Optical imaging lens, imaging device and electronic device

Abstract

An optical imaging lens including a first lens element, an aperture, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element arranged in sequence from an object side to an image side along an optical axis is provided. The optical imaging lenses include, from an object side to an image side, the first lens having negative refractive power and including an object-side surface being convex and an image-side surface being concave, the aperture, the second lens having positive refractive power and including an object-side surface being convex and an image-side surface being convex, the third lens having negative refractive power and including an object-side surface being convex and an image-side surface being concave, the forth lens having positive refractive power and including an object-side surface being convex and an image-side surface being convex, the fifth lens having negative refractive power and including an object-side surface being concave and an image-side surface being convex, and the sixth lens having negative refractive power and including an object-side surface being concvex and an image-side surface being concave. The optical imaging lenses include a total of six elements.

Description

Technical Field

[0001] This invention relates to an optical imaging lens assembly and an imaging device, particularly an optical imaging lens assembly that can be used in general electronic devices, automotive electronic devices or driving photography devices, and an imaging device and electronic device having this optical imaging lens assembly. Prior Technology

[0002] Advances in semiconductor manufacturing technology have enabled the miniaturization of image sensing elements in photographic devices (such as CCD and CMOS image sensors), thus improving the manufacturing convenience of miniaturized cameras and driving a trend of digital electronic products incorporating these devices to provide image capture capabilities. However, in addition to miniaturization, photographic devices are also evolving towards higher resolution and improved lens specifications to meet consumer demands, such as larger aspect ratios, wider field of view, and lower manufacturing costs.

[0003] With the diversification of electronic imaging devices and their increasingly wide range of applications, such as Advanced Driver Assistance Systems (ADAS), dashcams, home surveillance cameras, smartphones, and human-computer interaction devices, the design requirements for optical lenses have become more diverse. In the case of automotive photography devices, to clearly identify obstacles around the vehicle or oncoming traffic from both sides, it is necessary to improve the resolution and brightness of the optical lens, while also requiring high adaptability to ambient temperature. Furthermore, to effectively correct various aberrations, especially in distance measurement or object recognition applications, significant distortion aberrations in the captured image can easily lead to errors in distance calculation or image recognition.

[0004] Therefore, designing an optical imaging device that achieves a balance between miniaturization, high resolution, and good optical imaging quality has become the goal of researchers in this field. Summary of the Invention

[0005] Therefore, in order to solve the above problems, the present invention provides an optical imaging lens assembly, comprising sequentially from an object side to an image side: a first lens having negative refractive power, an object-side surface thereof being convex, and an image-side surface thereof being concave; an aperture; a second lens having positive refractive power, an object-side surface thereof being convex, and an image-side surface thereof being convex; a third lens having negative refractive power, an object-side surface thereof being concave, and an image-side surface thereof being convex; a fourth lens having positive refractive power, an object-side surface thereof being convex, and an image-side surface thereof being convex; a fifth lens having negative refractive power, an object-side surface thereof being concave, and an image-side surface thereof being convex; a sixth lens having positive refractive power, an object-side surface thereof being convex, and an image-side surface thereof being concave; wherein, a radius of curvature of the image-side surface of the sixth lens is R12, a focal length of the fifth lens is f5, a focal length of the sixth lens is f6, a focal length of the optical imaging lens assembly is EFL, and the following relational expressions are satisfied: 0.22 < R12 / f6 < 1.4; and 1.3 < (f5+f6) / EFL < 7.9.

[0006] The present invention further provides an optical imaging lens assembly, comprising sequentially from an object side to an image side: a first lens having negative refractive power, an object-side surface thereof being convex, and an image-side surface thereof being concave; an aperture; a second lens having positive refractive power, an object-side surface thereof being convex, and an image-side surface thereof being convex; a third lens having negative refractive power, an object-side surface thereof being concave, and an image-side surface thereof being convex; a fourth lens having positive refractive power, an object-side surface thereof being convex, and an image-side surface thereof being convex; a fifth lens having negative refractive power, an object-side surface thereof being concave, and an image-side surface thereof being convex; a sixth lens having positive refractive power, an object-side surface thereof being convex, and an image-side surface thereof being concave; wherein, a radius of curvature of the image-side surface of the sixth lens is R12, a focal length of the fifth lens is f5, a focal length of the sixth lens is f6, a thickness of the fifth lens on an optical axis is CT5, a thickness of the sixth lens on an optical axis is CT6, and the following relational expressions are satisfied: 0.22 < R12 / f6 < 1.4; and 1.9 < (f5+f6) / (CT5+CT6) < 8.6.

[0007] According to an embodiment of the present invention, wherein a radius of curvature of the object-side surface of the sixth lens is R11, a focal length of the sixth lens is f6, and the following relational expression is satisfied: 0.17 < R11 / f6 < 0.4.

[0008] According to an embodiment of the present invention, wherein a radius of curvature of the object-side surface of the first lens is R1, a focal length of the optical imaging lens assembly is EFL, and the following relational expression is satisfied: 6.7 < R1 / EFL < 9.4.

[0009] According to an embodiment of the present invention, the radius of curvature of the image-side surface of the sixth lens is R12, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: -2.2 <R12 / EFL<5。

[0010] According to an embodiment of the present invention, the focal length of the sixth lens is f6, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: 3.2 <f6 / EFL<10.3。

[0011] According to an embodiment of the present invention, the thickness of the second lens is CT2, the thickness of the third lens is CT3, and the air gap between the second and third lenses is AT23, which satisfies the following relationship: -10<(CT3-CT2) / AT23<-2.8.

[0012] According to an embodiment of the present invention, the thickness of the first lens is CT1, and the thickness of the second lens is CT2, which satisfy the following relationship: 0.3 <CT1 / CT2<0.62。

[0013] According to an embodiment of the present invention, the air gap between the first and second lenses is AT12, and the focal length of the optical imaging lens group is EFL, satisfying the following relationship: 1.2 <AT12 / EFL<1.5。

[0014] According to an embodiment of the present invention, the focal length of the optical imaging lens group is EFL, and the thickness of the second lens is CT2, which satisfies the following relationship: 1.2 <EFL / CT2<2.1。

[0015] According to an embodiment of the present invention, the total length of the optical imaging lens group is TTL, and the thickness of the second lens is CT2, satisfying the following relationship: 6.9 <TTL / CT2<10.6。

[0016] According to an embodiment of the present invention, half of the maximum field of view of the optical imaging lens group is HFOV, and the half-image height of the optical imaging lens group is ImgH, which satisfies the following relationship: 23 <HFOV / ImgH<26。

[0017] According to an embodiment of the present invention, the radius of curvature of the object plane of the second lens is R3, the radius of curvature of the image plane of the second lens is R4, and the focal length of the second lens is f2, which satisfy the following relationship: 0.06 < (R3 + R4) / f2 < 0.21.

[0018] According to an embodiment of the present invention, the radius of curvature of the object surface of the second lens is R3, and the radius of curvature of the image surface of the second lens is R4, which satisfy the following relationship: 0.02 < (R3 + R4) / (R3 - R4) < 0.07.

[0019] According to an embodiment of the present invention, the combined focal length of the fourth to sixth lenses is f456, the focal length of the first lens is f1, the focal length of the second lens is f2, and the focal length of the third lens is f3, which satisfies the following relationship: -0.8 <f456 / (f1+f2+f3)<-0.6。

[0020] According to an embodiment of the present invention, the sum of the lens thicknesses of each lens in the optical imaging lens group along the optical axis is ΣCT, and the thickness of the fifth lens is CT5, which satisfies the following relationship: 11 < ΣCT / CT5 < 16.1.

[0021] According to an embodiment of the present invention, the sixth lens has a thickness of CT6 and a focal length of f6, which satisfy the following relationship: 0.07 <CT6 / f6<0.14。

[0022] According to an embodiment of the present invention, the combined focal length of the first to third lenses is f123, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: -5.6 <f123 / EFL<-3.2。

[0023] According to an embodiment of the present invention, the radius of curvature of the object side of the sixth lens is R11, the radius of curvature of the image side of the sixth lens is R12, and the focal length of the sixth lens is f6, which satisfies the following relationship: 1 < (R11 * R12) / f6 < 5.1.

[0024] According to an embodiment of the present invention, the focal length of the first lens is f1, the focal length of the second lens is f2, and the combined focal length of the first lens to the second lens is f12, which satisfies the following relationship: 0.2 < (f1 + f2) / f12 < 0.23.

[0025] According to an embodiment of the present invention, the focal length of the third lens is f3, the focal length of the fourth lens is f4, and the combined focal length of the third and fourth lenses is f34, which satisfies the following relationship: -0.9 < (f3 + f4) / f34 < -0.4.

[0026] According to an embodiment of the present invention, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, and the combined focal length of the fifth to sixth lenses is f56, which satisfies the following relationship: -2.8 < (f5 + f6) / f56 < -0.2.

[0027] The present invention further provides an imaging device, which includes an optical imaging lens group as described above and an image sensing element, wherein the image sensing element is disposed on the imaging surface of the optical imaging lens group.

[0028] The present invention further provides an electronic device comprising the imaging device as described above. Simple Explanation of the Diagram

[0029] [Figure 1A] is a schematic diagram of the optical imaging lens group of the first embodiment of the present invention; [Figure 1B] From left to right, the images show astigmatism, distortion, and longitudinal spherical aberration of the first embodiment of the present invention. [Figure 2A] is a schematic diagram of the optical imaging lens group according to the second embodiment of the present invention; [Figure 2B] From left to right, the figures show the astigmatism aberration diagram, distortion diagram, and longitudinal spherical aberration diagram of the second embodiment of the present invention; [Figure 3A] is a schematic diagram of the optical imaging lens assembly according to the third embodiment of the present invention; [Figure 3B] From left to right, the figures show the astigmatism aberration diagram, distortion diagram, and longitudinal spherical aberration diagram of the third embodiment of the present invention; [Figure 4A] is a schematic diagram of the optical imaging lens assembly according to the fourth embodiment of the present invention; [Figure 4B] From left to right, the figures show the astigmatism aberration diagram, distortion diagram, and longitudinal spherical aberration diagram of the fourth embodiment of the present invention; [Figure 5A] is a schematic diagram of the optical imaging lens group according to the fifth embodiment of the present invention; [Figure 5B] From left to right, the figures show the astigmatism aberration diagram, distortion diagram, and longitudinal spherical aberration diagram of the fifth embodiment of the present invention; [Figure 06] is a schematic diagram of an automotive electronic device according to one of the sixth embodiments of the present invention. [Figure 07] is a schematic diagram of a general electronic device according to the seventh embodiment of the present invention. Implementation

[0030] In the following embodiments, each lens of the optical camera lens assembly may be made of glass or plastic, and is not limited to the materials listed in the embodiments. When the lens material is glass, the lens surface can be processed by grinding or molding; in addition, due to the temperature resistance and high hardness of glass itself, the impact of environmental changes on the optical camera lens assembly can be reduced, thereby extending the service life of the optical camera lens assembly. When the lens material is plastic, it is beneficial to reduce the weight of the optical camera lens assembly and reduce production costs.

[0031] In embodiments of the present invention, each lens includes an object-side surface facing the subject and an image-side surface facing the imaging plane. The surface shape of each lens is defined based on the shape of the surface near the optical axis (paraxial region). For example, describing the object-side surface of a lens as convex means that the lens is convex in the object-side region near the optical axis; that is, although the lens surface is described as convex in the embodiment, the surface may be convex or concave in the region away from the optical axis (off-axis region). The paraxial shape of each lens is determined by whether the radius of curvature of the surface is positive or negative. For example, if the radius of curvature of the object-side surface of a lens is positive, then the object-side surface is convex; conversely, if its radius of curvature is negative, then the object-side surface is concave. As for the image-side surface of a lens, if its radius of curvature is positive, then the image-side surface is concave; conversely, if its radius of curvature is negative, then the image-side surface is convex.

[0032] In embodiments of the present invention, the object-side and image-side surfaces of each lens can be spherical or aspherical. Using aspherical surfaces on lenses helps correct imaging aberrations in optical imaging lens assemblies, such as spherical aberration, and reduces the number of optical lens elements used. However, using aspherical lenses increases the overall cost of the optical imaging lens assembly. Although in embodiments of the present invention, some optical lenses use spherical surfaces, they can still be designed as aspherical surfaces as needed; or, some optical lenses use aspherical surfaces, but can still be designed as spherical surfaces as needed.

[0033] In embodiments of the present invention, the total track length (TTL) of the optical imaging lens group is defined as the distance along the optical axis from the object side of the first lens of the optical imaging lens group to the imaging surface. The imaging height of this optical imaging lens group is called the maximum image height (ImgH); when an image sensing element is disposed on the imaging surface, the maximum image height (ImgH) represents half the diagonal length of the effective sensing area of ​​the image sensing element. In the following embodiments, the units for the radius of curvature of all lenses, lens thickness, distance between lenses, total track length (TTL) of the lens group, maximum image height (ImgH), and focal length are all expressed in millimeters (mm).

[0034] The present invention provides an optical imaging lens group, which includes a first lens, an aperture, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens in sequence from the object side to the image side.

[0035] The first lens has negative refractive power, with its object-side surface being convex and its image-side surface being concave. Preferably, the first lens can be made of glass to suit environments with large temperature differences. In embodiments of the invention, the object-side surface and / or image-side surface of the first lens can be spherical to reduce manufacturing costs and facilitate processing.

[0036] The second lens has positive refractive power, and its object-side surface can be convex, while its image-side surface is also convex. Preferably, the second lens can be made of glass to suit environments with large temperature differences. In embodiments of the invention, the object-side surface and / or image-side surface of the second lens can be aspherical, which helps to improve spherical aberration.

[0037] The third lens can have negative refractive power, with its object-side surface being convex and its image-side surface being concave. Preferably, the third lens can be made of plastic to reduce manufacturing costs and facilitate processing. In embodiments of the invention, the object-side surface and / or image-side surface of the third lens can be aspherical, which helps to improve spherical aberration.

[0038] The fourth lens can be positively refractive, and its object-side surface can be convex, as can its image-side surface. Preferably, the fourth lens can be made of plastic to reduce manufacturing costs and facilitate processing. In embodiments of the present invention, the object-side surface and / or image-side surface of the fourth lens can be aspherical, which helps to improve spherical aberration.

[0039] The fifth lens can have negative refractive power, its object-side surface can be concave, and its image-side surface can be convex. Preferably, the fifth lens can be made of plastic to reduce manufacturing costs and facilitate processing. In embodiments of the present invention, the object-side surface and / or image-side surface of the fifth lens can be aspherical, which helps to improve spherical aberration.

[0040] The sixth lens can be positively refractive, with its object-side surface being convex and its image-side surface being concave. Preferably, the sixth lens can be made of plastic to reduce manufacturing costs and facilitate processing. In embodiments of the present invention, the object-side surface and / or image-side surface of the sixth lens can be aspherical, which helps to improve spherical aberration.

[0041] The radius of curvature of the image side surface of the sixth lens in this optical imaging lens group is R12, and the focal length of the sixth lens is f6, which satisfies the following relationship: 0.22 <R12 / f6<1.4(1)。

[0042] When relation (1) is satisfied, the surface shape and refractive power of the sixth lens can be adjusted, which helps to compress the volume and balance the volume distribution between the object side and the image side.

[0043] The fifth lens of the optical camera lens group has a focal length of f5, the sixth lens has a focal length of f6, and the effective focal length of the optical camera lens group is EFL, which satisfies the following relationship: 1.3 < (f5 + f6) / EFL < 7.9 (2).

[0044] When relation (2) is satisfied, the fifth to sixth lenses can be used to adjust the volume distribution and reduce aberrations such as spherical aberration produced by a single lens.

[0045] The fifth lens of the optical imaging lens group has a focal length of f5, the sixth lens has a focal length of f6, the thickness of the fifth lens on the optical axis is CT5, and the thickness of the sixth lens on the optical axis is CT6, which satisfies the following relationship: 1.9<(f5+f6) / (CT5+CT6)<8.6(3).

[0046] When the relation (3) is satisfied, the changing trends of spherical aberration and chromatic aberration of the optical system can be effectively controlled, thereby reducing the difficulty of correcting spherical aberration and chromatic aberration of the optical system. []

[0047] The radius of curvature of the side surface of the sixth lens in this optical imaging lens group is R11, and the focal length of the sixth lens is f6, which satisfies the following relationship: 0.17 <R11 / f6<0.4(4)。

[0048] When relation (4) is satisfied, the surface shape and refractive power of the fourth lens can be adjusted, which helps to compress the volume and balance the volume distribution between the object side and the image side.

[0049] The radius of curvature of the object surface of the first lens in the optical imaging lens group is R1, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: 6.7 <R1 / EFL<9.4(5)。

[0050] When relation (5) is satisfied, it helps to configure the convex and concave shapes of the two surfaces of the first lens to correct the Petzval sum and make the imaging surface flatter.

[0051] The radius of curvature of the side surface of the sixth lens in this optical imaging lens group is R12, and the focal length of this optical imaging lens group is EFL, which satisfies the following relationship: -2.2 <R12 / EFL<5。(6)

[0052] When relation (6) is satisfied, it helps to configure the convex and concave surfaces of the six lens to correct the Petzval sum and make the imaging surface flatter.

[0053] The sixth lens of this optical imaging lens group has a focal length of f6, and the focal length of the entire optical imaging lens group is EFL, which satisfies the following relationship: 3.2 <f6 / EFL<10.3(7)。

[0054] When relation (7) is satisfied, the refractive power of the sixth lens can be adjusted to correct aberrations.

[0055] The thickness of the second lens in the optical imaging lens group is CT2, the thickness of the third lens is CT3, and the air gap between the second and third lenses is AT23, which satisfies the following relationship: -10<(CT3-CT2) / AT23<-2.8(8).

[0056] When relation (8) is satisfied, the second lens and the third lens can work together to achieve a balance between aperture size and volume distribution.

[0057] The thickness of the first lens in this optical imaging lens assembly is CT1, and the thickness of the second lens is CT2, which satisfy the following relationship: 0.3 <CT1 / CT2<0.62(9)。

[0058] When relation (9) is satisfied, the first lens and the second lens can cooperate with each other, which helps to correct aberrations and compress the outer diameter of the object-side end of the optical lens for photography.

[0059] The air gap between the first and second lenses of the optical imaging lens group is AT12, and the focal length of the optical imaging lens group is EFL, satisfying the following relationship: 1.2 <AT12 / EFL<1.5(10)。

[0060] When the relation (10) is satisfied, the lens distribution can be adjusted, which helps to balance the volume distribution of the imaging system lens group.

[0061] The focal length of the optical imaging lens group is EFL, and the thickness of the second lens is CT2, which satisfies the following relationship: 1.2 <EFL / CT2<2.1(11)。

[0062] When the relation (11) is satisfied, the ratio of focal length to the thickness of the second lens can be adjusted, which helps to increase the field of view.

[0063] The total length of the optical imaging lens group is TTL, and the thickness of the second lens is CT2, which satisfies the following relationship: 6.9 <TTL / CT2<10.6(12)。

[0064] When the relationship (12) is satisfied, by reasonably controlling the relationship between the center thickness and the total length of the first lens, it is beneficial to correct the aberrations in the on-axis field of view and improve the imaging quality of the optical lens.

[0065] The optical imaging lens group has a maximum field of view of half HFOV and a half-image height of ImgH, which satisfies the following relationship: 23 <HFOV / ImgH<26(13)。

[0066] When relation (13) is satisfied, it is beneficial to maintain the half-view angle while increasing the resolution of the image sensor. [ <s>< / s> ]

[0067] The second lens of the optical imaging lens group has a radius of curvature of R3 on the object surface, a radius of curvature of R4 on the image surface, and a focal length of f2, which satisfies the following relationship: 0.06 < (R3 + R4) / f2 < 0.21 (14).

[0068] When relation (14) is satisfied, the surface shape and refractive power of the second lens can be adjusted to correct aberrations.

[0069] The radius of curvature of the object surface of the second lens of the optical imaging lens group is R3, and the radius of curvature of the image surface of the second lens is R4, which satisfies the following relationship: 0.02<(R3+R4) / (R3-R4)<0.07(15).

[0070] When the relation (15) is satisfied, the object-side curvature radius and the image-side surface curvature radius of the second lens can be adjusted, which helps to improve the central imaging quality.

[0071] The combined focal length of the fourth to sixth lenses in this optical imaging lens group is f456, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the thickness of the first lens is CT1, and the thickness of the second lens is CT2, satisfying the following relationship: -0.8 <f456 / (f1+f2+f3)<-0.6(16)。

[0072] When relation (16) is satisfied, the fourth to sixth lenses can be made to work together to compress volume and correct aberrations.

[0073] The sum of the lens thicknesses of all lenses in the optical imaging lens group along the optical axis is ΣCT, and the thickness of the fifth lens is CT5, which satisfies the following relationship: 11 < ΣCT / CT5 < 16.1. (17)

[0074] When relation (17) is satisfied, the fifth lens has sufficient thickness to help correct higher-order aberrations produced by the wide-angle photographic lens system; and the lens distribution can be adjusted to compress the volume.

[0075] The sixth lens of this optical imaging lens group has a thickness of CT6 and a focal length of f6, which satisfies the following relationship: 0.07 <CT6 / f6<0.14。 (18)

[0076] When relation (18) is satisfied, the thickness of the sixth lens can be adjusted to facilitate the thinning of electronic devices.

[0077] The combined focal length of the first to third lenses in this optical imaging lens group is f / 123, and the focal length of the entire optical lens group is EFL, which satisfies the following relationship: -5.6 <f123 / EFL<-3.2。(19)

[0078] When relation (19) is satisfied, the first to third lenses can be made to cooperate with each other to compress volume and correct aberrations.

[0079] The sixth lens of the optical imaging lens group has an object-side radius of curvature of R11, an image-side radius of curvature of R12, and a focal length of f6, which satisfies the following relationship: 1 < (R11 * R12) / f6 < 5.1. (20)

[0080] When relation (20) is satisfied, the surface shape and refractive power of the sixth lens can be adjusted, which helps to compress the volume and balance the volume distribution of the object side and the image side.

[0081] The focal length of the first lens in the optical imaging lens group is f1, the focal length of the second lens is f2, and the combined focal length of the first and second lenses is f12, which satisfies the following relationship: 0.2 < (f1 + f2) / f12 < 0.23. (21)

[0082] When relation (21) is satisfied, the first and second lenses can be made to cooperate to compress volume and correct aberrations.

[0083] The focal length of the third lens in the optical imaging lens group is f3, the focal length of the fourth lens is f4, and the combined focal length of the third and fourth lenses is f34, which satisfies the following relationship: -0.9 < (f3 + f4) / f34 < -0.4. (22)

[0084] When relation (22) is satisfied, the third to fourth lenses can be made to work together to compress volume and correct aberrations.

[0085] The fifth lens of the optical imaging lens group has a focal length of f5, the sixth lens has a focal length of f6, and the combined focal length of the fifth to sixth lenses is f56, which satisfies the following relationship: -2.8 < (f5 + f6) / f56 < -0.2. (23)

[0086] When relation (23) is satisfied, the fifth and sixth lenses can be made to work together to compress volume and correct aberrations. First Embodiment

[0087] Referring to Figures 1A and 1B, Figure 1A is a schematic diagram of the optical imaging lens group of the first embodiment of the present invention. Figure 1B shows, from left to right, the astigmatism / field curvature, f-tanθ distortion, and longitudinal spherical aberration diagrams of the first embodiment of the present invention.

[0088] As shown in Figure 1A, the optical imaging lens group 10 of the first embodiment includes, from the object side to the image side, a first lens 11, an aperture ST, a second lens 12, a third lens 13, a fourth lens 14, a fifth lens 15, and a sixth lens 16. This optical imaging lens group 10 may further include a filter element 17 and an imaging surface 101. An image sensing element 102 may be disposed on the imaging surface 101 to form an imaging device (not otherwise labeled).

[0089] The first lens 11 has negative refractive power, its object-side surface 11a is convex and its image-side surface 11b is concave, and both the object-side surface 11a and the image-side surface 11b are spherical. The material of the first lens 11 includes glass, but is not limited thereto.

[0090] The second lens 12 has positive refractive power, its object-side surface 12a is convex, its image-side surface 12b is convex, and both the object-side surface 12a and the image-side surface 12b are aspherical. The material of the second lens 12 includes glass, but is not limited thereto.

[0091] The third lens 13 has negative refractive power, its object-side surface 13a is convex and its image-side surface 13b is concave, and both the object-side surface 13a and the image-side surface 13b are aspherical. The material of the third lens 13 includes plastic, but is not limited thereto.

[0092] The fourth lens 14 has positive refractive power, with its object-side surface 14a being convex and its image-side surface 14b being convex, and both the object-side surface 14a and the image-side surface 14b being aspherical. The material of the fourth lens 14 includes plastic, but is not limited to this.

[0093] The fifth lens 15 has negative refractive power. Its object-side surface 15a is concave, and its image-side surface 15b is convex. Both the object-side surface 15a and the image-side surface 15b are aspherical. The material of the fifth lens 15 includes plastic, but is not limited to this.

[0094] The sixth lens 16 has positive refractive power, with its object-side surface 16a being convex and its image-side surface 16b being concave, and both the object-side surface 16a and the image-side surface 16b being aspherical. The material of the sixth lens 16 includes plastic, but is not limited thereto.

[0095] The filter element 17 is disposed between the sixth lens 16 and the imaging surface 101 to filter out light in a specific wavelength range and allow the desired wavelength to pass through, such as an ultraviolet or infrared light filtering element. The second surfaces 17a and 17b of the filter element 17 are both planar and made of glass.

[0096] The image sensing element 102 is, for example, a charge-coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor.

[0097] Please refer to Table 1 below, which contains detailed optical data for the optical imaging lens group 10 of the first embodiment of the present invention. In the table, the object-side surface 11a of the first lens 11 is labeled as surface 11a, the image-side surface 11b is labeled as surface 11b, and so on for the other lens surfaces. The values ​​in the distance column of the table represent the distance from that surface to the next surface along the optical axis I. For example, the distance from the object-side surface 11a to the image-side surface 11b of the first lens 11 is 0.771 mm, representing that the thickness of the first lens 11 is 0.771 mm. The distance AT23 from the image-side surface 11b of the second lens 11 to the object-side surface 12a of the third lens 12 is 0.110 mm. Other distances can be deduced similarly and will not be repeated below. In the first embodiment, the effective focal length of the optical imaging lens group 10 is EFL, and the maximum half field of view (HFOV) of the overall optical imaging lens group 10 is also listed in Table 1. First Embodiment TTL=13.31mm,EFL=2.59mm,FNO=2.2,HFOV=81.2° surface Surface types Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Subject flat Infinity First lens 11a spherical 24.221 0.771 1.729 54.7 -3.09 11b spherical 2.001 3.375 aperture ST flat Infinity -0.109 Second lens 12a aspherical 6.739 1.263 1.810 40.0 4.34 12b aspherical -6.358 0.110 Third lens 13a aspherical 7.293 0.944 1.661 20.4 -7.23 13b aspherical 2.677 0.110 Fourth lens 14a aspherical 2.477 2.084 1.537 56.0 3.21 14b aspherical -3.825 0.110 Fifth lens 15a aspherical -2.069 0.620 1.661 20.4 -5.08 15b aspherical -6.443 0.110 Sixth lens 16a aspherical 3.290 1.156 1.537 56.0 8.51 16b aspherical 10.793 0.273 Filter element 17a flat Infinity 0.300 1.517 64.2 inf 17b flat Infinity 2.200 Imaging surface 101 flat Infinity 0.000 Reference wavelength: 940nm Table 1

[0098] Please refer to Table 2 below, which lists the aspherical coefficients of each lens surface in the first embodiment of the present invention. Here, K is the conical coefficient in the aspherical curve equation, and A4 to A16 represent the 4th to 16th order aspherical coefficients of each surface. For example, the conical coefficient K of the object side 12a of the second lens 12 is 3.49E+00. Other examples can be deduced similarly and will not be repeated below. Furthermore, the tables in the following embodiments correspond to the optical imaging lens groups of each embodiment, and the definitions in each table are the same as in this embodiment; therefore, they will not be repeated in the following embodiments. Aspheric coefficient of the first embodiment 12a 12b 13a 13b 14a 14b 15a 15b 16a 16b K 3.49E+00 -1.28E+01 1.26E+01 -3.47E-01 -5.66E+00 -4.40E-01 -4.40E+00 1.52E+00 -6.70E+00 9.12E+00 A4 -1.29E-03 -9.64E-03 -1.33E-02 -3.92E-02 -6.53E-03 -2.78E-02 2.67E-02 6.48E-02 -6.30E-03 -9.15E-03 A6 1.14E-03 3.21E-03 1.06E-03 1.10E-02 3.45E-03 7.19E-03 -1.03E-02 -1.26E-02 -1.08E-03 -9.88E-04 A8 8.41E-04 6.73E-04 9.22E-06 -1.92E-03 -1.73E-04 -3.19E-03 -6.53E-04 1.30E-03 3.56E-04 1.67E-04 A10 -1.97E-04 -1.56E-04 -2.91E-04 1.80E-05 1.31E-05 5.92E-04 3.13E-04 -4.34E-05 -2.17E-05 -6.89E-06 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A16 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Table 2

[0099] In the first embodiment, the radius of curvature of the image side of the sixth lens is R12, the focal length of the sixth lens is f6, and R12 / f6=1.268.

[0100] In the first embodiment, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, and the effective focal length is EFL, (f5+f6) / EFL=1.324.

[0101] In the first embodiment, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the thickness of the fifth lens on the optical axis is CT5, the thickness of the sixth lens on the optical axis is CT6, and (f5+f6) / (CT5+CT6)=1.931.

[0102] In the first embodiment, the radius of curvature of the side surface of the sixth lens is R11, the focal length of the sixth lens is f6, and R11 / f6 = 0.387.

[0103] In the first embodiment, the radius of curvature of the object surface of the first lens is R1, the focal length of the optical imaging lens group is EFL, and R1 / EFL=9.352.

[0104] For example, in the optical camera lens group of claim 1 or 2, the radius of curvature of the side of the sixth lens is R12, the focal length of the optical camera lens group is EFL, and R12 / EFL = 4.167.

[0105] In the first embodiment, the focal length of the sixth lens is f6, the focal length of the optical imaging lens group is EFL, and f6 / EFL=3.286.

[0106] In the first embodiment, the thickness of the second lens is CT2, the thickness of the third lens is CT3, the air gap between the second and third lenses is AT23, and (CT3-CT2) / AT23 = -2.895.

[0107] In the first embodiment, the thickness of the first lens is CT1, the thickness of the second lens is CT2, and CT1 / CT2 = 0.611.

[0108] In the first embodiment, the air gap between the first and second lenses is AT12, the focal length of the optical imaging lens group is EFL, and AT12 / EFL=1.261.

[0109] In the first embodiment, the focal length of the optical imaging lens group is EFL, the thickness of the second lens is CT2, and EFL / CT2=2.051.

[0110] In the first embodiment, the total length is TTL, the thickness of the second lens is CT2, and TTL / CT2 = 10.539.

[0111] In the first embodiment, half of the maximum field of view of the optical imaging lens group is HFOV, and the half image height of the optical imaging lens group is ImgH, with HFOV / ImgH=23.200.

[0112] In the first embodiment, the radius of curvature of the object plane of the second lens is R3, the radius of curvature of the image plane of the second lens is R4, the focal length of the second lens is f2, and (R3+R4) / f2=0.088.

[0113] In the first embodiment, the radius of curvature of the object surface of the second lens is R3, the radius of curvature of the image surface of the second lens is R4, and (R3+R4) / (R3-R4)=0.029.

[0114] In the first embodiment, the combined focal length of the fourth to sixth lenses is f456, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the thickness of the first lens is CT1, the thickness of the second lens is CT2, and f456 / (f1+f2+f3) = -0.681.

[0115] In the first embodiment, the sum of the lens thicknesses of each lens in the optical imaging lens group along the optical axis is ΣCT, the thickness of the fifth lens is CT5, and ΣCT / CT5 = 11.034.

[0116] In the first embodiment, the thickness of the sixth lens is CT6, the focal length of the sixth lens is f6, and CT6 / f6=0.136.

[0117] In the first embodiment, the combined focal length of the first to third lenses is f123, and the focal length of the optical imaging lens group is EFL, f123 / EFL = -4.335.

[0118] In the first embodiment, the radius of curvature of the object side of the sixth lens is R11, the radius of curvature of the image side of the sixth lens is R12, the focal length of the sixth lens is f6, and (R11*R12) / f6 = 4.173.

[0119] In the first embodiment, the focal length of the first lens is f1, the focal length of the second lens is f2, the combined focal length of the first lens and the second lens is f12, and (f1+f2) / f12=0.219.

[0120] In the first embodiment, the focal length of the third lens is f3, the focal length of the fourth lens is f4, and the combined focal length of the third and fourth lenses is f34, (f3+f4) / f34= -0.756.

[0121] In the first embodiment, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the combined focal length of the fifth to sixth lenses is f56, and (f5+f6) / f56 = -0.242.

[0122] As can be seen from the numerical values ​​of the above relations, the optical imaging lens group 10 of the first embodiment satisfies the requirements of relations (1) to (23).

[0123] Referring to Figure 1B, from left to right, the figure shows the astigmatism field curvature aberration diagram, f-tanθ distortion diagram, and longitudinal spherical aberration diagram of the optical imaging lens group 10. The astigmatism field curvature aberration diagram (wavelength 940 nm) shows that the variation of aberration in the sagittal direction across the entire field of view is between -0.04 mm and 0.03 mm; the variation of aberration in the meridional direction across the entire field of view is between -0.03 mm and 0.08 mm. The f-tanθ distortion aberration diagram (wavelength 940 nm) shows that the absolute value of the f-tanθ distortion rate of the optical imaging lens group 10 is less than 79%. As can be seen from the longitudinal spherical aberration diagram, off-axis rays of the three visible light wavelengths (470 nm, 555 nm, and 650 nm) at different heights can all be concentrated near the imaging point, with the imaging point deviation controllable between -0.04 mm and 0.02 mm. Meanwhile, the aberration of the infrared light wavelength of 940 nm varies between -0.03 mm and 0.02 mm across the entire field of view. As shown in Figure 1B, the optical imaging lens group 10 of this embodiment has effectively corrected various aberrations, meeting the imaging quality requirements of the optical system. Second Embodiment

[0124] Referring to Figures 2A and 2B, Figure 2A is a schematic diagram of the optical imaging lens group of the second embodiment of the present invention. Figure 2B shows, from left to right, the astigmatism / field curvature, f-tanθ distortion, and longitudinal spherical aberration diagrams of the second embodiment of the present invention.

[0125] As shown in Figure 2A, the optical imaging lens group 20 of the second embodiment includes, from the object side to the image side, a first lens 21, an aperture ST, a second lens 22, a third lens 23, a fourth lens 24, a fifth lens 25, and a sixth lens 26. This optical imaging lens group 20 may further include a filter element 27 and an imaging surface 201. An image sensing element 202 may be disposed on the imaging surface 201 to form an imaging device (not otherwise labeled).

[0126] The first lens 21 has negative refractive power, its object-side surface 21a is convex and its image-side surface 21b is concave, and both the object-side surface 21a and the image-side surface 21b are spherical. The material of the first lens 21 includes glass, but is not limited thereto.

[0127] The second lens 22 has positive refractive power, its object-side surface 22a is convex, its image-side surface 22b is convex, and both the object-side surface 22a and the image-side surface 22b are aspherical. The material of the second lens 22 includes glass, but is not limited thereto.

[0128] The third lens 23 has negative refractive power, its object-side surface 23a is convex and its image-side surface 23b is concave, and both the object-side surface 23a and the image-side surface 23b are aspherical. The material of the third lens 23 includes plastic, but is not limited thereto.

[0129] The fourth lens 24 has positive refractive power. Its object-side surface 24a is convex, and its image-side surface 24b is convex. Both the object-side surface 24a and the image-side surface 24b are aspherical. The material of the fourth lens 24 includes plastic, but is not limited to this.

[0130] The fifth lens 25 has negative refractive power. Its object-side surface 25a is concave, and its image-side surface 25b is convex. Both the object-side surface 25a and the image-side surface 25b are aspherical. The material of the fifth lens 25 includes plastic, but is not limited to this.

[0131] The sixth lens 26 has positive refractive power, with its object-side surface 26a being convex and its image-side surface 26b being concave, and both the object-side surface 26a and the image-side surface 26b being aspherical. The material of the sixth lens 26 includes plastic, but is not limited thereto.

[0132] The filter element 27 is disposed between the sixth lens 26 and the imaging surface 201 to filter out light in a specific wavelength range and allow the desired wavelength to pass through, such as an ultraviolet or infrared light filtering element. The second surfaces 27a and 27b of the filter element 27 are both planar and made of glass.

[0133] Image sensing element 202 is, for example, a charge-coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor.

[0134] Detailed optical data and aspherical coefficients of the lens surface of the optical imaging lens group 20 in the second embodiment are listed in Tables 3 and 4, respectively. In the second embodiment, the aspherical curve equation is expressed in the same form as in the first embodiment. Second Embodiment TTL=13.31mm,EFL=2.59mm,FNO=2.2,HFOV=81.5° surface Surface types Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Subject flat Infinity First lens 21a spherical 24.221 0.771 1.792 54.9 -3.09 21b spherical 2.001 3.375 aperture ST flat Infinity -0.109 Second lens 22a aspherical 6.879 1.263 1.810 41.0 4.47 22b aspherical -6.595 0.110 Third lens 23a aspherical 7.518 0.944 1.661 20.4 -6.99 23b aspherical 2.656 0.110 Fourth lens 24a aspherical 2.299 2.084 1.537 56.0 2.99 24b aspherical -3.476 0.110 Fifth lens 25a aspherical -1.986 0.620 1.661 20.4 -4.85 25b aspherical -6.256 0.110 Sixth lens 26a aspherical 3.671 1.156 1.537 56.0 9.35 26b aspherical 12.747 0.273 Filter element 27a flat Infinity 0.300 1.517 64.2 27b flat Infinity 2.200 Imaging surface 201 flat Infinity 0.000 Reference wavelength: 940nm Table 3 The aspheric coefficient in the second embodiment 22a 22b 23a 23b 24a 24b 25a 25b 26a 26b K 4.39E+00 -1.26E+01 1.26E+01 -3.40E-01 -4.95E+00 -1.56E+00 -4.13E+00 -3.09E+00 -6.51E+00 -2.87E+00 A4 -7.08E-04 -9.01E-03 -1.22E-02 -3.94E-02 -3.84E-03 -2.46E-02 2.79E-02 6.89E-02 -6.01E-03 -8.62E-03 A6 1.01E-03 3.48E-03 5.02E-04 1.15E-02 3.82E-03 7.54E-03 -7.19E-03 -1.17E-02 2.02E-04 -2.67E-04 A8 4.37E-04 1.91E-04 4.01E-04 -1.81E-03 -1.68E-04 -3.16E-03 -1.48E-03 9.79E-04 1.44E-04 4.66E-05 A10 8.93E-05 2.45E-04 -1.27E-04 -4.23E-05 -1.64E-05 6.26E-04 4.21E-04 -2.22E-05 -1.08E-05 -6.73E-07 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A16 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Table 4

[0135] In the second embodiment, the values ​​of each relation of the optical imaging lens group 20 are listed in Table 5. As can be seen from Table 5, the optical imaging lens group 20 of the second embodiment satisfies the requirements of relations (1) to (23). Second Embodiment No. relational expression numerical values 1 R12 / f6 1.363 2 (f5+f6) / EFL 1.737 3 (f5+f6) / (CT5+CT6) 2.534 4 R11 / f6 0.393 5 R1 / EFL 9.352 6 R12 / EFL 4.922 7 f6 / EFL 3.610 8 (CT3-CT2) / AT23 -2.895 9 CT1 / CT2 0.611 10 AT12 / EFL 1.261 11 EFL / CT2 2.051 12 TTL / CT2 10.539 13 HFOV / ImgH 23.286 14 (R3+R4) / f2 0.064 15 (R3+R4) / (R3-R4) 0.021 16 f456 / (f1+f2+f3) -0.695 17 ΣCT / CT5 11.034 18 CT6 / f6 0.124 19 f123 / EFL -3.270 20 (R11*R12) / f6 5.005 21 (f1+f2) / f12 0.223 22 (f3+f4) / f34 -0.839 23 (f5+f6) / f56 -0.406 Table 5

[0136] Referring to Figure 2B, from left to right, the figure shows the astigmatism field curvature aberration diagram, f-tanθ distortion diagram, and longitudinal spherical aberration diagram of the optical imaging lens group 20. The astigmatism field curvature aberration diagram (wavelength 940 nm) shows that the variation of aberration in the sagittal direction across the entire field of view is between -0.04 mm and -0.02 mm; the variation of aberration in the meridional direction across the entire field of view is between -0.03 mm and 0.11 mm. The f-tanθ distortion aberration diagram (wavelength 940 nm) shows that the absolute value of the f-tanθ distortion rate of the optical imaging lens group 20 is less than 80%. As can be seen from the longitudinal spherical aberration diagram, off-axis rays of the three visible light wavelengths (470 nm, 555 nm, and 650 nm) at different heights can all be concentrated near the imaging point, with the imaging point deviation controllable between -0.04 mm and 0.02 mm. Meanwhile, the aberration of the infrared light wavelength of 940 nm varies between -0.03 mm and 0.00 mm across the entire field of view. As shown in Figure 2B, the optical imaging lens group 20 of this embodiment has effectively corrected various aberrations, meeting the imaging quality requirements of the optical system. Third Embodiment

[0137] Referring to Figures 3A and 3B, Figure 3A is a schematic diagram of the optical imaging lens group of the third embodiment of the present invention. Figure 3B shows, from left to right, the astigmatism / field curvature, f-tanθ distortion, and longitudinal spherical aberration diagrams of the third embodiment of the present invention.

[0138] As shown in Figure 3A, the optical imaging lens group 30 of the third embodiment includes, from the object side to the image side, a first lens 31, an aperture ST, a second lens 32, a third lens 33, a fourth lens 34, a fifth lens 35, and a sixth lens 36. This optical imaging lens group 30 may further include a filter element 37 and an imaging surface 301. An image sensing element 302 may be disposed on the imaging surface 301 to form an imaging device (not otherwise labeled).

[0139] The first lens 31 has negative refractive power, its object-side surface 31a is convex and its image-side surface 31b is concave, and both the object-side surface 31a and the image-side surface 31b are spherical. The material of the first lens 31 includes glass, but is not limited thereto.

[0140] The second lens 32 has positive refractive power, its object-side surface 32a is convex, its image-side surface 32b is convex, and both the object-side surface 32a and the image-side surface 32b are aspherical. The material of the second lens 32 includes glass, but is not limited thereto.

[0141] The third lens 33 has negative refractive power, its object-side surface 33a is convex and its image-side surface 33b is concave, and both the object-side surface 33a and the image-side surface 33b are aspherical. The material of the third lens 33 includes plastic, but is not limited thereto.

[0142] The fourth lens 34 has positive refractive power. Its object-side surface 34a is convex, and its image-side surface 34b is convex. Both the object-side surface 34a and the image-side surface 34b are aspherical. The material of the fourth lens 34 includes plastic, but is not limited to this.

[0143] The fifth lens 35 has negative refractive power. Its object-side surface 35a is concave, and its image-side surface 35b is convex. Both the object-side surface 35a and the image-side surface 35b are aspherical. The material of the fifth lens 35 includes plastic, but is not limited to this.

[0144] The sixth lens 36 has positive refractive power, with its object-side surface 36a being convex and its image-side surface 36b being concave, and both the object-side surface 36a and the image-side surface 36b being aspherical. The material of the sixth lens 36 includes plastic, but is not limited to this.

[0145] A filter element 37 is disposed between the sixth lens 36 and the imaging surface 301 to filter out light in a specific wavelength range and allow the desired wavelength to pass through, such as an ultraviolet or infrared light filter element. The second surfaces 37a and 37b of the filter element 37 are both planar and made of glass.

[0146] Image sensing element 302 is, for example, a charge-coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor.

[0147] Detailed optical data of the optical imaging lens group 30 of the third embodiment and the aspherical coefficients of the lens surface are listed in Tables 6 and 7, respectively. In the third embodiment, the curve equation of the aspherical surface is expressed in the form of the first embodiment. Third Embodiment TTL=13.31mm,EFL=2.58mm,FNO=2.2,HFOV=82.7° surface Surface types Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Subject flat Infinity First lens 31a spherical 24.221 0.771 1.792 54.9 -3.03 31b spherical 2.001 3.375 aperture ST flat Infinity -0.109 Second lens 32a aspherical 6.739 1.263 1.810 41.0 4.23 32b aspherical -6.358 0.110 Third lens 33a aspherical 7.723 0.944 1.661 20.4 -6.50 33b aspherical 2.640 0.110 Fourth lens 34a aspherical 2.367 2.084 1.537 56.0 3.03 34b aspherical -3.621 0.110 Fifth lens 35a aspherical -2.027 0.620 1.661 20.4 -4.99 35b aspherical -5.814 0.110 Sixth lens 36a aspherical 3.621 1.156 1.537 56.0 9.44 36b aspherical 11.162 0.273 Filter element 37a flat Infinity 0.300 1.517 64.2 37b flat Infinity 2.200 Imaging surface 301 flat Infinity 0.000 Reference wavelength: 940nm Table 6 The aspheric coefficient in the third embodiment 32a 32b 33a 33b 34a 34b 35a 35b 36a 36b K 3.49E+00 -1.28E+01 1.30E+01 -3.74E-01 -5.15E+00 -9.64E-01 -3.81E+00 -7.93E-01 -4.78E+00 4.31E+00 A4 -1.29E-03 -9.64E-03 -1.31E-02 -3.97E-02 -4.72E-03 -2.64E-02 2.70E-02 6.75E-02 -7.44E-03 -8.18E-03 A6 1.14E-03 3.21E-03 1.14E-03 1.11E-02 3.65E-03 7.40E-03 -7.62E-03 -1.19E-02 -1.84E-05 -4.72E-04 A8 8.41E-04 6.73E-04 3.80E-05 -1.87E-03 -2.01E-04 -3.16E-03 -1.57E-03 1.00E-03 1.41E-04 4.66E-05 A10 -1.97E-04 -1.56E-04 -2.74E-04 -3.07E-05 -2.16E-06 6.17E-04 4.55E-04 -7.43E-06 -5.31E-06 1.28E-06 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A16 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Table 7

[0148] In the third embodiment, the values ​​of each relation of the optical camera lens group 30 are listed in Table 8. As can be seen from Table 8, the optical camera lens group 30 of the third embodiment satisfies the requirements of relations (1) to (23). Third Embodiment No. relational expression numerical values 1 R12 / f6 1.182 2 (f5+f6) / EFL 1.725 3 (f5+f6) / (CT5+CT6) 2.507 4 R11 / f6 0.383 5 R1 / EFL 9.388 6 R12 / EFL 4.326 7 f6 / EFL 3.660 8 (CT3-CT2) / AT23 -2.895 9 CT1 / CT2 0.611 10 AT12 / EFL 1.266 11 EFL / CT2 2.043 12 TTL / CT2 10.539 13 HFOV / ImgH 24.324 14 (R3+R4) / f2 0.090 15 (R3+R4) / (R3-R4) 0.029 16 f456 / (f1+f2+f3) -0.741 17 ΣCT / CT5 11.034 18 CT6 / f6 0.122 19 f123 / EFL -3.538 20 (R11*R12) / f6 4.280 21 (f1+f2) / f12 0.210 22 (f3+f4) / f34 -0.683 23 (f5+f6) / f56 -0.355 Table 8

[0149] Referring to Figure 3B, from left to right, the figure shows the astigmatism field curvature aberration diagram, f-tanθ distortion diagram, and longitudinal spherical aberration diagram of the optical imaging lens group 30. The astigmatism field curvature aberration diagram (wavelength 940 nm) shows that the variation of aberration in the sagittal direction across the entire field of view is between -0.04 mm and -0.03 mm; the variation of aberration in the meridional direction across the entire field of view is between -0.04 mm and 0.13 mm. The f-tanθ distortion aberration diagram (wavelength 940 nm) shows that the absolute value of the f-tanθ distortion rate of the optical imaging lens group 30 is less than 83%. As can be seen from the longitudinal spherical aberration diagram, off-axis rays of the three visible light wavelengths (470 nm, 555 nm, and 650 nm) at different heights can all be concentrated near the imaging point, with the imaging point deviation controllable between -0.05 mm and 0.03 mm. Meanwhile, the aberration of the infrared light wavelength of 940 nm varies between -0.04 mm and 0.03 mm across the entire field of view. As shown in Figure 3B, the optical imaging lens group 30 of this embodiment has effectively corrected various aberrations, meeting the imaging quality requirements of the optical system. Fourth embodiment

[0150] Referring to Figures 4A and 4B, Figure 4A is a schematic diagram of the optical imaging lens group of the fourth embodiment of the present invention. Figure 4B shows, from left to right, the astigmatism / field curvature, f-tanθ distortion, and longitudinal spherical aberration diagrams of the fourth embodiment of the present invention.

[0151] As shown in Figure 4A, the optical imaging lens group 40 of the fourth embodiment includes, from the object side to the image side, a first lens 41, an aperture ST, a second lens 42, a third lens 43, a fourth lens 44, a fifth lens 45, and a sixth lens 46. This optical imaging lens group 40 may further include a filter element 47 and an imaging surface 401. An image sensing element 402 may be disposed on the imaging surface 401 to form an imaging device (not otherwise labeled).

[0152] The first lens 41 has negative refractive power, its object-side surface 41a is convex and its image-side surface 41b is concave, and both the object-side surface 41a and the image-side surface 41b are spherical. The material of the first lens 41 includes glass, but is not limited thereto.

[0153] The second lens 42 has positive refractive power, its object-side surface 42a is convex, its image-side surface 42b is convex, and both the object-side surface 42a and the image-side surface 42b are aspherical. The material of the second lens 42 includes glass, but is not limited thereto.

[0154] The third lens 43 has negative refractive power, its object-side surface 43a is convex and its image-side surface 43b is concave, and both the object-side surface 43a and the image-side surface 43b are aspherical. The material of the third lens 43 includes plastic, but is not limited to this.

[0155] The fourth lens 44 has positive refractive power. Its object-side surface 44a is convex, and its image-side surface 44b is convex. Both the object-side surface 44a and the image-side surface 44b are aspherical. The material of the fourth lens 44 includes plastic, but is not limited to this.

[0156] The fifth lens 45 has negative refractive power. Its object-side surface 45a is concave, and its image-side surface 45b is convex. Both the object-side surface 45a and the image-side surface 45b are aspherical. The material of the fifth lens 45 includes plastic, but is not limited to this.

[0157] The sixth lens 46 has positive refractive power, with its object-side surface 46a being convex and its image-side surface 46b being concave, and both the object-side surface 46a and the image-side surface 46b being aspherical. The material of the sixth lens 46 includes plastic, but is not limited to this.

[0158] A filter element 47 is disposed between the sixth lens 46 and the imaging surface 401 to filter out light in a specific wavelength range and allow the desired wavelength to pass through, such as an ultraviolet or infrared light filter element. The second surfaces 47a and 47b of the filter element 47 are both planar and made of glass.

[0159] Image sensing element 402 is, for example, a charge-coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor.

[0160] Detailed optical data and aspherical coefficients of the lens surface of the optical imaging lens group 40 in the fourth embodiment are listed in Tables 9 and 10, respectively. In the fourth embodiment, the aspherical curve equation is expressed in the form of the first embodiment. Fourth embodiment TTL=14.81mm,EFL=2.65mm,FNO=2.4,HFOV=85° surface Surface types Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Subject flat Infinity First lens 41a spherical 17.855 0.700 1.792 54.7 -3.75 41b spherical 2.297 3.901 aperture ST flat Infinity 0.039 Second lens 42a spherical 7.874 2.113 1.804 46.6 4.99 42b spherical -6.915 0.114 Third lens 43a aspherical 6.996 1.047 1.661 20.4 -7.69 43b aspherical 2.709 0.114 Fourth lens 44a aspherical 2.508 1.985 1.537 56.0 3.19 44b aspherical -3.717 0.114 Fifth lens 45a aspherical -2.351 0.514 1.661 20.4 -6.45 45b aspherical -5.983 0.114 Sixth lens 46a aspherical 4.695 1.907 1.537 56.0 27.20 46b aspherical 5.995 0.282 Filter element 47a flat Infinity 0.500 1.517 64.2 47b flat Infinity 1.369 Imaging surface 401 flat Infinity 0.000 Reference wavelength: 940nm Table 9 Aspheric coefficient of the fourth embodiment 43a 43b 44a 44b 45a 45b 46a 46b K 9.31E+00 -2.53E-01 -5.04E+00 -1.64E+00 -4.28E+00 8.18E-02 -1.93E+00 3.78E-01 A4 -6.31E-03 -3.59E-02 -5.18E-03 -2.03E-02 2.57E-02 6.34E-02 -6.80E-03 -8.60E-03 A6 -8.27E-04 9.76E-03 3.02E-03 6.66E-03 -6.00E-03 -1.05E-02 1.09E-03 -1.04E-04 A8 -1.02E-04 -1.66E-03 -1.08E-04 -2.70E-03 -1.10E-03 7.10E-04 -4.96E-05 1.72E-05 A10 -7.02E-05 1.29E-05 -5.21E-06 4.65E-04 2.67E-04 7.14E-07 -1.42E-06 -1.57E-06 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A16 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Table 10

[0161] In the fourth embodiment, the numerical values ​​of each relation of the optical imaging lens group 40 are listed in Table 11. As can be seen from Table 11, the optical imaging lens group 40 of the fourth embodiment satisfies the requirements of relations (1) to (23). Fourth Implementation No. Relationship Value 1 R12 / f6 0.220 2 (f5+f6) / EFL 7.830 3 (f5+f6) / (CT5+CT6) 8.571 4 R11 / f6 0.173 5 R1 / EFL 6.738 6 R12 / EFL 2.262 7 f6 / EFL 10.264 8 (CT3-CT2) / AT23 -9.394 9 CT1 / CT2 0.331 10 AT12 / EFL 1.487 11 EFL / CT2 1.254 12 TTL / CT2 7.008 13 HFOV / ImgH 25.758 14 (R3+R4) / f2 0.192 15 (R3+R4) / (R3-R4) 0.065 16 f456 / (f1+f2+f3) -0.643 17 ΣCT / CT5 16.086 18 CT6 / f6 0.070 19 f123 / EFL -5.539 20 (R11*R12) / f6 1.035 twenty one (f1+f2) / f12 0.219 twenty two (f3+f4) / f34 -0.874 twenty three (f5+f6) / f56 -2.729 Table 11

[0162] Referring to Figure 4B, from left to right, the figure shows the astigmatism field curvature aberration diagram, f-tanθ distortion diagram, and longitudinal spherical aberration diagram of the optical imaging lens group 40. The astigmatism field curvature aberration diagram (wavelength 940 nm) shows that the variation of aberration in the sagittal direction across the entire field of view is between -0.02 mm and 0.00 mm; the variation of aberration in the meridional direction across the entire field of view is between 0.00 mm and 0.3 mm. The f-tanθ distortion aberration diagram (wavelength 940 nm) shows that the absolute value of the f-tanθ distortion rate of the optical imaging lens group 40 is less than 89%. The longitudinal spherical aberration diagram shows that off-axis rays of the three visible light wavelengths (470 nm, 555 nm, and 650 nm) at different heights can all be concentrated near the imaging point, with the imaging point deviation controllable between -0.02 mm and 0.05 mm. The variation of aberration in the infrared light wavelength of 940 nm across the entire field of view is between 0.00 mm and 0.02 mm. As shown in Figure 4B, the optical imaging lens group 40 of this embodiment has effectively corrected various aberrations, meeting the imaging quality requirements of the optical system. Fifth Embodiment

[0163] Referring to Figures 5A and 5B, Figure 5A is a schematic diagram of the optical imaging lens group of the fifth embodiment of the present invention. Figure 5B is a diagram of astigmatism / field curvature, f-tanθ distortion, and longitudinal spherical aberration of the fifth embodiment of the present invention.

[0164] As shown in Figure 5A, the optical imaging lens group 50 of the fifth embodiment includes, from the object side to the image side, a first lens 51, an aperture ST, a second lens 52, a third lens 53, a fourth lens 54, a fifth lens 55, and a sixth lens 56. This optical imaging lens group 50 may further include a filter element 57 and an imaging surface 501. An image sensing element 502 may be disposed on the imaging surface 501 to form an imaging device (not otherwise labeled).

[0165] The first lens 51 has negative refractive power, its object-side surface 51a is convex and its image-side surface 51b is concave, and both the object-side surface 51a and the image-side surface 51b are spherical. The material of the first lens 51 includes glass, but is not limited thereto.

[0166] The second lens 52 has positive refractive power, its object-side surface 52a is convex, its image-side surface 52b is convex, and both the object-side surface 52a and the image-side surface 52b are aspherical. The material of the second lens 52 includes glass, but is not limited thereto.

[0167] The third lens 53 has negative refractive power. Its object-side surface 53a is convex, and its image-side surface 53b is concave. Both the object-side surface 53a and the image-side surface 53b are aspherical. The material of the third lens 53 includes plastic, but is not limited to this.

[0168] The fourth lens 54 has positive refractive power. Its object-side surface 54a is convex, and its image-side surface 54b is convex. Both the object-side surface 54a and the image-side surface 54b are aspherical. The material of the fourth lens 54 includes plastic, but is not limited to this.

[0169] The fifth lens 55 has negative refractive power. Its object-side surface 55a is concave, and its image-side surface 55b is convex. Both the object-side surface 55a and the image-side surface 55b are aspherical. The material of the fifth lens 55 includes plastic, but is not limited to this.

[0170] The sixth lens 56 has positive refractive power. Its object-side surface 56a is convex, and its image-side surface 56b is concave. Both the object-side surface 56a and the image-side surface 56b are aspherical. The material of the sixth lens 56 includes plastic, but is not limited to this.

[0171] A filter element 57 is disposed between the sixth lens 56 and the imaging surface 501 to filter out light in a specific wavelength range and allow the desired wavelength to pass through, such as an ultraviolet or infrared light filter element. The second surfaces 57a and 57b of the filter element 57 are both planar and made of glass.

[0172] Image sensing element 502 is, for example, a charge-coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor.

[0173] Detailed optical data and aspherical coefficients of the lens surface of the optical imaging lens group 50 in the fifth embodiment are listed in Tables 12 and 13, respectively. In the fifth embodiment, the aspherical curve equation is expressed in the form of the first embodiment. Fifth Embodiment TTL=14.7mm,EFL=2.64mm,FNO=2.4,HFOV=82.8° surface Surface types Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Subject flat Infinity First lens 51a spherical 20.567 0.700 1.792 54.7 -3.73 51b spherical 2.331 3.850 aperture ST flat Infinity 0.039 Second lens 52a spherical 7.896 2.083 1.804 46.6 4.98 52b spherical -6.888 0.114 Third lens 53a aspherical 6.984 1.033 1.661 20.4 -7.70 53b aspherical 2.712 0.114 Fourth lens 54a aspherical 2.489 1.931 1.537 56.0 3.16 54b aspherical -3.710 0.114 Fifth lens 55a aspherical -2.334 0.600 1.661 20.4 -6.40 55b aspherical -6.033 0.114 Sixth lens 56a aspherical 4.605 1.911 1.537 56.0 24.47 56b aspherical 6.126 0.282 Filter element 57a flat Infinity 0.500 1.517 64.2 57b flat Infinity 1.360 Imaging surface 501 flat Infinity 0.000 Reference wavelength: 940nm Table 12 The aspheric coefficient of the fifth embodiment 53a 53b 54a 54b 55a 55b 56a 56b K 4.64E+00 -4.05E-01 -5.49E+00 -7.17E+00 -5.19E+00 2.16E+00 4.53E-01 -3.30E+00 A4 -2.71E-03 -3.64E-02 -5.93E-03 -2.85E-02 2.50E-02 6.63E-02 -8.79E-03 -7.07E-03 A6 -2.50E-03 1.16E-02 3.01E-03 1.50E-03 -8.75E-03 -1.14E-02 -1.60E-03 -7.08E-04 A8 1.01E-03 -2.46E-03 -2.97E-04 -7.84E-05 2.84E-04 9.86E-04 6.49E-04 1.42E-04 A10 -2.89E-04 9.50E-05 -8.00E-05 1.06E-05 3.96E-05 -4.07E-05 -7.32E-05 -1.05E-05 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 A16 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Table Thirteen

[0174] In the fifth embodiment, the values ​​of each relation of the optical camera lens group 50 are listed in Table 14. As can be seen from Table 14, the optical camera lens group 50 of the fifth embodiment satisfies the requirements of relations (1) to (23). Fifth Embodiment No. relational expression numerical values 1 R12 / f6 0.250 2 (f5+f6) / EFL 6.845 3 (f5+f6) / (CT5+CT6) 7.196 4 R11 / f6 0.188 5 R1 / EFL 7.791 6 R12 / EFL 2.320 7 f6 / EFL 9.269 8 (CT3-CT2) / AT23 -9.250 9 CT1 / CT2 0.336 10 AT12 / EFL 1.473 11 EFL / CT2 1.268 12 TTL / CT2 7.058 13 HFOV / ImgH 25.091 14 (R3+R4) / f2 0.202 15 (R3+R4) / (R3-R4) 0.068 16 f456 / (f1+f2+f3) -0.640 17 ΣCT / CT5 13.763 18 CT6 / f6 0.078 19 f123 / EFL -5.417 20 (R11*R12) / f6 1.153 21 (f1+f2) / f12 0.218 22 (f3+f4) / f34 -0.892 23 (f5+f6) / f56 -2.305 Table 14

[0175] Referring to Figure 5B, from left to right, the figure shows the astigmatism field curvature aberration diagram, f-tanθ distortion diagram, and longitudinal spherical aberration diagram of the optical imaging lens group 50. The astigmatism field curvature aberration diagram (wavelength 940 nm) shows that the variation of aberration in the sagittal direction is within 0.00 mm to 0.01 mm across the entire field of view; the variation of aberration in the meridional direction is between -0.01 mm and 0.05 mm across the entire field of view. The f-tanθ distortion aberration diagram (wavelength 940 nm) shows that the absolute value of the f-tanθ distortion rate of the optical imaging lens group 50 is less than 84%. As can be seen from the longitudinal spherical aberration diagram, off-axis rays of the three visible light wavelengths (470 nm, 555 nm, and 650 nm) at different heights can all be concentrated near the imaging point, with the imaging point deviation controllable between -0.01 mm and 0.06 mm. Meanwhile, the aberration of the infrared light wavelength of 940 nm varies between 0.00 mm and 0.02 mm across the entire field of view. As shown in Figure 5B, the optical imaging lens group 50 of this embodiment has effectively corrected various aberrations, meeting the imaging quality requirements of the optical system. Sixth Embodiment

[0176] Referring to Figure 6, an imaging device 1010 includes optical imaging lens groups 10, 20, 30, 40, and 50 as described in the first to fifth embodiments above, and an image sensing element 102, 202, 302, 402, and 502; wherein the image sensing elements 102, 202, 302, 402, and 502 are disposed on the imaging surfaces 101, 201, 301, 401, and 501 of the optical imaging lens groups 10, 20, 30, 40, and 50. The image sensing elements 102, 202, 302, 402, 502, and 602 are, for example, charge-coupled devices (CCDs) or complementary metal-oxide-semiconductor (CMOS) image sensing elements.

[0177] In Figure 6, the vehicle electronic device 1000 of the sixth embodiment of the present invention includes an imaging device 1010, wherein the general electronic device 1000 is used to observe, monitor, sense and / or record the environment and status inside or outside the vehicle. [ ] Seventh Embodiment

[0178] In Figure 7, the general electronic device 2000 of the seventh embodiment of the present invention includes an imaging device 2010, wherein the general electronic device 2000 can be applied to general 3C products and other electronic products with camera functions.

[0179] Although the present invention has been described using the foregoing embodiments, these embodiments are not intended to limit the scope of the invention. For anyone skilled in the art, various changes in form and detail can be made with reference to the embodiments disclosed herein without departing from the spirit and scope of the invention. Therefore, it should be understood here that the present invention is defined by the following claims, and any changes made within the scope of the claims or their equivalents should still fall within the scope of the present invention.

[0180] 10, 20, 30, 40, 50: Optical camera lens group 11, 21, 31, 41, 51: First lens 12, 22, 32, 42, 52: Second lens 13, 23, 33, 43, 53: Third lens 14, 24, 34, 44, 54: Fourth lens 15, 25, 35, 45, 55: Fifth lens 16, 26, 36, 46, 56: Sixth lens 17, 27, 37, 47, 57: Filter elements 101, 201, 301, 401, 501: Imaging planes 11a, 21a, 31a, 41a, 51a: Object side of the first lens 11b, 21b, 31b, 41b, 51b: Image side view of the first lens 12a, 22a, 32a, 42a, 52a: Object-side view of the second lens 12b, 22b, 32b, 42b, 52b: Image side view of the second lens 13a, 23a, 33a, 43a, 53a: Object side of the third lens 13b, 23b, 33b, 43b, 53b: Image side view of the third lens 14a, 24a, 34a, 44a, 54a: Object side of the fourth lens 14b, 24b, 34b, 44b, 54b: Image side view of the fourth lens 15a, 25a, 35a, 45a, 55a: Object side of the fifth lens 15b, 25b, 35b, 45b, 55b: Image side view of the fifth lens 16a, 26a, 36a, 46a, 56a: Object side of the sixth lens 16b, 26b, 36b, 46b, 56b: Image side view of the sixth lens 17a, 17b, 27a, 27b, 37a, 37b, 47a, 47b, 57a, 57b: Surface of filter element two 102, 202, 302, 402, 502: Image sensing elements 1000: Automotive electronic devices 2000: General Electronic Devices 1010, 2010: Imaging device I: optical axis ST: Aperture

Claims

1. An optical imaging lens assembly, comprising, from the object side to the image side, the following in sequence: a first lens having negative refractive power, its object side being convex and its image side being concave; an aperture; a second lens having positive refractive power, its object side being convex and its image side being convex; a third lens having negative refractive power, its object side being concave and its image side being convex; a fourth lens having positive refractive power, its object side being convex and its image side being convex; a fifth lens having negative refractive power, its object side being concave and its image side being convex; and a sixth lens having positive refractive power, its object side being convex and its image side being concave; wherein... The radius of curvature of the image side of the sixth lens is R12, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, and the focal length of the optical imaging lens group is EFL, which satisfy the following relationship: 0.22 < R12 / f6 < 1.4; and 1.3 < (f5 + f6) / EFL < 7.

9.

2. An optical imaging lens assembly, comprising, from the object side to the image side, the following in sequence: a first lens having negative refractive power, its object side being convex and its image side being concave; an aperture; a second lens having positive refractive power, its object side being convex and its image side being convex; a third lens having negative refractive power, its object side being concave and its image side being convex; a fourth lens having positive refractive power, its object side being convex and its image side being convex; a fifth lens having negative refractive power, its object side being concave and its image side being convex; and a sixth lens having positive refractive power, its object side being convex and its image side being concave; wherein... The radius of curvature of the image side of the sixth lens is R12, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the thickness of the fifth lens on the optical axis is CT5, and the thickness of the sixth lens on the optical axis is CT6, which satisfy the following relationship: 0.22 < R12 / f6 < 1.4; and 1.9 < (f5 + f6) / (CT5 + CT6) < 8.

6.

3. The optical imaging lens assembly as described in claim 1 or 2, wherein, The radius of curvature of the side surface of the sixth lens is R11, and the focal length of the sixth lens is f6, which satisfies the following relationship: 0.17 < R11 / f6 < 0.

4.

4. The optical imaging lens assembly as described in claim 1 or 2, wherein, The radius of curvature of the object surface of the first lens is R1, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: 6.7 < R1 / EFL < 9.

4.

5. In the optical imaging lens group of claim 1 or 2, the radius of curvature of the image side of the sixth lens is R12 and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: -2.2 < R12 / EFL < 5.

6. The optical imaging lens assembly as described in claim 1 or 2, wherein, The sixth lens has a focal length of f6, and the optical imaging lens group has a focal length of EFL, which satisfies the following relationship: 3.2 < f6 / EFL < 10.

3.

7. The optical imaging lens assembly as described in claim 1 or 2, wherein, The thickness of the second lens is CT2, the thickness of the third lens is CT3, and the air gap between the second and third lenses is AT23, which satisfies the following relationship: -10 < (CT3 - CT2) / AT23 < -2.

8.

8. The optical imaging lens assembly as described in claim 1 or 2, wherein, The thickness of the first lens is CT1, and the thickness of the second lens is CT2, which satisfy the following relationship: 0.3 < CT1 / CT2 < 0.

62.

9. The optical imaging lens assembly as described in claim 1 or 2, wherein, The air gap between the first and second lenses is AT12, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: 1.2 < AT12 / EFL < 1.

5.

10. The optical imaging lens assembly as described in claim 1 or 2, wherein, The focal length of the optical imaging lens group is EFL, and the thickness of the second lens is CT2, which satisfies the following relationship: 1.2 < EFL / CT2 < 2.

1.

11. The optical imaging lens assembly as described in claim 1 or 2, wherein, The total length of the optical imaging lens group is TTL, and the thickness of the second lens is CT2, which satisfies the following relationship: 6.9 < TTL / CT2 < 10.

6.

12. The optical imaging lens assembly as described in claim 1 or 2, wherein, The maximum field of view of the optical imaging lens group is half of HFOV, and the half image height of the optical imaging lens group is ImgH, which satisfies the following relationship: 23 < HFOV / ImgH < 26.

13. The optical imaging lens assembly as described in claim 1 or 2, wherein, The second lens has an object plane radius of curvature of R3, an image plane radius of curvature of R4, and a focal length of f2, which satisfy the following relationship: 0.06 < (R3 + R4) / f2 < 0.

21.

14. The optical imaging lens assembly as described in claim 1 or 2, wherein, The radius of curvature of the object plane of the second lens is R3, and the radius of curvature of the image plane of the second lens is R4, which satisfy the following relationship: 0.02 < (R3 + R4) / (R3 - R4) < 0.

07.

15. The optical imaging lens assembly as described in claim 1 or 2, wherein, The combined focal length of the fourth to sixth lenses is f456, the focal length of the first lens is f1, the focal length of the second lens is f2, and the focal length of the third lens is f3, which satisfies the following relationship: -0.8 < f456 / (f1+f2+f3) < -0.

6.

16. The optical imaging lens assembly as described in claim 1 or 2, wherein, The sum of the lens thicknesses of all lenses in the optical imaging lens group along the optical axis is ΣCT, and the thickness of the fifth lens is CT5, which satisfies the following relationship: 11<ΣCT / CT5<16.

1.

17. The optical imaging lens assembly as described in claim 1 or 2, wherein, The sixth lens has a thickness of CT6 and a focal length of f6, which satisfy the following relationship: 0.07 < CT6 / f6 < 0.

14.

18. The optical imaging lens assembly as described in claim 1 or 2, wherein, The combined focal length of the first to third lenses is f123, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: -5.6 < f123 / EFL < -3.

2.

19. The optical imaging lens assembly as described in claim 1 or 2, wherein, The radius of curvature of the object side of the sixth lens is R11, the radius of curvature of the image side of the sixth lens is R12, and the focal length of the sixth lens is f6, which satisfies the following relationship: 1 < (R11 * R12) / f6 < 5.

1.

20. The optical imaging lens assembly as described in claim 1 or 2, wherein, The first lens has a focal length of f1, the second lens has a focal length of f2, and the combined focal length of the first and second lenses is f12, which satisfies the following relationship: 0.2 < (f1 + f2) / f12 < 0.

23.

21. The optical imaging lens group of the first or second claim, wherein the focal length of the third lens is f3, the focal length of the fourth lens is f4, and the combined focal length of the third to fourth lenses is f34, satisfies the following relationship: -0.9 < (f3 + f4) / f34 < -0.

4.

22. The optical imaging lens assembly as described in claim 1 or 2, wherein, The fifth lens has a focal length of f5, the sixth lens has a focal length of f6, and the combined focal length of the fifth to sixth lenses is f56, which satisfies the following relationship: -2.8 < (f5 + f6) / f56 < -0.

2.

23. An imaging device comprising an optical imaging lens assembly as described in claim 1 or 2 and an image sensing element, wherein, The image sensing element is disposed on the imaging surface of the optical camera lens group.

24. An electronic device comprising an imaging device as described in claim 23.

Images