meet the requirement of miniaturization design, and simultaneously, the resolution and the depth of field of the optical lens can be improved, and long-distance detail imaging and large-angle range clear imaging can be realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an optical lens disclosed in a first embodiment of the present application;

fig. 2 is a longitudinal spherical aberration diagram (mm), an astigmatism diagram (mm), and a distortion diagram (%);

fig. 3 is a schematic structural diagram of an optical lens disclosed in the second embodiment of the present application;

fig. 4 is a longitudinal spherical aberration diagram (mm), an astigmatism diagram (mm), and a distortion diagram (%);

fig. 5 is a schematic structural diagram of an optical lens disclosed in the third embodiment of the present application;

fig. 6 is a longitudinal spherical aberration diagram (mm), an astigmatism diagram (mm), and a distortion diagram (%);

fig. 7 is a schematic structural diagram of an optical lens disclosed in a fourth embodiment of the present application;

fig. 8 is a longitudinal spherical aberration diagram (mm), an astigmatism diagram (mm), and a distortion diagram (%);

fig. 9 is a schematic structural diagram of an optical lens disclosed in a fifth embodiment of the present application;

fig. 10 is a longitudinal spherical aberration diagram (mm), an astigmatism diagram (mm), and a distortion diagram (%);

fig. 11 is a schematic structural diagram of the camera module disclosed in the present application;

FIG. 12 is a schematic diagram of an electronic device disclosed herein;

fig. 13 is a schematic structural view of an automobile disclosed in the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Referring to fig. 1, according to a first aspect of the present application, an optical lens 100 is disclosed, the optical lens 100 includes a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6, which are disposed in order from an object side to an image side along an optical axis O. During imaging, light enters the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5 and the sixth lens L6 in sequence from the object side of the first lens L1, and is finally imaged on the imaging surface 101 of the optical lens 100. The first lens element L1 with negative refractive power, the second lens element L2 with positive refractive power, the third lens element L3 with positive refractive power, the fourth lens element L4 with positive refractive power, the fifth lens element L5 with negative refractive power and the sixth lens element L6 with positive refractive power.

Further, the object-side surface L10 and the image-side surface L12 of the first lens element L1 are respectively a plane surface and a concave surface at the paraxial region, the object-side surface L20 of the second lens element L2 is a convex surface at the paraxial region, and the image-side surface L22 is a concave surface or a convex surface at the paraxial region. The object-side surface L30 of the third lens element L3 is concave at the paraxial region, the image-side surface L32 is convex at the paraxial region, the object-side surface L40 of the fourth lens element L4 is convex at the paraxial region, and the image-side surface L44 is convex at the paraxial region. The object-side surface L50 of the fifth lens element L5 is concave at the paraxial region, and the image-side surface L52 is convex at the paraxial region. The object-side surface L60 of the sixth lens element L6 is convex at the paraxial region, and the image-side surface L62 is convex at the paraxial region.

In view of the fact that the optical lens is often applied to electronic devices such as vehicle-mounted devices and automobile recorders or applied to automobiles and used as a camera on an automobile body, the six lenses can be made of glass, so as to reduce the influence of temperature on the lenses and ensure the imaging quality. Furthermore, the object side surface and/or the image side surface of at least one lens is/are aspheric. Illustratively, the object-side surface and the image-side surface of the first lens element to the fifth lens element are spherical, and the object-side surface and the image-side surface of the sixth lens element L6 are aspherical. Moreover, when the abbe number of at least one lens in the lenses satisfies the relational expression Vd <20 or Vd > 75, the chromatic aberration can be better corrected, and the imaging quality of the optical lens can be improved. Illustratively, the abbe number Vd5 of the fifth lens L5 is <20, and the abbe number Vd6 of the sixth lens L6 is > 75. The above description is exemplary, and may be adjusted according to actual conditions, and this embodiment is not limited to this.

In addition, it is understood that, in other embodiments, when the optical lens 100 is applied to an electronic device such as a smart phone or a smart tablet, the material of the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5, and the sixth lens L6 can also be plastic.

In some embodiments, the optical lens 100 further includes a stop 102, and the stop 102 may be an aperture stop 102 and/or a field stop 102, which may be disposed between the second lens L2 and the third lens L3. For example, the stop 102 may be disposed between the image-side surface L22 of the second lens L2 and the object-side surface L30 of the third lens L3. It is understood that, in other embodiments, the stop 102 may be disposed between other lenses or between the object plane of the optical lens 100 and the object-side plane L10 of the first lens L1, and the setting may be adjusted according to practical situations, which is not specifically limited in this embodiment.

Optionally, in order to improve the imaging quality, the optical lens 100 further includes an optical filter 70, and the optical filter 70 is disposed between the sixth image-side surface L62 of the sixth lens L6 and the imaging surface of the optical lens 100. Optionally, the optical filter 70 is an infrared optical filter, and by adopting the arrangement of the infrared optical filter 70, the infrared light passing through the sixth lens L6 can be effectively filtered, so that the imaging definition of the object on the image side is ensured, and the imaging quality is improved.

Further, in order to protect the optical lens 100, the optical lens 100 further includes a protective glass 80, and the protective glass 80 is disposed between the optical filter 70 and the imaging surface 101 of the optical lens.

In some embodiments, the optical lens 100 satisfies the following relationship: 3.5< TTL/d16<6.7, where TTL is the total length of the optical lens system, i.e., TTL is the distance from the object-side surface L10 of the first lens element L1 to the image plane 101 of the optical lens system 100 on the optical axis. d16 is the sum of the air spaces on the optical axis of the first lens L1 to the sixth lens L6 of the optical lens. Optionally, the ratio of TTL/d16 can be 3.572, 3.951, 4.406, 4.448, 5.209, etc.

Through the total length of the optical lens and the limitation of the sum of the air intervals of the six lenses on the optical axis, the overall structure of the optical lens is more compact, so that the miniaturization design of the optical lens is realized, and the difficulty of the miniaturization design is reduced.

In some embodiments, the optical lens 100 satisfies the following relationship: 3.5< f3/f < 11.2; wherein f3 is the focal length of the third lens, and f is the effective focal length of the optical lens; alternatively, the ratio of f3/f may be 4.309, 5.331, 5.460, 9.357, 11.168, and the like.

Because the light rays are emitted by the first lens and the second lens with stronger refractive power, and the marginal light rays are emitted into the image surface of the optical lens to easily generate a larger field area, the third lens with positive refractive power is arranged, so that the marginal aberration can be favorably corrected, and the imaging resolution is improved. When the above-mentioned relational expression range is exceeded, correction of aberration of the optical lens is not facilitated, thereby degrading the imaging quality.

In some embodiments, the optical lens 100 satisfies the following relationship: -8< f12/f3456< -2; wherein f12 is a combined focal length of the first lens and the second lens, and f456 is a combined focal length of the third lens, the fourth lens, the fifth lens, and the sixth lens. Optionally, the value of f12/f3456 can be-7.877, -7.721, -2.948, -2.893, -2.106, etc. By reasonably controlling the power distribution ratio of f12 and f3456, the incidence width of light rays can be favorably controlled, and the high-order aberration of the optical lens is reduced. Meanwhile, the relation is satisfied, the emergent angle of the chief rays passing through the third lens, the fourth lens, the fifth lens and the sixth lens can be reduced, and the relative brightness of the optical lens is improved.

In some embodiments, the optical lens 100 satisfies the following relationship: 2.4< f45/f < 4.4; wherein f45 is a combined focal length of the fourth lens and the fifth lens, and f is an effective focal length of the optical lens. Illustratively, f45/f can take on values of 2.352, 3.194, 3.230, 3.337, 3.303, and the like.

The lens assembly formed by combining the fourth lens element and the fifth lens element has positive refractive power, so that aberration of the optical lens assembly can be corrected. Meanwhile, the accumulated tolerance of the two elements is set to be the tolerance of one integrated element through the arrangement of the gluing element, so that the eccentricity sensitivity can be reduced, the assembly sensitivity of the optical lens is reduced, the problems of lens process manufacturing and lens assembly are solved, and the yield is improved. In addition, aberration correction between the gluing pieces is beneficial to improving imaging resolution, so that the imaging quality of the optical lens is improved. When the range of the relation is exceeded, the correction of the system aberration of the optical lens is not facilitated, thereby reducing the imaging quality.

In some embodiments, optical lens 100 satisfies the following relationship: -6.3< f1/CT1< -4.5; wherein f1 is the focal length of the first lens element, and CT1 is the thickness of the first lens element on the optical axis. Optionally, in the above relational expression, the value of f1/CT1 may be-6.283, -5.005, -4.973, -4.937, -4.823, and the like.

In some embodiments, the optical lens 100 satisfies the following relationship: 5.5< f2/CT2<8, wherein f2 is the focal length of the second lens, and CT2 is the thickness of the second lens on the optical axis. Optionally, f2/CT2 may take the values of 5.555, 6.652, 6.678, 7.178, 7.736, and the like.

In some embodiments, the optical lens 100 further satisfies the following relationship: 7.5< f6/CT6< 26.6; wherein f6 is the focal length of the sixth lens, and CT6 is the thickness of the sixth lens on the optical axis. Optionally, f6/CT6 may take the values of 7.533, 8.937, 9.317, 9.938, 26.593, and the like.

In some embodiments, the optical lens 100 further satisfies the following relationship: 2.5< (R2+ R3)/D12 < 11; as can be seen from the above, when the image-side surface L12 of the first lens element L1 is concave at the paraxial region, and the object-side surface L10 of the second lens element L2 is convex at the paraxial region, R2 is the radius of curvature of the image-side surface L12 of the first lens element L1 at the optical axis, R3 is the radius of curvature of the object-side surface L20 of the second lens element L2 at the optical axis, and D12 is the distance from the image-side surface of the first lens element to the object-side surface of the second lens element on the optical axis. Optionally, the value of (R2+ R3)/D12 may be 2.944, 6.216, 7.298, 7.691, 10.699, and the like.

The optical lens 100 of the present embodiment will be described in detail with reference to specific parameters.

First embodiment

As shown in fig. 1, the optical lens 100 disclosed in the first embodiment of the present application includes a first lens L1, a second lens L2, a stop 102, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, an optical filter 70, and a protective glass 80, which are sequentially disposed from an object side to an image side along an optical axis O. For refractive power distribution of the first lens element L1, the second lens element L2, the third lens element L3, the fourth lens element L4, the fifth lens element L5 and the sixth lens element L6, refer to the foregoing embodiments.

In the first embodiment, the object-side surface L10 of the first lens element L1 is planar at the paraxial region, and the image-side surface L12 is concave at the paraxial region. The object-side surface L20 of the second lens element L2 is convex at the paraxial region, and the image-side surface L22 is convex at the paraxial region. The object-side surface L30 of the third lens element L3 is concave at the paraxial region, and the image-side surface L32 is convex at the paraxial region. The object-side surface L40 of the fourth lens element L4 is convex at the paraxial region, and the image-side surface L44 is convex at the paraxial region. The object-side surface L50 of the fifth lens element L5 is concave at the paraxial region, and the image-side surface L52 is convex at the paraxial region. The object-side surface L60 of the sixth lens element L6 is convex at the paraxial region, and the image-side surface L62 is convex at the paraxial region.

In the first embodiment, the object-side surface L60 and the image-side surface L62 of the sixth lens element L6 are aspheric surfaces, and the aspheric surface formula can be referred to as follows:

wherein, X is the distance from any point on the aspheric surface to the plane tangent to the aspheric surface vertex, Y is the vertical distance between any point on the aspheric surface curve and the optical axis, R is the curvature radius of the aspheric surface vertex, k is the cone coefficient, and Ai is the coefficient corresponding to the i-th high-order term in the aspheric surface type formula.

The first lens L1, the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5 are all spherical surfaces. The first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5 and the sixth lens L6 are all made of glass.

Specifically, taking as an example that the focal length f of the optical lens 100 is 3.49mm, the FOV of the field angle of the optical lens 100 is 132.3 °, and the aperture size FNO is 2.0, the other parameters of the optical lens 100 are given in table 1 below. The elements of the optical lens 100 from the object side to the image side along the optical axis O are arranged in the order of the elements from top to bottom in table 1. In the same lens, the surface with the smaller surface number is the object side surface of the lens, and the surface with the larger surface number is the image side surface of the lens, and for example, the surface numbers 1 and 2 correspond to the first object side surface L10 and the first image side surface L12 of the first lens L1, respectively. The radii in table 1 are the curvature radii of the object-side or image-side surfaces of the respective surface numbers at the optical axis O. The first value in the "thickness" parameter list of the first lens element L1 is the thickness (center thickness) of the lens element along the optical axis O, and the second value is the distance from the image-side surface of the lens element to the object-side surface of the subsequent lens element along the optical axis O. The numerical value of the stop 102 in the "thickness" parameter column is the distance on the optical axis O from the stop 102 to the vertex of the object-side surface of the subsequent lens (the vertex refers to the intersection point of the lens and the optical axis O), the direction from the object-side surface of the first lens L1 to the image-side surface of the last lens is defined as the positive direction of the optical axis O, when the value is negative, it indicates that the stop 102 is disposed on the right side of the vertex of the object-side surface of the subsequent lens, and if the thickness of the stop 102 is positive, the stop 102 is disposed on the left side of the vertex of the object-side.

It is understood that the units of the radius Y, thickness, and focal length in table 1 are all mm. The refractive index, Abbe number, etc. in Table 1 were obtained at a reference wavelength (e.g., 587.6nm), and the focal length was obtained at 546.07 nm. Table 2 is a table of relevant parameters of the aspherical surface of the sixth lens L6 in table 1, where k is a cone coefficient and Ai is an aspherical coefficient of the ith order.

TABLE 1

TABLE 2

Number of noodles	11	12
			K	-1.76E+00	-2.54E+00
A4	1.20E-03	3.45E-03
			A6	4.62E-06	1.61E-05
A8	-1.34E-06	-4.07E-08
			A10	0.00E+00	0.00E+00
A12	0.00E+00	0.00E+00
			A14	0.00E+00	0.00E+00
A16	0.00E+00	0.00E+00
			A18	0.00E+00	0.00E+00
A20	0.00E+00	0.00E+00

Referring to fig. 2(a), fig. 2(a) shows a longitudinal spherical aberration curve of the optical lens 100 in the first embodiment at 435.8343nm, 486.1327nm, 546.0740nm, 587.5618nm, and 656.2725 nm. In fig. 2(a), the abscissa in the X-axis direction represents the focus shift, and the ordinate in the Y-axis direction represents the normalized field of view. As can be seen from fig. 2(a), the spherical aberration value of the optical lens 100 in the first embodiment is better, which illustrates that the imaging quality of the optical lens 100 in this embodiment is better.

Referring to fig. 2(B), fig. 2(B) is a diagram of astigmatism of light of the optical lens 100 in the first embodiment at a wavelength of 546.0740 nm. Wherein the abscissa in the X-axis direction represents the focus offset and the ordinate in the Y-axis direction represents the image height in mm. The astigmatism curves represent the meridional image plane curvature T and the sagittal image plane curvature S, and as can be seen from fig. 2(B), the astigmatism of the optical lens 100 is well compensated.

Referring to fig. 2(C), fig. 2(C) is a graph illustrating a distortion curve of the optical lens 100 at a wavelength of 546.0740nm in the first embodiment. Wherein the abscissa along the X-axis direction represents distortion and the ordinate along the Y-axis direction represents image height. As can be seen from fig. 2(C), the distortion of the optical lens 100 is well corrected at a wavelength of 546.0740 nm.

Second embodiment

Referring to fig. 3, fig. 3 is a schematic structural diagram of an optical lens 100 according to a second embodiment of the present application. The optical lens 100 includes a first lens L1, a second lens L2, a stop 102, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, an optical filter 70, and a cover glass 80, which are disposed in this order from the object side to the image side along an optical axis O. For refractive power distribution of the first lens element L1, the second lens element L2, the third lens element L3, the fourth lens element L4, the fifth lens element L5 and the sixth lens element L6, refer to the foregoing embodiments.

In the second embodiment, the object-side surface L10 of the first lens element L1 is planar at the paraxial region, and the image-side surface L12 is concave at the paraxial region. The object-side surface L20 of the second lens element L2 is convex at the paraxial region, and the image-side surface L22 is concave at the paraxial region. The object-side surface L30 of the third lens element L3 is concave at the paraxial region, and the image-side surface L32 is convex at the paraxial region. The object-side surface L40 of the fourth lens element L4 is convex at the paraxial region, and the image-side surface L44 is convex at the paraxial region. The object-side surface L50 of the fifth lens element L5 is concave at the paraxial region, and the image-side surface L52 is convex at the paraxial region. The object-side surface L60 of the sixth lens element L6 is convex at the paraxial region, and the image-side surface L62 is convex at the paraxial region.

In the second embodiment, the cases where the object-side surfaces and the image-side surfaces of the first lens element L1 through the sixth lens element L6 are spherical or aspherical are the same as those in the first embodiment, and the description thereof is omitted here.

In the second embodiment, the focal length f of the optical lens 100 is 3.49mm, the FOV of the field angle of the optical lens 100 is 121 °, and the aperture size FNO is 2.0.

Other parameters in the second embodiment are shown in the following tables 3 and 4, and the definitions of the parameters can be obtained from the description of the foregoing embodiments, which are not repeated herein.

It is understood that the units of the radius Y, the thickness, and the focal length in table 3 are all mm, and the refractive index, the abbe number, etc. in table 3 are all obtained at a reference wavelength (e.g., 587.6nm), and the focal length is obtained at 546.07 nm. Table 4 is a table of relevant parameters of the aspherical surface of the sixth lens L6 in table 3, where k is a cone coefficient and Ai is an aspherical coefficient of the ith order.

TABLE 3

TABLE 4

Number of noodles	11	12
			K	-9.90E+01	0.00E+00
A4	-2.12E-04	2.07E-03
			A6	-3.66E-04	-1.92E-04
A8	9.47E-06	6.17E-06
			A10	0.00E+00	0.00E+00
A12	0.00E+00	0.00E+00
			A14	0.00E+00	0.00E+00
A16	0.00E+00	0.00E+00
			A18	0.00E+00	0.00E+00
A20	0.00E+00	0.00E+00

Further, please refer to fig. 4(a), which shows a longitudinal spherical aberration curve of the optical lens 100 in the second embodiment at 435.8343nm, 486.1327nm, 546.0740nm, 587.5618nm, 656.2725 nm. In fig. 4(a), the abscissa in the X-axis direction represents the focus shift, and the ordinate in the Y-axis direction represents the normalized field of view. As can be seen from fig. 4(a), the spherical aberration value of the optical lens 100 in the second embodiment is better, which illustrates that the imaging quality of the optical lens 100 in this embodiment is better.

Referring to fig. 4(B), fig. 4(B) is a diagram of astigmatism of light of the optical lens 100 in the second embodiment at a wavelength of 546.0740 nm. Wherein the abscissa in the X-axis direction represents the focus offset and the ordinate in the Y-axis direction represents the image height in mm. The astigmatism curves represent the meridional image plane curvature T and the sagittal image plane curvature S, and as can be seen from fig. 4(B), the astigmatism of the optical lens 100 is well compensated.

Referring to fig. 4(C), fig. 4(C) is a graph illustrating a distortion curve of the optical lens 100 at a wavelength of 546.0740nm in the second embodiment. Wherein the abscissa along the X-axis direction represents distortion and the ordinate along the Y-axis direction represents image height. As can be seen from fig. 4(C), the distortion of the optical lens 100 is well corrected at a wavelength of 546.0740 nm.

Third embodiment

Referring to fig. 5, fig. 5 is a schematic structural diagram of an optical lens 100 according to a third embodiment of the present application. The optical lens 100 includes a first lens L1, a second lens L2, a stop 102, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, an optical filter 70, and a cover glass 80, which are disposed in this order from the object side to the image side along an optical axis O. For refractive power distribution of the first lens element L1, the second lens element L2, the third lens element L3, the fourth lens element L4, the fifth lens element L5 and the sixth lens element L6, refer to the foregoing embodiments.

In the third embodiment, the object-side surface L10 of the first lens element L1 is planar at the paraxial region, and the image-side surface L12 is concave at the paraxial region. The object-side surface L20 of the second lens element L2 is convex at the paraxial region, and the image-side surface L22 is convex at the paraxial region. The object-side surface L30 of the third lens element L3 is concave at the paraxial region, and the image-side surface L32 is convex at the paraxial region. The object-side surface L40 of the fourth lens element L4 is convex at the paraxial region, and the image-side surface L44 is convex at the paraxial region. The object-side surface L50 of the fifth lens element L5 is concave at the paraxial region, and the image-side surface L52 is convex at the paraxial region. The object-side surface L60 of the sixth lens element L6 is convex at the paraxial region, and the image-side surface L62 is convex at the paraxial region.

In the third embodiment, the cases where the object-side surfaces and the image-side surfaces of the first lens element L1 through the sixth lens element L6 are spherical or aspherical are the same as those in the first embodiment, and the description thereof is omitted here.

In the third embodiment, the focal length f of the optical lens 100 is 3.49mm, the FOV of the field angle of the optical lens 100 is 128.9 °, and the aperture size FNO is 2.0.

Other parameters in the third embodiment are given in the following tables 5 and 6, and the definitions of the parameters can be obtained from the foregoing description, which is not repeated herein. It is understood that the units of the radius Y, the thickness, and the focal length in table 5 are all mm, and the refractive index, the abbe number, etc. in table 5 are all obtained at a reference wavelength (e.g., 587.6nm), and the focal length is obtained at 546.07 nm. Table 6 is a table of relevant parameters of the aspherical surface of the sixth lens L6 in table 5, where k is a cone coefficient and Ai is an aspherical coefficient of the ith order.

TABLE 5

TABLE 6

Number of noodles	11	12
			K	-9.52E+01	-3.11E+01
A4	2.28E-03	7.75E-04
			A6	3.35E-05	2.60E-04
A8	-1.01E-06	-5.61E-06
			A10	0.00E+00	0.00E+00
A12	0.00E+00	0.00E+00
			A14	0.00E+00	0.00E+00
A16	0.00E+00	0.00E+00
			A18	0.00E+00	0.00E+00
A20	0.00E+00	0.00E+00

Further, please refer to fig. 6(a), which shows a longitudinal spherical aberration curve of the optical lens 100 in the third embodiment at 435.8343nm, 486.1327nm, 546.0740nm, 587.5618nm, 656.2725 nm. In fig. 6(a), the abscissa in the X-axis direction represents the focus shift, and the ordinate in the Y-axis direction represents the normalized field of view. As can be seen from fig. 6(a), the spherical aberration value of the optical lens 100 in the third embodiment is better, which illustrates that the imaging quality of the optical lens 100 in this embodiment is better.

Referring to fig. 6(B), fig. 6(B) is a diagram of astigmatism of light of the optical lens 100 in the third embodiment at a wavelength of 546.0740 nm. Wherein the abscissa in the X-axis direction represents the focus offset and the ordinate in the Y-axis direction represents the image height in mm. The astigmatism curves represent the meridional image plane curvature T and the sagittal image plane curvature S, and as can be seen from fig. 6(B), the astigmatism of the optical lens 100 is well compensated.

Referring to fig. 6(C), fig. 6(C) is a distortion curve diagram of the optical lens 100 in the third embodiment at a wavelength of 546.0740 nm. Wherein the abscissa along the X-axis direction represents distortion and the ordinate along the Y-axis direction represents image height. As can be seen from fig. 6(C), the distortion of the optical lens 100 is well corrected at a wavelength of 546.0740 nm.

Fourth embodiment

Fig. 7 is a schematic structural diagram of an optical lens 100 according to a fourth embodiment of the present disclosure. The optical lens 100 includes a first lens L1, a second lens L2, a stop 102, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, an optical filter 70, and a cover glass 80, which are disposed in this order from the object side to the image side along an optical axis O. For refractive power distribution of the first lens element L1, the second lens element L2, the third lens element L3, the fourth lens element L4, the fifth lens element L5 and the sixth lens element L6, refer to the foregoing embodiments.

In the fourth embodiment, the object-side surface L10 of the first lens element L1 is planar at the paraxial region, and the image-side surface L12 is concave at the paraxial region. The object-side surface L20 of the second lens element L2 is convex at the paraxial region, and the image-side surface L22 is convex at the paraxial region. The object-side surface L30 of the third lens element L3 is concave at the paraxial region, and the image-side surface L32 is convex at the paraxial region. The object-side surface L40 of the fourth lens element L4 is convex at the paraxial region, and the image-side surface L44 is convex at the paraxial region. The object-side surface L50 of the fifth lens element L5 is concave at the paraxial region, and the image-side surface L52 is convex at the paraxial region. The object-side surface L60 of the sixth lens element L6 is convex at the paraxial region, and the image-side surface L62 is convex at the paraxial region.

In the fourth embodiment, the cases where the object-side surfaces and the image-side surfaces of the first lens element L1 through the sixth lens element L6 are spherical or aspherical surfaces are the same as those in the first embodiment, and this embodiment is not repeated herein.

In the fourth embodiment, the focal length f of the optical lens 100 is 3.49mm, the FOV of the field angle of the optical lens 100 is 118.4 °, and the aperture size FNO is 2.0.

Other parameters in the fourth embodiment are shown in the following table 7 and table 8, and the definitions of the parameters can be obtained from the foregoing description, which is not repeated herein. It is understood that the units of the radius Y, thickness, and focal length in table 7 are mm. The refractive index, Abbe number, etc. in Table 7 were obtained at a reference wavelength (e.g., 587.6nm), and the focal length was obtained at 546.07 nm. Table 8 is a table of relevant parameters of the aspherical surface of the sixth lens L6 in table 7, where k is a cone coefficient and Ai is an aspherical coefficient of the ith order.

TABLE 7

TABLE 8

Number of noodles	11	12
			K	-8.71E+00	9.90E+01
A4	6.23E-04	2.26E-03
			A6	2.76E-05	2.97E-05
A8	-4.98E-06	-2.39E-06
			A10	0.00E+00	0.00E+00
A12	0.00E+00	0.00E+00
			A14	0.00E+00	0.00E+00
A16	0.00E+00	0.00E+00
			A18	0.00E+00	0.00E+00
A20	0.00E+00	0.00E+00

Further, referring to fig. 8(a), a longitudinal spherical aberration curve of the optical lens 100 in the fourth embodiment at 435.8343nm, 486.1327nm, 546.0740nm, 587.5618nm, and 656.2725nm is shown. In fig. 8(a), the abscissa in the X-axis direction represents the focus shift, and the ordinate in the Y-axis direction represents the normalized field of view. As can be seen from fig. 8(a), the spherical aberration value of the optical lens 100 in the fourth embodiment is better, which illustrates that the imaging quality of the optical lens 100 in this embodiment is better.

Referring to fig. 8(B), fig. 8(B) is a diagram of astigmatism of light of the optical lens 100 in the fourth embodiment at a wavelength of 546.0740 nm. Wherein the abscissa in the X-axis direction represents the focus offset and the ordinate in the Y-axis direction represents the image height in mm. The astigmatism curves represent the meridional image plane curvature T and the sagittal image plane curvature S, and as can be seen from fig. 8(B), the astigmatism of the optical lens 100 is well compensated.

Referring to fig. 8(C), fig. 8(C) is a distortion curve diagram of the optical lens 100 in the fourth embodiment at a wavelength of 546.0740 nm. Wherein the abscissa along the X-axis direction represents distortion and the ordinate along the Y-axis direction represents image height. As can be seen from fig. 8(C), the distortion of the optical lens 100 is well corrected at a wavelength of 546.0740 nm.

Fifth embodiment

Fig. 9 is a schematic structural diagram of an optical lens 100 according to a fifth embodiment of the present application. The optical lens 100 includes a first lens L1, a second lens L2, a stop 102, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, an optical filter 70, and a cover glass 80, which are disposed in this order from the object side to the image side along an optical axis O. For refractive power distribution of the first lens element L1, the second lens element L2, the third lens element L3, the fourth lens element L4, the fifth lens element L5 and the sixth lens element L6, refer to the foregoing embodiments.

In the fifth embodiment, the object-side surface L10 of the first lens element L1 is planar at the paraxial region, and the image-side surface L12 is concave at the paraxial region. The object-side surface L20 of the second lens element L2 is convex at the paraxial region, and the image-side surface L22 is convex at the paraxial region. The object-side surface L30 of the third lens element L3 is concave at the paraxial region, and the image-side surface L32 is convex at the paraxial region. The object-side surface L40 of the fourth lens element L4 is convex at the paraxial region, and the image-side surface L44 is convex at the paraxial region. The object-side surface L50 of the fifth lens element L5 is concave at the paraxial region, and the image-side surface L52 is convex at the paraxial region. The object-side surface L60 of the sixth lens element L6 is convex at the paraxial region, and the image-side surface L62 is convex at the paraxial region.

In the fifth embodiment, the cases where the object-side surfaces and the image-side surfaces of the first lens element L1 through the sixth lens element L6 are spherical or aspherical surfaces are the same as those in the first embodiment, and the description thereof is omitted here.

In the fifth embodiment, the focal length f of the optical lens 100 is 3.49mm, the FOV of the field angle of the optical lens 100 is 118.5 °, and the aperture size FNO is 2.0.

The other parameters in the fifth embodiment are given in the following tables 9 and 10, and the definitions of the parameters can be obtained from the foregoing description, which is not repeated herein. It is understood that the units of the radius Y, the thickness, and the focal length in table 9 are mm, the refractive index, the abbe number, etc. in table 9 are obtained at a reference wavelength (e.g., 587.6nm), and the focal length is obtained at 546.07 nm. Table 10 is a table of relevant parameters of the aspherical surface of the sixth lens L6 in table 9, where k is a cone coefficient and Ai is an aspherical coefficient of the ith order.

TABLE 9

Watch 10

Number of noodles	11	12
			K	-1.57E+01	4.65E+01
A4	5.73E-04	1.89E-03
			A6	9.36E-06	3.64E-05
A8	-4.94E-06	-4.03E-06
			A10	0.00E+00	0.00E+00
A12	0.00E+00	0.00E+00
			A14	0.00E+00	0.00E+00
A16	0.00E+00	0.00E+00
			A18	0.00E+00	0.00E+00
A20	0.00E+00	0.00E+00

Further, referring to fig. 10(a), a longitudinal spherical aberration curve of the optical lens 100 in the fifth embodiment at wavelengths of 435.8343nm, 486.1327nm, 546.0740nm, 587.5618nm, and 656.2725nm is shown. In fig. 10(a), the abscissa in the X-axis direction represents the focus shift, and the ordinate in the Y-axis direction represents the normalized field of view. As can be seen from fig. 10(a), the spherical aberration value of the optical lens 100 in the fifth embodiment is better, which illustrates that the imaging quality of the optical lens 100 in this embodiment is better.

Referring to fig. 10(B), fig. 10(B) is a diagram of astigmatism of light of the optical lens 100 in the fifth embodiment at a wavelength of 546.0740 nm. Wherein the abscissa in the X-axis direction represents the focus offset and the ordinate in the Y-axis direction represents the image height in mm. The astigmatism curves represent the meridional image plane curvature T and the sagittal image plane curvature S, and as can be seen from fig. 10(B), the astigmatism of the optical lens 100 is well compensated.

Referring to fig. 10(C), fig. 10(C) is a graph illustrating a distortion curve of the optical lens 100 at a wavelength of 546.0740nm in the fifth embodiment. Wherein the abscissa along the X-axis direction represents distortion and the ordinate along the Y-axis direction represents image height. As can be seen from fig. 10(C), the distortion of the optical lens 100 is well corrected at a wavelength of 546.0740 nm.

Please refer to table 11, table 11 is a summary table of ratios of relations satisfied by the optical lens 100 in the first to fifth embodiments:

TABLE 11

Referring to fig. 11, the present application further discloses a camera module 200, which includes an image sensor 201 and the optical lens 100 according to any of the first to fifth embodiments, wherein the image sensor 201 is disposed on an image side of the optical lens 100. The optical lens 100 is configured to receive an optical signal of a subject and project the optical signal to the image sensor 201, and the image sensor 201 is configured to convert the optical signal corresponding to the subject into an image signal. And will not be described in detail herein. It can be understood that the camera module 200 having the optical lens 100 has all the technical effects of the optical lens 100, namely, effectively improving the resolution and the depth of field of the optical lens, and realizing long-distance detail imaging and clear imaging in a wide angle range, and simultaneously realizing the miniaturization design of the optical lens. Since the above technical effects have been described in detail in the embodiments of the optical lens 100, they are not described herein again.

Referring to fig. 12, the present application further discloses an electronic device 300, wherein the electronic device 300 includes a housing 301 and the camera module 200, and the camera module 200 is disposed on the housing 301. The electronic device 300 may be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a smart watch, a monitor, and the like. It can be understood that the electronic device 300 having the camera module 200 also has all the technical effects of the optical lens 100. The optical lens has the advantages that the resolution and the depth of field range of the optical lens are effectively improved, long-distance detail imaging and clear imaging in a large-angle range are realized, and meanwhile the miniaturization design of the optical lens can be realized. Since the above technical effects have been described in detail in the embodiments of the optical lens 100, they are not described herein again.

Referring to fig. 13, the present application further discloses an automobile 400, where the automobile 400 includes an automobile body 401 and the camera module 200, and the camera module 200 is disposed on the automobile body 401 to obtain environmental information around the automobile body 401. It can be understood that the automobile 400 having the camera module 200 also has all the technical effects of the optical lens 100. The optical lens has the advantages that the resolution and the depth of field range of the optical lens are effectively improved, long-distance detail imaging and clear imaging in a large-angle range are realized, and meanwhile the miniaturization design of the optical lens can be realized. Since the above technical effects have been described in detail in the embodiments of the optical lens 100, they are not described herein again.

The optical lens, the camera module, the electronic device thereof, and the automobile disclosed in the embodiments of the present invention are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present invention, and the description of the above embodiments is only used to help understand the optical lens, the camera module, the electronic device thereof, the automobile, and the core idea thereof; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. An optical lens, characterized in that: the optical lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are arranged in sequence from an object side to an image side along an optical axis;

the optical lens satisfies the following relationship:

3.5< TTL/d16<6.7, where TTL is a distance on the optical axis from an object-side surface of the first lens element to an image plane of the optical lens system, and d16 is a sum of air spaces on the optical axis from the first lens element to the sixth lens element of the optical lens system.

2. An optical lens according to claim 1, characterized in that: the object side surface and/or the image side surface of at least one of the first lens element to the sixth lens element is/are aspheric;

vd <20 or Vd > 75.

3. An optical lens according to claim 1, characterized in that: the optical lens satisfies the following relation:

3.5<f3/f<11.2；

4. An optical lens according to claim 1, characterized in that: the optical lens satisfies the following relation:

-8<f12/f3456<-2；

wherein f12 is a combined focal length of the first lens and the second lens, and f3456 is a combined focal length of the third lens, the fourth lens, the fifth lens, and the sixth lens.

5. An optical lens according to claim 1, characterized in that: the optical lens satisfies the following relation:

2.4<f45/f<4.4；

6. An optical lens according to claim 1, characterized in that: the optical lens satisfies the following relation:

-6.3<f1/CT1<-4.5；

7. An optical lens according to claim 1, characterized in that: the optical lens satisfies the following relation:

5.5< f2/CT2<8, wherein f2 is the focal length of the second lens, and CT2 is the thickness of the second lens on the optical axis.

8. An optical lens according to claim 1, characterized in that: the optical lens satisfies the following relation:

7.5<f6/CT6<26.6；

9. An optical lens according to claim 1, characterized in that: the optical lens satisfies the following relation:

2.5< (R2+ R3)/D12 <11, wherein R2 is a radius of curvature of an image-side surface of the first lens at the optical axis, R3 is a radius of curvature of an object-side surface of the second lens at the optical axis, and D12 is a distance from the image-side surface of the first lens to the object-side surface of the second lens on the optical axis.

10. The utility model provides a module of making a video recording which characterized in that: the camera module comprises an image sensor and the optical lens of any one of claims 1 to 9, wherein the image sensor is arranged on the image side of the optical lens.

11. An electronic device, characterized in that: the electronic device comprises a housing and the camera module of claim 10, the camera module being disposed on the housing.

12. An automobile, characterized in that the automobile comprises an automobile body and the camera module set according to claim 10, wherein the camera module set is arranged on the automobile body to obtain environmental information around the automobile body.