Optical imaging lens, imaging device and electronic device

Abstract

An optical imaging lens including a first lens element, a second lens element, an aperture, 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 second lens having positive refractive power and including an object-side surface being convex and an image-side surface being convex, the aperture, the third lens having positive refractive power and including an object-side surface being concave and an image-side surface being convex, the forth lens having negative refractive power and including an object-side surface being concave and an image-side surface being concave, the fifth lens having positive refractive power and including an object-side surface being concvex 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] The present invention relates to an optical camera lens assembly and an imaging device, particularly an optical camera 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 the optical camera lens assembly. [Previous Technology]

[0002] With advancements in semiconductor manufacturing technology, image sensing elements in photographic devices (such as CCD and CMOS image sensors) have been made smaller, thus improving the manufacturing convenience of miniaturized cameras. This has led to a trend in digital electronic products incorporating miniaturized cameras to provide image capture capabilities. However, in addition to adapting to the trend of miniaturization, photographic devices are also developing towards higher resolution and higher lens specifications to meet consumer needs, such as larger aspect ratios, wider field of view, and lower manufacturing costs.

[0003] With the diversification of electronic imaging devices, their applications are becoming increasingly widespread, such as Advanced Driver Assistance Systems (ADAS), dashcams, home surveillance cameras, smartphones, and human-computer interaction devices. This has led to more diverse design requirements for optical lenses. 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 images can easily lead to errors in distance calculations or image recognition.

[0004] Therefore, how to design 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, to solve the above problems, the present invention provides an optical imaging lens group, comprising a total of six lenses, arranged sequentially from the object side to the image side as follows: a first lens having negative refractive power, with its object side being convex and its image side being concave; a second lens having positive refractive power, with its object side being convex and its image side being convex; an aperture; a third lens having positive refractive power, with its object side being concave and its image side being convex; a fourth lens having negative refractive power, with its object side being concave and its image side being concave; and a fifth lens having positive refractive power, with its object side being convex and its image side being convex. A sixth lens has negative refractive power, its object side is convex, and its image side is concave; wherein, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the focal length of the optical imaging lens group is EFL, and the air gap between the second and third lenses is AT23, which satisfies the following relationship: -9 < (f4 + f5 + f6) / EFL < -3.4; and 0.03 < AT23 / EFL < 0.16.

[0006] The present invention further provides an optical imaging lens group, comprising a total of six lenses, arranged in the following order from the object side to the image side: a first lens having negative refractive power, with its object side being convex and its image side being concave; a second lens having positive refractive power, with its object side being convex and its image side being convex; an aperture; a third lens having positive refractive power, with its object side being concave and its image side being convex; a fourth lens having negative refractive power, with its object side being concave and its image side being concave; and a fifth lens having positive refractive power, with its object side being convex and its image side being convex. A sixth lens has negative refractive power, its object side is convex, and its image side is concave; wherein, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the focal length of the optical imaging lens group is EFL, and the air gap between the third and fourth lenses is AT34, which satisfies the following relationship: -9 < (f4 + f5 + f6) / EFL < -3.4; and 0.007 < AT34 / EFL < 0.03.

[0007] According to an embodiment of the present invention, the radius of curvature of the object surface of the fourth lens is R7, and the focal length of the fourth lens is f4, which satisfies the following relationship: 3.3 < R7 / f4 < 34.

[0008] According to an embodiment of the present invention, the radius of curvature of the object surface of the fourth lens is R7, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: -35 < R7 / EFL < -3.

[0009] 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: -15.5 < (CT3 - CT2) / AT23 < -2.

[0010] According to an embodiment of the present invention, the thickness of the third lens is CT3, the thickness of the fourth lens is CT4, and the air gap between the third and fourth lenses is AT34, which satisfies the following relationship: 11.0 < (CT3 + CT4) / AT34 < 57.0.

[0011] According to an embodiment of the present invention, the thickness of the first lens is CT1 and the thickness of the sixth lens is CT6, which satisfy the following relationship: 0.35 < CT1 / CT6 < 1.

[0012] According to an embodiment of the present invention, the air gap between the first and second lenses is AT12 and the air gap between the second and third lenses is AT23, which satisfies the following relationship: 1.9 < AT12 / AT23 < 10.5.

[0013] 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 focal length of the optical imaging lens group is EFL, which satisfies the following relationship: 0.15 < (f1 + f2) / EFL < 0.7.

[0014] According to an embodiment of the present invention, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: 0.07 < (f4 + f5)EFL < 0.37.

[0015] According to an embodiment of the present invention, the total length of the optical imaging lens group is TTL, and the air gap between the second and third lenses is AT23, which satisfies the following relationship: 25 < TTL / AT23 < 113.

[0016] According to an embodiment of the present invention, the total length of the optical imaging lens group is TTL, and the air gap between the third and fourth lenses is AT34, which satisfies the following relationship: 138 < TTL / AT34 < 550.

[0017] According to an embodiment of the present invention, the total length of the optical imaging lens group is TTL, and the thickness of the sixth lens is CT6, which satisfies the following relationship: 11 < TTL / CT6 < 24.

[0018] According to an embodiment of the present invention, the radius of curvature of the object plane of the fourth lens is R7, the radius of curvature of the image plane of the fourth lens is R8, and the focal length of the fourth lens is f4, which satisfy the following relationship: 2 < (R7 + R8) / f4 < 34.

[0019] 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, the thickness of the first lens is CT1, and the thickness of the second lens is CT2, which satisfy the following relationship: 0.14 < (f1 + f2) / (CT1 + CT2) < 0.8.

[0020] According to an embodiment of the present invention, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the thickness of the fourth lens is CT4, and the thickness of the fifth lens is CT5, which satisfy the following relationship: 0.1 < (f4 + f5) / (CT4 + CT5) < 0.5.

[0021] According to an embodiment of the present invention, the sum of the lens thicknesses of each lens in the optical imaging lens group on the optical axis is ΣCT, and the thickness of the fourth lens is CT4, which satisfies the following relationship: 11 < ΣCT / CT4 < 26.

[0022] According to an embodiment of the present invention, the sum of the distances between all adjacent lenses in the optical imaging lens group on the optical axis is ΣAT, and the air gap between the third and fourth lenses is AT34, which satisfies the following relationship: 28 < ΣAT / AT34 < 125.

[0023] According to an embodiment of the present invention, the thickness of the fourth lens is CT4 and the focal length of the fourth lens is f4, which satisfies the following relationship: -0.16 < CT4 / f4 < -0.1.

[0024] According to an embodiment of the present invention, the thickness of the sixth lens is CT6 and the focal length of the sixth lens is f6, which satisfies the following relationship: -0.06 < CT6 / f6 < -0.02.

[0025] 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.

[0026] The present invention further provides an electronic device comprising the imaging device as described above.

Implementation Method

[0027] 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 may 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.

[0028] 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 on the object-side surface 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.

[0029] In embodiments of the present invention, the object-side and image-side surfaces of each lens can be spherical or aspherical surfaces. 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.

[0030] In an embodiment of the present invention, the total track length (TTL) of the optical imaging lens group is defined as the distance on 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 the 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 of 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).

[0031] The present invention provides an optical imaging lens group, which includes a first lens, a second lens, an aperture, a third lens, a fourth lens, a fifth lens and a sixth lens in sequence from the object side to the image side.

[0032] The first lens has negative refractive power, its object-side surface is convex, and its image-side surface is concave. Preferably, the first lens can be made of glass to suit environments with large temperature differences. In embodiments of the present invention, the object-side surface and / or image-side surface of the first lens can be spherical to reduce manufacturing costs and facilitate processing.

[0033] 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 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 second lens can be aspherical, which helps to improve spherical aberration.

[0034] The third lens may have positive refractive power, with its object-side surface being concave and its image-side surface being convex. Preferably, the third lens may 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 third lens may be aspherical, which will help improve spherical aberration.

[0035] The fourth lens may have negative refractive power, and its object-side surface may be concave, while its image-side surface may also be concave. Preferably, the fourth lens may 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 may be aspherical, which will help improve spherical aberration.

[0036] The fifth lens may have positive refractive power, and its object-side surface may be convex, as may its image-side surface. Preferably, the fifth lens may be made of glass to suit environments with large temperature differences. In embodiments of the present invention, the object-side surface and / or image-side surface of the fifth lens may be aspherical, which will help improve spherical aberration.

[0037] The sixth lens may have negative refractive power, its object-side surface may be convex, and its image-side surface may be concave; preferably, the material of the sixth lens may be glass, to be suitable for environmental conditions with large temperature differences. In this embodiment of the invention, the object-side surface and / or image-side surface of the sixth lens may be aspherical, which will help improve spherical aberration.

[0038] The focal length of the fourth lens of the optical camera lens group is f4, 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 camera lens group is EFL, which satisfies the following relationship: 9 < (f4 + f5 + f6) / EFL < -3.4 (1).

[0039] When the relation (1) is satisfied, the fourth lens, the fifth lens and the sixth lens can cooperate with each other to adjust the volume distribution and reduce the spherical aberration and other aberrations produced by a single lens.

[0040] The air gap between the second and third lenses of the optical camera lens group is AT23, and the focal length of the optical camera lens group is EFL, which satisfies the following relationship: 0.03<AT23 / EFL<0.16(2).

[0041] When the relation (2) is satisfied, the lens distribution can be adjusted, which helps to balance the volume distribution of the imaging system lens group.

[0042] The air gap between the third and fourth lenses of the optical camera lens group is AT34, and the focal length of the optical camera lens group is EFL, which satisfies the following relationship: 0.007<AT34 / EFL<0.03(3).

[0043] When the relation (3) is satisfied, the lens distribution can be adjusted, which helps to balance the volume distribution of the imaging system lens group.

[0044] The radius of curvature of the object surface of the fourth lens of the optical imaging lens group is R7, and the focal length of the fourth lens is f4, which satisfies the following relationship: 3.3<R7 / f4<34(4).

[0045] When the 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 of the object side and the image side.

[0046] The radius of curvature of the object surface of the fourth lens of the optical camera lens group is R7, and the focal length of the optical camera lens group is EFL, which satisfies the following relationship: -35<R7 / EFL<-3(5).

[0047] When the relation (5) is satisfied, it helps to configure the convex and concave surfaces of the two surfaces of the fourth lens to correct the Petzval sum and make the imaging surface flatter.

[0048] 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 lens and the third lens is AT23, which satisfies the following relationship: -15.5<(CT3-CT2) / AT23<-2. (6)

[0049] When the relation (6) is satisfied, the second lens and the third lens can cooperate with each other, which helps to compress the volume of the object side of the image capturing system and increase the viewing angle.

[0050] The thickness of the third lens of the optical camera lens group is CT3, the thickness of the fourth lens is CT4, and the air gap between the third lens and the fourth lens is AT34, which satisfies the following relationship: 11.0<(CT3+CT4) / AT34<57.0(7).

[0051] When the relation (7) is satisfied, the third lens and the fourth lens can cooperate with each other, which helps to compress the volume of the object side of the image capturing system and increase the viewing angle.

[0052] The thickness of the first lens of the optical camera lens group is CT1 and the thickness of the sixth lens is CT6, which satisfy the following relationship: 0.35<CT1 / CT6<1(8).

[0053] When the relation (8) is satisfied, the first lens and the sixth lens can cooperate with each other, which helps to correct aberrations and compress the outer diameter of the object side of the optical lens for photography.

[0054] The air gap between the first lens and the second lens of the optical imaging lens group is AT12, and the air gap between the second lens and the third lens is AT23, which satisfies the following relationship: 1.9 < AT12 / AT23 < 10.5 (9).

[0055] When the relation (9) is satisfied, the ratio of the lens spacing between the first lens and the second lens and the lens spacing between the second lens and the third lens can be adjusted, which helps to improve the resolution of the central field of view and the surrounding field of view.

[0056] The focal length of the first lens of the optical imaging lens group is f1, the focal length of the second lens is f2, and the focal length of the optical lens group is EFL, which satisfies the following relationship: 0.15<(f1+f2) / EFL<0.7(10).

[0057] When the relation (10) is satisfied, the first lens and the second lens can cooperate to adjust the volume distribution and reduce aberrations such as spherical aberration produced by a single lens.

[0058] The focal length of the fourth lens of the optical camera lens group is f4, the focal length of the fifth lens is f5, and the focal length of the optical camera lens group is EFL, which satisfies the following relationship: 0.07<(f4+f5)EFL<0.37(11).

[0059] When the relation (11) is satisfied, the fourth lens and the fifth lens can cooperate to adjust the volume distribution and reduce the spherical aberration and other aberrations produced by a single lens.

[0060] The total length of the optical camera lens group is TTL, and the air gap between the second lens and the third lens is AT23, which satisfies the following relationship: 25<TTL / AT23<113(12).

[0061] When the relation (12) is satisfied, it helps to balance the spatial configuration between the second and third lenses while miniaturizing, so as to reduce the sensitivity of the imaging lens group and the influence of assembly tolerance.

[0062] The total length of the optical camera lens group is TTL, and the air gap between the third lens and the fourth lens is AT34, which satisfies the following relationship: 138<TTL / AT34<550(13).

[0063] When the relation (13) is satisfied, it helps to balance the spatial configuration between the third and fourth lenses while miniaturizing, so as to reduce the sensitivity of the imaging lens group and the influence of assembly tolerance.

[0064] The total length of the optical camera lens group is TTL, and the thickness of the sixth lens is CT6, which satisfies the following relationship: 11<TTL / CT6<24(14).

[0065] When the relation (14) is satisfied, by reasonably controlling the relationship between the center thickness and the total length of the third lens, it is beneficial to correct the aberration of the on-axis field of view and improve the imaging quality of the optical lens.

[0066] The object plane of the fourth lens of the optical imaging lens group has a radius of curvature of R7, the image plane of the fourth lens has a radius of curvature of R8, and the focal length of the fourth lens is f4, which satisfies the following relationship: 2<(R7+R8) / f4<34(15).

[0067] When the relation (15) is satisfied, the surface shape and refractive power of the fourth lens can be adjusted to correct the aberration.

[0068] The focal length of the first lens of the optical imaging lens group is f1, the focal length of the second lens is f2, the thickness of the first lens is CT1, and the thickness of the second lens is CT2, which satisfy the following relationship: 0.16<(f1+f2) / (CT1+CT2)<0.9(16).

[0069] When the relation (16) is satisfied, the changing trend 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.

[0070] The fourth lens of the optical imaging lens group has a focal length of f4, the fifth lens has a focal length of f5, the fourth lens has a thickness of CT4, and the fifth lens has a thickness of CT5, which satisfy the following relationship: 0.1<(f4+f5) / (CT4+CT5)<0.5. (17)

[0071] When the relation (17) 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.

[0072] The thickness of the third lens in the optical imaging lens group is CT3, the thickness of the fourth lens is CT4, and the air gap between the third and fourth lenses is AT34, which satisfies the following relationship: 11<ΣCT / CT4<26. (18)

[0073] When the relation (18) is satisfied, the fourth lens has sufficient thickness to help correct the higher-order aberrations produced by the wide-angle photographic lens system; and the lens distribution can be adjusted to compress the volume.

[0074] The sum of the distances between all adjacent lenses on the optical axis in this optical imaging lens group is ΣAT, and the air gap between the third and fourth lenses is AT34, which satisfies the following relationship: 28<ΣAT / AT34<125. (19)

[0075] When the relation (19) is satisfied, it can be ensured that the lens positions in the imaging lens group are evenly distributed, which is beneficial to balancing the center of gravity of the imaging lens group.

[0076] The thickness of the fourth lens in the optical imaging lens group is CT4, and the focal length of the fourth lens is f4, which satisfies the following relationship: -0.16<CT4 / f4<-0.1. (20)

[0077] When the relation (20) is satisfied, the thickness of the fourth lens can be adjusted to facilitate the thinning of the electronic device.

[0078] The thickness of the sixth lens in the optical imaging lens group is CT6, and the focal length of the sixth lens is f6, which satisfies the following relationship: -0.06<CT6 / f6<-0.02. (21)

[0079] When relation (21) is satisfied, the thickness of the sixth lens can be adjusted to facilitate the thinning of the electronic device. First Embodiment

[0080] 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-θ distortion, and longitudinal spherical aberration diagrams of the first embodiment of the present invention.

[0081] As shown in FIG1A, the optical imaging lens group 10 of the first embodiment includes, from the object side to the image side, a first lens 11, a second lens 12, an aperture ST, 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, a protective glass 18, 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).

[0082] The first lens 11 has negative refractive power, its object side 11a is convex and its image side 11b is concave, and both the object side 11a and the image side 11b are spherical. The material of the first lens 11 includes glass, but is not limited thereto.

[0083] 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 plastic, but is not limited thereto.

[0084] The third lens 13 has positive refractive power, its object-side surface 13a is concave and its image-side surface 13b is convex, 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.

[0085] The fourth lens 14 has negative refractive power, its object-side surface 14a is concave, its image-side surface 14b is concave, and both the object-side surface 14a and the image-side surface 14b are aspherical. The material of the fourth lens 14 includes plastic, but is not limited thereto.

[0086] The fifth lens 15 has positive refractive power, its object-side surface 15a is convex, its image-side surface 15b is convex, and both the object-side surface 15a and the image-side surface 15b are aspherical. The material of the fifth lens 15 includes glass, but is not limited thereto.

[0087] The sixth lens 16 has negative refractive power, its object-side surface 16a is convex and its image-side surface 16b is concave, and both the object-side surface 16a and the image-side surface 16b are aspherical. The material of the sixth lens 16 includes plastic, but is not limited thereto.

[0088] 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.

[0089] A protective glass 18 is disposed between the filter element 17 and the imaging surface 101 to protect the imaging surface 101. The two surfaces 18a and 18b of the protective glass 18 are both flat and are made of glass.

[0090] The image sensing element 102 is, for example, a charge-coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor.

[0091] Please refer to Table 1 below, which contains detailed optical data of the optical imaging lens group 10 of the first embodiment of the present invention. The object-side surface 11a of the first lens 11 is labeled as surface 11a, and 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 the surface to the next surface on 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 0.461 mm, representing that the thickness of the first lens 11 is 0.461 mm. The distance AT12 from the image-side surface 11b of the first lens 11 to the object-side surface 12a of the second lens 12 is 1.401 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 of the overall optical imaging lens group 10 is HFOV (Half Field of View), the values ​​of which are also listed in Table 1. First Embodiment TTL=15.02mm,EFL=3.67mm,FNO=2.4,HFOV=73.5° surface Surface types Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Subject flat Infinity First lens 11a spherical 13.297 0.461 1.804 46.6 -4.57 11b spherical 2.841 1.401 Second lens 12a aspherical 12.196 2.983 1.661 20.4 5.14 12b aspherical -4.299 -0.127 aperture ST flat Infinity 0.261 Third lens 13a aspherical -12.145 0.932 1.537 56.0 5.65 13b aspherical​​​​​​ -2.500 0.108 Fourth lens 14a aspherical -11.311 0.342 1.661 20.4 -3.41 14b aspherical 2.886 0.294 Fifth lens 15a aspherical 19.871 2.571 1.625 58.2 4.77 15b aspherical -3.339 1.102 Sixth lens 16a aspherical 3.338 1.311 1.537 56.0 -34.10 16b aspherical 2.436 0.684 Filter element 17a flat Infinity 0.500 1.523 54.5 inf 17b flat Infinity 1.550 CG 18a flat Infinity 0.500 1.523 54.5 inf 18b flat Infinity 0.150 Imaging surface 101 flat Infinity 0.000 Reference wavelength: 550nm Table 1

[0092] Please refer to Table 2 below, which shows the aspherical coefficients of each lens surface in the first embodiment of the present invention. Wherein, K is the conic coefficient in the aspherical curve equation, and A4 to A16 represent the 4th to 16th order aspherical coefficients of each surface. For example, the conic coefficient K of the object side 12a of the second lens 12 is -0.900. 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 of each table are the same as in this embodiment, so 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 -9.00E+01 -1.35E+01 2.89E+01 -5.29E+00 2.16E+00 -1.39E+01 5.39E+01 -1.56E+00 -6.48E+00 -3.06E+00 A4 3.77E-03 -5.90E-03 9.60E-03 -1.15E-02 -5.03E-02 -5.33E-03 8.00E-03​ -9.47E-03 -6.80E-03 -9.49E-03 A6 -1.33E-03 2.96E-03 -3.88E-03 -1.66E-02 1.21E-02 2.76E-04 -2.33E-03 1.51E-03 -3.91E-04 4.65E-04 A8 1.92E-04 -2.79E-03 -3.01E-03 3.76E-03 -7.22E-03 3.28E-05 3.51E-04 -2.15E-04 7.77E-05 -1.65E-05 A10 -1.74E-05 8.44E-04 -5.36E-04 -1.05E-03 1.59E-03 -2.72E-06 -2.20E-05 1.79E-05 -4.19E-06 1.12E-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 2

[0093] In the first embodiment, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the focal length of the optical imaging lens group is EFL, and (f4+f5+f6) / EFL = -8.922.

[0094] In the first embodiment, the air gap between the second and third lenses is AT23, the focal length of the optical imaging lens group is EFL, and AT23 / EFL = 0.037.

[0095] In the first embodiment, the air gap between the third and fourth lenses is AT34, the focal length of the optical imaging lens group is EFL, and AT34 / EFL = 0.03.

[0096] In the first embodiment, the radius of curvature of the object surface of the fourth lens is R7, the focal length of the fourth lens is f4, and R7 / f4 = 3.313.

[0097] In the first embodiment, the radius of curvature of the object surface of the fourth lens is R7, the focal length of the optical imaging lens group is EFL, and R7 / EFL = -3.082.

[0098] 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 = -15.309.

[0099] In the first embodiment, the thickness of the third lens is CT3, the thickness of the fourth lens is CT4, the air gap between the third and fourth lenses is AT34, and (CT3+CT4) / AT34=11.762.

[0100] In the first embodiment, the thickness of the first lens is CT1, the thickness of the sixth lens is CT6, and CT1 / CT6 = 0.352.

[0101] In the first embodiment, the air gap between the first and second lenses is AT12, and the air gap between the second and third lenses is AT23, where AT12 / AT23 = 10.455.

[0102] In the first embodiment, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the optical imaging lens group is EFL, and (f1+f2) / EFL = 0.156.

[0103] In the first embodiment, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the optical imaging lens group is EFL, and (f4+f5)EFL = 0.369.

[0104] In the first embodiment, the total length of the optical imaging lens group is TTL, the air gap between the second and third lenses is AT23, and TTL / AT23 = 112.107.

[0105] In the first embodiment, the total length of the optical imaging lens group is TTL, the air gap between the third and fourth lenses is AT34, and TTL / AT34 = 138.697.

[0106] In the first embodiment, the total length of the optical imaging lens group is TTL, the thickness of the sixth lens is CT6, and TTL / CT6 = 11.456.

[0107] In the first embodiment, the radius of curvature of the object plane of the fourth lens is R7, the radius of curvature of the image plane of the fourth lens is R8, the focal length of the fourth lens is f4, and (R7+R8) / f4 = 2.468.

[0108] In the first embodiment, the focal length of the first lens is f1, the focal length of the second lens is f2, the thickness of the first lens is CT1, the thickness of the second lens is CT2, and (f1+f2) / (CT1+CT2) = 0.166.

[0109] In the first embodiment, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the thickness of the fourth lens is CT4, the thickness of the fifth lens is CT5, and (f4+f5) / (CT4+CT5) = 0.465.

[0110] 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 fourth lens is CT4, and ΣCT / CT4 = 25.174.

[0111] In the first embodiment, the sum of the distances between all adjacent lenses on the optical axis in the optical imaging lens group is ΣAT, the air gap between the third and fourth lenses is AT34, and ΣAT / AT34 = 28.060.

[0112] In the first embodiment, the thickness of the fourth lens is CT4, the focal length of the fourth lens is f4, and CT4 / f4 = -0.100.

[0113] In the first embodiment, the thickness of the sixth lens is CT6, the focal length of the sixth lens is f6, and CT6 / f6 = -0.038.

[0114] As can be seen from the numerical values ​​of the above relations, the optical camera lens group 10 of the first embodiment satisfies the requirements of relations (1) to (21).

[0115] Referring to Figure 1B, from left to right, are the astigmatic field curvature aberration diagram, f-θ distortion diagram, and longitudinal spherical aberration diagram of the optical imaging lens group 10. The astigmatic field curvature aberration diagram (wavelength 550 nm) shows that the variation of aberration in the sagittal direction across the entire field of view is between -0.01 and 0.02 mm; the variation of aberration in the meridional direction across the entire field of view is between -0.04 and -0.01 mm. The f-θ distortion aberration diagram (wavelength 550 nm) shows that the absolute value of the f-θ distortion rate of the optical imaging lens group 10 is less than 2%. 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, and the imaging point deviation can be controlled between -0.06 and 0.03 mm. 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

[0116] 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-θ distortion, and longitudinal spherical aberration diagrams of the second embodiment of the present invention.

[0117] As shown in FIG2A, the optical imaging lens group 20 of the second embodiment includes, from the object side to the image side, a first lens 21, a second lens 22, an aperture ST, 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, a protective glass 28, 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).

[0118] 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.

[0119] 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 plastic, but is not limited thereto.

[0120] The third lens 23 has positive refractive power, its object-side surface 23a is concave and its image-side surface 23b is convex, 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.

[0121] The fourth lens 24 has negative refractive power, its object-side surface 24a is concave, its image-side surface 24b is concave, and 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 thereto.

[0122] The fifth lens 25 has positive refractive power, its object-side surface 25a is convex, its image-side surface 25b is convex, and both the object-side surface 25a and the image-side surface 25b are aspherical. The material of the fifth lens 25 includes glass, but is not limited thereto.

[0123] The sixth lens 26 has negative refractive power, its object-side surface 26a is convex and its image-side surface 26b is concave, and both the object-side surface 26a and the image-side surface 26b are aspherical. The material of the sixth lens 26 includes plastic, but is not limited thereto.

[0124] 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.

[0125] A protective glass 28 is disposed between the filter element 27 and the imaging surface 201 to protect the imaging surface 201. The two surfaces 28a and 28b of the protective glass 28 are both flat and are made of glass.

[0126] The image sensing element 202 is, for example, a charge-coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor.

[0127] Detailed optical data of the optical imaging lens group 20 of the second embodiment and the aspherical coefficient of the lens surface are listed in Tables 3 and 4, respectively. In the second embodiment, the curve equation of the aspherical surface is expressed in the form of the first embodiment. Second Embodiment TTL=15mm,EFL=3.6mm,FNO=2.3,HFOV=73.5° surface Surface types Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Subject flat Infinity First lens 21a spherical 11.506 0.629 1.804 46.6​​​​​​ -4.36 21b spherical 2.627 1.850 Second lens 22a aspherical 13.970 2.825 1.661 20.4 6.54 22b aspherical -5.825 0.061 aperture ST flat Infinity 0.209 Third lens 23a aspherical -17.870 1.026 1.537 56.0 5.42 22b aspherical -2.559 0.049 Fourth lens 24a aspherical -34.472 0.538 1.661 20.4 -4.24 24b aspherical 3.102 0.274 Fifth lens 25a aspherical 27.715 1.849 1.625 58.2 4.50 25b aspherical -3.060 1.677 Sixth lens 26a aspherical 3.898 0.741 1.537 56.0 -12.78 26b aspherical 2.323 0.672 Filter element 27a flat Infinity 0.400 1.523 54.5 inf 27b flat Infinity 1.550 CG 28a flat Infinity 0.500 1.523 54.5 inf 28b flat Infinity 0.150 Imaging surface 201 flat Infinity 0.000 Reference wavelength: 550nm Table 3 The aspheric coefficient in the second embodiment 22a 22b 23a 23b 24a 24b 25a 25b 26a 26b K -5.39E+01 -1.48E+01​ 7.96E+01 -2.62E+00 -3.39E+00 -1.31E+01 3.46E+01 -1.96E+00 -1.32E+01 -4.56E+00 A4 -4.22E-04 -7.16E-03 -4.89E-03 -1.02E-02 -4.62E-02 -2.62E-03 6.86E-03 -5.24E-03 -1.02E-02 -8.98E-03 A6 -1.32E-04 8.22E-04 -5.16E-03 -8.96E-03 1.25E-02 1.09E-04 -8.05E-04 6.03E-04 2.04E-04 5.95E-04 A8 -3.01E-06 -2.88E-04 7.58E-04 2.00E-03 -4.28E-03 -8.02E-06 2.76E-05 -1.00E-04 2.88E-05 -3.10E-05 A10 2.15E-07 6.87E-05 -1.34E-03 -7.27E-04 6.98E-04 -4.73E-06 -2.41E-07 1.49E-05 -3.35E-06 5.24E-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

[0128] 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 (21). Second Implementation Example No. Relationship Value 1 (f4+f5+f6) / EFL -3.477 2 AT23 / EFL 0.075 3 AT34 / EFL 0.014 4 R7 / f4 8.126 5 R7 / EFL -9.575 6 (CT3-CT2) / AT23 -6.663 7 (CT3+CT4) / AT34 31,874 8 CT1 / CT6 0.849 9 AT12 / AT23 6.853 10 (f1+f2) / EFL 0.606 11 (f4+f5)EFL 0.073 12 TTL / AT23 55.573 13 TTL / AT34 305.607 14 TTL / CT6 20.235 15 (R7+R8) / f4 7.395 16 (f1+f2) / (CT1+CT2) 0.631 17 (f4+f5) / (CT4+CT5) 0.109 18 ΣCT / CT4 14.144 19 ΣAT / AT34 83.946 20 CT4 / f4 -0.127 twenty one CT6 / f6 -0.058 Table 5

[0129] Referring to Figure 2B, from left to right, are the astigmatism field curvature aberration diagram, f-θ distortion diagram, and longitudinal spherical aberration diagram of the optical imaging lens group 20. The astigmatism field curvature aberration diagram (wavelength 550 nm) shows that the variation of aberration in the sagittal direction across the entire field of view is between -0.04 and 0.004 mm; the variation of aberration in the meridional direction across the entire field of view is between -0.04 and 0.03 mm. The f-θ distortion aberration diagram (wavelength 550 nm) shows that the absolute value of the f-θ distortion rate of the optical imaging lens group 20 is less than 3%. 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, and the imaging point deviation can be controlled between -0.14 and 0.07 mm. 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

[0130] 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-θ distortion, and longitudinal spherical aberration diagrams of the third embodiment of the present invention.

[0131] As shown in FIG3A, the optical imaging lens group 30 of the third embodiment includes, from the object side to the image side, a first lens 31, a second lens 32, an aperture ST, 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, a protective glass 38, 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).

[0132] The first lens 31 has negative refractive power, its object side 31a is convex and its image side 31b is concave, and both the object side 31a and the image side 31b are spherical. The material of the first lens 31 includes glass, but is not limited thereto.

[0133] 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 plastic, but is not limited thereto.

[0134] The third lens 33 has positive refractive power, its object-side surface 33a is concave and its image-side surface 33b is convex, 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.

[0135] The fourth lens 34 has negative refractive power, its object-side surface 34a is concave, its image-side surface 34b is concave, and 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 thereto.

[0136] The fifth lens 35 has positive refractive power, its object-side surface 35a is convex, its image-side surface 35b is convex, and both the object-side surface 35a and the image-side surface 35b are aspherical. The material of the fifth lens 35 includes glass, but is not limited thereto.

[0137] The sixth lens 36 has negative refractive power, its object-side surface 36a is convex and its image-side surface 36b is concave, and both the object-side surface 36a and the image-side surface 36b are aspherical. The material of the sixth lens 36 includes plastic, but is not limited thereto.

[0138] The 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 filtering element. The second surfaces 37a and 37b of the filter element 37 are both planar and made of glass.

[0139] A protective glass 38 is disposed between the filter element 37 and the imaging surface 301 to protect the imaging surface 301. The two surfaces 38a and 38b of the protective glass 38 are both flat and are made of glass.

[0140] The image sensing element 302 is, for example, a charge-coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor.

[0141] Detailed optical data of the optical imaging lens group 30 of the third embodiment and the aspherical coefficient of the lens surface are listed in Tables 6 and 7, respectively. In the second embodiment, the curve equation of the aspherical surface is expressed in the form of the first embodiment. Third Embodiment TTL=15.03mm,EFL=3.72mm,FNO=2.4,HFOV=73.5° surface Surface types Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Subject flat Infinity First lens 31a spherical 11.822 0.649 1.804 46.6 -3.98 31b spherical 2.538 1.284 Second lens 32a aspherical 21.578 2.414 1.661 20.4 6.15 32b aspherical -4.836 -0.157 aperture ST flat Infinity 0.654 Third lens 33a aspherical -12.917 0.893 1.537 56.0 5.68 ​​​​​​​​​33b aspherical -2.533 0.056 Fourth lens 34a aspherical -125.849 0.596 1.661 20.4 -3.71 34b aspherical 2.531 0.256 Fifth lens 35a aspherical 17.161 2.217 1.625 58.2 4.21 35b aspherical -2.963 1.273 Sixth lens 36a aspherical 2.993 0.651 1.537 56.0 -29.72 36b aspherical 2.330 1.651 Filter element 37a flat Infinity 0.400 1.523 54.5 inf 37b flat Infinity 1.550 CG 38a flat Infinity 0.500 1.523 54.5 inf 38b flat Infinity 0.150 Imaging surface 301 flat Infinity 0.000 Reference wavelength: 550nm Table 6 The aspheric coefficient in the third embodiment 32a 32b 33a 33b 34a 34b 35a 35b 36a 36b K -3.52E+01 -1.26E+01 7.03E+01 -7.86E+00 -9.07E+01 -1.13E+01 9.01E-01 -2.24E+00 -3.61E+00 -2.99E+00 A4 -4.51E-03 -1.45E-02 1.49E-03 -2.05E-02 -4.40E-02 -3.81E-03 6.41E-03 -5.75E-0 -1.12E-02 -1.41E-02 A6 -2.96E-05 1.85E-03 -4.15E-03​​​​ -9.31E-03 8.06E-03 4.02E-04 -1.18E-03 3.10E-04 1.61E-04 8.35E-04 A8 -3.39E-05 -5.80E-04 -1.23E-03 1.71E-03 -3.28E-03 1.00E-05 8.76E-05 -5.34E-05 3.20E-05 -4.08E-05 A10 -1.04E-05 1.51E-04 -2.96E-04 -5.94E-04 6.69E-04 -1.45E-06 -1.60E-06 7.58E-06 -3.59E-06 5.27E-07 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 -1.92E-08 -3.94E-07 1.45E-10 -9.34E-10 -9.34E-10 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 3.35E-09 2.76E-10 2.76E-10 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

[0142] 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 (21). Third Embodiment No. Relationship numerical values 1 (f4+f5+f6) / EFL -7.855 2 AT23 / EFL 0.133 3 AT34 / EFL 0.015 4 R7 / F4 33.894 5 R7 / EFL -33.830 6 (CT3-CT2) / AT23 -3.062 7 (CT3+CT4) / AT34 26.384 8 CT1 / CT6 0.997 9 AT12 / AT23 2.586 10 (f1 + f2) / EFL 0.582 11 (f4 + f5)EFL 0.134 12 TTL / AT23 30.273 13 TTL / AT34 266.249 14 TTL / CT6 23.095 15 (R7 + R8) / f4 33.212 16 (f1 + f2) / (CT1 + CT2) 0.707 17 (f4 + f5) / (CT4 + CT5) 0.177 18 ΣCT / CT4 12.452 19 ΣAT / AT34 59.614 20 CT4 / f4 - 0.160 21 CT6 / f6 - 0.022<� Table VIII

[0143] Referring to Figure 3B, from left to right, the figure shows the astigmatism field curvature aberration diagram, f-θ distortion diagram, and longitudinal spherical aberration diagram of the optical imaging lens group 30. The astigmatism field curvature aberration diagram (wavelength 550 nm) shows that the variation of aberration in the sagittal direction across the entire field of view is between -0.06 and 0.00 mm; the variation of aberration in the meridional direction across the entire field of view is between -0.15 and 0.04 mm. The f-θ distortion aberration diagram (wavelength 550 nm) shows that the absolute value of the f-θ distortion rate of the optical imaging lens group 30 is less than 2%. 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, and the imaging point deviation can be controlled between -0.07 and 0.02 mm. 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

[0144] 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-θ distortion, and longitudinal spherical aberration diagrams of the fourth embodiment of the present invention.

[0145] As shown in FIG4A, the optical imaging lens group 40 of the fourth embodiment includes, from the object side to the image side, a first lens 41, a second lens 42, an aperture ST, 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, a protective glass 48, 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).

[0146] The first lens 41 has negative refractive power, its object side 41a is convex and its image side 41b is concave, and both the object side 41a and the image side 41b are spherical. The material of the first lens 41 includes glass, but is not limited thereto.

[0147] 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 plastic, but is not limited thereto.

[0148] The third lens 43 has positive refractive power, its object-side surface 43a is concave and its image-side surface 43b is convex, 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 thereto.

[0149] The fourth lens 44 has negative refractive power, its object-side surface 44a is concave, its image-side surface 44b is concave, and 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 thereto.

[0150] The fifth lens 45 has positive refractive power, its object-side surface 45a is convex, its image-side surface 45b is convex, and both the object-side surface 45a and the image-side surface 45b are aspherical. The material of the fifth lens 45 includes glass, but is not limited thereto.

[0151] The sixth lens 46 has negative refractive power, its object-side surface 46a is convex and its image-side surface 46b is concave, and both the object-side surface 46a and the image-side surface 46b are aspherical. The material of the sixth lens 46 includes plastic, but is not limited thereto.

[0152] The 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 filtering element. The second surfaces 47a and 47b of the filter element 47 are both planar and made of glass.

[0153] A protective glass 48 is disposed between the filter element 47 and the imaging surface 401 to protect the imaging surface 401. The two surfaces 48a and 48b of the protective glass 48 are both flat and are made of glass.

[0154] The image sensing element 402 is, for example, a charge-coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor.

[0155] Detailed optical data of the optical imaging lens group 40 of the fourth embodiment and the aspherical coefficient of the lens surface are listed in Tables 9 and 10, respectively. In the second embodiment, the curve equation of the aspherical surface is expressed in the form of the first embodiment. Fourth embodiment TTL=15mm,EFL=3.81mm,FNO=2.4,HFOV=73.5° surface Surface types ​Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Subject flat Infinity First lens 41a spherical 15.273 0.616 1.834 42.7 -3.94 41b spherical 2.665 1.179 Second lens 42a aspherical 23.334 2.216 1.661 20.4 6.26 42b aspherical -4.893 -0.150 aperture ST flat Infinity 0.748 Third lens 43a aspherical -13.008 0.917 1.537 56.0 5.48 43b aspherical -2.463 0.027 Fourth lens 44a aspherical​​​​​​​​ -113.136 0.625 1.661 20.4 -3.73 44b aspherical 2.549 0.331 Fifth lens 45a aspherical 16.625 2.196 1.625 58.2 4.24 45b aspherical -2.979 1.262 Sixth lens 46a aspherical 3.074 0.695 1.537 56.0 -28.35 46b aspherical 2.357 1.746 Filter element 47a flat Infinity 0.400 1.523 54.5 inf 47b flat Infinity 1.550 CG 48a flat Infinity 0.500 1.523 54.5 inf 48b flat Infinity 0.150 Imaging surface 401 flat Infinity 0.000 Reference wavelength: 550nm Table 9 Aspheric coefficient of the fourth embodiment 42a 42b 43a 43b 44a 44b 45a 45b 46a 46b K -1.76E+01 -1.23E+01 6.97E+01 -7.57E+00 -1.15E+02 -1.12E+01 1.09E+00 -2.22E+00 -3.67E+00 -2.83E+00 A4 -4.98E-03 -1.47E-02 1.52E-03 -2.04E-02 -4.36E-02 -4.49E-03 6.74E-03 -5.87E-03 -1.09E-02 -1.38E-02 A6 -1.36E-04 1.95E-03 -4.49E-03 -9.11E-03 7.76E-03 3.40E-04 -1.15E-03 ​​​​3.51E-04 1.24E-04 8.57E-04 A8 -3.69E-05 -6.76E-04 -5.44E-04 1.77E-03 -3.35E-03 -3.91E-06 8.97E-05 -3.75E-05 3.27E-05 -4.07E-05 A10 -1.14E-05 1.75E-04 -5.14E-04 -5.93E-04 6.94E-04 4.74E-07 -2.64E-06 7.15E-06 -3.36E-06 4.92E-07 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.97E-08 -3.61E-07 9.22E-09 -7.48E-09 -7.48E-09 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 -2.42E-09 4.54E-10 4.54E-10 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 10

[0156] In the fourth embodiment, the values ​​of each relation of the optical camera lens group 40 are listed in Table 11. As can be seen from Table 11, the optical camera lens group 40 of the fourth embodiment satisfies the requirements of relations (1) to (21). Fourth embodiment No. Relationship numerical values 1 (f4+f5+f6) / EFL -7.306 2 AT23 / EFL 0.157 3 AT34 / EFL 0.007 4 R7 / F4 30.340 5 R7 / EFL -29.695 6 (CT3-CT2) / AT23 -2.175 7 (CT3+CT4) / AT34 56.424 8 CT1 / CT6 0.886 9 AT12 / AT23 1.973 10 (f1+f2) / EFL 0.609 11 (f4+f5)EFL 0.134 12 TTL / AT23 25.101 13 TTL / AT34 549.045 14 TTL / CT6 21.574 15 (R7+R8) / f4 29.656 16 (f1+f2) / (CT1+CT2) 0.820 17 (f4+f5) / (CT4+CT5) 0.182 18 ΣCT / CT4 11.625 19 ΣAT / AT34 124.320 20 CT4 / f4 -0.168 twenty one CT6 / f6 -0.025 Table 11

[0157] Referring to Figure 4B, from left to right, are the astigmatism aberration diagram, f-θ distortion diagram, and longitudinal spherical aberration diagram of the optical imaging lens group 40. The astigmatism aberration diagram (wavelength 550 nm) shows that the variation of aberration in the sagittal direction across the entire field of view is between -0.05 and -0.02 mm; the variation of aberration in the meridional direction across the entire field of view is between -0.11 and 0.03 mm. The f-θ distortion aberration diagram (wavelength 550 nm) shows that the absolute value of the f-θ distortion rate of the optical imaging lens group 40 is less than 5%. 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, and the imaging point deviation can be controlled within -0.05 to 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

[0158] 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-θ distortion, and longitudinal spherical aberration of the fifth embodiment of the present invention.

[0159] As shown in FIG. 5A, the optical imaging lens group 50 of the fifth embodiment includes, from the object side to the image side, a first lens 51, a second lens 52, an aperture ST, 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, a protective glass 58, 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).

[0160] The first lens 51 has negative refractive power, its object side 51a is convex and its image side 51b is concave, and both the object side 51a and the image side 51b are spherical. The material of the first lens 51 includes glass, but is not limited thereto.

[0161] 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 plastic, but is not limited thereto.

[0162] The third lens 53 has positive refractive power, its object-side surface 53a is concave and its image-side surface 53b is convex, and 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 thereto.

[0163] The fourth lens 54 has negative refractive power, its object-side surface 54a is concave, its image-side surface 54b is concave, and 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 thereto.

[0164] The fifth lens 55 has positive refractive power, its object-side surface 55a is convex, its image-side surface 55b is convex, and both the object-side surface 55a and the image-side surface 55b are aspherical. The material of the fifth lens 55 includes glass, but is not limited thereto.

[0165] The sixth lens 56 has negative refractive power, its object-side surface 56a is convex and its image-side surface 56b is concave, and 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 thereto.

[0166] The 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 filtering element. The second surfaces 57a and 57b of the filter element 57 are both planar and made of glass.

[0167] A protective glass 58 is disposed between the filter element 57 and the imaging surface 501 to protect the imaging surface 501. The two surfaces 58a and 58b of the protective glass 58 are both flat and are made of glass.

[0168] The image sensing element 502 is, for example, a charge-coupled device (CCD) image sensor or a complementary metal-oxide-semiconductor (CMOS) image sensor.

[0169] Detailed optical data of the optical imaging lens group 50 of the fifth embodiment and the aspherical coefficient of the lens surface are listed in Tables 12 and 13, respectively. In the fifth embodiment, the curve equation of the aspherical surface is expressed in the form of the first embodiment. Fifth embodiment TTL=15.03mm,EFL=3.78mm,FNO=2.4,HFOV=73.5° surface Surface types Radius of curvature (mm) Distance (mm) Refractive index Dispersion coefficient Focal length (mm) Subject flat Infinity First lens 51a spherical 19.041 0.629 1.834 42.7 -3.73 51b spherical 2.646 1.010 ​​​​​​Second lens 52a aspherical 22.642 2.340 1.661 20.4 6.17 52b aspherical -4.824 0.114 aperture ST flat Infinity 0.384 Third lens 53a aspherical -13.074 1.005 1.537 56.0 5.45 53b aspherical -2.462 0.104 Fourth lens 54a aspherical -130.336 0.502 1.661 20.4 -3.89 54b aspherical 2.655 0.310 Fifth lens 55a aspherical 17.193 2.326 1.625 58.2 4.28 55b aspherical -2.992 1.243 Sixth lens 56a aspherical 3.128 0.660 1.537 56.0 -25.53 56b aspherical 2.360 1.805 Filter element 57a flat Infinity 0.400 1.523 54.5 inf 57b flat Infinity 1.550 CG 58a flat Infinity 0.500 1.523 54.5 inf 58b flat Infinity 0.150 Imaging surface 501 flat Infinity 0.000 Reference wavelength: 550nm Table 12 The aspheric coefficient of the fifth embodiment 52a 52b 53a 53b 54a 54b 55a 55b 56a 56b K 1.98E+01 -1.43E+01 7.26E+01 -7.35E+00 -1.11E+02 -1.22E+01 ​8.09E-01 -2.23E+00 -4.29E+00 -3.11E+00 A4 -4.55E-03 -1.40E-02 1.51E-03 -2.01E-02 -4.25E-02 -5.29E-03 6.76E-03 -5.85E-03 -1.16E-02 -1.42E-02 A6 4.79E-05 2.18E-03 -3.92E-03 -8.62E-03 7.91E-03 3.17E-04 -1.17E-03 3.28E-04 9.23E-05 8.50E-04 A8 -1.18E-05 -5.62E-04 -2.46E-04 1.93E-03 -3.44E-03 3.67E-06 8.53E-05 -3.94E-05 2.92E-05 -4.15E-05 A10 -1.29E-05 6.75E-05 -7.38E-04 -6.53E-04 6.55E-04 1.83E-06 -2.70E-06 7.06E-06 -3.45E-06 4.49E-07 A12 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.13E-07 -4.05E-07 2.05E-09 -5.94E-09 -5.94E-09 A14 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 -4.49E-09 1.36E-09 1.36E-09 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 Thirteen

[0170] In the fifth embodiment, the numerical values ​​of each relation of the optical imaging lens group 50 are listed in Table 14. As can be seen from Table 14, the optical imaging lens group 50 of the fifth embodiment satisfies the requirements of relations (1) to (21). Fifth Implementation No. Relationship Value 1 (f4+f5+f6) / EFL -6.651 2 AT23 / EFL 0.132 3 AT34 / EFL 0.028 4 R7 / f4 33.471 5 R7 / EFL -34.480 6 (CT3-CT2) / AT23 -2.679 7 (CT3+CT4) / AT34 14.481 8 CT1 / CT6 0.954 9 AT12 / AT23 2.026 10 (f1+f2) / EFL 0.646 11 (f4+f5)EFL 0.103 12 TTL / AT23 30.158 13 TTL / AT34 144.411 14 TTL / CT6 22.780 15 (R7+R8) / f4 32.789 16 (f1+f2) / (CT1+CT2) 0.822 17 (f4+f5) / (CT4+CT5) 0.138 18 ΣCT / CT4 14.861 19 ΣAT / AT34 30.410 20 CT4 / f4 -0.129 21 CT6 / f6 -0.026 Table 14

[0171] Referring to Figure 5B, from left to right, are the astigmatism field curvature aberration diagram, f-θ distortion diagram, and longitudinal spherical aberration diagram of the optical imaging lens group 50. The astigmatism field curvature aberration diagram (wavelength 550 nm) shows that the variation of aberration in the sagittal direction across the entire field of view is within -0.07 to -0.03 mm; the variation of aberration in the meridional direction across the entire field of view is between -0.14 and 0.04 mm. The f-θ distortion aberration diagram (wavelength 550 nm) shows that the absolute value of the f-θ distortion rate of the optical imaging lens group 50 is less than 4%. 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, and the imaging point deviation can be controlled between -0.04 and 0.02 mm. 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

[0172] Referring to FIG6, 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 element 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 element 102, 202, 302, 402, and 502 are, for example, charge-coupled devices (CCD) or complementary metal-oxide-semiconductor (CMOS) image sensing elements.

[0173] In Figure 6, a vehicle electronic device 1000 according to a sixth embodiment of the present invention includes an imaging device 1010, wherein the vehicle electronic device 1000 is used to observe, monitor, sense and / or record the environment and state outside the vehicle. Seventh Embodiment

[0174] 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.

[0175] Although the present invention has been described using the foregoing embodiments, these embodiments are not intended to limit the scope of the present 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 present 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. [Simplified Explanation of the Diagram]

[0176] [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 are the astigmatism aberration diagram, distortion diagram, and longitudinal spherical aberration diagram of the first embodiment of the present invention; [Figure 2A] is a schematic diagram of the optical imaging lens group of the second embodiment of the present invention; [Figure 2B] from left to right are 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 group of the third embodiment of the present invention; [Figure 3B] from left to right are 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 group of the fourth embodiment of the present invention; [Figure 4B] from left to right are 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 of the fifth embodiment of the present invention; [Figure 5B] From left to right, these are 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 the sixth embodiment of the present invention; [Figure 07] is a schematic diagram of a general electronic device according to the seventh embodiment of the present invention.

Claims

1. An optical imaging lens assembly comprising six lenses, arranged sequentially from the object side to the image side: a first lens having negative refractive power, with a convex object side and a concave image side; a second lens having positive refractive power, with a convex object side and a convex image side; an aperture; a third lens having positive refractive power, with a concave object side and a convex image side; a fourth lens having negative refractive power, with a concave object side and a concave image side; a fifth lens having positive refractive power, with a convex object side and a convex image side; and a sixth lens having negative refractive power, with a convex object side and a concave image side; wherein... The fourth lens has a focal length of f4, the fifth lens has a focal length of f5, the sixth lens has a focal length of f6, the air gap between the second and third lenses is AT23, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: -9 < (f4 + f5 + f6) / EFL < -3.4; and 0.03 < AT23 / EFL < 0.

16.

2. An optical imaging lens assembly comprising six lenses, arranged sequentially from the object side to the image side: a first lens having negative refractive power, with a convex object side and a concave image side; a second lens having positive refractive power, with a convex object side and a convex image side; an aperture; a third lens having positive refractive power, with a concave object side and a convex image side; a fourth lens having negative refractive power, with a concave object side and a concave image side; a fifth lens having positive refractive power, with a convex object side and a convex image side; and a sixth lens having negative refractive power, with a convex object side and a concave image side. The fourth lens has a focal length of f4, the fifth lens has a focal length of f5, the sixth lens has a focal length of f6, the air gap between the third and fourth lenses is AT34, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: -9 < (f4 + f5 + f6) / EFL < -3.4; and 0.007 < AT34 / EFL < 0.

03.

3. The optical imaging lens assembly as described in claim 1 or 2, wherein, The radius of curvature of the object surface of the fourth lens is R7, and the focal length of the fourth lens is f4, which satisfies the following relationship: 3.3 < R7 / f4 < 34.

4. The optical imaging lens assembly as described in claim 1 or 2, wherein, The radius of curvature of the object surface of the fourth lens is R7, and the focal length of the optical imaging lens group is EFL, which satisfies the following relationship: -35 < R7 / EFL < -3.

5. 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: -15.5 < (CT3 - CT2) / AT23 < -2.

6. The optical imaging lens assembly as described in claim 1 or 2, wherein, The thickness of the third lens is CT3, the thickness of the fourth lens is CT4, and the air gap between the third and fourth lenses is AT34, which satisfies the following relationship: 11.0 < (CT3 + CT4) / AT34 < 57.

0.

7. 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 sixth lens is CT6, which satisfy the following relationship: 0.35 < CT1 / CT6 < 1.

8. 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 air gap between the second and third lenses is AT23, which satisfies the following relationship: 1.9 < AT12 / AT23 < 10.

5.

9. 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 optical imaging lens group has a focal length of EFL, which satisfies the following relationship: 0.15 < (f1 + f2) / EFL < 0.

7.

10. The optical imaging lens assembly as described in claim 1 or 2, wherein, The fourth lens has a focal length of f4, the fifth lens has a focal length of f5, and the optical imaging lens group has a focal length of EFL, which satisfies the following relationship: 0.07 < (f4 + f5)EFL < 0.

37.

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 air gap between the second and third lenses is AT23, which satisfies the following relationship: 25 < TTL / AT23 < 113.

12. 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 air gap between the third and fourth lenses is AT34, which satisfies the following relationship: 138 < TTL / AT34 < 550.

13. 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 sixth lens is CT6, which satisfies the following relationship: 11 < TTL / CT6 < 24.

14. The optical imaging lens assembly as described in claim 1 or 2, wherein, The object plane of the fourth lens has a radius of curvature of R7, the image plane of the fourth lens has a radius of curvature of R8, and the focal length of the fourth lens is f4. These satisfy the following relationship: 2 < (R7 + R8) / f4 < 34.

15. 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, the first lens has a thickness of CT1, and the second lens has a thickness of CT2, which satisfy the following relationship: 0.16 < (f1 + f2) / (CT1 + CT2) < 0.

9.

16. The optical imaging lens assembly as described in claim 1 or 2, wherein, The fourth lens has a focal length of f4, the fifth lens has a focal length of f5, the fourth lens has a thickness of CT4, and the fifth lens has a thickness of CT5. These satisfy the following relationship: 0.1 < (f4 + f5) / (CT4 + CT5) < 0.

5.

17. 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 fourth lens is CT4, which satisfies the following relationship: 11 < ΣCT / CT4 < 26.

18. The optical imaging lens assembly as described in claim 1 or 2, wherein, The sum of the distances between all adjacent lenses on the optical axis in the optical imaging lens group is ΣAT, and the air gap between the third and fourth lenses is AT34, which satisfies the following relationship: 28<ΣAT / AT34<125.

19. The optical imaging lens assembly as described in claim 1 or 2, wherein, The thickness of the fourth lens is CT4, and the focal length of the fourth lens is f4, which satisfies the following relationship: -0.16 < CT4 / f4 < -0.

1.

20. 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: -0.06 < CT6 / f6 < -0.

02.

21. 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.

22. An electronic device comprising an imaging device as described in claim 21.