Imaging lens group and camera module

Abstract

The present invention provides an imaging lens group and an imaging module. The imaging lens group sequentially includes, from the object side to the image side: a first lens; an aperture; a second lens; a third lens; a fourth lens; a fifth lens; and a sixth lens. Half of the maximum viewing angle of the imaging lens group is HFOV, the aperture value of the imaging lens group is Fno, the distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, the maximum imaging height of the imaging lens group is IMH, the overall focal length of the imaging lens group is f, the focal length of the first lens is f1, and the following conditions are satisfied: 0.73 < HFOV / (IMH * Fno * TL) < 1.67, and -0.58 < f / f1 < -0.30.

Description

Technical Field

[0001] The present invention relates to an imaging lens assembly and a camera module, and more particularly to an imaging lens assembly and a camera module applied to an electronic device. Background Art

[0002] Advances in semiconductor manufacturing technology have enabled miniaturized optical lenses to enter the high-resolution realm. Ultra-wide-angle lenses are now used in a variety of fields, such as photography, surveillance, and automotive surround-view systems. The resolution requirements for wide-angle lenses in mobile phones are particularly high, making high-resolution ultra-wide-angle lenses a key research direction.

[0003] Existing ultra-wide-angle lenses used in portable electronic devices such as mobile phones, tablets, and other wearable electronic devices mostly have a resolution of 10M to 20M. Ultra-wide-angle lenses with a resolution of 50M or higher are rare on the market. Large apertures are prone to sensitivity issues during manufacturing and assembly, making mass production difficult and increasing costs. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems of high resolution and wide angle in the above-mentioned prior art. To achieve the above-mentioned purpose, the present invention provides an imaging lens group, which comprises, from the object side to the image side, a first lens having negative refractive power, the object side surface of the first lens being concave near the optical axis, and the image side surface of the first lens being concave near the optical axis; an aperture; a second lens having positive refractive power, the object side surface of the second lens being convex near the optical axis, and the image side surface of the second lens being convex near the optical axis; a third lens having negative refractive power. refractive power, the object-side surface of the third lens is convex near the optical axis, and the image-side surface of the third lens is concave near the optical axis; a fourth lens having positive refractive power, the object-side surface of the fourth lens is convex near the optical axis, and the image-side surface of the fourth lens is concave near the optical axis; a fifth lens having positive refractive power, the image-side surface of the fifth lens is convex near the optical axis; and a sixth lens having negative refractive power, the object-side surface of the sixth lens is convex near the optical axis, and the image-side surface of the sixth lens is concave near the optical axis.

[0005] Among them, half of the maximum viewing angle of the imaging lens group is HFOV, the f-number of the imaging lens group is Fno, the distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, the maximum imaging height of the imaging lens group is IMH (IMH is usually half of the diagonal length of the effective pixel area of the image sensor, but depending on the usage characteristics of electronic products, it can be less than or greater than half of the diagonal length of the effective pixel area of the image sensor), the overall focal length of the imaging lens group is f, the focal length of the first lens is f1, and the following conditions are satisfied: 0.73 < HFOV / (IMH * Fno * TL) < 1.67, and -0.58 < f / f1 < -0.30.

[0006] When the above imaging lens group satisfies 0.73 < HFOV / (IMH * Fno * TL) < 1.67, through this appropriate configuration, the effects of a large aperture and a high-resolution lens with wide-angle characteristics are achieved. When the above imaging lens group satisfies -0.58 < f / f1 < -0.30, through the appropriate configuration of the focal length of the first lens and the overall focal length, its wide-angle characteristics can be effectively enhanced, a larger viewing angle can be provided, and the illuminance of the imaging lens group can be maintained.

[0007] The total number of refractive lenses in the imaging lens group is six.

[0008] 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, and the following conditions are satisfied: -1.24 < R1 / R2 < -0.31. Through the better lens curvature configuration, the wide-angle characteristics are satisfied and the relative illuminance of the imaging lens group is improved.

[0009] The thickness of the third lens on the optical axis is CT3, the radius of curvature of the object-side surface of the third lens is R5, the radius of curvature of the image-side surface of the third lens is R6, and the following conditions are satisfied: 0.31 < CT3 * (R5 / R6) < 0.76. Through the appropriate configuration of the curvature and thickness of the third lens, chromatic aberration is corrected and the imaging quality is improved.

[0010] The overall focal length of the imaging lens group is f, the focal length of the sixth lens is f6, and the following conditions are satisfied: -1.09 < f / f6 < -0.58. Through the appropriate configuration of the focal length of the sixth lens and the overall focal length, optical distortion can be reduced.

[0011] The focal length of the first lens is f1, the focal length of the third lens is f3, the focal length of the sixth lens is f6, and the following conditions are satisfied: -11.04 < f3 * f6 / f1 < -3.24. Thereby, the refractive power distribution of the imaging lens group is more appropriate, which is beneficial to increasing the resolution ability of the imaging lens group.

[0012] The focal length of the third lens is f3, the focal length of the fourth lens is f4, and the focal length of the fifth lens is f5, and the following conditions are satisfied: -3.68 < f4 / (f3 * f5) < -0.42. By appropriately distributing the refractive power of the imaging lens group, it is beneficial to correct the aberration of the imaging lens group to improve the imaging quality of the imaging lens group.

[0013] The thickness of the third lens on the optical axis is CT3, the thickness of the fourth lens on the optical axis is CT4, the thickness of the fifth lens on the optical axis is CT5, and the thickness of the sixth lens on the optical axis is CT6, and the following conditions are satisfied: 1.50 < (CT4 + CT5) / (CT3 + CT6) < 2.58. Thereby, by appropriately adjusting the thickness distribution of the lenses, the performance of the imaging lens group and the lens formability can be taken into account.

[0014] The thickness of the first lens on the optical axis is CT1, the thickness of the sixth lens on the optical axis is CT6, and the distance from the image side surface of the first lens to the aperture on the optical axis is T1S, and the following conditions are satisfied: 0.54 < (CT1 + CT6) / T1S < 1.10. By appropriately adjusting the thicknesses of the first lens and the sixth lens, the space of the imaging lens group can be optimized.

[0015] The distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, and the maximum imaging height of the imaging lens group is IMH (IMH is usually half of the diagonal length of the effective pixel area of the image sensor, but depending on the usage characteristics of electronic products, it can be less than or greater than half of the diagonal length of the effective pixel area of the image sensor), and the following conditions are satisfied: 1.52 < TL / IMH < 2.34. Thereby, the height and imaging screen ratio of the imaging lens group are more appropriate to achieve the effects of high resolution and miniaturization.

[0016] The distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, the distance from the image side surface of the sixth lens to the imaging surface on the optical axis is BFL, and the overall focal length of the imaging lens group is f, and the following conditions are satisfied: 1.75 < (TL - BFL) / f < 3.27. Thereby, an appropriate lens space and back focal space can be provided.

[0017] The maximum imaging height of the imaging lens group is IMH, the thickness of the first lens on the optical axis is CT1, and the thickness of the third lens on the optical axis is CT3, and the following conditions are satisfied: 3.52 < IMH / (CT1 + CT3) < 6.15. Thereby, high-resolution requirements can be met while taking into account the formability of the lens.

[0018] The thickness of the second lens on the optical axis is CT2, the thickness of the fifth lens on the optical axis is CT5, the focal length of the second lens is f2, the focal length of the fifth lens is f5, and the following conditions are satisfied: 1.76 < (f2 / CT2) - (f5 / CT5) < 3.26. Thereby, the refractive power of the lens and the formability of the lens are balanced.

[0019] The Abbe number of the third lens is vd3, the Abbe number of the fourth lens is vd4, and the following conditions are satisfied: 29.4 < vd4 - vd3 < 45.4. By appropriately arranging the Abbe numbers of the third lens and the fourth lens, the aberration of the imaging lens group can be corrected and the imaging quality of the imaging lens group can be improved.

[0020] The Abbe number of the fifth lens is vd5, the Abbe number of the sixth lens is vd6, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, and the following conditions are satisfied: 24.2 < │vd5 / f5 - vd6 / f6│ < 48.5. By selecting the lens material and appropriately arranging the refractive power, the high-order aberration can be reduced.

[0021] The focal length of the first lens is f1, the focal length of the second lens is f2, and the following conditions are satisfied: -2.37 < f1 / f2 < -1.03. Thereby, the refractive power distribution of the imaging lens group is more appropriate, and the sensitivity of the first lens and the second lens can be reduced.

[0022] The focal length of the third lens is f3, the focal length of the fifth lens is f5, and the following conditions are satisfied: -7.16 < f3 / f5 < -3.71. Thereby, the refractive power distribution of the imaging lens group is more appropriate, which is beneficial to correcting the aberration of the imaging lens group and improving the imaging quality of the imaging lens group.

[0023] In addition, the present invention further provides an imaging module, comprising: a lens barrel; an imaging lens group disposed in the lens barrel; and an image sensor disposed on the imaging surface of the imaging lens group.

[0024] The imaging lens group, in sequence from the object side to the image side, includes: a first lens with negative refractive power, the object-side surface of the first lens is concave near the optical axis, and the image-side surface of the first lens is concave near the optical axis; an aperture; a second lens with positive refractive power, the object-side surface of the second lens is convex near the optical axis, and the image-side surface of the second lens is convex near the optical axis; a third lens with negative refractive power, the object-side surface of the third lens is convex near the optical axis, and the image-side surface of the third lens is concave near the optical axis; a fourth lens with positive refractive power, the object-side surface of the fourth lens is convex near the optical axis, and the image-side surface of the fourth lens is concave near the optical axis; a fifth lens with positive refractive power, the image-side surface of the fifth lens is convex near the optical axis; and a sixth lens with negative refractive power, the object-side surface of the sixth lens is convex near the optical axis, and the image-side surface of the sixth lens is concave near the optical axis.

[0025] Where half of the maximum viewing angle of the imaging lens group is HFOV, the f-number of the imaging lens group is Fno, the distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, the maximum imaging height of the imaging lens group is IMH (IMH is usually half of the diagonal length of the effective pixel region of the image sensor, but depending on the usage characteristics of electronic products, it can be less than or greater than half of the diagonal length of the effective pixel region of the image sensor), the overall focal length of the imaging lens group is f, the focal length of the first lens is f1, and the following conditions are satisfied: 0.73 < HFOV / (IMH * Fno * TL) < 1.67, and -0.58 < f / f1 < -0.30.

[0026] When the above imaging lens group satisfies 0.73 < HFOV / (IMH * Fno * TL) < 1.67, through this appropriate configuration, the effects of a large aperture and a high-resolution lens with wide-angle characteristics are achieved. When the above imaging lens group satisfies -0.58 < f / f1 < -0.30, through the appropriate configuration of the focal length of the first lens and the overall focal length, the wide-angle characteristics can be effectively enhanced, a larger viewing angle can be provided, and the illuminance of the imaging lens group can be maintained.

[0027] The total number of refractive lenses in the imaging lens group is six.

[0028] The radius of curvature of the object-side surface of the first lens is R1, and the radius of curvature of the image-side surface of the first lens is R2, and the following conditions are satisfied: -1.24 < R1 / R2 < -0.31. Through the better lens curvature configuration, the wide-angle characteristics are satisfied and the relative illuminance of the imaging lens group is improved.

[0029] The thickness of the third lens on the optical axis is CT3, the radius of curvature of the object-side surface of the third lens is R5, and the radius of curvature of the image-side surface of the third lens is R6, and the following conditions are satisfied: 0.31 < CT3 * (R5 / R6) < 0.76. By appropriately configuring the curvature and thickness of the third lens, chromatic aberration is corrected and imaging quality is improved.

[0030] The overall focal length of the imaging lens group is f, and the focal length of the sixth lens is f6, and the following conditions are satisfied: -1.09 < f / f6 < -0.58. By appropriately configuring the focal length of the sixth lens and the overall focal length, optical distortion is reduced.

[0031] The focal length of the first lens is f1, the focal length of the third lens is f3, and the focal length of the sixth lens is f6, and the following conditions are satisfied: -11.04 < f3 * f6 / f1 < -3.24. Thereby, the refractive power distribution of the imaging lens group is more appropriate, which is beneficial to increasing the resolution of the imaging lens group.

[0032] The focal length of the third lens is f3, the focal length of the fourth lens is f4, and the focal length of the fifth lens is f5, and the following conditions are satisfied: -3.68 < f4 / (f3 * f5) < -0.42. By appropriately distributing the refractive power of the imaging lens group, it is beneficial to correct the aberration of the imaging lens group to improve the imaging quality of the imaging lens group.

[0033] The thickness of the third lens on the optical axis is CT3, the thickness of the fourth lens on the optical axis is CT4, the thickness of the fifth lens on the optical axis is CT5, and the thickness of the sixth lens on the optical axis is CT6, and the following conditions are satisfied: 1.50 < (CT4 + CT5) / (CT3 + CT6) < 2.58. Thereby, by appropriately adjusting the thickness distribution of the lenses, the performance of the imaging lens group and the lens formability can be taken into account.

[0034] The thickness of the first lens on the optical axis is CT1, the thickness of the sixth lens on the optical axis is CT6, and the distance from the image-side surface of the first lens to the aperture on the optical axis is T1S, and the following conditions are satisfied: 0.54 < (CT1 + CT6) / T1S < 1.10. By appropriately adjusting the thicknesses of the first lens and the sixth lens, the space of the imaging lens group is optimized.

[0035] The distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, and the maximum imaging height of the imaging lens group is IMH, and the following conditions are satisfied: 1.52 < TL / IMH < 2.34. Thereby, the height of the imaging lens group and the imaging picture ratio are more appropriate to achieve the effects of high resolution and miniaturization.

[0036] The distance from the object side surface of the first lens to the imaging plane on the optical axis is TL, the distance from the image side surface of the sixth lens to the imaging plane on the optical axis is BFL, and the overall focal length of the imaging lens group is f, and the following conditions are satisfied: 1.75 < (TL - BFL) / f < 3.27. Thereby, a suitable lens space and back focal space are provided.

[0037] The maximum imaging height of the imaging lens group is IMH (IMH is usually half of the diagonal length of the effective pixel region of the image sensor, but depending on the usage characteristics of electronic products, it can be less than or greater than half of the diagonal length of the effective pixel region of the image sensor). The thickness of the first lens on the optical axis is CT1, and the thickness of the third lens on the optical axis is CT3, and the following conditions are satisfied: 3.52 < IMH / (CT1 + CT3) < 6.15. Thereby, high resolution requirements can be provided while taking into account the formability of the lens.

[0038] The thickness of the second lens on the optical axis is CT2, the thickness of the fifth lens on the optical axis is CT5, the focal length of the second lens is f2, and the focal length of the fifth lens is f5, and the following conditions are satisfied: 1.76 < (f2 / CT2) - (f5 / CT5) < 3.26. Thereby, the refractive power of the lens and the formability of the lens are balanced.

[0039] The Abbe number of the third lens is vd3, and the Abbe number of the fourth lens is vd4, and the following conditions are satisfied: 29.4 < vd4 - vd3 < 45.4. By appropriately configuring the Abbe numbers of the third lens and the fourth lens, the aberration of the imaging lens group can be corrected and the imaging quality of the imaging lens group can be improved.

[0040] The Abbe number of the fifth lens is vd5, the Abbe number of the sixth lens is vd6, the focal length of the fifth lens is f5, and the focal length of the sixth lens is f6, and the following conditions are satisfied: 24.2 < │vd5 / f5 - vd6 / f6│ < 48.5. By appropriately selecting the lens material and configuring the refractive power, the high-order aberration is reduced.

[0041] The focal length of the first lens is f1, and the focal length of the second lens is f2, and the following conditions are satisfied: -2.37 < f1 / f2 < -1.03. Thereby, the refractive power distribution of the imaging lens group is more appropriate, and the sensitivity of the first lens and the second lens can be reduced.

[0042] The focal length of the third lens is f3, and the focal length of the fifth lens is f5, and the following conditions are satisfied: -7.16 < f3 / f5 < -3.71. Thereby, the refractive power distribution of the imaging lens group is more appropriate, which is beneficial to correcting the aberration of the imaging lens group and improving the imaging quality of the imaging lens group.

[0043] The imaging lens assembly and camera module of the present invention can provide an electronic device that is used in applications where a camera module has a shorter length and has a high-resolution and ultra-wide-angle lens. In addition, the imaging lens assembly and camera module of the present invention have a large aperture of 2.2 or 2.0 to provide a larger amount of light input, and its resolution can be greatly improved to 50M. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1A FIG. 4 is a schematic diagram of an imaging lens assembly according to a first embodiment of the present invention.

[0045] Figure 1B From left to right are the field curvature and distortion curves of the imaging lens assembly of the first embodiment.

[0046] Figure 2A FIG. 4 is a schematic diagram of an imaging lens assembly according to a second embodiment of the present invention.

[0047] Figure 2B From left to right are the field curvature and distortion curves of the imaging lens assembly of the second embodiment.

[0048] Figure 3A FIG. 4 is a schematic diagram of an imaging lens assembly according to a third embodiment of the present invention.

[0049] Figure 3B From left to right are the field curvature and distortion curves of the imaging lens assembly of the third embodiment.

[0050] Figure 4A FIG. 4 is a schematic diagram of an imaging lens assembly according to a fourth embodiment of the present invention.

[0051] Figure 4B From left to right are the field curvature and distortion curves of the imaging lens assembly of the fourth embodiment.

[0052] Figure 5A FIG. 4 is a schematic diagram of an imaging lens assembly according to a fifth embodiment of the present invention.

[0053] Figure 5B From left to right are the field curvature and distortion curves of the imaging lens assembly of the fifth embodiment.

[0054] Figure 6A FIG. 4 is a schematic diagram of an imaging lens assembly according to a sixth embodiment of the present invention.

[0055] Figure 6B From left to right are the field curvature and distortion curves of the imaging lens assembly of the sixth embodiment.

[0056] Figure 7 Schematic diagram of a camera module according to a seventh embodiment of the present invention.

[0057] In the picture:

[0058] 110, 210, 310, 410, 510, 610: first lens;

[0059] 111, 211, 311, 411, 511, 611: object side surface;

[0060] 112, 212, 312, 412, 512, 612: image side surface;

[0061] 120, 220, 320, 420, 520, 620: second lens;

[0062] 121, 221, 321, 421, 521, 621: object side surface;

[0063] 122, 222, 322, 422, 522, 622: image side surface;

[0064] 130, 230, 330, 430, 530, 630: third lens;

[0065] 131, 231, 331, 431, 531, 631: object side surface;

[0066] 132, 232, 332, 432, 532, 632: image side surface;

[0067] 140, 240, 340, 440, 540, 640: fourth lens;

[0068] 141, 241, 341, 441, 541, 641: object side surface;

[0069] 142, 242, 342, 442, 542, 642: image side surface;

[0070] 150, 250, 350, 450, 550, 650: fifth lens;

[0071] 151, 251, 351, 451, 551, 651: object side surface;

[0072] 152, 252, 352, 452, 552, 652: image side surface;

[0073] 160, 260, 360, 460, 560, 660: sixth lens;

[0074] 161, 261, 361, 461, 561, 661: object side surface;

[0075] 162, 262, 362, 462, 562, 662: image side surface;

[0076] 180, 280, 380, 480, 580, 680: infrared cut-off filters;

[0077] 190, 290, 390, 490, 590, 690: imaging plane;

[0078] 100, 200, 300, 400, 500, 600: optical axis;

[0079] 1000: lens barrel;

[0080] 2000: Image sensor;

[0081] 3000: imaging lens group;

[0082] STO: aperture

[0083] f: Overall focal length of the imaging lens group

[0084] Fno: aperture value of the imaging lens group

[0085] FOV: the maximum viewing angle of the imaging lens group;

[0086] HFOV: half of the maximum viewing angle of the imaging lens group;

[0087] TL: distance from the object-side surface of the first lens to the imaging plane on the optical axis;

[0088] IMH: maximum imaging height of the imaging lens group;

[0089] f1: focal length of the first lens;

[0090] f2: focal length of the second lens;

[0091] f3: focal length of the third lens;

[0092] f4: focal length of the fourth lens;

[0093] f5: focal length of the fifth lens;

[0094] f6: focal length of the sixth lens;

[0095] R1: the radius of curvature of the object side surface of the first lens;

[0096] R2: radius of curvature of the image-side surface of the first lens;

[0097] R5: radius of curvature of the object-side surface of the third lens;

[0098] R6: radius of curvature of the image-side surface of the third lens;

[0099] CT1: thickness of the first lens on the optical axis;

[0100] CT2: thickness of the second lens on the optical axis;

[0101] CT3: thickness of the third lens on the optical axis;

[0102] CT4: thickness of the fourth lens on the optical axis;

[0103] CT5: thickness of the fifth lens on the optical axis;

[0104] CT6: thickness of the sixth lens element on the optical axis;

[0105] T1S: The distance from the image-side surface of the first lens to the aperture on the optical axis;

[0106] BFL: the distance from the image-side surface of the sixth lens element to the imaging plane on the optical axis;

[0107] vd3: Abbe coefficient of the third lens;

[0108] vd4: Abbe coefficient of the fourth lens;

[0109] vd5: Abbe coefficient of the fifth lens;

[0110] vd6: Abbe coefficient of the sixth lens. DETAILED DESCRIPTION

[0111] In order to enable those with ordinary knowledge in the relevant technical field to understand the contents of the present invention and to implement the contents of the present invention accordingly, the following is an illustration with appropriate embodiments. Equivalent replacements and modifications based on the contents of the present invention are included in the scope of the rights of the present invention. In addition, it is stated that the illustrations attached to the present invention are not depicted according to actual dimensions. Although the present invention provides embodiments of specific parameters, it should be understood that the parameters do not need to be exactly equal to the corresponding values. Within an acceptable error range, they are approximate to their corresponding parameters. The following embodiments will further explain the technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of the rights of the present invention.

[0112] <First embodiment>

[0113] Please refer to Figure 1A and Figure 1B ,in, Figure 1A This is a schematic diagram of an imaging lens assembly according to a first embodiment of the present invention. Figure 1B From left to right are the field curvature and distortion curves of the imaging lens assembly of the first embodiment. Figure 1AAs can be seen, the imaging lens assembly includes, from the object side to the image side, a first lens 110; an aperture STO; a second lens 120; a third lens 130; a fourth lens 140; a fifth lens 150; a sixth lens 160, an infrared cutoff filter 180, and an imaging surface 190. The imaging lens assembly includes six lenses with refractive power, but this is not limited to this.

[0114] The first lens 110 has negative refractive power and is made of plastic. Its object-side surface 111 is concave near the optical axis 100 , and its image-side surface 112 is concave near the optical axis 100 . Both the object-side surface 111 and the image-side surface 112 are aspherical.

[0115] The second lens 120 has positive refractive power and is made of plastic. Its object-side surface 121 is convex near the optical axis 100 , and its image-side surface 122 is convex near the optical axis 100 . Both the object-side surface 121 and the image-side surface 122 are aspherical.

[0116] The third lens 130 has negative refractive power and is made of plastic. Its object-side surface 131 is convex near the optical axis 100 , and its image-side surface 132 is concave near the optical axis 100 . Both the object-side surface 131 and the image-side surface 132 are aspherical.

[0117] The fourth lens 140 has positive refractive power and is made of plastic. Its object-side surface 141 is convex near the optical axis 100 , and its image-side surface 142 is concave near the optical axis 100 . Both the object-side surface 141 and the image-side surface 142 are aspherical.

[0118] The fifth lens 150 has positive refractive power and is made of plastic. Its object-side surface 151 is concave near the optical axis 100 , and its image-side surface 152 is convex near the optical axis 100 . Both the object-side surface 151 and the image-side surface 152 are aspherical.

[0119] The sixth lens 160 has positive refractive power and is made of plastic. Its object-side surface 161 is convex near the optical axis 100 , and its image-side surface 162 is concave near the optical axis 100 . Both the object-side surface 161 and the image-side surface 162 are aspherical.

[0120] The infrared cut filter 180 is made of glass and is disposed between the sixth lens 160 and the imaging surface 190 without affecting the focal length of the imaging lens group. It is understood that the infrared cut filter element can also be formed on the lens surface, and the infrared cut filter element can also be made of other materials.

[0121] The curve equations of the aspheric surfaces of the above lenses are expressed as follows:

[0122]

[0123] Wherein, z is the position value at a height h along the optical axis 100 with reference to the surface vertex; c is the curvature of the lens surface near the optical axis 100 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 100, h is the vertical distance of the lens surface from the optical axis 100, k is the conic constant, and Ai is the i-th order aspheric coefficient.

[0124] In the first embodiment, the overall focal length of the imaging lens group is f, the aperture value (f-number) of the imaging lens group is Fno, and the maximum viewing angle (viewing angle 2ω) in the imaging lens group is FOV, and its values ​​are as follows: f = 2.26 (mm); Fno = 2.24; and FOV = 124.9 (degrees).

[0125] In the imaging lens assembly of the first embodiment, half of the maximum viewing angle of the imaging lens assembly is HFOV, the aperture value of the imaging lens assembly is Fno, the distance from the object-side surface 111 of the first lens 110 to the imaging plane 190 on the optical axis 100 is TL, the maximum imaging height of the imaging lens assembly is IMH, the overall focal length of the imaging lens assembly is f, the focal length of the first lens 110 is f1, and the following conditions are satisfied: HFOV / (IMH*Fno*TL)=1.36, and f / f1=-0.37.

[0126] In the imaging lens assembly of the first embodiment, the object-side surface 111 of the first lens 110 has a curvature radius of R1, and the image-side surface 112 of the first lens 110 has a curvature radius of R2, and the following condition is satisfied: R1 / R2=-0.39.

[0127] In the imaging lens assembly of the first embodiment, the thickness of the third lens 130 on the optical axis 100 is CT3, the curvature radius of the object-side surface 131 of the third lens 130 is R5, and the curvature radius of the image-side surface 132 of the third lens 130 is R6, and the following condition is satisfied: CT3*(R5 / R6)=0.39.

[0128] In the imaging lens assembly of the first embodiment, the overall focal length of the imaging lens assembly is f, the focal length of the sixth lens 160 is f6, and the following condition is satisfied: f / f6=-0.91.

[0129] In the imaging lens assembly of the first embodiment, the focal length of the first lens 110 is f1, the focal length of the third lens 130 is f3, and the focal length of the sixth lens 160 is f6, and the following condition is satisfied: f3*f6 / f1=-4.42.

[0130] In the imaging lens assembly of the first embodiment, the focal length of the third lens 130 is f3, the focal length of the fourth lens 140 is f4, and the focal length of the fifth lens 150 is f5, and the following condition is satisfied: f4 / (f3*f5)=-3.07.

[0131] In the imaging lens assembly of the first embodiment, the thickness of the third lens 130 on the optical axis 100 is CT3, the thickness of the fourth lens 140 on the optical axis 100 is CT4, the thickness of the fifth lens 150 on the optical axis 100 is CT5, and the thickness of the sixth lens 160 on the optical axis 100 is CT6, and the following condition is satisfied: (CT4+CT5) / (CT3+CT6)=2.14.

[0132] In the imaging lens assembly of the first embodiment, the thickness of the first lens 110 on the optical axis 100 is CT1, the thickness of the sixth lens 160 on the optical axis 100 is CT6, and the distance from the image side of the first lens 110 to the aperture on the optical axis 100 is T1S, and the following condition is satisfied: (CT1+CT6) / T1S=0.92.

[0133] In the imaging lens assembly of the first embodiment, the distance between the object-side surface 111 of the first lens 110 and the imaging plane 190 on the optical axis 100 is TL, the maximum imaging height of the imaging lens assembly is IMH, and the following condition is satisfied: TL / IMH=1.91.

[0134] In the imaging lens assembly of the first embodiment, the distance between the object-side surface 111 of the first lens element 110 and the imaging plane 190 on the optical axis 100 is TL, the distance between the image-side surface 162 of the sixth lens element 160 and the imaging plane 190 on the optical axis 100 is BFL, and the overall focal length of the imaging lens assembly is f, and the following condition is satisfied: (TL-BFL) / f=2.18.

[0135] In the imaging lens assembly of the first embodiment, the maximum imaging height of the imaging lens assembly is IMH, the thickness of the first lens 110 on the optical axis 100 is CT1, the thickness of the third lens 130 on the optical axis 100 is CT3, and the following condition is satisfied: IMH / (CT1+CT3)=4.98.

[0136] In the imaging lens assembly of the first embodiment, the thickness of the second lens 120 on the optical axis 100 is CT2, the thickness of the fifth lens 150 on the optical axis 100 is CT5, the focal length of the second lens 120 is f2, the focal length of the fifth lens 150 is f5, and the following condition is satisfied: (f2 / CT2)-(f5 / CT5)=2.72.

[0137] In the imaging lens assembly of the first embodiment, the Abbe coefficient of the third lens 130 is vd3, and the Abbe coefficient of the fourth lens 140 is vd4, and the following condition is satisfied: vd4-vd3=36.76.

[0138] In the imaging lens group of the first embodiment, the Abbe coefficient of the fifth lens 150 is vd5, the Abbe coefficient of the sixth lens 160 is vd6, the focal length of the fifth lens 150 is f5, the focal length of the sixth lens 160 is f6, and the following condition is satisfied: │vd5 / f5-vd6 / f6│=37.65.

[0139] In the imaging lens assembly of the first embodiment, the focal length of the first lens 110 is f1, the focal length of the second lens 120 is f2, and the following condition is satisfied: f1 / f2=-1.98.

[0140] In the imaging lens assembly of the first embodiment, the focal length of the third lens 130 is f3, the focal length of the fifth lens 150 is f5, and the following condition is satisfied: f3 / f5=-5.78.

[0141] In the imaging lens assembly of the first embodiment, the maximum imaging height of the imaging lens assembly is IMH, and satisfies the following condition: IMH=3.28 mm.

[0142] Please refer to Table 1 and Table 2 below.

[0143]

[0144]

[0145]

[0146] Table 1 is Figure 1ADetailed structural data of the first embodiment, wherein the unit of curvature radius, thickness, gap and focal length is mm, and surfaces 0-16 represent the surfaces from the object side to the image side in sequence, surface 3 is the gap between the aperture STO and the object side surface 121 of the second lens 120 on the optical axis 100, and the object side surface 121 of the second lens 120 is closer to the object side than the aperture STO, so it is represented by a negative value. Conversely, if the aperture STO is closer to the object side than the object side surface 121 of the second lens 120, it is represented by a positive value; surfaces 1, 4, 6, 8, 10, 12, and 14 are the first lens 110, the second lens 120, the third lens 130, the fourth lens 140, the fifth lens 150, the sixth lens 160, the infrared filter The thickness of the filter 180 on the optical axis 100; surfaces 2, 5, 7, 9, 11, 13, and 15 are respectively the gap on the optical axis 100 between the first lens 110 and the second lens 120, the gap on the optical axis 100 between the second lens 120 and the third lens 130, the gap on the optical axis 100 between the third lens 130 and the fourth lens 140, the gap on the optical axis 100 between the fourth lens 140 and the fifth lens 150, the gap on the optical axis 100 between the fifth lens 150 and the sixth lens 160, the gap on the optical axis 100 between the sixth lens 160 and the infrared cut filter 180, and the gap on the optical axis 100 between the infrared cut filter 180 and the imaging plane 190.

[0147] <Second embodiment>

[0148] Please refer to Figure 2A and Figure 2B ,in, Figure 2A This is a schematic diagram of an imaging lens assembly according to a second embodiment of the present invention. Figure 2B From left to right are the field curvature and distortion curves of the imaging lens assembly of the second embodiment. Figure 2A As can be seen, the imaging lens assembly includes, from the object side to the image side, a first lens 210; an aperture; a second lens 220; a third lens 230; a fourth lens 240; a fifth lens 250; a sixth lens 260, an infrared cutoff filter 280, and an imaging surface 290. The imaging lens assembly includes six lenses with refractive power, but this is not limited to one embodiment.

[0149] The first lens 210 has negative refractive power and is made of plastic. Its object-side surface 211 is concave near the optical axis 200 , and its image-side surface 212 is concave near the optical axis 200 . Both the object-side surface 211 and the image-side surface 212 are aspherical.

[0150] The second lens 220 has positive refractive power and is made of plastic. Its object-side surface 221 is convex near the optical axis 200 , and its image-side surface 222 is convex near the optical axis 200 . Both the object-side surface 221 and the image-side surface 222 are aspherical.

[0151] The third lens 230 has negative refractive power and is made of plastic. Its object-side surface 231 is convex near the optical axis 200 , and its image-side surface 232 is concave near the optical axis 200 . Both the object-side surface 231 and the image-side surface 232 are aspherical.

[0152] The fourth lens 240 has positive refractive power and is made of plastic. Its object-side surface 241 is convex near the optical axis 200 , and its image-side surface 242 is concave near the optical axis 200 . Both the object-side surface 241 and the image-side surface 242 are aspherical.

[0153] The fifth lens element 250 has positive refractive power and is made of plastic. Its object-side surface 251 is concave near the optical axis 200 , and its image-side surface 252 is convex near the optical axis 200 . Both the object-side surface 251 and the image-side surface 252 are aspherical.

[0154] The sixth lens 260 has positive refractive power and is made of plastic. Its object-side surface 261 is convex near the optical axis 200 , and its image-side surface 262 is concave near the optical axis 200 . Both the object-side surface 261 and the image-side surface 262 are aspherical.

[0155] The infrared cut filter 280 is made of glass and is positioned between the sixth lens element and the imaging surface 290 without affecting the focal length of the imaging lens assembly. It is understood that the infrared cut filter element can also be formed on the lens surface or made of other materials. Please refer to Tables 3 and 4 below for details.

[0156]

[0157]

[0158]

[0159] In the second embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment and are not repeated here.

[0160] The following data can be calculated by combining Table 3 and Table 4:

[0161]

[0162] <Third embodiment>

[0163] Please refer to Figure 3A and Figure 3B ,in, Figure 3A This is a schematic diagram of an imaging lens assembly according to a third embodiment of the present invention. Figure 3B From left to right are the field curvature and distortion curves of the imaging lens assembly of the third embodiment. Figure 3A As can be seen, the imaging lens assembly includes, from the object side to the image side, a first lens 310; an aperture; a second lens 320; a third lens 330; a fourth lens 340; a fifth lens 350; a sixth lens 360; an infrared cutoff filter 380; and an imaging surface 390. The imaging lens assembly comprises six lenses with refractive power, but this is not limited to one embodiment.

[0164] The first lens 310 has negative refractive power and is made of plastic. Its object-side surface 311 is concave near the optical axis 300 , and its image-side surface 312 is concave near the optical axis 300 . Both the object-side surface 311 and the image-side surface 312 are aspherical.

[0165] The second lens 320 has positive refractive power and is made of plastic. Its object-side surface 321 is convex near the optical axis 300 , and its image-side surface 322 is convex near the optical axis 300 . Both the object-side surface 321 and the image-side surface 322 are aspherical.

[0166] The third lens 330 has negative refractive power and is made of plastic. Its object-side surface 331 is convex near the optical axis 300 , and its image-side surface 332 is concave near the optical axis 300 . Both the object-side surface 331 and the image-side surface 332 are aspherical.

[0167] The fourth lens 340 has positive refractive power and is made of plastic. Its object-side surface 341 is convex near the optical axis 300 , and its image-side surface 342 is concave near the optical axis 300 . Both the object-side surface 341 and the image-side surface 342 are aspherical.

[0168] The fifth lens element 350 has positive refractive power and is made of plastic. Its object-side surface 351 is concave near the optical axis 300 , and its image-side surface 352 is convex near the optical axis 300 . Both the object-side surface 351 and the image-side surface 352 are aspherical.

[0169] The sixth lens 360 has positive refractive power and is made of plastic. Its object-side surface 361 is convex near the optical axis 300 , and its image-side surface 362 is concave near the optical axis 300 . Both the object-side surface 361 and the image-side surface 362 are aspherical.

[0170] The infrared cut filter 380 (IR-cut filter) is made of glass and is disposed between the sixth lens and the imaging surface 390 without affecting the focal length of the imaging lens group. It is understood that the infrared cut filter element can also be formed on the lens surface, and the infrared cut filter element can also be made of other materials.

[0171] Please refer to Table 5 and Table 6 below.

[0172]

[0173]

[0174] In the third embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment and are not repeated here.

[0175] The following data can be calculated by combining Table 5 and Table 6:

[0176]

[0177]

[0178] <Fourth embodiment>

[0179] Please refer to Figure 4A and Figure 4B ,in, Figure 4A is a schematic diagram of an imaging lens assembly according to a fourth embodiment of the present invention. Figure 4B From left to right are the field curvature and distortion curves of the imaging lens assembly of the fourth embodiment. Figure 4A As can be seen, the imaging lens assembly includes, from the object side to the image side, a first lens 410; an aperture; a second lens 420; a third lens 430; a fourth lens 440; a fifth lens 450; a sixth lens 460; an infrared cutoff filter 480; and an imaging surface 490. The imaging lens assembly includes six lenses with refractive power, but this is not limited to one embodiment.

[0180] The first lens 410 has negative refractive power and is made of plastic. Its object-side surface 411 is concave near the optical axis 400 , and its image-side surface 412 is concave near the optical axis 400 . Both the object-side surface 411 and the image-side surface 412 are aspherical.

[0181] The second lens 420 has positive refractive power and is made of plastic. Its object-side surface 421 is convex near the optical axis 400 , and its image-side surface 422 is convex near the optical axis 400 . Both the object-side surface 421 and the image-side surface 422 are aspherical.

[0182] The third lens 430 has negative refractive power and is made of plastic. Its object-side surface 431 is convex near the optical axis 400 , and its image-side surface 432 is concave near the optical axis 400 . Both the object-side surface 431 and the image-side surface 432 are aspherical.

[0183] The fourth lens 440 has positive refractive power and is made of plastic. Its object-side surface 441 is convex near the optical axis 400 , and its image-side surface 442 is concave near the optical axis 400 . Both the object-side surface 441 and the image-side surface 442 are aspherical.

[0184] The fifth lens element 450 has positive refractive power and is made of plastic. Its object-side surface 451 is convex near the optical axis 400 , and its image-side surface 452 is convex near the optical axis 400 . Both the object-side surface 451 and the image-side surface 452 are aspherical.

[0185] The sixth lens 460 has positive refractive power and is made of plastic. Its object-side surface 461 is convex near the optical axis 400 , and its image-side surface 462 is concave near the optical axis 400 . Both the object-side surface 461 and the image-side surface 462 are aspherical.

[0186] The infrared cut filter 480 (IR-cut filter) is made of glass, which is arranged between the sixth lens and the imaging surface 490 and does not affect the focal length of the imaging lens group; it can be understood that the infrared cut filter element can also be formed on the lens surface, and the infrared cut filter element can also be made of other materials.

[0187] Please refer to Table 7 and Table 8 below.

[0188]

[0189]

[0190]

[0191]

[0192] In the fourth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment and are not repeated here.

[0193] The following data can be calculated by combining Table 7 and Table 8:

[0194]

[0195] <Fifth embodiment>

[0196] Please refer to Figure 5A and Figure 5B ,in, Figure 5A is a schematic diagram of an imaging lens assembly according to a fifth embodiment of the present invention. Figure 5B From left to right are the field curvature and distortion curves of the imaging lens assembly of the fifth embodiment. Figure 5A As can be seen, the imaging lens assembly includes, from the object side to the image side, a first lens 510; an aperture; a second lens 520; a third lens 530; a fourth lens 540; a fifth lens 550; a sixth lens 560; an infrared cutoff filter 580; and an imaging surface 590. The imaging lens assembly includes six lenses with refractive power, but this is not limited to one embodiment.

[0197] The first lens 510 has negative refractive power and is made of plastic. Its object-side surface 511 is concave near the optical axis 500 , and its image-side surface 512 is concave near the optical axis 500 . Both the object-side surface 511 and the image-side surface 512 are aspherical.

[0198] The second lens 520 has positive refractive power and is made of plastic. Its object-side surface 521 is convex near the optical axis 500 , and its image-side surface 522 is convex near the optical axis 500 . Both the object-side surface 521 and the image-side surface 522 are aspherical.

[0199] The third lens 530 has negative refractive power and is made of plastic. Its object-side surface 531 is convex near the optical axis 500 , and its image-side surface 532 is concave near the optical axis 500 . Both the object-side surface 531 and the image-side surface 532 are aspherical.

[0200] The fourth lens 540 has positive refractive power and is made of plastic. Its object-side surface 541 is convex near the optical axis 500 , and its image-side surface 542 is concave near the optical axis 500 . Both the object-side surface 541 and the image-side surface 542 are aspherical.

[0201] The fifth lens element 550 has positive refractive power and is made of plastic. Its object-side surface 551 is concave near the optical axis 500 , and its image-side surface 552 is convex near the optical axis 500 . Both the object-side surface 551 and the image-side surface 552 are aspherical.

[0202] The sixth lens 560 has positive refractive power and is made of plastic. Its object-side surface 561 is convex near the optical axis 500 , and its image-side surface 562 is concave near the optical axis 500 . Both the object-side surface 561 and the image-side surface 562 are aspherical.

[0203] The infrared cut filter 580 (IR-cut filter) is made of glass, which is arranged between the sixth lens and the imaging surface 590 and does not affect the focal length of the imaging lens group; it can be understood that the infrared cut filter element can also be formed on the lens surface, and the infrared cut filter element can also be made of other materials.

[0204] Please refer to Table 9 and Table 10 below.

[0205]

[0206]

[0207]

[0208] In the fifth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment and are not repeated here.

[0209] The following data can be calculated by combining Table 9 and Table 10:

[0210]

[0211] <Sixth embodiment>

[0212] Please refer to Figure 6A and Figure 6B ,in, Figure 6A This is a schematic diagram of an imaging lens assembly according to a sixth embodiment of the present invention. Figure 6B From left to right are the field curvature and distortion curves of the imaging lens assembly of the sixth embodiment. Figure 6A As can be seen, the imaging lens assembly includes, from the object side to the image side, a first lens 610; an aperture; a second lens 620; a third lens 630; a fourth lens 640; a fifth lens 650; a sixth lens 660, an infrared cutoff filter 680, and an imaging surface 690. The imaging lens assembly includes six lenses with refractive power, but this is not limited to one embodiment.

[0213] The first lens 610 has negative refractive power and is made of plastic. Its object-side surface 611 is concave near the optical axis 600 , and its image-side surface 612 is concave near the optical axis 600 . Both the object-side surface 611 and the image-side surface 612 are aspherical.

[0214] The second lens 620 has positive refractive power and is made of plastic. Its object-side surface 621 is convex near the optical axis 600 , and its image-side surface 622 is convex near the optical axis 600 . Both the object-side surface 621 and the image-side surface 622 are aspherical.

[0215] The third lens 630 has negative refractive power and is made of plastic. Its object-side surface 631 is convex near the optical axis 600 , and its image-side surface 632 is concave near the optical axis 600 . Both the object-side surface 631 and the image-side surface 632 are aspherical.

[0216] The fourth lens 640 has positive refractive power and is made of plastic. Its object-side surface 641 is convex near the optical axis 600 , and its image-side surface 642 is concave near the optical axis 600 . Both the object-side surface 641 and the image-side surface 642 are aspherical.

[0217] The fifth lens 650 has positive refractive power and is made of plastic. Its object-side surface 651 is convex near the optical axis 600 , and its image-side surface 652 is convex near the optical axis 600 . Both the object-side surface 651 and the image-side surface 652 are aspherical.

[0218] The sixth lens 660 has positive refractive power and is made of plastic. Its object-side surface 661 is convex near the optical axis 600 , and its image-side surface 662 is concave near the optical axis 600 . Both the object-side surface 661 and the image-side surface 662 are aspherical.

[0219] The infrared cut filter 680 (IR-cut filter) is made of glass, which is arranged between the sixth lens and the imaging surface 690 and does not affect the focal length of the imaging lens group; it can be understood that the infrared cut filter element can also be formed on the lens surface, and the infrared cut filter element can also be made of other materials.

[0220] Please refer to Table 11 and Table 12 below.

[0221]

[0222]

[0223]

[0224] In the sixth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment and are not repeated here.

[0225] The following data can be calculated by combining Table 11 and Table 12:

[0226]

[0227]

[0228] <Seventh embodiment>

[0229] Please refer to Figure 7 , Figure 7This is a camera module according to a seventh embodiment of the present invention. The camera module comprises a lens barrel 1000; an imaging lens assembly 3000 disposed within the lens barrel 1000; and an image sensor 2000, which is an electronic photosensitive element and disposed on the imaging surface of the imaging lens assembly. The imaging lens assembly is similar to the imaging lens assembly described in any one of the first to sixth embodiments.

[0230] In the aforementioned embodiments, a person having ordinary knowledge in the relevant field should understand that in the imaging lens group and the camera module provided by the present invention, the lens can be made of glass or plastic. The glass lens can increase the freedom of the refractive power configuration of the imaging lens group, and the glass lens can be made by related technologies such as grinding or molding. The plastic lens can reduce the production cost.

[0231] In the imaging lens assembly provided by the present invention, with respect to a lens having refractive power, if the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at the near optical axis; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is concave at the near optical axis.

[0232] The imaging lens assembly and camera module provided by the present invention can be used in optical systems requiring high resolution and ultra-wide angle. It also has a resolution capability of up to 50M and an aperture design of 2.0 and 2.2. It can be widely used in electronic imaging systems such as mobile phones, notebook computers, digital tablets, mobile devices, digital cameras or automotive photography.

Claims

1. An imaging lens assembly, characterized in that: From object side to image side, it includes: a first lens element having negative refractive power, wherein the object-side surface of the first lens element is concave near the optical axis, and the image-side surface of the first lens element is concave near the optical axis; One aperture; a second lens having positive refractive power, wherein the object-side surface of the second lens is convex near the optical axis, and the image-side surface of the second lens is convex near the optical axis; a third lens element having negative refractive power, wherein the object-side surface of the third lens element is convex near the optical axis, and the image-side surface of the third lens element is concave near the optical axis; a fourth lens element having positive refractive power, wherein the object-side surface of the fourth lens element is convex near the optical axis, and the image-side surface of the fourth lens element is concave near the optical axis; a fifth lens element having positive refractive power, wherein the image-side surface of the fifth lens element is convex near the optical axis; and a sixth lens element having negative refractive power, wherein the object-side surface of the sixth lens element is convex near the optical axis, and the image-side surface of the sixth lens element is concave near the optical axis; The total number of refractive lenses in the imaging lens assembly is six, half of the maximum viewing angle of the imaging lens assembly is HFOV, the aperture value of the imaging lens assembly is Fno, the distance between the object-side surface of the first lens and the imaging plane on the optical axis is TL, the maximum imaging height of the imaging lens assembly is IMH, IMH is half the diagonal length of the effective pixel area of ​​the image sensor, the overall focal length of the imaging lens assembly is f, the focal length of the first lens is f1, and the following conditions are satisfied: 0.73 (degrees / square mm) < HFOV / (IMH*Fno*TL) < 1.67 (degrees / square mm), and -0.58 < f / f1 < -0.

30.

2. The imaging lens assembly according to claim 1, wherein: The object side surface curvature radius of the first lens is R1, the image side surface curvature radius of the first lens is R2, and the following conditions are met: -1.24 <R1 / R2 < -0.31。 3. The imaging lens assembly according to claim 1, wherein: The thickness of the third lens on the optical axis is CT3, the radius of curvature of the object-side surface of the third lens is R5, the radius of curvature of the image-side surface of the third lens is R6, and the following condition is satisfied: 0.31 (mm) < CT3*(R5 / R6) < 0.76 (mm).

4. The imaging lens assembly according to claim 1, wherein: The overall focal length of the imaging lens group is f, the focal length of the sixth lens is f6, and the following condition is satisfied: -1.09 < f / f6 < -0.

58.

5. The imaging lens assembly according to claim 1, wherein: The focal length of the first lens is f1, the focal length of the third lens is f3, and the focal length of the sixth lens is f6, and the following conditions are met: -11.04(mm) < f3*f6 / f1 < -3.24(mm).

6. The imaging lens assembly according to claim 1, wherein: The focal length of the third lens is f3, the focal length of the fourth lens is f4, and the focal length of the fifth lens is f5, and the following condition is satisfied: -3.68 (1 / mm) < f4 / (f3*f5) < -0.42 (1 / mm).

7. The imaging lens assembly according to claim 1, wherein: The thickness of the third lens on the optical axis is CT3, the thickness of the fourth lens on the optical axis is CT4, the thickness of the fifth lens on the optical axis is CT5, and the thickness of the sixth lens on the optical axis is CT6, and the following condition is satisfied: 1.50 < (CT4+CT5) / (CT3+CT6) < 2.

58.

8. The imaging lens assembly according to claim 1, wherein: The thickness of the first lens on the optical axis is CT1, the thickness of the sixth lens on the optical axis is CT6, and the distance from the image-side surface of the first lens to the aperture on the optical axis is T1S, and the following condition is satisfied: 0.54 < (CT1+CT6) / T1S < 1.

10.

9. The imaging lens assembly according to claim 1, wherein: The distance between the object-side surface of the first lens and the imaging plane on the optical axis is TL, the maximum imaging height of the imaging lens group is IMH, and the following condition is satisfied: 1.52 < TL / IMH < 2.

34.

10. The imaging lens assembly according to claim 1, wherein: The distance between the object-side surface of the first lens and the imaging plane on the optical axis is TL, the distance between the image-side surface of the sixth lens and the imaging plane on the optical axis is BFL, the overall focal length of the imaging lens assembly is f, and the following condition is satisfied: 1.75 < (TL-BFL) / f < 3.

27.

11. The imaging lens assembly according to claim 1, wherein: The maximum imaging height of the imaging lens assembly is IMH, the thickness of the first lens on the optical axis is CT1, the thickness of the third lens on the optical axis is CT3, and the following condition is satisfied: 3.52 < IMH / (CT1+CT3) < 6.

15.

12. The imaging lens assembly according to claim 1, wherein: The thickness of the second lens on the optical axis is CT2, the thickness of the fifth lens on the optical axis is CT5, the focal length of the second lens is f2, the focal length of the fifth lens is f5, and the following condition is satisfied: 1.76 < (f2 / CT2) - (f5 / CT5) < 3.

26.

13. The imaging lens assembly according to claim 1, wherein: The Abbe coefficient of the third lens is vd3, the Abbe coefficient of the fourth lens is vd4, and the following condition is satisfied: 29.4 < vd4-vd3 < 45.

4.

14. The imaging lens assembly according to claim 1, wherein: The Abbe coefficient of the fifth lens is vd5, the Abbe coefficient of the sixth lens is vd6, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, and the following condition is satisfied: 24.2 (1 / mm) <│vd5 / f5-vd6 / f6│ < 48.5 (1 / mm).

15. A camera module, comprising: a lens barrel; An imaging lens assembly as claimed in any one of claims 1 to 14, disposed in the lens barrel; and An image sensor is disposed on the imaging surface of the imaging lens assembly.

Images