Imaging lens assembly, camera module and electronic device

Abstract

An imaging lens assembly includes, in order from an object side to an image side, a first lens having negative refractive power, a focusing assembly, a second lens having positive refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, a fifth lens having negative refractive power, and a sixth lens having negative refractive power. When the imaging lens assembly satisfies certain conditions, not only can it be quickly focused, but it also has miniaturization, a large viewing angle, assembly convenience, and high imaging quality.

Description

Technical Field

[0001] This invention relates to an imaging lens assembly, and more particularly to an imaging lens assembly with fast focusing capability, a camera module, and an electronic device. Background Technology

[0002] In recent years, the application of camera lenses has become increasingly widespread, and the demand for autofocus (AF) camera lenses is even greater. Traditional AF technology generally uses the movement of the lens to achieve the best image quality at different object distances, but it is easily limited by physical structural constraints, resulting in an overall bulky size, poor image quality, and assembly difficulties. Summary of the Invention

[0003] Therefore, the purpose of this invention is to provide an imaging lens group, a camera module, and an electronic device that can overcome the problems of the prior art, and can achieve rapid focusing, miniaturization, wide viewing angle, ease of assembly, and high imaging quality.

[0004] According to one embodiment of the present invention, an imaging lens assembly is provided, comprising, from the object side to the image side, the following in sequence: a first lens having negative refractive power; a focusing assembly; a second lens having positive refractive power; a third lens having negative refractive power; a fourth lens having positive refractive power; a fifth lens having negative refractive power; and a sixth lens having negative refractive power.

[0005] In this imaging lens group, the distance on the optical axis from the object-side surface of the first lens to an imaging surface is TL; the maximum effective radius of the object-side surface of the first lens is CA1; the maximum effective radius of the image-side surface of the first lens is CA2; half of the maximum viewing angle of the imaging lens group is HFOV; the maximum imaging height of the imaging lens group is IMH; the displacement parallel to the optical axis from the position of the maximum effective radius on the image-side surface of the first lens to the position of the maximum effective radius on the object-side surface of the second lens is ETR2R3; the distance on the optical axis between the object-side surface of the second lens and the image-side surface of the sixth lens is TR3R12; the radius of curvature of the object-side surface of the first lens is R1; the radius of curvature of the image-side surface of the first lens is R2; the radius of curvature of the image-side surface of the second lens is R4; and the radius of curvature of the object-side surface of the fourth lens is... The diameter is R7, the radius of curvature of the object-side surface of the fifth lens is R9, the radius of curvature of the image-side surface of the fifth lens is R10, the thickness of the first lens on the optical axis is CT1, the thickness of the second lens on the optical axis is CT2, the thickness of the fourth lens on the optical axis is CT4, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the distance between the focusing assembly and the first lens on the optical axis is Tair, the distance between the fourth lens and the fifth lens on the optical axis is T45, the dispersion coefficient of the first lens is vd1, the dispersion coefficient of the sixth lens is vd6, the angle at which the principal ray at the maximum viewing angle of the imaging lens group incident on the imaging plane is CRA, the entrance pupil diameter of the imaging lens group is EPD, and at least one of the following conditions is satisfied:

[0006] 3.7 < (TL / CA1) * tan(HFOV) < 8;

[0007] 4.22 < TL / CA2 < 7.39;

[0008] 1.95 < IMH / ETR2R3 < 3.58;

[0009] 2.97 < TL / CA1 < 5.2;

[0010] -5.87 < R1 / CT4 < 105.22;

[0011] -0.59 < R1 / R2 < 31.3;

[0012] 1.41 < f6 / f1 < 15.39;

[0013] -9.95 < f5 / f2 < -3.17;

[0014] 2.06 < Tair / T45 < 18.39;

[0015] 1.08 < CT2 / CT1 < 5.12;

[0016] -0.18 < R1 / R7 < 21.26;

[0017] 1.15 < R7 / R2 < 5.74;

[0018] 2.2 < vd1 / vd6 < 5.09;

[0019] 2.39 < TR3R12 / CT2 < 5.97;

[0020] 23.93° / mm<CRA / EPD<46.9° / mm;

[0021] -12.32° / mm < CRA / R10 < -2.16° / mm; and

[0022] 0.68 < R9 / R4 < 3.69.

[0023] When 3.7 < (TL / CA1) * tan(HFOV) < 8, it helps to achieve fast focusing, miniaturization, wide angle of view and high image quality.

[0024] When 4.22 < TL / CA2 < 7.39, it helps to achieve the effect of miniaturized lens.

[0025] When 1.95 < IMH / ETR2R3 < 3.58, it helps to achieve the effect of miniaturized lens.

[0026] When 2.97 < TL / CA1 < 5.2, it helps to achieve the effect of miniaturized lens.

[0027] When -5.87 < R1 / CT4 < 105.22, it helps to achieve the effect of miniaturized lens.

[0028] When -0.59 < R1 / R2 < 31.3, adjusting the lens curvature helps to correct the aberrations of the imaging lens group, thereby improving the imaging quality of the imaging lens group.

[0029] When 1.41 < f6 / f1 < 15.39, it helps to distribute the refractive power of the imaging lens group more appropriately, thereby reducing distortion.

[0030] When -9.95 < f5 / f2 < -3.17, it helps to distribute the refractive power of the imaging lens group more appropriately, thereby reducing distortion.

[0031] When 2.06 < Tair / T45 < 18.39 is satisfied, it helps to reduce the difficulty of lens assembly.

[0032] When 1.08 < CT2 / CT1 < 5.12, it helps to balance the thickness of the second and third lenses, thereby achieving a proper balance between miniaturization and lens formability.

[0033] When -0.18 < R1 / R7 < 21.26, adjusting the lens curvature helps correct aberrations in the imaging lens group, thereby improving the imaging quality of the imaging lens group.

[0034] When 1.15 < R7 / R2 < 5.74, adjusting the lens curvature helps correct aberrations in the imaging lens group, thereby improving the imaging quality of the imaging lens group.

[0035] When 2.2 < vd1 / vd6 < 5.09, it helps to correct the chromatic aberration of the imaging lens group, thereby improving the imaging quality of the imaging lens group.

[0036] When 2.39 < TR3R12 / CT2 < 5.97, it helps to achieve the effect of miniaturized lens.

[0037] When the parameters 23.93° / mm < CRA / EPD < 46.9° / mm are met, it helps to improve the matching between the lens's principal ray angle and the image sensor.

[0038] When -12.32° / mm < CRA / R10 < -2.16° / mm is satisfied, adjusting the lens curvature helps to correct the principal ray angle for better matching of the image sensor.

[0039] When 0.68 < R9 / R4 < 3.69 is satisfied, adjusting the lens curvature helps to correct the aberrations of the imaging lens group, thereby improving the imaging quality of the imaging lens group.

[0040] Alternatively, by removing the focusing assembly, the total number of lenses with refractive power in the imaging lens group is 6.

[0041] Furthermore, according to one embodiment, the present invention also provides a camera module comprising: the above-described imaging lens group; and an image sensor disposed on the imaging surface of the imaging lens group.

[0042] Furthermore, according to one embodiment, the present invention also provides an electronic device comprising: the above-described imaging lens group; an image sensor disposed on the imaging surface of the imaging lens group; and a control processing module electrically connected to the focusing assembly and the image sensor. Attached Figure Description

[0043] Other aspects and advantages of the invention will become apparent after studying the detailed description in conjunction with the following accompanying drawings:

[0044] Figure 1A , 2AFigures 3A, 4A, 5A, 6A, 7A, 8A, and 9A are schematic diagrams of the imaging lens groups in the second to tenth embodiments of the present invention.

[0045] Figure 1B , 2B Figures 3B, 4B, 5B, 6B, 7B, 8B, and 9B are field curvature and distortion curves of the imaging lens group in the second to tenth embodiments when the object distance is infinite (telephoto).

[0046] Figure 1C , 2C 3C, 4C, 5C, 6C, 7C, 8C and 9C are the field curvature and distortion curves of the imaging lens group of the second to tenth embodiments at an object distance of 500mm (central focal length);

[0047] Figure 1D , 2D The field curvature and distortion curves of the imaging lens groups in the second to tenth embodiments are respectively, when the object distance is 300mm (near focal length).

[0048] Figure 1E , 2E 3E, 4E, 5E, 6E, 7E, 8E and 9E are the relationship curves of the modulus of the optical transfer function of the imaging lens group in the second to tenth embodiments when the object distance is infinite (telephoto), and are generated based on the simulated wavelength range of 0.435μm to 0.650μm.

[0049] Figure 1F , 2F 3F, 4F, 5F, 6F, 7F, 8F and 9F are the relationship curves of the modulus of the optical transfer function of the imaging lens group in the second to tenth embodiments at an object distance of 500mm (central focal length), and are generated based on the simulated wavelength range of 0.435μm to 0.650μm.

[0050] Figure 1G , 2G The graphs for the relationship between the modulus of the optical transfer function and the offset of the focal point for the imaging lens groups of the second to tenth embodiments at an object distance of 300 mm (near focus) are generated based on the simulated wavelength range of 0.435 μm to 0.650 μm.

[0051] Figure 10 A schematic diagram illustrating the parameters of the imaging lens group of the present invention in an example based on the second embodiment;

[0052] Figure 11 A block diagram of a camera module according to an embodiment of the present invention; and

[0053] Figure 12 This is a block diagram of an electronic device according to an embodiment of the present invention.

[0054] in:

[0055] 100, 200, 300, 400, 500, 600, 700, 800, 900: Aperture;

[0056] 110, 210, 310, 410, 510, 610, 710, 810, 910: First lens;

[0057] 111,211,311,411,511,611,711,811,911: Object side surface;

[0058] 112,212,312,412,512,612,712,812,912: Image side surface;

[0059] 120, 220, 320, 420, 520, 620, 720, 820, 920: Second lens;

[0060] 121,221,321,421,521,621,721,821,921: Object side surface;

[0061] 122,222,322,422,522,622,722,822,922: Image side surface;

[0062] 130, 230, 330, 430, 530, 630, 730, 830, 930: Third lens;

[0063] 131,231,331,431,531,631,731,831,931: Object side surface;

[0064] 132,232,332,432,532,632,732,832,932: Image side surface;

[0065] 140, 240, 340, 440, 540, 640, 740, 840, 940: Fourth lens;

[0066] 141,241,341,441,541,641,741,841,941: Object side surface;

[0067] 142,242,342,442,542,642,742,842,942: Image side surface;

[0068] 150, 250, 350, 450, 550, 650, 750, 850, 950: Fifth lens;

[0069] 151,251,351,451,551,651,751,851,951: Object side surface;

[0070] 152,252,352,452,552,652,752,852,952: Image side surface;

[0071] 160, 260, 360, 460, 560, 660, 760, 860, 960: Sixth lens;

[0072] 161,261,361,461,561,661,761,861,961: Object side surface;

[0073] 162,262,362,462,562,662,762,862,962: Image side surface;

[0074] 170, 270, 370, 470, 570, 670, 770, 870, 970: Focusing components;

[0075] 171: Piezoelectric thin film;

[0076] 172: Liquid layer;

[0077] 173:Substrate;

[0078] 180, 280, 380, 480, 580, 680, 780, 880, 980: Infrared bandpass filters;

[0079] 190, 290, 390, 490, 590, 690, 790, 890, 990: Image sensor;

[0080] 191,291,391,491,591,691,791,891,991: Imaging planes;

[0081] 192,292,392,492,592,692,792,892,992,OA: Optical axis;

[0082] 10: Camera module;

[0083] 11: Imaging lens group;

[0084] 12: Processing image sensors;

[0085] 13: Imaging plane;

[0086] 14: Focusing assembly;

[0087] 20: Control processing module;

[0088] 1: Electronic devices;

[0089] CA1, CA2: Maximum effective radius;

[0090] CRA: included angle;

[0091] CT1, CT2, CT4: Thickness;

[0092] IMH: Maximum imaging height;

[0093] L_chief: Main ray;

[0094] TL,TR3R12,T45,ETR2R3,Tair: Distance. Detailed Implementation

[0095] <First Embodiment>

[0096] The imaging lens assembly provided in the first embodiment of the present invention comprises, in sequence from the object side to the image side: a first lens with negative refractive power, a focusing assembly, a second lens with positive refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power, a fifth lens with negative refractive power, and a sixth lens with negative refractive power.

[0097] In this imaging lens group, such as Figure 10As shown, the distance from the object-side surface (111) of the first lens (110) to an imaging plane (191) on the optical axis (192) is TL, the maximum effective radius of the object-side surface (111) of the first lens (110) is CA1, the maximum effective radius of the image-side surface (112) of the first lens (110) is CA2, half of the maximum field of view of the imaging lens group is HFOV, the maximum imaging height of the imaging lens group is IMH, and the position of the maximum effective radius on the image-side surface (112) of the first lens (110) to the second lens... The displacement of the maximum effective radius position on the object-side surface (121) of the second lens (120) parallel to the optical axis (192) is ETR2R3. The distance between the object-side surface (121) of the second lens (120) and the image-side surface (162) of the sixth lens (160) on the optical axis (192) is TR3R12. The radius of curvature of the object-side surface of the first lens is R1, the radius of curvature of the image-side surface of the first lens is R2, the radius of curvature of the image-side surface of the second lens is R4, and the radius of curvature of the object-side surface of the fourth lens is R7. The radius of curvature of the object-side surface of the fifth lens is R9, and the radius of curvature of the image-side surface of the fifth lens is R10. The thickness of the first lens (110) on the optical axis (192) is CT1, the thickness of the second lens (120) on the optical axis (192) is CT2, and the thickness of the fourth lens (140) on the optical axis (192) is CT4. The focal length of the first lens (110) is f1, the focal length of the second lens (120) is f2, the focal length of the fifth lens (150) is f5, and the focal length of the sixth lens (160) is f6. Focusing. The distance between component (170) and the first lens (110) on the optical axis (192) is Tair, the distance between the fourth lens (140) and the fifth lens (150) on the optical axis (192) is T45, the dispersion coefficient of the first lens (110) is vd1, the dispersion coefficient of the sixth lens (160) is vd6, the angle of the principal ray L_chief incident on the imaging plane (191) at the maximum viewing angle of the imaging lens group is CRA, the entrance pupil diameter of the imaging lens group is EPD, and at least one of the following conditions is satisfied:

[0098] 3.7 < (TL / CA1) * tan(HFOV) < 8;

[0099] 4.22 < TL / CA2 < 7.39;

[0100] 1.95 < IMH / ETR2R3 < 3.58;

[0101] 2.97 < TL / CA1 < 5.2;

[0102] -5.87 < R1 / CT4 < 105.22;

[0103] -0.59 < R1 / R2 < 31.3;

[0104] 1.41 < f6 / f1 < 15.39;

[0105] -9.95 < f5 / f2 < -3.17;

[0106] 2.06 < Tair / T45 < 18.39;

[0107] 1.08 < CT2 / CT1 < 5.12;

[0108] -0.18 < R1 / R7 < 21.26;

[0109] 1.15 < R7 / R2 < 5.74;

[0110] 2.2 < vd1 / vd6 < 5.09;

[0111] 2.39 < TR3R12 / CT2 < 5.97;

[0112] 23.93° / mm<CRA / EPD<46.9° / mm;

[0113] -12.32° / mm < CRA / R10 < -2.16° / mm; and

[0114] 0.68 < R9 / R4 < 3.69.

[0115] Alternatively, excluding the focusing assembly, the total number of refractive lenses in this imaging lens group is 6.

[0116] <Second Embodiment>

[0117] Please refer to Figures 1A to 1G and Figure 10 The imaging lens group provided in the second embodiment of the present invention includes, in sequence along the optical axis 192 from the object side to the image side, a first lens 110, a focusing assembly 170, an aperture 100, a second lens 120, a third lens 130, a fourth lens 140, a fifth lens 150, a sixth lens 160, an infrared bandpass filter 180, and an imaging surface 191.

[0118] Excluding the focusing assembly 170, this imaging lens group contains six refractive lenses. Furthermore, this imaging lens group can be used with an image sensor 190, which is mounted on the imaging surface 191.

[0119] The first lens 110 has negative refractive power and is made of plastic. Its object-side surface 111 is concave near the optical axis, and its image-side surface 112 is concave near the optical axis. Both the object-side surface 111 and the image-side surface 112 of the first lens 110 are aspherical.

[0120] The second lens 120 has positive refractive power and is made of plastic. Its object-side surface 121 is convex near the optical axis, and its image-side surface 122 is convex near the optical axis. Both the object-side surface 121 and the image-side surface 122 of the second lens 120 are aspherical.

[0121] The third lens 130 has negative refractive power and is made of plastic. Its object-side surface 131 is convex near the optical axis, and its image-side surface 132 is concave near the optical axis. Both the object-side surface 131 and the image-side surface 132 of the third lens 130 are aspherical.

[0122] The fourth lens 140 has positive refractive power and is made of plastic. Its object-side surface 141 is convex near the optical axis, and its image-side surface 142 is convex near the optical axis. Both the object-side surface 141 and the image-side surface 142 of the fourth lens 140 are aspherical.

[0123] The fifth lens 150 has negative refractive power and is made of plastic. Its object-side surface 151 is concave near the optical axis, and its image-side surface 152 is convex near the optical axis. Both the object-side surface 151 and the image-side surface 152 of the fifth lens 150 are aspherical.

[0124] The sixth lens 160 has negative refractive power and is made of plastic. Its object-side surface 161 is convex near the optical axis, and its image-side surface 162 is concave near the optical axis. Both the object-side surface 161 and the image-side surface 162 of the sixth lens 160 are aspherical.

[0125] The focusing assembly 170 includes, from the object side to the image side, a piezoelectric thin film 171, a liquid layer 172 (polymer), and a substrate 173. The liquid layer 172 is located between the piezoelectric thin film 171 and the substrate 173. Specifically, the object-side surface of the piezoelectric thin film 171 faces the image-side surface 112 of the first lens 110. The object-side surface of the liquid layer 172 is connected to the image-side surface of the piezoelectric thin film 171. The object-side surface of the substrate 173 is connected to the image-side surface of the liquid layer 172. The image-side surface of the substrate 173 faces the object-side surface 121 of the second lens 120.

[0126] The infrared bandpass filter 180 is made of glass and is located between the sixth lens 160 and the imaging plane 191. It does not affect the system focal length of the imaging lens group, that is, it has no refractive power.

[0127] The equations for the aspherical surfaces of the above lenses are expressed as follows:

[0128]

[0129] Where z is the position value along the optical axis 192 at a height of h with the surface vertex as a reference; c is the curvature of the lens surface near the optical axis 192, and is the reciprocal of the radius of curvature (R) (c = 1 / R), R is the radius of curvature of the lens surface near the optical axis 192, h is the vertical distance of the lens surface from the optical axis 192, k is the conic constant, and Ai is the i-th order aspherical constant.

[0130] Please refer to Tables 1 to 4. Table 1 contains detailed optical data for each component in the optical lens group of the second embodiment. Table 2 contains the aspherical coefficients of the components in the optical lens group of the second embodiment. Table 3 contains the remaining parameters and their values ​​for the optical lens group of the second embodiment. The values ​​of the parameters in Tables 1 and 3 satisfy the conditional expression in Table 4. In the tables, the focal length of the optical lens group is f, the aperture value (f-number) of the imaging lens group is Fno, and the maximum angle of view of the imaging lens group is FOV. The definitions of the remaining parameters can be referred to the definitions in the first embodiment and will not be repeated here.

[0131]

[0132]

[0133]

[0134] In Table 1, the units for radius of curvature, thickness, gap, and focal length are mm. Surfaces 0-20 sequentially represent the surfaces through which light passes from the object side to the image side. Surface 0 represents the gap between the object and the object-side surface 111 of the first lens 110 on the optical axis 192; surfaces 1, 3, 4, 5, 8, 10, 12, 14, 16, and 18 represent the thicknesses of the first lens 110, piezoelectric film 171, liquid layer 172, substrate 173, second lens 120, third lens 130, fourth lens 140, fifth lens 150, sixth lens 160, and infrared bandpass filter 180 on the optical axis 192, respectively; surface 2 represents the gap between the image-side surface 112 of the first lens 110 and the object-side surface 121 of the piezoelectric film 171 on the optical axis 192; surface 6 represents the gap between the image-side surface of the substrate 173 and the aperture 100 on the optical axis 192; surface 7 represents the gap between the aperture 100 and the image-side surface of the substrate 173 on the optical axis 192; and surface 7 represents the gap between the image-side surface of the substrate 173 and the aperture 100 on the optical axis 192. Surface 0 represents the gap between the object-side surface 121 of the second lens 120 and the object-side surface 131 of the third lens 130 on the optical axis 192; surface 11 represents the gap between the image-side surface 132 of the third lens 130 and the object-side surface 141 of the fourth lens 140 on the optical axis 192; surface 13 represents the gap between the image-side surface 142 of the fourth lens 140 and the object-side surface 151 of the fifth lens 150 on the optical axis 192; surface 15 represents the gap between the image-side surface 151 of the fifth lens 150 and the object-side surface 161 of the sixth lens 160 on the optical axis 192; surface 17 represents the gap between the image-side surface 161 of the sixth lens 160 and the infrared bandpass filter 180 on the optical axis 192; and surface 19 represents the gap between the infrared bandpass filter 180 and the imaging surface 191 on the optical axis 192.

[0135] In Table 2, k is the conic coefficient in the equation of the aspheric curve, and A2, A4, A6, A8, A10, A12, A14, A16, A18 and A20 are higher-order aspheric coefficients.

[0136] <Third Embodiment>

[0137] Please refer to Figures 2A to 2G The imaging lens group provided in the third embodiment of the present invention includes, in sequence along the optical axis 292 from the object side to the image side, a first lens 210, a focusing assembly 270, an aperture 200, a second lens 220, a third lens 230, a fourth lens 240, a fifth lens 250, a sixth lens 260, an infrared bandpass filter 280, and an imaging surface 291.

[0138] Excluding the focusing assembly 270, this imaging lens group contains six refractive lenses. This imaging lens group can be used with an image sensor 290, and the configuration of the focusing assembly 270, the infrared bandpass filter 280, and the image sensor 290 is the same as that of the focusing assembly 170, the infrared bandpass filter 180, and the image sensor 190 in the second embodiment, and will not be described again here.

[0139] The first lens 210 has negative refractive power and is made of plastic. Its object-side surface 211 is concave near the optical axis, and its image-side surface 212 is concave near the optical axis. Both the object-side surface 211 and the image-side surface 212 of the first lens 210 are aspherical.

[0140] The second lens 220 has positive refractive power and is made of plastic. Its object-side surface 221 is convex near the optical axis, and its image-side surface 222 is convex near the optical axis. Both the object-side surface 221 and the image-side surface 222 of the second lens 220 are aspherical.

[0141] The third lens 230 has negative refractive power and is made of plastic. Its object-side surface 231 is convex near the optical axis, and its image-side surface 232 is concave near the optical axis. Both the object-side surface 231 and the image-side surface 232 of the third lens 230 are aspherical.

[0142] The fourth lens 240 has positive refractive power and is made of plastic. Its object-side surface 241 is convex near the optical axis, and its image-side surface 242 is convex near the optical axis. Both the object-side surface 241 and the image-side surface 242 of the fourth lens 240 are aspherical.

[0143] The fifth lens 250 has negative refractive power and is made of plastic. Its object-side surface 251 is concave near the optical axis, and its image-side surface 252 is convex near the optical axis. Both the object-side surface 251 and the image-side surface 252 of the fifth lens 250 are aspherical.

[0144] The sixth lens 260 has negative refractive power and is made of plastic. Its object-side surface 261 is convex near the optical axis, and its image-side surface 262 is concave near the optical axis. Both the object-side surface 261 and the image-side surface 262 of the sixth lens 260 are aspherical.

[0145] Please refer to Tables 5 to 8 below. Table 5 contains detailed optical data for each component in the optical lens group of the third embodiment. Table 6 contains the aspherical coefficients of the components in the optical lens group of the third embodiment. Table 7 contains the remaining parameters and their values ​​for the optical lens group of the third embodiment. The values ​​of each parameter in Tables 5 and 7 conform to the conditional equations in Table 8. The curve equation for the aspherical surface in the third embodiment is the same as that in the second embodiment, and the definitions and units of the parameters and surfaces in the tables of the third embodiment are the same as those in the second embodiment, which will not be repeated here.

[0146]

[0147]

[0148]

[0149] <Fourth Embodiment>

[0150] Please refer to Figures 3A to 3G The imaging lens group provided in the fourth embodiment of the present invention includes, in sequence along the optical axis 392 from the object side to the image side, a first lens 310, a focusing assembly 370, an aperture 300, a second lens 320, a third lens 330, a fourth lens 340, a fifth lens 350, a sixth lens 360, an infrared bandpass filter 380, and an imaging surface 391.

[0151] Excluding the focusing assembly 370, this imaging lens group contains six refractive lenses. This imaging lens group can be used with an image sensor 390, and the configuration of the focusing assembly 370, the infrared bandpass filter 380, and the image sensor 390 is the same as that of the focusing assembly 170, the infrared bandpass filter 180, and the image sensor 190 in the second embodiment, and will not be described again here.

[0152] The first lens 310 has negative refractive power and is made of plastic. Its object-side surface 311 is concave near the optical axis, and its image-side surface 312 is concave near the optical axis. Both the object-side surface 311 and the image-side surface 312 of the first lens 310 are aspherical.

[0153] The second lens 320 has positive refractive power and is made of plastic. Its object-side surface 321 is convex near the optical axis, and its image-side surface 322 is convex near the optical axis. Both the object-side surface 321 and the image-side surface 322 of the second lens 320 are aspherical.

[0154] The third lens 330 has negative refractive power and is made of plastic. Its object-side surface 331 is convex near the optical axis, and its image-side surface 332 is concave near the optical axis. Both the object-side surface 331 and the image-side surface 332 of the third lens 330 are aspherical.

[0155] The fourth lens 340 has positive refractive power and is made of plastic. Its object-side surface 341 is convex near the optical axis, and its image-side surface 342 is convex near the optical axis. Both the object-side surface 341 and the image-side surface 342 of the fourth lens 340 are aspherical.

[0156] The fifth lens 350 has negative refractive power and is made of plastic. Its object-side surface 351 is concave near the optical axis, and its image-side surface 352 is convex near the optical axis. Both the object-side surface 351 and the image-side surface 352 of the fifth lens 350 are aspherical.

[0157] The sixth lens 360 has negative refractive power and is made of plastic. Its object-side surface 361 is convex near the optical axis, and its image-side surface 3262 is concave near the optical axis. Both the object-side surface 361 and the image-side surface 362 of the sixth lens 360 are aspherical.

[0158] Please refer to Tables 9 to 12 below. Table 9 contains detailed optical data for each component in the optical lens group of the fourth embodiment. Table 10 contains the aspherical coefficients of the components in the optical lens group of the fourth embodiment. Table 11 contains the remaining parameters and their values ​​for the optical lens group of the fourth embodiment. The values ​​of each parameter in Tables 9 and 11 conform to the conditional equations in Table 12. The curve equation for the aspherical surface in the fourth embodiment is the same as that in the second embodiment. The definitions and units of the parameters and surfaces in the tables of the fourth embodiment are the same as those in the second embodiment, and will not be repeated here.

[0159]

[0160]

[0161]

[0162]

[0163] <Fifth Embodiment>

[0164] Please refer to Figures 4A to 4G The imaging lens group provided in the fifth embodiment of the present invention includes, in sequence along the optical axis 492 from the object side to the image side, a first lens 410, a focusing assembly 470, an aperture 400, a second lens 420, a third lens 430, a fourth lens 440, a fifth lens 450, a sixth lens 460, an infrared bandpass filter 480, and an imaging surface 491.

[0165] Excluding the focusing assembly 470, this imaging lens group contains six refractive lenses. This imaging lens group can be used with an image sensor 490, and the configuration of the focusing assembly 470, the infrared bandpass filter 480, and the image sensor 490 is the same as that of the focusing assembly 170, the infrared bandpass filter 180, and the image sensor 190 in the second embodiment, and will not be described again here.

[0166] The first lens 410 has negative refractive power and is made of plastic. Its object-side surface 411 is concave near the optical axis, and its image-side surface 412 is concave near the optical axis. Both the object-side surface 411 and the image-side surface 412 of the first lens 410 are aspherical.

[0167] The second lens 420 has positive refractive power and is made of plastic. Its object-side surface 421 is convex near the optical axis, and its image-side surface 422 is convex near the optical axis. Both the object-side surface 421 and the image-side surface 422 of the second lens 420 are aspherical.

[0168] The third lens 430 has negative refractive power and is made of plastic. Its object-side surface 431 is convex near the optical axis, and its image-side surface 432 is concave near the optical axis. Both the object-side surface 431 and the image-side surface 432 of the third lens 430 are aspherical.

[0169] The fourth lens 440 has positive refractive power and is made of plastic. Its object-side surface 441 is convex near the optical axis, and its image-side surface 442 is convex near the optical axis. Both the object-side surface 441 and the image-side surface 442 of the fourth lens 440 are aspherical.

[0170] The fifth lens 450 has negative refractive power and is made of plastic. Its object-side surface 451 is concave near the optical axis, and its image-side surface 452 is convex near the optical axis. Both the object-side surface 451 and the image-side surface 452 of the fifth lens 450 are aspherical.

[0171] The sixth lens 460 has negative refractive power and is made of plastic. Its object-side surface 461 is convex near the optical axis, and its image-side surface 462 is concave near the optical axis. Both the object-side surface 461 and the image-side surface 462 of the sixth lens 460 are aspherical.

[0172] Please refer to Tables 13 to 16 below. Table 13 contains detailed optical data for each component in the optical lens group of the fourth embodiment. Table 14 contains the aspherical coefficients of the components in the optical lens group of the fourth embodiment. Table 15 contains the remaining parameters and their values ​​for the optical lens group of the fourth embodiment. The values ​​of each parameter in Tables 13 and 15 conform to the conditional equations in Table 16. The curve equation for the aspherical surface in the fourth embodiment is the same as that in the second embodiment. The definitions and units of the parameters and surfaces in the tables of the fourth embodiment are the same as those in the second embodiment, and will not be repeated here.

[0173]

[0174]

[0175]

[0176]

[0177] <Sixth Embodiment>

[0178] Please refer to Figures 5A to 5G The imaging lens group provided in the sixth embodiment of the present invention includes, in sequence along the optical axis 592 from the object side to the image side, a first lens 510, a focusing assembly 570, an aperture 500, a second lens 520, a third lens 530, a fourth lens 540, a fifth lens 550, a sixth lens 560, an infrared bandpass filter 580, and an imaging surface 591.

[0179] Excluding the focusing assembly 570, this imaging lens group contains six refractive lenses. This imaging lens group can be used with an image sensor 590, and the configuration of the focusing assembly 570, the infrared bandpass filter 580, and the image sensor 590 is the same as that of the focusing assembly 170, the infrared bandpass filter 180, and the image sensor 190 in the second embodiment, and will not be described again here.

[0180] The first lens 510 has negative refractive power and is made of glass. Its object-side surface 511 is convex near the optical axis, and its image-side surface 512 is concave near the optical axis. Both the object-side surface 511 and the image-side surface 512 of the first lens 510 are spherical.

[0181] The second lens 520 has positive refractive power and is made of plastic. Its object-side surface 521 is convex near the optical axis, and its image-side surface 522 is convex near the optical axis. Both the object-side surface 521 and the image-side surface 522 of the second lens 520 are aspherical.

[0182] The third lens 530 has negative refractive power and is made of plastic. Its object-side surface 531 is convex near the optical axis, and its image-side surface 532 is concave near the optical axis. Both the object-side surface 531 and the image-side surface 532 of the third lens 530 are aspherical.

[0183] The fourth lens 540 has positive refractive power and is made of plastic. Its object-side surface 541 is convex near the optical axis, and its image-side surface 542 is convex near the optical axis. Both the object-side surface 541 and the image-side surface 542 of the fourth lens 540 are aspherical.

[0184] The fifth lens 550 has negative refractive power and is made of plastic. Its object-side surface 551 is concave near the optical axis, and its image-side surface 552 is convex near the optical axis. Both the object-side surface 551 and the image-side surface 552 of the fifth lens 550 are aspherical.

[0185] The sixth lens 560 has negative refractive power and is made of plastic. Its object-side surface 561 is convex near the optical axis, and its image-side surface 562 is concave near the optical axis. Both the object-side surface 561 and the image-side surface 562 of the sixth lens 560 are aspherical.

[0186] Please refer to Tables 17 to 20 below. Table 17 contains detailed optical data for each component in the optical lens group of the sixth embodiment. Table 18 contains the aspherical coefficients of the components in the optical lens group of the sixth embodiment. Table 19 contains the remaining parameters and their values ​​for the optical lens group of the sixth embodiment. The values ​​of each parameter in Tables 17 and 19 conform to the conditional equations in Table 20. The curve equation for the aspherical surface in the sixth embodiment is the same as that in the second embodiment. The definitions and units of the parameters and surfaces in the tables of the sixth embodiment are the same as those in the second embodiment, and will not be repeated here.

[0187]

[0188]

[0189]

[0190] <Seventh Embodiment>

[0191] Please refer to Figures 6A to 6G The imaging lens group provided in the seventh embodiment of the present invention includes, in sequence along the optical axis 692 from the object side to the image side, a first lens 610, a focusing assembly 670, an aperture 600, a second lens 620, a third lens 630, a fourth lens 640, a fifth lens 650, a sixth lens 660, an infrared bandpass filter 680, and an imaging surface 691.

[0192] Excluding the focusing assembly 670, this imaging lens group contains six refractive lenses. This imaging lens group can be used with an image sensor 690, and the configuration of the focusing assembly 670, the infrared bandpass filter 680, and the image sensor 690 is the same as that of the focusing assembly 170, the infrared bandpass filter 180, and the image sensor 190 in the second embodiment, and will not be described again here.

[0193] The first lens 610 has negative refractive power and is made of glass. Its object-side surface 611 is convex near the optical axis, and its image-side surface 612 is concave near the optical axis. Both the object-side surface 611 and the image-side surface 612 of the first lens 610 are spherical.

[0194] The second lens 620 has positive refractive power and is made of plastic. Its object-side surface 621 is convex near the optical axis, and its image-side surface 622 is convex near the optical axis. Both the object-side surface 621 and the image-side surface 622 of the second lens 620 are aspherical.

[0195] The third lens 630 has negative refractive power and is made of plastic. Its object-side surface 631 is convex near the optical axis, and its image-side surface 632 is concave near the optical axis. Both the object-side surface 631 and the image-side surface 632 of the third lens 630 are aspherical.

[0196] The fourth lens 640 has positive refractive power and is made of plastic. Its object-side surface 641 is convex near the optical axis, and its image-side surface 642 is convex near the optical axis. Both the object-side surface 641 and the image-side surface 642 of the fourth lens 640 are aspherical.

[0197] The fifth lens 650 has negative refractive power and is made of plastic. Its object-side surface 651 is concave near the optical axis, and its image-side surface 652 is convex near the optical axis. Both the object-side surface 651 and the image-side surface 652 of the fifth lens 650 are aspherical.

[0198] The sixth lens 660 has negative refractive power and is made of plastic. Its object-side surface 661 is convex near the optical axis, and its image-side surface 662 is concave near the optical axis. Both the object-side surface 661 and the image-side surface 662 of the sixth lens 660 are aspherical.

[0199] Please refer to Tables 21 to 24 below. Table 21 contains detailed optical data for each component in the optical lens group of the seventh embodiment. Table 22 contains the aspherical coefficients of the components in the optical lens group of the seventh embodiment. Table 23 contains the remaining parameters and their values ​​for the optical lens group of the seventh embodiment. The values ​​of each parameter in Tables 21 and 23 conform to the conditional equations in Table 24. The curve equation for the aspherical surface in the seventh embodiment is the same as that in the second embodiment. The definitions and units of the parameters and surfaces in the tables of the seventh embodiment are the same as those in the second embodiment, and will not be repeated here.

[0200]

[0201]

[0202]

[0203]

[0204] <Eighth Embodiment>

[0205] Please refer to Figures 7A to 7G The imaging lens group provided in the eighth embodiment of the present invention includes, in sequence along the optical axis 792 from the object side to the image side, a first lens 710, a focusing assembly 770, an aperture 700, a second lens 720, a third lens 730, a fourth lens 740, a fifth lens 750, a sixth lens 760, an infrared bandpass filter 780, and an imaging surface 791.

[0206] Excluding the focusing assembly 770, this imaging lens group contains six refractive lenses. This imaging lens group can be used with an image sensor 790, and the configuration of the focusing assembly 770, the infrared bandpass filter 780, and the image sensor 790 is the same as that of the focusing assembly 170, the infrared bandpass filter 180, and the image sensor 190 in the second embodiment, and will not be described again here.

[0207] The first lens 710 has negative refractive power and is made of glass. Its object-side surface 711 is convex near the optical axis, and its image-side surface 712 is concave near the optical axis. Both the object-side surface 711 and the image-side surface 712 of the first lens 710 are spherical.

[0208] The second lens 720 has positive refractive power and is made of plastic. Its object-side surface 721 is convex near the optical axis, and its image-side surface 722 is convex near the optical axis. Both the object-side surface 721 and the image-side surface 722 of the second lens 720 are aspherical.

[0209] The third lens 730 has negative refractive power and is made of plastic. Its object-side surface 731 is convex near the optical axis, and its image-side surface 732 is concave near the optical axis. Both the object-side surface 731 and the image-side surface 732 of the third lens 730 are aspherical.

[0210] The fourth lens 740 has positive refractive power and is made of plastic. Its object-side surface 741 is convex near the optical axis, and its image-side surface 742 is convex near the optical axis. Both the object-side surface 741 and the image-side surface 742 of the fourth lens 740 are aspherical.

[0211] The fifth lens 750 has negative refractive power and is made of plastic. Its object-side surface 751 is concave near the optical axis, and its image-side surface 752 is convex near the optical axis. Both the object-side surface 751 and the image-side surface 752 of the fifth lens 750 are aspherical.

[0212] The sixth lens 760 has negative refractive power and is made of plastic. Its object-side surface 761 is convex near the optical axis, and its image-side surface 762 is concave near the optical axis. Both the object-side surface 761 and the image-side surface 762 of the sixth lens 760 are aspherical.

[0213] Please refer to Tables 25 to 28 below. Table 25 contains detailed optical data for each component in the optical lens group of the eighth embodiment. Table 26 contains the aspherical coefficients of the components in the optical lens group of the eighth embodiment. Table 27 contains the remaining parameters and their values ​​for the optical lens group of the eighth embodiment. The values ​​of each parameter in Tables 25 and 27 conform to the conditional equations in Table 28. The curve equation for the aspherical surface in the eighth embodiment is the same as that in the second embodiment. The definitions and units of the parameters and surfaces in the tables of the eighth embodiment are the same as those in the second embodiment, and will not be repeated here.

[0214]

[0215]

[0216]

[0217]

[0218] <Ninth Embodiment>

[0219] Please refer to Figures 8A to 8G The imaging lens group provided in the ninth embodiment of the present invention includes, in sequence along the optical axis 892 from the object side to the image side, a first lens 810, a focusing assembly 870, an aperture 800, a second lens 820, a third lens 830, a fourth lens 840, a fifth lens 850, a sixth lens 860, an infrared bandpass filter 880, and an imaging surface 891.

[0220] Excluding the focusing assembly 870, this imaging lens group contains six refractive lenses. This imaging lens group can be used with an image sensor 890, and the configuration of the focusing assembly 870, the infrared bandpass filter 880, and the image sensor 890 is the same as that of the focusing assembly 170, the infrared bandpass filter 180, and the image sensor 190 in the second embodiment, and will not be described again here.

[0221] The first lens 810 has negative refractive power and is made of glass. Its object-side surface 811 is convex near the optical axis, and its image-side surface 812 is concave near the optical axis. Both the object-side surface 811 and the image-side surface 812 of the first lens 810 are spherical.

[0222] The second lens 820 has positive refractive power and is made of plastic. Its object-side surface 821 is convex near the optical axis, and its image-side surface 822 is convex near the optical axis. Both the object-side surface 821 and the image-side surface 822 of the second lens 820 are aspherical.

[0223] The third lens 830 has negative refractive power and is made of plastic. Its object-side surface 831 is convex near the optical axis, and its image-side surface 832 is concave near the optical axis. Both the object-side surface 831 and the image-side surface 832 of the third lens 830 are aspherical.

[0224] The fourth lens 840 has positive refractive power and is made of plastic. Its object-side surface 841 is convex near the optical axis, and its image-side surface 842 is convex near the optical axis. Both the object-side surface 841 and the image-side surface 842 of the fourth lens 840 are aspherical.

[0225] The fifth lens 850 has negative refractive power and is made of plastic. Its object-side surface 851 is concave near the optical axis, and its image-side surface 852 is convex near the optical axis. Both the object-side surface 851 and the image-side surface 852 of the fifth lens 850 are aspherical.

[0226] The sixth lens 860 has negative refractive power and is made of plastic. Its object-side surface 861 is convex near the optical axis, and its image-side surface 862 is concave near the optical axis. Both the object-side surface 861 and the image-side surface 862 of the sixth lens 860 are aspherical.

[0227] Please refer to Tables 29 to 32 below. Table 29 contains detailed optical data for each component in the optical lens group of the ninth embodiment. Table 30 contains the aspherical coefficients of the components in the optical lens group of the ninth embodiment. Table 31 contains the remaining parameters and their values ​​for the optical lens group of the ninth embodiment. The values ​​of each parameter in Tables 29 and 31 conform to the conditional equations in Table 32. The curve equation for the aspherical surface in the ninth embodiment is the same as that in the second embodiment. The definitions and units of the parameters and surfaces in the tables of the ninth embodiment are the same as those in the second embodiment, and will not be repeated here.

[0228]

[0229]

[0230]

[0231] <Tenth Embodiment>

[0232] Please refer to Figures 9A to 9G The imaging lens group provided in the tenth embodiment of the present invention includes, in sequence along the optical axis 992 from the object side to the image side, a first lens 910, a focusing assembly 970, an aperture 900, a second lens 920, a third lens 930, a fourth lens 940, a fifth lens 950, a sixth lens 960, an infrared bandpass filter 980, and an imaging surface 991.

[0233] Excluding the focusing assembly 970, this imaging lens group contains six refractive lenses. This imaging lens group can be used with an image sensor 990, and the configuration of the focusing assembly 970, the infrared bandpass filter 980, and the image sensor 990 is the same as that of the focusing assembly 170, the infrared bandpass filter 180, and the image sensor 190 in the second embodiment, and will not be described again here.

[0234] The first lens 910 has negative refractive power and is made of glass. Its object-side surface 911 is convex near the optical axis, and its image-side surface 912 is concave near the optical axis. Both the object-side surface 911 and the image-side surface 912 of the first lens 910 are spherical.

[0235] The second lens 920 has positive refractive power and is made of plastic. Its object-side surface 921 is convex near the optical axis, and its image-side surface 922 is convex near the optical axis. Both the object-side surface 921 and the image-side surface 922 of the second lens 920 are aspherical.

[0236] The third lens 930 has negative refractive power and is made of plastic. Its object-side surface 931 is convex near the optical axis, and its image-side surface 932 is concave near the optical axis. Both the object-side surface 931 and the image-side surface 932 of the third lens 930 are aspherical.

[0237] The fourth lens 940 has positive refractive power and is made of plastic. Its object-side surface 941 is convex near the optical axis, and its image-side surface 942 is convex near the optical axis. Both the object-side surface 941 and the image-side surface 942 of the fourth lens 940 are aspherical.

[0238] The fifth lens 950 has negative refractive power and is made of plastic. Its object-side surface 951 is concave near the optical axis, and its image-side surface 952 is convex near the optical axis. Both the object-side surface 951 and the image-side surface 952 of the fifth lens 950 are aspherical.

[0239] The sixth lens 960 has negative refractive power and is made of plastic. Its object-side surface 961 is convex near the optical axis, and its image-side surface 962 is concave near the optical axis. Both the object-side surface 961 and the image-side surface 962 of the sixth lens 960 are aspherical.

[0240] Please refer to Tables 33 to 36 below. Table 33 contains detailed optical data for each component in the optical lens group of the tenth embodiment. Table 34 contains the aspherical coefficients of the components in the optical lens group of the tenth embodiment. Table 35 contains the remaining parameters and their values ​​for the optical lens group of the tenth embodiment. The values ​​of each parameter in Tables 33 and 35 conform to the conditional equations in Table 36. The curve equation for the aspherical surface in the tenth embodiment is the same as that in the second embodiment. The definitions and units of the parameters and surfaces in the tables of the tenth embodiment are the same as those in the second embodiment, and will not be repeated here.

[0241]

[0242]

[0243]

[0244]

[0245] <Camera Module>

[0246] Please refer to Figure 11 As shown, the present invention also provides a camera module 10 according to an embodiment, which includes an imaging lens group 11, an image sensor 12 and a lens barrel (not shown).

[0247] The imaging lens group 11 can be any of the imaging lens groups in the first to tenth embodiments described above, and the first lens, focusing assembly, aperture, second lens, third lens, fourth lens, fifth lens, and sixth lens in the imaging lens group 11 can be disposed in the lens barrel. The optical axis of the imaging lens group 11 coincides with the optical axis OA of the camera module 10.

[0248] The image sensor 12 can be any of the image sensors in the second to tenth embodiments described above, such as, but not limited to, electronic photosensitive elements with good brightness and low noise (such as CMOS, CCD, etc.), to truly present the imaging quality of the imaging lens group 11. The image sensor 12 can be disposed on the imaging surface 13 of the imaging lens group 11.

[0249] <Electronic Devices>

[0250] Please refer to Figure 12 As shown, the present invention also provides an electronic device 1 according to one embodiment, which includes the above-described camera module 10, a control processing module 20, and a housing (not shown). Both the camera module 10 and the control processing module 20 are disposed within the housing.

[0251] The control processing module 20 is electrically connected to the focusing assembly 14 of the imaging lens group 11 of the camera module 10 to control the variable focal length of the focusing assembly 14. Furthermore, the control processing module 20 is electrically connected to the image sensor 12 of the camera module 10 to control the operation of the image sensor 12 and to receive and process the sensing signals generated by the image sensor 12.

[0252] The types of electronic devices 1 include, but are not limited to, wearable displays, game consoles, monitor camera lenses, digital cameras, smartphones, tablet computers, webcams, laptops, automotive cameras, etc.

[0253] In the imaging lens group provided by the present invention, the lens material can be plastic or glass; when the lens material is plastic, the production cost can be effectively reduced; while when the lens material is glass, the degree of freedom in the refractive power configuration of the imaging lens group can be increased.

[0254] In the imaging lens group provided by the present invention, the aspherical lens surface in the imaging lens group can be made into a shape other than a sphere to obtain more control variables and to reduce aberrations, thereby reducing the number of lenses used, thus effectively reducing the total length of the imaging lens group.

[0255] In the imaging lens group provided by the present invention, if the lens surface of each lens with refractive power is convex and its convex position is not defined, it means that the lens surface is convex near the optical axis; if it is concave and its concave position is not defined, it means that the lens surface is concave near the optical axis.

[0256] In the imaging lens group provided by the present invention, the maximum effective radius of any surface of a lens is usually the vertical distance between the intersection point of the light rays projected onto the surface through the outermost edge of the entrance pupil at the maximum viewing angle of the optical lens group and the optical axis, or the radius of the untreated part of the surface (in the case that the surface has a concave-convex structure or is coated with ink, etc.), or the radius of the part of the lens through which light can pass (in the case that the lens has a light-blocking plate or spacer ring, etc., that can block the light from passing through), but is not limited thereto.

[0257] While the present invention has been disclosed above with reference to the foregoing embodiments, these embodiments are not intended to limit the invention. Modifications, refinements, and combinations of embodiments made without departing from the spirit and scope of the invention are all within the scope of patent protection of the present invention. For the scope of protection defined by the present invention, please refer to the appended claims.

Claims

1. An imaging lens assembly, characterized in that, From the object side to the image side, the following are included in sequence: The first lens has negative refractive power; Focusing components; The second lens has positive refractive power; The third lens has negative refractive power; The fourth lens has positive refractive power; The fifth lens has negative refractive power; and The sixth lens has negative refractive power; Wherein, the distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, the maximum effective radius of the object-side surface of the first lens is CA1, half of the maximum field of view of the imaging lens group is HFOV, and the following condition is satisfied: 3.7<(TL / CA1)*tan(HFOV)<8.

2. The imaging lens assembly according to claim 1, characterized in that, The maximum effective radius of the image-side surface of the first lens is CA2, and satisfies the following condition: 4.22 < TL / CA2 < 7.

39.

3. The imaging lens assembly according to claim 1, characterized in that, The maximum imaging height of the imaging lens group is IMH. The displacement parallel to the optical axis from the position of the maximum effective radius on the image side surface of the first lens to the position of the maximum effective radius on the object side surface of the second lens is ETR2R3, and satisfies the following condition: 1.95<IMH / ETR2R3<3.

58.

4. The imaging lens assembly according to claim 1, characterized in that, The distance TL from the object-side surface of the first lens to the imaging surface on the optical axis and the maximum effective radius CA1 of the object-side surface of the first lens also satisfy the following condition: 2.97 < TL / CA1 < 5.

2.

5. The imaging lens assembly according to claim 1, characterized in that, The first lens has a radius of curvature of R1 on its object-side surface, and the fourth lens has a thickness of CT4 on its optical axis, satisfying the following condition: -5.87 < R1 / CT4 < 105.

22.

6. The imaging lens assembly according to claim 1, characterized in that, The object-side surface of the first lens has a radius of curvature of R1, and the image-side surface of the first lens has a radius of curvature of R2, satisfying the following condition: -0.59 < R1 / R2 < 31.

3.

7. The imaging lens assembly according to claim 1, characterized in that, The first lens has a focal length of f1, the sixth lens has a focal length of f6, and satisfies the following condition: 1.41 < f6 / f1 < 15.

39.

8. The imaging lens assembly according to claim 1, characterized in that, The second lens has a focal length of f2, and the fifth lens has a focal length of f5, satisfying the following condition: -9.95 < f5 / f2 < -3.

17.

9. The imaging lens assembly according to claim 1, characterized in that, The distance between the focusing assembly and the first lens on the optical axis is Tair, and the distance between the fourth lens and the fifth lens on the optical axis is T45, satisfying the following condition: 2.06 < Tair / T45 < 18.

39.

10. The imaging lens assembly according to claim 1, characterized in that, The thickness of the first lens on the optical axis is CT1, and the thickness of the second lens on the optical axis is CT2, satisfying the following condition: 1.08 < CT2 / CT1 < 5.

12.

11. The imaging lens assembly according to claim 1, characterized in that, The object-side surface of the first lens has a radius of curvature of R1, and the object-side surface of the fourth lens has a radius of curvature of R7, satisfying the following condition: -0.18 < R1 / R7 < 21.

26.

12. The imaging lens assembly according to claim 1, characterized in that, The first lens has an image-side surface radius of curvature of R2, and the fourth lens has an object-side surface radius of curvature of R7, satisfying the following condition: 1.15 < R7 / R2 < 5.

74.

13. The imaging lens assembly according to claim 1, characterized in that, The dispersion coefficient of the first lens is vd1, and the dispersion coefficient of the sixth lens is vd6, satisfying the following condition: 2.2 < vd1 / vd6 < 5.

09.

14. The imaging lens assembly according to claim 1, characterized in that, The distance between the object-side surface of the second lens and the image-side surface of the sixth lens on the optical axis is TR3R12, and the thickness of the second lens on the optical axis is CT2, satisfying the following condition: 2.39<TR3R12 / CT2<5.

97.

15. The imaging lens assembly according to claim 1, characterized in that, The angle at which the principal ray incident on the imaging surface at the maximum viewing angle of the imaging lens group is CRA, and the entrance pupil diameter of the imaging lens group is EPD, and the following condition is satisfied: 23.93° / mm<CRA / EPD<46.9° / mm.

16. The imaging lens assembly according to claim 1, characterized in that, The angle at which the principal ray at the maximum viewing angle of the imaging lens group is incident on the imaging surface is CRA, and the radius of curvature of the image-side surface of the fifth lens is R10, satisfying the following condition: -12.32° / mm<CRA / R10<-2.16° / mm.

17. The imaging lens assembly according to claim 1, characterized in that, The second lens has an image-side surface radius of curvature of R4, and the fifth lens has an object-side surface radius of curvature of R9, satisfying the following condition: 0.68 < R9 / R4 < 3.

69.

18. The imaging lens assembly according to claim 1, characterized in that, Excluding the focusing assembly, the total number of lenses with refractive power in the imaging lens group is 6.

19. A camera module, characterized in that, Include: The imaging lens group as described in claim 1; and An image sensor is disposed on the imaging surface of the imaging lens group.

20. An electronic device, characterized in that, Include: The imaging lens group as described in claim 1; An image sensor is disposed on the imaging surface of the imaging lens group; and The control processing module is electrically connected to the focusing assembly and the image sensor.

Images