Optical imaging lens group, image capturing device and electronic device

Abstract

The invention discloses an optical imaging lens group. The optical imaging lens group comprises seven lenses. The seven lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens from the object side to the image side along an optical path. Each of the seven lenses has an object-side surface facing the object-side direction and an image-side surface facing the image-side direction. The second lens element has negative refractive power. The third lens element has an object-side surface being concave in a paraxial region thereof. The fourth lens element has positive refractive power. The fifth lens element has an image-side surface being concave in a paraxial region thereof. The sixth lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. When specific conditions are met, the optical imaging lens group can meet the requirements of wide viewing angle, miniaturization and high imaging quality at the same time. The invention further discloses an image capturing device with the optical imaging lens group and an electronic device with the image capturing device.

Description

Technical Field

[0001] The present disclosure relates to an optical imaging lens group, an imaging device, and an electronic device, and particularly to an optical imaging lens group and an imaging device applicable to an electronic device. Background Art

[0002] With the further refinement of semiconductor process technology, the performance of electronic photosensitive elements has been improved, and pixels can reach smaller sizes. Therefore, optical lenses with high imaging quality have become an essential part.

[0003] With the rapid development of technology, the application scope of electronic devices equipped with optical lenses is more extensive, and the requirements for optical lenses are also more diverse. Since it is difficult for existing optical lenses to balance the requirements of imaging quality, sensitivity, aperture size, volume, or viewing angle, the present invention provides an optical lens to meet the requirements. Summary of the Invention

[0004] The present disclosure provides an optical imaging lens group, an imaging device, and an electronic device. Among them, the optical imaging lens group includes seven lenses arranged in sequence along the optical path from the object side to the image side. When specific conditions are met, the optical imaging lens group provided by the present disclosure can simultaneously meet the requirements of a wide viewing angle, miniaturization, and high imaging quality.

[0005] The present disclosure provides an optical imaging lens group including seven lenses. The seven lenses are, in sequence from the object side to the image side along the optical path, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The seven lenses respectively have an object side surface facing the object side direction and an image side surface facing the image side direction. Preferably, the second lens has a negative refractive power. Preferably, the object side surface of the third lens is concave near the optical axis. Preferably, the fourth lens has a positive refractive power. Preferably, the image side surface of the fifth lens is concave near the optical axis. Preferably, the sixth lens has a positive refractive power. Preferably, the image side surface of the sixth lens is convex near the optical axis. The distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, the radius of curvature of the object side surface of the first lens is R1, the radius of curvature of the object side surface of the third lens is R5, the Abbe number of the seventh lens is V7, and half of the maximum viewing angle in the optical imaging lens group is HFOV, which preferably satisfies the following conditions:

[0006] 0 < T34 / T45 < 0.50;

[0007] 0 < (R1 + R5) / (R1 - R5) < 10.00;

[0008] 5.0 < V7 < 50.0; and

[0009] 0 < 1 / |tan(HFOV)| < 0.500.

[0010] The present disclosure further provides an optical imaging lens group, which includes seven lenses. The seven lenses are, in order from the object side to the image side along the optical path, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The seven lenses respectively have an object-side surface facing the object side and an image-side surface facing the image side. Preferably, the first lens has a negative refractive power. Preferably, the second lens has a negative refractive power. Preferably, the object-side surface of the third lens is concave near the optical axis. Preferably, the fourth lens has a positive refractive power. Preferably, the image-side surface of the fifth lens is concave near the optical axis. Preferably, the sixth lens has a positive refractive power. The distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the thickness of the first lens on the optical axis is CT1, the thickness of the seventh lens on the optical axis is CT7, the radius of curvature of the object-side surface of the fourth lens is R7, and the radius of curvature of the object-side surface of the seventh lens is R13, and they preferably satisfy the following conditions:

[0011] 0 < T34 / T45 < 0.50;

[0012] 0.08 < |f6 / f5| < 0.90;

[0013] 1.50 < CT1 / CT7 < 10.00; and

[0014] -5.00 < (R7 + R13) / (R7 - R13) < 0.80.

[0015] The present disclosure further provides an optical imaging lens group, which includes seven lenses. The seven lenses are, in order from the object side to the image side along the optical path, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The seven lenses respectively have an object-side surface facing the object side and an image-side surface facing the image side. Preferably, the first lens has a negative refractive power. Preferably, the second lens has a negative refractive power. Preferably, the object-side surface of the third lens is concave near the optical axis. Preferably, the sixth lens has a positive refractive power. Preferably, the image-side surface of the sixth lens is convex near the optical axis. The distance between the second lens and the third lens on the optical axis is T23, the distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, the thickness of the third lens on the optical axis is CT3, the Abbe number of the seventh lens is V7, 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 fifth lens is R10, and they preferably satisfy the following conditions:

[0016] 0 < T34 / T45 < 0.50;

[0017] 0 < CT3 / T23 < 1.00;

[0018] 5.0 < V7 < 50.0; and

[0019] 0.10 < |R5 / R10| < 5.00.

[0020] The present disclosure provides an imaging device, which includes the aforementioned optical imaging lens group and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on the imaging surface of the optical imaging lens group.

[0021] The present disclosure provides an electronic device, which includes the aforementioned imaging device.

[0022] When T34 / T45 satisfies the above conditions, the distance between the third lens and the fourth lens and the distance between the fourth lens and the fifth lens can be balanced, which helps to reduce the incident angle of light on the object side surface of the fifth lens, avoid total reflection and the generation of stray light, and balance the spatial configuration of the lenses.

[0023] When (R1 + R5) / (R1 - R5) satisfies the above conditions, the curvature radius of the object side surface of the first lens and the curvature radius of the object side surface of the third lens can be effectively balanced. Among them, by adjusting the curvature radius of the object side surface of the first lens, large-angle light enters the optical imaging lens group, and is balanced by adjusting the curvature radius of the object side surface of the third lens to avoid generating excessive aberrations.

[0024] When V7 satisfies the above conditions, the material configuration of the seventh lens can be adjusted, thereby effectively correcting the chromatic aberration of the optical imaging lens group and preventing the occurrence of image overlap, so as to improve the imaging quality.

[0025] When 1 / |tan(HFOV)| satisfies the above conditions, the optical lens can have a sufficient imaging range to meet the field of view requirements of the application device.

[0026] When |f6 / f5| satisfies the above conditions, the refractive power ratio of the fifth lens and the sixth lens can be adjusted. Among them, the sixth lens has the ability to converge light, and is balanced by the fifth lens to effectively control the direction of the peripheral light path.

[0027] When CT1 / CT7 satisfies the above conditions, the ratio of the center thickness of the first lens and the center thickness of the seventh lens can be balanced, which helps to take into account the process limitations of the first lens, and reduces the volume of the optical imaging lens group by adjusting the center thickness of the seventh lens.

[0028] When (R7+R13) / (R7-R13) satisfies the above conditions, the curvature radius of the object side surface of the fourth lens and the curvature radius of the object side surface of the seventh lens can be effectively balanced, thereby adjusting the traveling direction of the peripheral light and helping to reduce the incident angle of the light on the imaging surface.

[0029] When CT3 / T23 meets the above conditions, the center thickness of the third lens and the distance between the second lens and the third lens can be balanced, which helps to provide sufficient length for large-angle light to be deflected and avoid total reflection.

[0030] When |R5 / R10| satisfies the above conditions, the curvature radius of the object-side surface of the third lens and the curvature radius of the image-side surface of the fifth lens can be adjusted, which helps to improve the focusing quality of the imaging light, effectively improve the image curvature and reduce spherical aberration.

[0031] The above description of the contents of the present disclosure and the following description of the embodiments are used to demonstrate and explain the spirit and principle of the present disclosure, and to provide further explanation of the claims of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of an imaging device according to a first embodiment of the present disclosure is shown.

[0033] Figure 2 From left to right are the spherical aberration, astigmatism and distortion curves of the first embodiment.

[0034] Figure 3 A schematic diagram of an imaging device according to a second embodiment of the present disclosure is shown.

[0035] Figure 4 From left to right are the spherical aberration, astigmatism and distortion curves of the second embodiment.

[0036] Figure 5 A schematic diagram of an imaging device according to a third embodiment of the present disclosure is shown.

[0037] Figure 6 From left to right are the spherical aberration, astigmatism and distortion curves of the third embodiment.

[0038] Figure 7 A schematic diagram of an imaging device according to a fourth embodiment of the present disclosure is shown.

[0039] Figure 8 From left to right are the spherical aberration, astigmatism and distortion curves of the fourth embodiment.

[0040] Fig. 9 A schematic diagram of an imaging device according to a fifth embodiment of the present disclosure is shown.

[0041] Fig.10From left to right are the spherical aberration, astigmatism and distortion curves of the fifth embodiment.

[0042] Fig.11 A schematic diagram of an imaging device according to a sixth embodiment of the present disclosure is shown.

[0043] Fig.12 From left to right are the spherical aberration, astigmatism and distortion curves of the sixth embodiment.

[0044] Fig.13 A schematic diagram of an imaging device according to a seventh embodiment of the present disclosure is shown.

[0045] Fig.14 From left to right are the spherical aberration, astigmatism and distortion curves of the seventh embodiment.

[0046] Fig.15 A schematic diagram of an imaging device according to an eighth embodiment of the present disclosure is shown.

[0047] Fig.16 From left to right are the spherical aberration, astigmatism and distortion curves of the eighth embodiment.

[0048] Fig.17 A schematic diagram of an imaging device according to a ninth embodiment of the present disclosure is shown.

[0049] Fig.18 From left to right are the spherical aberration, astigmatism and distortion curves of the ninth embodiment.

[0050] Fig.19 A three-dimensional schematic diagram of an imaging device according to a tenth embodiment of the present disclosure is shown.

[0051] Fig. 20 A three-dimensional schematic diagram of one side of an electronic device according to an eleventh embodiment of the present disclosure is shown.

[0052] Fig.21 Draw Fig. 20 A three-dimensional schematic diagram of the other side of the electronic device.

[0053] Fig. 22 A three-dimensional schematic diagram of one side of an electronic device according to a twelfth embodiment of the present disclosure is shown.

[0054] Fig.23 Draw Fig. 22 A three-dimensional schematic diagram of the other side of the electronic device.

[0055] Fig.24 Draw Fig. 22 A system block diagram of an electronic device.

[0056] Fig.25A three-dimensional schematic diagram of one side of an electronic device according to a thirteenth embodiment of the present disclosure is shown.

[0057] Fig.26 A three-dimensional schematic diagram of one side of an electronic device according to a fourteenth embodiment of the present disclosure is shown.

[0058] Fig. 27 A schematic diagram of an electronic device according to a fifteenth embodiment of the present disclosure is shown.

[0059] Fig.28 A three-dimensional schematic diagram of an electronic device according to a sixteenth embodiment of the present disclosure is shown.

[0060] Fig.29 Draw Fig.28 A schematic side view of an electronic device.

[0061] Fig.30 Draw Fig.28 A schematic top view of an electronic device.

[0062] Fig.31 A schematic diagram of an electronic device according to a seventeenth embodiment of the present disclosure is shown.

[0063] Fig.32 A schematic diagram illustrating an inflection point on a lens surface and a critical point on a lens surface according to a first embodiment of the present disclosure is shown.

[0064] Fig.33 FIG. 4 is a schematic diagram showing parameters Sag3R1 , Sag7R1 , and Y7R2 in the first embodiment of the present disclosure.

[0065] Fig.34 A schematic diagram showing a configuration relationship of an optical path turning element in an optical imaging lens assembly according to the present disclosure is shown.

[0066] Fig.35 FIG. 4 is a schematic diagram showing another configuration relationship of an optical path turning element in an optical imaging lens assembly according to the present disclosure.

[0067] Fig.36 A schematic diagram showing a configuration relationship of two optical path turning elements in an optical imaging lens assembly according to the present disclosure is shown.

[0068]

Explanation of symbols

[0069] 1, 2, 3, 4, 5, 6, 7, 8, 9, 100, 100a, 100b, 100c, 100d, 100e, 100f, 100g, 100h , 100i, 100j, 100k, 100m, 100n, 100p, 100q, 100r, 100s, 602, 701, 801: imaging device

[0070] 101: Imaging Lens

[0071] 102: Driving device

[0072] 103: Electronic photosensitive element

[0073] 104: Image stabilization module

[0074] 200, 300, 400, 500, 600, 700, 800: Electronic device

[0075] 201, 304: Display module

[0076] 301, 401, 501: Flash module

[0077] 601: Screen

[0078] 302: Focus assist module

[0079] 303: Image Signal Processor

[0080] 305: Image software processor

[0081] 306: Subject

[0082] C: Tipping point

[0083] P: Inflection point

[0084] OA1: First optical axis

[0085] OA2: Second optical axis

[0086] OA3: Third optical axis

[0087] LF: Optical path turning element

[0088] LF1: First optical path turning element

[0089] LF2: Second optical path turning element

[0090] LG: Lens Group

[0091] ST: Aperture

[0092] S1, S2: aperture

[0093] E1: First lens

[0094] E2: Second lens

[0095] E3: The third lens

[0096] E4: The fourth lens

[0097] E5: The fifth lens

[0098] E6: The sixth lens

[0099] E7: Seventh lens

[0100] E8: Filter element

[0101] IMG: Imaging surface

[0102] IS: Electronic photosensitive element

[0103] Sag3R1: The displacement parallel to the optical axis from the intersection of the third lens object side surface on the optical axis to the maximum effective radius position of the third lens object side surface

[0104] Sag7R1: The displacement parallel to the optical axis from the intersection of the seventh lens object side surface on the optical axis to the maximum effective radius position of the seventh lens object side surface

[0105] Y7R2: Maximum effective radius of the image side surface of the seventh lens DETAILED DESCRIPTION

[0106] The optical imaging lens assembly includes seven lenses, and the seven lenses are sequentially arranged from the object side to the image side along the optical path, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The seven lenses respectively have an object side surface facing the object side direction and an image side surface facing the image side direction.

[0107] The first lens may have negative refractive power, thereby helping to expand the viewing angle to obtain image information in a wider range.

[0108] The second lens has negative refractive power, thereby effectively sharing the refractive power strength of the first lens, so as to avoid excessive aberrations caused by excessive curvature of the first lens.

[0109] The object side surface of the third lens is concave near the optical axis, which helps to balance the incident angle of the wide-angle light incident on the third lens and avoid the situation of light divergence.

[0110] The fourth lens element may have positive refractive power, thereby helping to converge light to compress the volume.

[0111] The fifth lens may have negative refractive power, thereby balancing the refractive power of the sixth lens and reducing the length of the back focal length. The image side surface of the fifth lens may be concave near the optical axis, thereby adjusting the surface shape of the image side surface of the fifth lens and cooperating with the sixth lens to reduce the size of chromatic aberration.

[0112] The sixth lens has positive refractive power, which helps to converge light, effectively control the direction of the light path, and achieve a balance between viewing angle and volume distribution. The image side surface of the sixth lens can be convex near the optical axis, which can provide the sixth lens with the ability to converge light to avoid stray light caused by excessive incident angles of light in the peripheral area.

[0113] The seventh lens element may have negative refractive power, thereby effectively controlling the back focal length of the optical imaging lens assembly to avoid the total length of the optical lens being too long. The image side surface of the seventh lens element may be concave near the optical axis, thereby helping to compress the back focal length and correct off-axis aberrations.

[0114] According to the optical imaging lens assembly disclosed in the present disclosure, the fifth lens can be bonded to the sixth lens, the image side surface of the fifth lens can be an aspherical surface, and the object side surface of the sixth lens can be an aspherical surface. Thus, the refractive index difference of the distance between the lenses can be reduced by bonding the two aspherical lenses, thereby effectively reducing the reflection generated by the refraction of light and avoiding the occurrence of ghosting and other phenomena.

[0115] According to the optical imaging lens assembly disclosed in the present disclosure, at least one of the object-side surface and the image-side surface of the third lens may have at least one inflection point, thereby adjusting the surface shape design of the third lens periphery to facilitate astigmatism correction. The image-side surface of the third lens may have at least one inflection point. The object-side surface of the seventh lens may have at least one inflection point, thereby enhancing the seventh lens periphery's ability to correct image aberrations. The image-side surface of the seventh lens may have at least one inflection point, thereby adjusting the incident angle of light on the imaging plane, controlling the peripheral light angle, avoiding dark corners in the image periphery, and reducing distortion. Please refer to Fig.32 , is a schematic diagram illustrating an inflection point P of a lens surface according to the first embodiment of the present disclosure. Fig.32 In the first embodiment of the present disclosure, the inflection points located on the second to seventh lens surfaces are illustrated as exemplary illustrations. However, in other embodiments of the present disclosure, each lens surface may have one or more inflection points.

[0116] According to the optical imaging lens assembly disclosed in the present disclosure, at least one of the object-side surface and the image-side surface of the seventh lens can have at least one critical point at an off-axis position. This can increase the degree of lens surface variation, which helps to compress the volume and correct aberrations. Fig.32 , is a schematic diagram illustrating a critical point C of the lens surface at an off-axis position according to the first embodiment of the present disclosure. Fig.32 The critical points located on the image-side surface of the seventh lens in the first embodiment of the present disclosure are illustrated as an exemplary illustration. However, in other embodiments of the present disclosure, each lens surface may have one or more critical points at an off-axis location.

[0117] The distance between the third lens and the fourth lens on the optical axis is T34, and the distance between the fourth lens and the fifth lens on the optical axis is T45, which satisfy the following conditions: 0 < T34 / T45 < 0.50. Thereby, the distance between the third lens and the fourth lens and the distance between the fourth lens and the fifth lens can be balanced, which helps to reduce the incident angle of light on the object side surface of the fifth lens, avoid total reflection and the generation of stray light, and balance the spatial configuration of the lenses. Among them, the following conditions can also be satisfied: 0 < T34 / T45 < 0.40. Among them, the following conditions can also be satisfied: 0 < T34 / T45 < 0.30. Among them, the following conditions can also be satisfied: 0.01 < T34 / T45 < 0.10. Among them, the following conditions can also be satisfied: 0.02 ≤ T34 / T45 ≤ 0.20.

[0118] The radius of curvature of the object side surface of the first lens is R1, and the radius of curvature of the object side surface of the third lens is R5, which can satisfy the following conditions: 0 < (R1 + R5) / (R1 - R5) < 10.00. Thereby, the radius of curvature of the object side surface of the first lens and the radius of curvature of the object side surface of the third lens can be effectively balanced. Among them, large-angle light enters the optical imaging lens group by adjusting the radius of curvature of the object side surface of the first lens, and is balanced by adjusting the radius of curvature of the object side surface of the third lens to avoid generating excessive aberrations. Among them, the following conditions can also be satisfied: 0.10 < (R1 + R5) / (R1 - R5) < 5.00. Among them, the following conditions can also be satisfied: 0.30 < (R1 + R5) / (R1 - R5) < 2.00. Among them, the following conditions can also be satisfied: 0.58 ≤ (R1 + R5) / (R1 - R5) ≤ 1.05.

[0119] The Abbe number of the seventh lens is V7, which can satisfy the following conditions: 5.0 < V7 < 50.0. Thereby, the material configuration of the seventh lens can be adjusted, so as to effectively correct the chromatic aberration of the optical imaging lens group and prevent the occurrence of image overlap, thereby improving the imaging quality. Among them, the following conditions can also be satisfied: 10.0 < V7 < 50.0. Among them, the following conditions can also be satisfied: 10.0 < V7 < 40.0. Among them, the following conditions can also be satisfied: 15.0 < V7 < 30.0. Among them, the following conditions can also be satisfied: 19.5 ≤ V7 ≤ 28.3.

[0120] Half of the maximum viewing angle in the optical imaging lens group is HFOV, which can satisfy the following conditions: 0 < 1 / |tan(HFOV)| < 0.500. Thus, the optical lens can have a sufficient imaging range to meet the field of view requirements of the application device. Among them, the following conditions can also be satisfied: 0 < 1 / |tan(HFOV)| < 0.350. Among them, the following conditions can also be satisfied: 0 < 1 / |tan(HFOV)| < 0.250. Among them, the following conditions can also be satisfied: 0.002 ≤ 1 / |tan(HFOV)| ≤ 0.220.

[0121] The focal length of the fifth lens is f5, and the focal length of the sixth lens is f6, which can satisfy the following conditions: 0.08 < |f6 / f5| < 0.90. Thus, the refractive power ratio of the fifth lens and the sixth lens can be adjusted. Among them, the sixth lens has the ability to converge light, and the fifth lens is used to balance it to effectively control the direction of the peripheral light path. Among them, the following conditions can also be satisfied: 0.15 < |f6 / f5| < 0.70. Among them, the following conditions can also be satisfied: 0.27 ≤ |f6 / f5| ≤ 0.53.

[0122] The thickness of the first lens on the optical axis is CT1, and the thickness of the seventh lens on the optical axis is CT7, which can satisfy the following conditions: 1.50 < CT1 / CT7 < 10.00. Thus, the ratio of the central thickness of the first lens and the central thickness of the seventh lens can be balanced, which helps to take into account the process limitations of the first lens, and the volume of the optical imaging lens group can be reduced by adjusting the central thickness of the seventh lens. Among them, the following conditions can also be satisfied: 1.65 < CT1 / CT7 < 8.00. Among them, the following conditions can also be satisfied: 1.81 ≤ CT1 / CT7 ≤ 6.58.

[0123] The radius of curvature of the object side surface of the fourth lens is R7, and the radius of curvature of the object side surface of the seventh lens is R13, which can satisfy the following conditions: -5.00 < (R7 + R13) / (R7 - R13) < 0.80. Thus, the radius of curvature of the object side surface of the fourth lens and the radius of curvature of the object side surface of the seventh lens can be effectively balanced, so as to adjust the traveling direction of the peripheral light, which helps to reduce the incident angle of the light on the imaging surface. Among them, the following conditions can also be satisfied: -4.00 < (R7 + R13) / (R7 - R13) < 0.50. Among them, the following conditions can also be satisfied: -2.00 < (R7 + R13) / (R7 - R13) < 0.30. Among them, the following conditions can also be satisfied: -3.02 ≤ (R7 + R13) / (R7 - R13) ≤ 0.19.

[0124] The thickness of the third lens on the optical axis is CT3, and the distance between the second lens and the third lens on the optical axis is T23, which can satisfy the following conditions: 0 < CT3 / T23 < 1.00. Thus, the central thickness of the third lens and the distance between the second lens and the third lens can be balanced, which helps to provide sufficient length for the large-angle light rays to be deflected and avoid total reflection. Among them, the following conditions can also be satisfied: 0.05 < CT3 / T23 < 0.70. Among them, the following conditions can also be satisfied: 0.10 < CT3 / T23 < 0.40. Among them, the following conditions can also be satisfied: 0.13 ≤ CT3 / T23 ≤ 0.28.

[0125] 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 fifth lens is R10, which can satisfy the following conditions: 0.10 < |R5 / R10| < 5.00. Thus, the radius of curvature of the object-side surface of the third lens and the radius of curvature of the image-side surface of the fifth lens can be adjusted, which helps to improve the light-condensing quality of the imaging light rays and effectively improve the image curvature and reduce spherical aberration. Among them, the following conditions can also be satisfied: 0.40 < |R5 / R10| < 3.50. Among them, the following conditions can also be satisfied: 0.67 ≤ |R5 / R10| ≤ 2.86.

[0126] The F-number of the optical imaging lens group is Fno, which can satisfy the following conditions: 1.00 < Fno < 2.15. Thus, a balance can be achieved between illuminance and depth of field, and the light input can be strengthened to improve the image quality. Among them, the following conditions can also be satisfied: 1.40 < Fno < 2.10. Among them, the following conditions can also be satisfied: 1.60 < Fno < 2.00.

[0127] The thickness of the third lens on the optical axis is CT3, and the thickness of the fourth lens on the optical axis is CT4, which can satisfy the following conditions: 0 < CT3 / CT4 < 1.00. Thus, the ratio of the central thickness of the third lens to the central thickness of the fourth lens can be controlled, which helps to reduce manufacturing tolerances. Among them, the following conditions can also be satisfied: 0.10 < CT3 / CT4 < 0.80.

[0128] The total thickness of all lenses of the optical imaging lens group on the optical axis is ΣCT, and the total distance between all adjacent lenses of the optical imaging lens group on the optical axis is ΣAT, which can satisfy the following conditions: 0.10 < ΣCT / ΣAT < 1.60. Thus, the ratio of the total central thickness of the lenses of the optical imaging lens group to the total lens spacing can be adjusted, which helps to increase the space utilization efficiency. Among them, the following conditions can also be satisfied: 0.40 < ΣCT / ΣAT < 1.30.

[0129] The distance between the second lens and the third lens on the optical axis is T23, and the distance between the image side surface of the seventh lens and the imaging surface on the optical axis is BL, which can satisfy the following conditions: 0.60 < T23 / BL < 2.50. Thereby, the distance between the second lens and the third lens and the back focal length can be adjusted, which helps to compress the volume. Among them, the following conditions can also be satisfied: 0.75 < T23 / BL < 2.00.

[0130] The distance between the object side surface of the first lens and the image side surface of the fourth lens on the optical axis is Dr1r8, and the distance between the object side surface of the fifth lens and the image side surface of the seventh lens on the optical axis is Dr9r14, which can satisfy the following conditions: 2.60 < Dr1r8 / Dr9r14 < 6.20. Thereby, the central thickness of the object side end lens group and the central thickness of the image side end lens group can be adjusted, which helps to balance the spatial configuration of the lenses to reduce the sensitivity of the optical imaging lens group. Among them, the following conditions can also be satisfied: 3.50 < Dr1r8 / Dr9r14 < 6.00.

[0131] The focal length of the fifth lens is f5, and the focal length of the seventh lens is f7, which can satisfy the following conditions: 0.30 < f5 / f7 < 5.00. Thereby, the refractive powers of the fifth lens and the seventh lens can be effectively balanced, which helps to broaden the shooting field of view and correct off-axis aberration. Among them, the following conditions can also be satisfied: 0.36 < f5 / f7 < 3.50. Among them, the following conditions can also be satisfied: 0.42 < f5 / f7 < 2.00.

[0132] The focal length of the fourth lens is f4, and the focal length of the sixth lens is f6, which can satisfy the following conditions: 1.20 < f4 / f6 < 5.00. Thereby, the ratio of the refractive power intensities of the fourth lens and the sixth lens can be adjusted, effectively controlling the light path direction, which helps to increase the imaging surface. Among them, the following conditions can also be satisfied: 1.40 < f4 / f6 < 3.00.

[0133] 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 seventh lens is R14, which can satisfy the following conditions: -1.20 < (R5 + R14) / (R5 - R14) < 0. Thereby, the radius of curvature of the object side surface of the third lens and the radius of curvature of the image side surface of the seventh lens can be effectively balanced, which helps to mitigate the aberration caused by the incidence of large-angle light rays. Among them, the following conditions can also be satisfied: -0.80 < (R5 + R14) / (R5 - R14) < -0.05.

[0134] The displacement parallel to the optical axis from the intersection point of the object-side surface of the seventh lens on the optical axis to the maximum effective radius position of the object-side surface of the seventh lens is Sag7R1, and the thickness of the sixth lens on the optical axis is CT6, which can satisfy the following condition: -0.50 < Sag7R1 / CT6 < 0. Thereby, the incident angle of light on the object-side surface of the seventh lens can be controlled, avoiding light divergence caused by too large an incident angle and poor relative illuminance in the periphery. Among them, the following condition can also be satisfied: -0.40 < Sag7R1 / CT6 < -0.10. Please refer to Fig.33 , which is a schematic diagram showing the parameter Sag7R1 in the first embodiment of the present disclosure, wherein the displacement is positive in the image side direction and negative in the object side direction.

[0135] The displacement parallel to the optical axis from the intersection point of the object-side surface of the third lens on the optical axis to the maximum effective radius position of the object-side surface of the third lens is Sag3R1, and the thickness of the third lens on the optical axis is CT3, which can satisfy the following condition: -2.50 < Sag3R1 / CT3 < -0.80. Thereby, the bending degree of the peripheral surface shape of the object side of the third lens can be balanced, which helps to increase the viewing angle and correct aberrations such as distortion. Among them, the following condition can also be satisfied: -2.20 < Sag3R1 / CT3 < -1.00. Please refer to Fig.33 , which is a schematic diagram showing the parameter Sag3R1 in the first embodiment of the present disclosure, wherein the displacement is positive in the image side direction and negative in the object side direction.

[0136] The maximum imaging height of the optical imaging lens group (which can be half of the total diagonal length of the effective sensing area of the electronic photosensitive element) is ImgH, and the maximum effective radius of the image-side surface of the seventh lens is Y7R2, which can satisfy the following condition: 1.20 < ImgH / Y7R2 < 2.50. Thereby, the height of the optical effective radius of the seventh lens and the imaging height can be adjusted, which helps to increase the imaging surface and improve the imaging quality. Among them, the following condition can also be satisfied: 1.40 < ImgH / Y7R2 < 2.00. Please refer to Fig.33 , which is a schematic diagram showing the parameter Y7R2 in the first embodiment of the present disclosure.

[0137] The focal length of the fourth lens is f4, and the focal length of the fifth lens is f5, which can satisfy the following condition: -1.80 < f4 / f5 < -0.20. Thereby, the refractive powers of the fourth lens and the fifth lens can be effectively balanced, which helps to correct aberrations and adjust the viewing angle. Among them, the following condition can also be satisfied: -1.50 < f4 / f5 < -0.40.

[0138] The focal length of the second lens is f2, and the focal length of the fourth lens is f4, which can satisfy the following conditions: -1.00 < f4 / f2 < -0.10. Thereby, the refractive power intensity ratio of the second lens and the fourth lens can be adjusted, which helps to form a wide-angle lens structure, is conducive to receiving light with a large viewing angle and correcting aberration. Among them, the following conditions can also be satisfied: -0.85 < f4 / f2 < -0.40.

[0139] The thickness of the third lens on the optical axis is CT3, and the distance between the fourth lens and the fifth lens on the optical axis is T45, which can satisfy the following conditions: 0.05 < CT3 / T45 < 1.50. Thereby, the thickness of the third lens and the distance between the fourth lens and the fifth lens can be balanced, which helps to increase the design freedom and control the volume of the optical imaging lens group at the same time. Among them, the following conditions can also be satisfied: 0.15 < CT3 / T45 < 1.20.

[0140] The radius of curvature of the object side surface of the fourth lens is R7, and the radius of curvature of the object side surface of the sixth lens is R11, which can satisfy the following conditions: 0 < R11 / R7 < 1.30. Thereby, the radius of curvature of the object side surface of the fourth lens and the radius of curvature of the object side surface of the sixth lens can be adjusted, which helps to control the peripheral light path and effectively converge the light with a large viewing angle. Among them, the following conditions can also be satisfied: 0.10 < R11 / R7 < 1.00.

[0141] According to the optical imaging lens group disclosed in this disclosure, it may further include a diaphragm. The distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, and the distance from the diaphragm to the imaging surface on the optical axis is SL, which can satisfy the following conditions: 2.50 < TL / SL < 5.00. Thereby, the total length of the optical imaging lens group and the distance from the diaphragm position to the imaging surface on the optical axis can be adjusted, which can increase the relative illuminance of the peripheral field of view and increase the viewing angle size. Among them, the following conditions can also be satisfied: 2.75 < TL / SL < 4.50.

[0142] The Abbe number of the third lens is V3, and the Abbe number of the fifth lens is V5, which can satisfy the following conditions: 2.0 < V3 / V5 < 4.0. Thereby, the material configuration of the third lens and the fifth lens can be adjusted, which helps to balance the convergence ability between light of different bands and correct chromatic aberration. Among them, the following conditions can also be satisfied: 2.4 < V3 / V5 < 3.5.

[0143] The focal length of the optical imaging lens group is f, the focal length of the second lens is f2, the focal length of the fifth lens is f5, and the focal length of the seventh lens is f7. The following conditions can be satisfied: 1.00 < (|f / f2| + |f / f5|) / |f / f7| < 3.60. Thereby, the refractive powers of the second lens, the fifth lens, and the seventh lens can be adjusted, which helps to balance the convergence or divergence of large-angle incident light, thus improving the light-gathering quality of the entire field of view. Among them, the following conditions can also be satisfied: 1.20 < (|f / f2| + |f / f5|) / |f / f7| < 3.30.

[0144] The distance between the object-side surface of the fifth lens and the image-side surface of the seventh lens on the optical axis is Dr9r14, and the distance between the second lens and the third lens on the optical axis is T23. The following conditions can be satisfied: 0.10 < Dr9r14 / T23 < 1.65. Thereby, the center thickness of the lens group at the image side and the distance between the second lens and the third lens can be balanced, which helps to maintain the optimal spatial configuration. Among them, the following conditions can also be satisfied: 0.30 < Dr9r14 / T23 < 1.30.

[0145] The distance between the fifth lens and the sixth lens on the optical axis is T56. The following conditions can be satisfied: 0.010 mm < T56 < 0.050 mm. Thereby, a more suitable distance can be maintained between the two aspherical lenses bonded together, avoiding the situation that the adhesive cannot be evenly dispersed to the periphery of the lenses due to being too close between the lenses. Among them, the following conditions can also be satisfied: 0.015 mm < T56 < 0.035 mm.

[0146] The radius of curvature of the image-side surface of the fifth lens is R10, the radius of curvature of the object-side surface of the sixth lens is R11, and the focal length of the optical imaging lens group is f. The following conditions can be satisfied: 0.04 < |R10 - R11|×10 / f < 8.00. Thereby, the bonded surfaces of the two aspherical lenses can be adjusted to have different radii of curvature, which helps to increase the degree of freedom in design. Among them, the following conditions can also be satisfied: 0.10 < |R10 - R11|×10 / f < 5.00.

[0147] The focal length of the optical imaging lens group is f, the focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the focal length of the seventh lens is f7, and the focal length of the i-th lens is fi. The following conditions can be satisfied: 1.00 < Σ|f / fi| < 3.00, where i = 1, 2, 3, 4, 5, 6, and 7. Thereby, the refractive power of the entire optical imaging lens group can be adjusted to facilitate controlling the light path direction and balancing the total length of the optical imaging lens group. Among them, the following conditions can also be satisfied: 1.50 < Σ|f / fi| < 2.75, where i = 1, 2, 3, 4, 5, 6, and 7.

[0148] The thickness of the first lens on the optical axis is CT1, and the thickness of the fifth lens on the optical axis is CT5, which can satisfy the following condition: 0.05 < CT5 / CT1 < 1.10. Thereby, the ratio of the central thickness of the first lens to the central thickness of the fifth lens can be controlled, and adjusting the first lens to have a relatively large central thickness helps to strengthen the mechanical strength of the first lens, and can effectively improve the service life of the electronic product. Among them, the following condition can also be satisfied: 0.10 < CT5 / CT1 < 1.00.

[0149] Each technical feature in the optical imaging lens group disclosed in the present disclosure can be combined and configured to achieve the corresponding effects.

[0150] In the optical imaging lens group disclosed in the present disclosure, the material of the lens can be glass or plastic. If the material of the lens is glass, the degree of freedom of the refractive power configuration of the optical imaging lens group can be increased, and the influence of the external environmental temperature change on imaging can be reduced, and the glass lens can be made by techniques such as grinding or molding. If the lens material is plastic, the production cost can be effectively reduced. In addition, a spherical surface (SPH) or an aspherical surface (ASP) can be set on the lens surface. Among them, the spherical lens can reduce the manufacturing difficulty, and if an aspherical surface is set on the lens surface, more control variables can be obtained thereby, so as to reduce aberration, reduce the number of lenses, and can effectively reduce the total length of the optical imaging lens group disclosed in the present disclosure. Further, the aspherical surface can be made by methods such as plastic injection molding or molding of glass lenses.

[0151] In the optical imaging lens group disclosed in the present disclosure, if the lens surface is an aspherical surface, it means that all or a part of the optically effective area of the lens surface is an aspherical surface.

[0152] In the optical imaging lens group disclosed in the present disclosure, additives can be selectively added to any (or more) lens materials to produce light absorption or light interference effects, so as to change the transmittance of the lens to light of a specific wavelength band, thereby reducing stray light and chromatic aberration. For example: the additive can have the function of filtering light in the wavelength band of 600 nm to 800 nm in the system, so as to help reduce excess red light or infrared light; or it can filter light in the wavelength band of 350 nm to 450 nm to reduce excess blue light or ultraviolet light. Therefore, the additive can avoid the interference of light in a specific wavelength band on imaging. In addition, the additive can be uniformly mixed in the plastic material and made into a lens by injection molding technology. In addition, the additive can also be configured on the coating on the lens surface to provide the above effects.

[0153] In the optical imaging lens assembly disclosed in the present disclosure, if the lens surface is convex and the position of the convex surface is not defined, it means that the convex surface may be located at the near optical axis of the lens surface; if the lens surface is concave and the position of the concave surface is not defined, it means that the concave surface may be located at the near optical axis of the lens surface. If the refractive power or focal length of the lens does not define its regional position, it means that the refractive power or focal length of the lens may be the refractive power or focal length of the lens at the near optical axis.

[0154] In the optical imaging lens assembly disclosed in the present disclosure, the inflection point of the lens surface refers to the intersection point where the curvature of the lens surface changes from positive to negative. The critical point of the lens surface refers to the tangent point on the tangent line between the plane perpendicular to the optical axis and the lens surface, and the critical point is not located on the optical axis.

[0155] In the optical imaging lens assembly disclosed in the present disclosure, the imaging surface of the optical imaging lens assembly can be a plane or a curved surface with any curvature, especially a curved surface with a concave surface facing the object side, depending on the corresponding electronic photosensitive element.

[0156] In the optical imaging lens assembly disclosed in the present disclosure, one or more imaging correction elements (field flattening elements, etc.) can be selectively arranged between the lens closest to the imaging surface on the imaging optical path and the imaging surface to achieve the effect of correcting the image (image bending, etc.). The optical properties of the imaging correction element, such as curvature, thickness, refractive index, position, surface shape (convex or concave, spherical or aspherical, diffractive surface and Fresnel surface, etc.), can be adjusted according to the requirements of the imaging device. Generally speaking, the preferred imaging correction element configuration is to arrange a thin plano-concave element with a concave surface toward the object side close to the imaging surface.

[0157] In the optical imaging lens assembly disclosed in the present disclosure, at least one element having the function of turning the optical path, such as a prism or a reflector, can be selectively arranged between the object and the imaging surface on the imaging optical path, wherein the prism surface or the reflector surface can be a plane, a spherical surface, an aspherical surface or a free-form surface, etc., to provide the optical imaging lens assembly with a higher flexibility in spatial configuration, so that the electronic device is not restricted by the total optical length of the optical imaging lens assembly. For further explanation, please refer to Fig.34 and Fig.35 ,in Fig.34 is a schematic diagram showing a configuration relationship of an optical path turning element in an optical imaging lens assembly according to the present disclosure, and Fig.35 FIG. 2 is a schematic diagram showing another configuration relationship of an optical path turning element in an optical imaging lens assembly according to the present disclosure. Fig.34 and Fig.35As shown, the optical imaging lens assembly can be arranged along an optical path from a subject (not shown) to an imaging surface IMG, and sequentially has a first optical axis OA1, an optical path turning element LF and a second optical axis OA2, wherein the optical path turning element LF can be as shown in FIG. Fig.34 As shown, it is arranged between the object and the lens group LG of the optical imaging lens group, or as shown Fig.35 The figure shows the lens group LG and the imaging surface IMG of the optical imaging lens assembly. Fig.36 , is a schematic diagram illustrating a configuration relationship of two optical path turning elements in an optical imaging lens assembly according to the present disclosure, such as Fig.36 As shown, the optical imaging lens group can also be arranged along the optical path from the object (not shown) to the imaging surface IMG, and has a first optical axis OA1, a first optical path turning element LF1, a second optical axis OA2, a second optical path turning element LF2 and a third optical axis OA3 in sequence, wherein the first optical path turning element LF1 is arranged between the object and the lens group LG of the optical imaging lens group, the second optical path turning element LF2 is arranged between the lens group LG of the optical imaging lens group and the imaging surface IMG, and the traveling direction of the light on the first optical axis OA1 can be as follows: Fig.36 The direction shown is the same as the direction of the light traveling along the third optical axis OA3. The optical imaging lens assembly can also selectively be configured with more than three light path turning elements, and the present disclosure is not limited to the type, quantity and position of the light path turning elements disclosed in the drawings.

[0158] In the optical imaging lens assembly disclosed in the present disclosure, at least one aperture stop may be provided, which may be located before the first lens, between each lens, or after the last lens. The aperture stop may be a glare stop or a field stop, etc., which may be used to reduce stray light and help improve image quality.

[0159] In the optical imaging lens assembly disclosed in the present disclosure, the aperture can be configured as a front aperture or a center aperture. The front aperture means that the aperture is set between the object and the first lens, and the center aperture means that the aperture is set between the first lens and the imaging surface. If the aperture is a front aperture, the exit pupil can be at a longer distance from the imaging surface, so that it has a telecentric effect and can increase the efficiency of the CCD or CMOS of the electronic photosensitive element in receiving the image; if it is a center aperture, it helps to expand the field of view of the optical imaging lens assembly.

[0160] The present disclosure may appropriately set a variable aperture element, which may be a mechanical component or a light control element, which can control the size and shape of the aperture by electricity or electrical signals. The mechanical component may include movable parts such as a blade set and a shielding plate; the light control element may include a filter element, an electrochromic material, a liquid crystal layer and other shielding materials. The variable aperture element can enhance the image adjustment capability by controlling the amount of light entering the image or the exposure time. In addition, the variable aperture element may also be the aperture of the present disclosure, which can adjust the image quality, such as the depth of field or the exposure speed, by changing the aperture value.

[0161] The present disclosure may appropriately set one or more optical elements to limit the form of light passing through the optical imaging lens set. The optical element may be a filter, a polarizer, etc., but the present disclosure is not limited thereto. In addition, the optical element may be a single-piece element, a composite component, or presented in the form of a film, etc., but the present disclosure is not limited thereto. The optical element may be placed at the object end, the image end, or between the lenses of the optical imaging lens set to control the passage of a specific form of light, thereby meeting the application requirements.

[0162] The optical imaging lens assembly disclosed in the present disclosure may include at least one optical lens, optical element or carrier, at least one surface of which has a low-reflection layer, and the low-reflection layer can effectively reduce the stray light generated by the reflection of light at the interface. The low-reflection layer can be arranged on the non-effective area of ​​the object side surface or the image side surface of the optical lens, or the connecting surface between the object side surface and the image side surface; the optical element can be a shading element, an annular spacer element, a lens barrel element, a flat glass (Cover glass), a blue glass (Blue glass), a filter element (Filter, Color filter), an optical path turning element (reflection element), a prism or a mirror, etc.; the carrier can be a lens assembly lens mount, a micro lens (Micro lens) arranged on a photosensitive element, the periphery of a photosensitive element substrate, or a glass sheet used to protect a photosensitive element, etc.

[0163] In the optical imaging lens assembly disclosed in the present disclosure, the object side and the image side are determined according to the direction of the optical axis, and the data on the optical axis are calculated along the optical axis. If the optical axis is turned through an optical path turning element, the data on the optical axis is also calculated along the optical axis.

[0164] According to the above implementation modes, specific embodiments are proposed below and described in detail with reference to the accompanying drawings.

[0165] <First Embodiment>

[0166] Please refer to Figure 1 to Figure 2 ,in Figure 1 A schematic diagram of an imaging device according to a first embodiment of the present disclosure is shown. Figure 2From left to right are the spherical aberration, astigmatism and distortion curves of the first embodiment. Figure 1 It can be seen that the imaging device 1 includes an optical imaging lens group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens group includes a first lens E1, a second lens E2, a third lens E3, an aperture S1, a fourth lens E4, an aperture ST, a fifth lens E5, a sixth lens E6, an aperture S2, a seventh lens E7, a filter element (Filter) E8 and an imaging surface IMG in order from the object side to the image side along the optical path. Among them, the electronic photosensitive element IS is disposed on the imaging surface IMG. The optical imaging lens group includes seven lenses (E1, E2, E3, E4, E5, E6, E7), and there is no other interpolated lens between the lenses.

[0167] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0168] The second lens E2 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has an inflection point.

[0169] The third lens E3 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, and its image-side surface has an inflection point.

[0170] The fourth lens E4 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, both surfaces are aspherical, and its object-side surface has an inflection point.

[0171] The fifth lens E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, and its image-side surface has an inflection point.

[0172] The sixth lens E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, and its object-side surface is bonded to the image-side surface of the fifth lens E5.

[0173] The seventh lens element E7 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its image-side surface has an inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0174] The filter element E8 is made of glass and is disposed between the seventh lens element E7 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens assembly.

[0175] The curve equations of the aspheric surfaces of the above lenses are expressed as follows:

[0176]

[0177] X: displacement parallel to the optical axis from the intersection of the aspheric surface and the optical axis to the point on the aspheric surface at a distance Y from the optical axis;

[0178] Y: the vertical distance between the point on the aspheric curve and the optical axis;

[0179] R: radius of curvature;

[0180] k: cone coefficient; and

[0181] Ai: i-th order aspheric coefficient.

[0182] In the optical imaging lens assembly of the first embodiment, the focal length of the optical imaging lens assembly is f, the aperture value of the optical imaging lens assembly is Fno, and half of the maximum viewing angle in the optical imaging lens assembly is HFOV, and its values ​​are as follows: f=1.40 millimeters (mm), Fno=1.93, HFOV=95.0 degrees (deg.).

[0183] Half of the maximum viewing angle in the optical imaging lens assembly is HFOV, which satisfies the following condition: 1 / |tan(HFOV)|=0.087.

[0184] The distance between the object side surface of the first lens E1 and the imaging plane IMG on the optical axis is TL, and the distance between the aperture ST and the imaging plane IMG on the optical axis is SL, which satisfies the following condition: TL / SL=3.44.

[0185] The focal length of the optical imaging lens assembly is f, the focal length of the second lens element E2 is f2, the focal length of the fifth lens element E5 is f5, and the focal length of the seventh lens element E7 is f7, which satisfies the following condition: (|f / f2|+|f / f5|) / |f / f7|=2.72.

[0186] The focal length of the optical imaging lens group is f, the focal length of the first lens E1 is f1, the focal length of the second lens E2 is f2, the focal length of the third lens E3 is f3, the focal length of the fourth lens E4 is f4, the focal length of the fifth lens E5 is f5, the focal length of the sixth lens E6 is f6, the focal length of the seventh lens E7 is f7, and the focal length of the i-th lens is fi, which satisfies the following condition: Σ|f / fi|=2.31, where i=1, 2, 3, 4, 5, 6 and 7.

[0187] The focal length of the second lens E2 is f2, and the focal length of the fourth lens E4 is f4, which satisfy the following condition: f4 / f2=-0.64.

[0188] The focal length of the fourth lens E4 is f4, and the focal length of the fifth lens E5 is f5, which satisfy the following condition: f4 / f5=-1.05.

[0189] The focal length of the fourth lens E4 is f4, and the focal length of the sixth lens E6 is f6, which satisfy the following condition: f4 / f6=1.99.

[0190] The focal length of the fifth lens E5 is f5, and the focal length of the seventh lens E7 is f7, which satisfy the following condition: f5 / f7=0.59.

[0191] The focal length of the fifth lens E5 is f5, and the focal length of the sixth lens E6 is f6, which satisfy the following condition: |f6 / f5|=0.53.

[0192] The curvature radius of the object-side surface of the first lens E1 is R1, and the curvature radius of the object-side surface of the third lens E3 is R5, which satisfy the following condition: (R1+R5) / (R1-R5)=0.80.

[0193] The radius of curvature of the object-side surface of the third lens E3 is R5, and the radius of curvature of the image-side surface of the seventh lens E7 is R14, which satisfy the following condition: (R5+R14) / (R5-R14)=-0.52.

[0194] The radius of curvature of the object-side surface of the fourth lens E4 is R7, and the radius of curvature of the object-side surface of the seventh lens E7 is R13, which satisfy the following condition: (R7+R13) / (R7-R13)=-0.57.

[0195] The object-side surface of the third lens E3 has a curvature radius of R5, and the image-side surface of the fifth lens E5 has a curvature radius of R10, which satisfy the following condition: |R5 / R10|=0.91.

[0196] The radius of curvature of the object-side surface of the fourth lens E4 is R7, and the radius of curvature of the object-side surface of the sixth lens E6 is R11, which satisfy the following condition: R11 / R7=0.58.

[0197] The curvature radius of the image-side surface of the fifth lens E5 is R10, the curvature radius of the object-side surface of the sixth lens E6 is R11, and the focal length of the optical imaging lens assembly is f, which satisfies the following condition: |R10-R11|×10 / f=0.21.

[0198] The sum of the thicknesses of all lenses in the optical imaging lens set on the optical axis is ΣCT, and the sum of the spacing distances of all adjacent lenses in the optical imaging lens set on the optical axis is ΣAT, which satisfies the following condition: ΣCT / ΣAT=0.94. In this embodiment, ΣCT is the sum of the thicknesses of the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, and the seventh lens E7 on the optical axis. In this embodiment, ΣAT is the sum of the spacing distances of any two adjacent lenses among the first lens E1, the second lens E2, the third lens E3, the fourth lens E4, the fifth lens E5, the sixth lens E6, and the seventh lens E7 on the optical axis. In this embodiment, the spacing distance of two adjacent lenses on the optical axis refers to the distance between two adjacent mirror surfaces of the two adjacent lenses on the optical axis.

[0199] The distance on the optical axis from the object side surface of the first lens E1 to the image side surface of the fourth lens E4 is Dr1r8, and the distance on the optical axis from the object side surface of the fifth lens E5 to the image side surface of the seventh lens E7 is Dr9r14, which satisfies the following condition: Dr1r8 / Dr9r14=5.50.

[0200] The distance on the optical axis from the object-side surface of the fifth lens E5 to the image-side surface of the seventh lens E7 is Dr9r14, and the distance between the second lens E2 and the third lens E3 on the optical axis is T23, which satisfies the following condition: Dr9r14 / T23=0.63.

[0201] The distance between the second lens E2 and the third lens E3 on the optical axis is T23, and the distance between the image-side surface of the seventh lens E7 and the imaging plane IMG on the optical axis is BL, which satisfies the following condition: T23 / BL=1.04.

[0202] The thickness of the first lens E1 on the optical axis is CT1, and the thickness of the seventh lens E7 on the optical axis is CT7, which satisfy the following condition: CT1 / CT7=6.58.

[0203] The thickness of the third lens E3 on the optical axis is CT3, and the distance between the second lens E2 and the third lens E3 on the optical axis is T23, which satisfies the following condition: CT3 / T23=0.17.

[0204] The thickness of the third lens E3 on the optical axis is CT3, and the thickness of the fourth lens E4 on the optical axis is CT4, which satisfy the following condition: CT3 / CT4=0.32.

[0205] The thickness of the third lens E3 on the optical axis is CT3, and the distance between the fourth lens E4 and the fifth lens E5 on the optical axis is T45, which satisfies the following condition: CT3 / T45=0.39.

[0206] The thickness of the first lens E1 on the optical axis is CT1, and the thickness of the fifth lens E5 on the optical axis is CT5, which satisfy the following condition: CT5 / CT1=0.13.

[0207] The distance between the third lens E3 and the fourth lens E4 on the optical axis is T34, and the distance between the fourth lens E4 and the fifth lens E5 on the optical axis is T45, which satisfies the following condition: T34 / T45=0.05.

[0208] The distance between the fifth lens E5 and the sixth lens E6 on the optical axis is T56, which satisfies the following condition: T56=0.029 mm.

[0209] The Abbe number of the third lens E3 is V3, and the Abbe number of the fifth lens E5 is V5, which satisfy the following condition: V3 / V5=2.87.

[0210] The Abbe number of the seventh lens E7 is V7, which satisfies the following condition: V7=21.8.

[0211] The displacement parallel to the optical axis from the intersection of the object side surface of the third lens E3 on the optical axis to the maximum effective radius position of the object side surface of the third lens E3 is Sag3R1, and the thickness of the third lens E3 on the optical axis is CT3, which satisfies the following condition: Sag3R1 / CT3=-1.83.

[0212] The displacement parallel to the optical axis from the intersection of the object-side surface of the seventh lens E7 on the optical axis to the maximum effective radius position of the object-side surface of the seventh lens E7 is Sag7R1, and the thickness of the sixth lens E6 on the optical axis is CT6, which satisfies the following condition: Sag7R1 / CT6=-0.30.

[0213] The maximum imaging height of the optical imaging lens assembly is ImgH, and the maximum effective radius of the image-side surface of the seventh lens E7 is Y7R2, which satisfies the following condition: ImgH / Y7R2=1.71.

[0214] Please refer to Table 1A and Table 1B below.

[0215]

[0216]

[0217]

[0218] Table 1A Figure 1The first embodiment has detailed structural data, wherein the units of the radius of curvature, thickness and focal length are in millimeters (mm), and surfaces 0 to 20 represent the surfaces from the object side to the image side in sequence. Table 1B shows the aspheric surface data of the first embodiment, wherein k is the cone coefficient in the aspheric curve equation, and A4 to A24 represent the 4th to 24th order aspheric surface coefficients of each surface. In addition, the following tables of the embodiments correspond to the schematic diagrams and aberration curves of the embodiments, and the definitions of the data in the tables are the same as those in Tables 1A and 1B of the first embodiment, and are not repeated here.

[0219] <Second Embodiment>

[0220] Please refer to Figure 3 to Figure 4 ,in Figure 3 A schematic diagram of an imaging device according to a second embodiment of the present disclosure is shown. Figure 4 From left to right are the spherical aberration, astigmatism and distortion curves of the second embodiment. Figure 3 It can be seen that the imaging device 2 includes an optical imaging lens group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens group includes a first lens E1, a second lens E2, a third lens E3, an aperture S1, a fourth lens E4, an aperture ST, a fifth lens E5, a sixth lens E6, an aperture S2, a seventh lens E7, a filter element E8 and an imaging surface IMG in order from the object side to the image side along the optical path. Among them, the electronic photosensitive element IS is disposed on the imaging surface IMG. The optical imaging lens group includes seven lenses (E1, E2, E3, E4, E5, E6, E7), and there are no other lenses inserted between the lenses.

[0221] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0222] The second lens E2 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, and its object-side surface has a concave critical point at an off-axis position.

[0223] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its object-side surface has two inflection points, and its image-side surface has two inflection points.

[0224] The fourth lens E4 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, its image-side surface has an inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0225] The fifth lens E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has an inflection point.

[0226] The sixth lens E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and its object-side surface is bonded to the image-side surface of the fifth lens E5.

[0227] The seventh lens element E7 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its image-side surface has an inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0228] The filter element E8 is made of glass and is disposed between the seventh lens element E7 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens assembly.

[0229] Please refer to Table 2A and Table 2B below.

[0230]

[0231]

[0232]

[0233] 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 described in Table 2C are the same as those in the first embodiment and are not repeated here.

[0234]

[0235] <Third Embodiment>

[0236] Please refer to Figures 5 and 6 ,in Figure 5 A schematic diagram of an imaging device according to a third embodiment of the present disclosure is shown. Figure 6 From left to right are the spherical aberration, astigmatism and distortion curves of the third embodiment. Figure 5It can be seen that the imaging device 3 includes an optical imaging lens group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens group includes a first lens E1, a second lens E2, a third lens E3, an aperture S1, a fourth lens E4, an aperture ST, a fifth lens E5, a sixth lens E6, an aperture S2, a seventh lens E7, a filter element E8 and an imaging surface IMG in order from the object side to the image side along the optical path. Among them, the electronic photosensitive element IS is disposed on the imaging surface IMG. The optical imaging lens group includes seven lenses (E1, E2, E3, E4, E5, E6, E7), and there are no other lenses inserted between the lenses.

[0237] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0238] The second lens E2 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, and its object-side surface has a concave critical point at an off-axis position.

[0239] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is convex near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, its image-side surface has an inflection point, and its image-side surface has a concave critical point at an off-axis position.

[0240] The fourth lens E4 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, both surfaces are aspherical, and its object-side surface has an inflection point.

[0241] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0242] The sixth lens E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and its object-side surface is bonded to the image-side surface of the fifth lens E5.

[0243] The seventh lens element E7 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its image-side surface has an inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0244] The filter element E8 is made of glass and is disposed between the seventh lens element E7 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens assembly.

[0245] Please refer to Table 3A and Table 3B below.

[0246]

[0247]

[0248]

[0249]

[0250] 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 described in Table 3C are the same as those in the first embodiment and are not repeated here.

[0251]

[0252]

[0253] <Fourth Embodiment>

[0254] Please refer to Figures 7 and 8 ,in Figure 7 A schematic diagram of an imaging device according to a fourth embodiment of the present disclosure is shown. Figure 8 From left to right are the spherical aberration, astigmatism and distortion curves of the fourth embodiment. Figure 7 It can be seen that the imaging device 4 includes an optical imaging lens group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens group includes a first lens E1, a second lens E2, a third lens E3, an aperture S1, a fourth lens E4, an aperture ST, a fifth lens E5, a sixth lens E6, an aperture S2, a seventh lens E7, a filter element E8 and an imaging surface IMG in order from the object side to the image side along the optical path. Among them, the electronic photosensitive element IS is disposed on the imaging surface IMG. The optical imaging lens group includes seven lenses (E1, E2, E3, E4, E5, E6, E7), and there is no other interpolated lens between the lenses.

[0255] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are spherical.

[0256] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its object-side surface has three inflection points, its image-side surface has one inflection point, and its object-side surface has a convex critical point at an off-axis position.

[0257] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, its image-side surface has two inflection points, and its image-side surface has a concave critical point and a convex critical point at an off-axis position.

[0258] The fourth lens E4 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical.

[0259] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0260] The sixth lens E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, both surfaces are aspherical, its image-side surface has an inflection point, and its object-side surface is bonded to the image-side surface of the fifth lens E5.

[0261] The seventh lens element E7 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its image-side surface has an inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0262] The filter element E8 is made of glass and is disposed between the seventh lens element E7 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens assembly.

[0263] Please refer to Table 4A and Table 4B below.

[0264]

[0265]

[0266]

[0267] 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 described in Table 4C are the same as those in the first embodiment and are not repeated here.

[0268]

[0269]

[0270] <Fifth Embodiment>

[0271] Please refer to Figures 9 and 10 ,in Fig. 9A schematic diagram of an imaging device according to a fifth embodiment of the present disclosure is shown. Fig.10 From left to right are the spherical aberration, astigmatism and distortion curves of the fifth embodiment. Fig. 9 It can be seen that the imaging device 5 includes an optical imaging lens group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens group includes a first lens E1, a second lens E2, a third lens E3, an aperture S1, a fourth lens E4, an aperture ST, a fifth lens E5, a sixth lens E6, an aperture S2, a seventh lens E7, a filter element E8 and an imaging surface IMG in order from the object side to the image side along the optical path. Among them, the electronic photosensitive element IS is disposed on the imaging surface IMG. The optical imaging lens group includes seven lenses (E1, E2, E3, E4, E5, E6, E7), and there is no other interpolated lens between the lenses.

[0272] The first lens E1 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, and its object-side surface has a convex critical point at an off-axis position.

[0273] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, its image-side surface is concave near the optical axis, its object-side surfaces are all aspherical, its object-side surface has an inflection point, and its object-side surface has a concave critical point at an off-axis position.

[0274] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, and its image-side surface has an inflection point.

[0275] The fourth lens E4 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, both surfaces are aspherical, and its object-side surface has an inflection point.

[0276] The fifth lens E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has an inflection point.

[0277] The sixth lens E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical. Its object-side surface is bonded to the image-side surface of the fifth lens E5.

[0278] The seventh lens element E7 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its image-side surface has an inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0279] The filter element E8 is made of glass and is disposed between the seventh lens element E7 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens assembly.

[0280] Please refer to Table 5A and Table 5B below.

[0281]

[0282]

[0283]

[0284] 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 described in Table 5C are the same as those in the first embodiment and are not repeated here.

[0285]

[0286] <Sixth Embodiment>

[0287] Please refer to Figure 11 to Figure 12 ,in Fig.11 A schematic diagram of an imaging device according to a sixth embodiment of the present disclosure is shown. Fig.12 From left to right are the spherical aberration, astigmatism and distortion curves of the sixth embodiment. Fig.11 It can be seen that the imaging device 6 includes an optical imaging lens group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens group includes a first lens E1, a second lens E2, a third lens E3, an aperture S1, a fourth lens E4, an aperture ST, a fifth lens E5, a sixth lens E6, an aperture S2, a seventh lens E7, a filter element E8 and an imaging surface IMG in order from the object side to the image side along the optical path. Among them, the electronic photosensitive element IS is disposed on the imaging surface IMG. The optical imaging lens group includes seven lenses (E1, E2, E3, E4, E5, E6, E7), and there is no other interpolated lens between the lenses.

[0288] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are spherical.

[0289] The second lens E2 has negative refractive power and is made of glass. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are spherical.

[0290] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is convex near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, its image-side surface has an inflection point, and its image-side surface has a concave critical point at an off-axis position.

[0291] The fourth lens E4 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, both surfaces are aspherical, and its object-side surface has an inflection point.

[0292] The fifth lens E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has an inflection point.

[0293] The sixth lens E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and its object-side surface is bonded to the image-side surface of the fifth lens E5.

[0294] The seventh lens element E7 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its image-side surface has an inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0295] The filter element E8 is made of glass and is disposed between the seventh lens element E7 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens assembly.

[0296] Please refer to Table 6A and Table 6B below.

[0297]

[0298]

[0299]

[0300]

[0301] 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 described in Table 6C are the same as those in the first embodiment and are not repeated here.

[0302]

[0303]

[0304] <Seventh Embodiment>

[0305] Please refer to Figure 13 to Figure 14 ,in Fig.13 FIG. 1 is a schematic diagram of an imaging device according to a seventh embodiment of the present disclosure. Fig.14 From left to right are the spherical aberration, astigmatism and distortion curves of the seventh embodiment. Fig.13 It can be seen that the imaging device 7 includes an optical imaging lens group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens group includes a first lens E1, a second lens E2, a third lens E3, an aperture S1, a fourth lens E4, an aperture ST, a fifth lens E5, a sixth lens E6, an aperture S2, a seventh lens E7, a filter element E8 and an imaging surface IMG in order from the object side to the image side along the optical path. Among them, the electronic photosensitive element IS is disposed on the imaging surface IMG. The optical imaging lens group includes seven lenses (E1, E2, E3, E4, E5, E6, E7), and there are no other lenses inserted between the lenses.

[0306] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0307] The second lens E2 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, and its object-side surface has a concave critical point at an off-axis position.

[0308] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, and its image-side surface has an inflection point.

[0309] The fourth lens E4 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, both surfaces are aspherical, and its object-side surface has an inflection point.

[0310] The fifth lens E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has an inflection point.

[0311] The sixth lens E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, and both surfaces are aspherical.

[0312] The seventh lens element E7 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its image-side surface has an inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0313] The filter element E8 is made of glass and is disposed between the seventh lens element E7 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens assembly.

[0314] Please refer to Table 7A and Table 7B below.

[0315]

[0316]

[0317]

[0318] In the seventh embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in Table 7C are the same as those in the first embodiment and are not repeated here.

[0319]

[0320] <Eighth Embodiment>

[0321] Please refer to Figure 15 to Figure 16 ,in Fig.15 FIG. 1 is a schematic diagram of an imaging device according to an eighth embodiment of the present disclosure. Fig.16 From left to right are the spherical aberration, astigmatism and distortion curves of the eighth embodiment. Fig.15 It can be seen that the imaging device 8 includes an optical imaging lens group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens group includes a first lens E1, a second lens E2, a third lens E3, an aperture S1, a fourth lens E4, an aperture ST, a fifth lens E5, a sixth lens E6, an aperture S2, a seventh lens E7, a filter element E8 and an imaging surface IMG in order from the object side to the image side along the optical path. Among them, the electronic photosensitive element IS is disposed on the imaging surface IMG. The optical imaging lens group includes seven lenses (E1, E2, E3, E4, E5, E6, E7), and there are no other lenses inserted between the lenses.

[0322] The first lens E1 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0323] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has an inflection point.

[0324] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its object-side surface has an inflection point, and its image-side surface has an inflection point.

[0325] The fourth lens E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical.

[0326] The fifth lens E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has an inflection point.

[0327] The sixth lens E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and its object-side surface is bonded to the image-side surface of the fifth lens E5.

[0328] The seventh lens E7 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, its image-side surface has an inflection point, its object-side surface has a concave critical point at an off-axis position, and its image-side surface has a convex critical point at an off-axis position.

[0329] The filter element E8 is made of glass and is disposed between the seventh lens element E7 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens assembly.

[0330] Please refer to Table 8A and Table 8B below.

[0331]

[0332]

[0333]

[0334]

[0335] In the eighth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in Table 8C are the same as those in the first embodiment and are not repeated here.

[0336]

[0337]

[0338] <Ninth Embodiment>

[0339] Please refer to Figure 17 to Figure 18 ,in Fig.17 FIG. 1 is a schematic diagram of an imaging device according to a ninth embodiment of the present disclosure. Fig.18 From left to right are the spherical aberration, astigmatism and distortion curves of the ninth embodiment. Fig.17 It can be seen that the imaging device 9 includes an optical imaging lens group (not labeled) and an electronic photosensitive element IS. The optical imaging lens group includes a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, an aperture ST, a fifth lens E5, a sixth lens E6, a stop S1, a seventh lens E7, a filter element E8 and an imaging surface IMG in order from the object side to the image side along the optical path. Among them, the electronic photosensitive element IS is disposed on the imaging surface IMG. The optical imaging lens group includes seven lenses (E1, E2, E3, E4, E5, E6, E7), and there are no other lenses inserted between the lenses.

[0340] The first lens E1 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are spherical.

[0341] The second lens E2 has negative refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are spherical.

[0342] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical, and its image-side surface has an inflection point.

[0343] The fourth lens E4 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, both surfaces are aspherical, and its object-side surface has an inflection point.

[0344] The fifth lens element E5 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical.

[0345] The sixth lens E6 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, its image-side surface is convex near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, its image-side surface has an inflection point, and its object-side surface is bonded to the image-side surface of the fifth lens E5.

[0346] The seventh lens E7 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, its image-side surface is concave near the optical axis, both surfaces are aspherical, its object-side surface has an inflection point, its image-side surface has an inflection point, its object-side surface has a concave critical point at an off-axis position, and its image-side surface has a convex critical point at an off-axis position.

[0347] The filter element E8 is made of glass and is disposed between the seventh lens element E7 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens assembly.

[0348] Please refer to Table 9A and Table 9B below.

[0349]

[0350]

[0351]

[0352] In the ninth embodiment, the curve equation of the aspheric surface is expressed in the same form as in the first embodiment. In addition, the definitions described in Table 9C are the same as those in the first embodiment and are not repeated here.

[0353]

[0354]

[0355] <Tenth Embodiment>

[0356] Please refer to Fig.19 , is a three-dimensional schematic diagram of an imaging device according to the tenth embodiment of the present disclosure. In this embodiment, the imaging device 100 is a camera module. The imaging device 100 includes an imaging lens 101, a driving device 102, an electronic photosensitive element 103, and an image stabilization module 104. The imaging lens 101 includes the optical imaging lens group of the first embodiment described above, a lens barrel (not separately labeled) for carrying the optical imaging lens group, and a support device (Holder Member, not separately labeled). The imaging lens 101 can also be configured with the optical imaging lens group of other embodiments described above, and the present disclosure is not limited thereto. The imaging device 100 uses the imaging lens 101 to focus light to generate an image, and cooperates with the driving device 102 to focus the image, and finally forms an image on the electronic photosensitive element 103 and can be output as image data.

[0357] The driving device 102 may have an auto-focus function, and its driving method may use a driving system such as a voice coil motor (VCM), a micro electro-mechanical system (MEMS), a piezoelectric system (Piezoelectric), and a shape memory alloy (Shape Memory Alloy). The driving device 102 allows the imaging lens 101 to obtain a better imaging position, and can provide a clear image of the subject at different object distances. In addition, the imaging device 100 is equipped with an electronic photosensitive element 103 (such as CMOS, CCD) with good sensitivity and low noise, which is arranged on the imaging surface of the optical imaging lens group, and can truly present the good imaging quality of the optical imaging lens group.

[0358] The image stabilization module 104 is, for example, an accelerometer, a gyroscope, or a Hall Effect Sensor. The driving device 102 can be used in conjunction with the image stabilization module 104 to serve as an optical image stabilization (OIS) device, which can compensate for the blurry image caused by shaking at the moment of shooting by adjusting the changes in different axes of the imaging lens 101, or use the image compensation technology in the imaging software to provide an electronic image stabilization (EIS) function, thereby further improving the image quality of dynamic and low-light scene shooting.

[0359] <Eleventh Embodiment>

[0360] Please refer to Figure 20 to Figure 21 ,in Fig. 20 A three-dimensional schematic diagram of one side of an electronic device according to an eleventh embodiment of the present disclosure is shown, and Fig.21 Draw Fig. 20 A three-dimensional schematic diagram of the other side of the electronic device.

[0361] In this embodiment, the electronic device 200 is a smart phone. The electronic device 200 includes the imaging device 100, the imaging device 100a, the imaging device 100b, the imaging device 100c and the display module 201 of the tenth embodiment. Fig. 20 As shown, the imaging device 100, the imaging device 100a and the imaging device 100b are all disposed on the same side of the electronic device 200 and are all single-focus. Fig.21As shown, the image capturing device 100c and the display module 201 are both disposed on the other side of the electronic device 200. The image capturing device 100c can be used as a front lens to provide a selfie function, but the present disclosure is not limited thereto. Moreover, the image capturing device 100a, the image capturing device 100b and the image capturing device 100c can all include the optical imaging lens assembly disclosed herein and can all have a structural configuration similar to that of the image capturing device 100. Specifically, the image capturing device 100a, the image capturing device 100b and the image capturing device 100c can each include an imaging lens, a driving device, an electronic photosensitive element and an image stabilization module. Among them, the imaging lens of the image capturing device 100a, the image capturing device 100b and the image capturing device 100c can each include, for example, an optical lens assembly of the optical imaging lens assembly disclosed herein, a lens barrel for carrying the optical lens assembly and a supporting device.

[0362] The imaging device 100 is a wide-angle imaging device, the imaging device 100a is a telephoto imaging device, the imaging device 100b is an ultra-wide-angle imaging device, and the imaging device 100c is a wide-angle imaging device. The imaging devices 100, 100a, and 100b of this embodiment have different viewing angles, so that the electronic device 200 can provide different magnifications to achieve an optical zoom shooting effect. In addition, Fig.21 As shown, the opening of the image capturing device 100c can be non-circular, and the lens barrel or lens in the image capturing device 100c can be cut at the outer diameter to have a cut edge to match the non-circular opening. In this way, the single-axis length of the image capturing device 100c can be further reduced, so as to reduce the volume of the lens, increase the area ratio of the display module 201 relative to the electronic device 200, and reduce the thickness of the electronic device 200, further achieving module miniaturization. The above-mentioned electronic device 200 is taken as an example including a plurality of image capturing devices 100, 100a, 100b, and 100c, but the number and configuration of the image capturing devices are not intended to limit the present disclosure.

[0363] <Twelfth Embodiment>

[0364] Please refer to Figure 22 to Figure 24 ,in Fig. 22 A three-dimensional schematic diagram showing one side of an electronic device according to a twelfth embodiment of the present disclosure is shown. Fig.23 Draw Fig. 22 A three-dimensional schematic diagram of the other side of the electronic device, and Fig.24 Draw Fig. 22 A system block diagram of an electronic device.

[0365] In the present embodiment, the electronic device 300 is a smart phone. The electronic device 300 comprises the imaging device 100, the imaging device 100d, the imaging device 100e, the imaging device 100f, the imaging device 100g, the flash module 301, the focus assisting module 302, the image signal processor 303 (Image Signal Processor), the display module 304 and the image software processor 305 of the tenth embodiment. The imaging device 100 and the imaging device 100d are both disposed on the same side of the electronic device 300. The focus assisting module 302 can adopt a laser ranging or a time of flight (ToF) module, but the present disclosure is not limited thereto. The imaging device 100e, the imaging device 100f, the imaging device 100g and the display module 304 are all disposed on the other side of the electronic device 300, and the display module 304 can be a user interface, so that the imaging device 100e, the imaging device 100f and the imaging device 100g can be used as a front lens to provide a Selfie function, but the present disclosure is not limited thereto. Moreover, the imaging device 100d, the imaging device 100e, the imaging device 100f and the imaging device 100g can all include the optical imaging lens assembly of the present disclosure and can all have a similar structural configuration to the imaging device 100. In detail, the imaging device 100d, the imaging device 100e, the imaging device 100f and the imaging device 100g can each include an imaging lens, a driving device, an electronic photosensitive element and an image stabilization module. The imaging lenses of the imaging devices 100d, 100e, 100f and 100g may each include an optical lens assembly such as the optical imaging lens assembly disclosed herein, a lens barrel for carrying the optical lens assembly and a supporting device.

[0366] The imaging device 100 is a wide-angle imaging device, the imaging device 100d is an ultra-wide-angle imaging device, the imaging device 100e is a wide-angle imaging device, the imaging device 100f is an ultra-wide-angle imaging device, and the imaging device 100g is a time-of-flight ranging imaging device. The imaging device 100 and the imaging device 100d of this embodiment have different viewing angles, so that the electronic device 300 can provide different magnifications to achieve an optical zoom shooting effect. In addition, the imaging device 100g can obtain depth information of the image. The above-mentioned electronic device 300 is taken as an example including a plurality of imaging devices 100, 100d, 100e, 100f, and 100g, but the number and configuration of the imaging devices are not intended to limit the present disclosure.

[0367] When the user takes a picture of the object 306, the electronic device 300 uses the image capturing device 100 or the image capturing device 100d to focus and capture the image, activates the flash module 301 for fill light, and uses the object distance information of the object 306 provided by the focus assist module 302 for rapid focusing, and the image signal processor 303 performs image optimization processing to further improve the image quality produced by the optical imaging lens group. The focus assist module 302 can use an infrared or laser focus assist system to achieve rapid focusing. In addition, the electronic device 300 can also use the image capturing device 100e, the image capturing device 100f or the image capturing device 100g for shooting. The display module 304 can use a touch screen to cooperate with the diverse functions of the image software processor 305 to perform image shooting and image processing (or a physical shooting button can be used for shooting). The image processed by the image software processor 305 can be displayed on the display module 304.

[0368] <Thirteenth Embodiment>

[0369] Please refer to Fig.25 , is a three-dimensional schematic diagram illustrating one side of an electronic device according to the thirteenth embodiment of the present disclosure.

[0370] In this embodiment, the electronic device 400 is a smart phone. The electronic device 400 includes the imaging device 100, the imaging device 100h, the imaging device 100i, the flash module 401, the focus auxiliary module, the image signal processor, the display module and the image software processor (not shown) of the tenth embodiment. The imaging device 100, the imaging device 100h and the imaging device 100i are all configured on the same side of the electronic device 400, and the display module is configured on the other side of the electronic device 400. Moreover, the imaging device 100h and the imaging device 100i can both include the optical imaging lens assembly disclosed in the present invention and can both have a similar structural configuration as the imaging device 100, which will not be described in detail here.

[0371] The imaging device 100 is a wide-angle imaging device, the imaging device 100h is a telephoto imaging device, and the imaging device 100i is an ultra-wide-angle imaging device. The imaging devices 100, 100h, and 100i of the present embodiment have different viewing angles, so that the electronic device 400 can provide different magnifications to achieve an optical zoom shooting effect. In addition, the imaging device 100h is a telephoto imaging device with an optical path turning element configuration, so that the total length of the imaging device 100h is not limited by the thickness of the electronic device 400. The optical path turning element configuration of the imaging device 100h may, for example, have a configuration similar to Figure 34 to Figure 36 The structure of Figure 34 to Figure 36The electronic device 400 is described above as including a plurality of imaging devices 100, 100h, 100i, but the number and configuration of the imaging devices are not intended to limit the present disclosure. When a user photographs a subject, the electronic device 400 uses the imaging device 100, the imaging device 100h, or the imaging device 100i to focus light and capture an image, activates the flash module 401 for fill light, and performs subsequent processing in a manner similar to the aforementioned embodiment, which is not described here.

[0372] <Fourteenth Embodiment>

[0373] Please refer to Fig.26 , is a three-dimensional schematic diagram illustrating one side of an electronic device according to the fourteenth embodiment of the present disclosure.

[0374] In the present embodiment, the electronic device 500 is a smart phone. The electronic device 500 comprises the imaging device 100, the imaging device 100j, the imaging device 100k, the imaging device 100m, the imaging device 100n, the imaging device 100p, the imaging device 100q, the imaging device 100r, the imaging device 100s, the flash module 501, the focus assist module, the image signal processor, the display module and the image software processor (not shown) of the tenth embodiment. The imaging device 100, the imaging device 100j, the imaging device 100k, the imaging device 100m, the imaging device 100n, the imaging device 100p, the imaging device 100q, the imaging device 100r and the imaging device 100s are all disposed on the same side of the electronic device 500, and the display module is disposed on the other side of the electronic device 500. Furthermore, the imaging device 100j, the imaging device 100k, the imaging device 100m, the imaging device 100n, the imaging device 100p, the imaging device 100q, the imaging device 100r and the imaging device 100s may all include the optical imaging lens assembly disclosed herein and may all have a similar structural configuration to the imaging device 100, which will not be described in detail herein.

[0375] The imaging device 100 is a wide-angle imaging device, the imaging device 100j is a telephoto imaging device, the imaging device 100k is a telephoto imaging device, the imaging device 100m is a wide-angle imaging device, the imaging device 100n is an ultra-wide-angle imaging device, the imaging device 100p is an ultra-wide-angle imaging device, the imaging device 100q is a telephoto imaging device, the imaging device 100r is a telephoto imaging device, and the imaging device 100s is a time-of-flight ranging imaging device. The imaging devices 100, 100j, 100k, 100m, 100n, 100p, 100q and 100r of the present embodiment have different viewing angles, so that the electronic device 500 can provide different magnifications to achieve an optical zoom shooting effect. In addition, the imaging device 100j and the imaging device 100k may be telephoto imaging devices with an optical path deflection element. The optical path deflection element configuration of the imaging device 100j and the imaging device 100k may have a similar configuration. Figure 34 to Figure 36 The structure of Figure 34 to Figure 36 The description thereof will not be repeated here. In addition, the imaging device 100s can obtain depth information of the image. The above-mentioned electronic device 500 is taken as an example including a plurality of imaging devices 100, 100j, 100k, 100m, 100n, 100p, 100q, 100r, and 100s, but the number and configuration of the imaging devices are not intended to limit the present disclosure. When the user photographs the subject, the electronic device 500 utilizes the imaging device 100, the imaging device 100j, the imaging device 100k, the imaging device 100m, the imaging device 100n, the imaging device 100p, the imaging device 100q, the imaging device 100r, or the imaging device 100s to focus light and capture an image, activates the flash module 501 for fill light, and performs subsequent processing in a manner similar to the aforementioned embodiment, which will not be repeated here.

[0376] <Fifteenth Embodiment>

[0377] Please refer to Fig. 27 , is a schematic diagram illustrating an electronic device according to the fifteenth embodiment of the present disclosure.

[0378] In this embodiment, the electronic device 600 is a small-sized camera, such as a sports camera. The electronic device 600 includes a screen 601 and an image capturing device 602. The image capturing device 602 is electrically connected to the screen 601. The image capturing device 602 includes the optical imaging lens group in the first embodiment described above. The image capturing device 602 can be a wide-angle image capturing device. Similar to the image capturing device 100, the image capturing device 602 can further include a lens barrel, a supporting device or a combination thereof. The electronic device 600 uses the image capturing device 602 to perform functions such as shooting. Preferably, the electronic device can further include a control unit, a display unit, a storage unit, a random access memory (RAM) or a combination thereof.

[0379] <Sixteenth Embodiment>

[0380] Please refer to Figures 28 to 30 ,in Fig.28 FIG. 1 is a three-dimensional schematic diagram of an electronic device according to a sixteenth embodiment of the present disclosure. Fig.29 Draw Fig.28 A schematic side view of an electronic device, and Fig.30 Draw Fig.28 A top view schematic diagram of an electronic device.

[0381] In this embodiment, the electronic device 700 is a mobile vehicle, such as a car. The electronic device 700 includes a plurality of imaging devices 701, and these imaging devices 701, for example, respectively include the optical imaging lens assembly disclosed herein, which can be applied to a panoramic driving assistance system, a driving recorder, and a reverse imaging device. The imaging device 701 can be a wide-angle imaging device.

[0382] like Figures 28 to 30 As shown, the image capturing device 701 can be set at the front, rear, side, rear mirror and interior of the car, etc., to capture images around the car, which helps to identify the road conditions outside the car, so as to realize the automatic assisted driving function. In addition, the images can be combined into a panoramic picture through the image software processor to provide the driver with images of the blind spots, so that the driver can control the situation around the car body, which is convenient for driving and parking.

[0383] like Fig.29 As shown, the image capturing device 701 can be disposed under the left and right rearview mirrors, respectively, to capture image information within the left and right lanes. Fig.30 As shown, the imaging device 701 can also be disposed, for example, below the left and right rearview mirrors and inside the front and rear windshields, so as to help the driver obtain information about the external space outside the cockpit, provide more viewing angles to reduce blind spots, and improve driving safety. The configuration of the imaging device in the figure is only an example, and the number, position, and image capture direction of the imaging device can be adjusted according to actual needs.

[0384] <Seventeenth Embodiment>

[0385] Please refer to Fig.31 , is a schematic diagram illustrating an electronic device according to the seventeenth embodiment of the present disclosure.

[0386] In this embodiment, the electronic device 800 is a lightweight unmanned aerial vehicle, such as a drone. The electronic device 800 includes an imaging device 801. The imaging device 801 includes the optical imaging lens assembly in the first embodiment. The imaging device 801 can be a wide-angle imaging device. Similar to the imaging device 100, the imaging device 801 can further include a lens barrel, a supporting device or a combination thereof. The electronic device 800 uses the imaging device 801 to perform functions such as shooting. Preferably, the electronic device can further include a control unit, a display unit, a storage unit, a random access memory (RAM) or a combination thereof.

[0387] The imaging device disclosed herein is not limited to applications in smart phones, cameras, mobile vehicles, or unmanned aerial vehicles. The imaging device can be applied to mobile focus systems as required, and has the characteristics of excellent aberration correction and good imaging quality. For example, the imaging device can be widely used in electronic devices such as three-dimensional (3D) image capture, digital cameras, mobile devices, tablet computers, smart TVs, network monitoring equipment, driving recorders, reversing imaging devices, multi-lens devices, identification systems, somatosensory game consoles, and wearable devices. The aforementioned electronic devices are merely illustrative examples of the actual application of the present disclosure, and do not limit the scope of application of the imaging device disclosed herein.

[0388] Although the present disclosure is disclosed as above with the aforementioned preferred embodiments, it is not intended to limit the present disclosure. Any person skilled in the art may make some changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of patent protection of the present disclosure shall be determined by the claims attached to this specification.

Claims

1. An optical imaging lens assembly, characterized in that: It includes seven lenses. The seven lenses are, in order from the object side to the image side along the optical path, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. And the seven lenses respectively have an object-side surface facing the object side direction and an image-side surface facing the image side direction; Among them, the second lens has a negative refractive power, the object-side surface of the third lens is concave near the optical axis, the fourth lens has a positive refractive power, the image-side surface of the fifth lens is concave near the optical axis, the sixth lens has a positive refractive power, and the image-side surface of the sixth lens is convex near the optical axis; Among them, the distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, the radius of curvature of the object-side surface of the first lens is R1, the radius of curvature of the object-side surface of the third lens is R5, the Abbe number of the seventh lens is V7, and half of the maximum viewing angle in the optical imaging lens group is HFOV, which satisfy the following conditions: 0 < T34 / T45 < 0.50; 0 < (R1 + R5) / (R1 - R5) < 10.00; 5.0 < V7 < 50.0; and 0 < 1 / |tan(HFOV)| < 0.

500.

2. The optical imaging lens assembly according to claim 1, characterized in that: The distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, and the F-number of the optical imaging lens group is Fno, which satisfy the following conditions: 0 < T34 / T45 < 0.30; and 1.00 < Fno < 2.

15.

3. The optical imaging lens assembly according to claim 1, characterized in that: The seventh lens has a negative refractive power, the image-side surface of the seventh lens is concave near the optical axis, and at least one of the object-side surface and the image-side surface of the seventh lens has at least one inflection point.

4. The optical imaging lens assembly according to claim 1, characterized in that: The thickness of the third lens on the optical axis is CT3, and the thickness of the fourth lens on the optical axis is CT4, which satisfy the following conditions: 0 < CT3 / CT4 < 1.

00.

5. The optical imaging lens assembly according to claim 1, characterized in that: The sum of the thicknesses of all the lenses in the optical imaging lens group on the optical axis is ΣCT, and the sum of the distances between all adjacent lenses in the optical imaging lens group on the optical axis is ΣAT, which satisfy the following conditions: 0.10 < ΣCT / ΣAT < 1.

60.

6. The optical imaging lens assembly according to claim 1, characterized in that: The distance between the second lens and the third lens on the optical axis is T23, and the distance from the image-side surface of the seventh lens to an imaging plane on the optical axis is BL, which satisfy the following conditions: 0.60 < T23 / BL < 2.

50.

7. The optical imaging lens assembly according to claim 1, characterized in that: The distance from the object-side surface of the first lens to the image-side surface of the fourth lens on the optical axis is Dr1r8, and the distance from the object-side surface of the fifth lens to the image-side surface of the seventh lens on the optical axis is Dr9r14, which satisfy the following conditions: 2.60 < Dr1r8 / Dr9r14 < 6.

20.

8. The optical imaging lens assembly according to claim 1, characterized in that: The focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, and the focal length of the seventh lens is f7, which satisfy the following conditions: 0.30 < f5 / f7 < 5.00; and 1.20 < f4 / f6 < 5.

00.

9. The optical imaging lens assembly according to claim 1, characterized in that: 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 seventh lens is R14, which satisfy the following conditions: -1.20 < (R5 + R14) / (R5 - R14) < 0.

10. The optical imaging lens assembly according to claim 1, characterized in that: The displacement parallel to the optical axis from the intersection of the object-side surface of the seventh lens on the optical axis to the position of the maximum effective radius of the object-side surface of the seventh lens is Sag7R1, and the thickness of the sixth lens on the optical axis is CT6, which satisfy the following conditions: -0.50 < Sag7R1 / CT6 < 0.

11. The optical imaging lens assembly according to claim 1, characterized in that: The displacement parallel to the optical axis from the intersection of the object-side surface of the third lens on the optical axis to the position of the maximum effective radius of the object-side surface of the third lens is Sag3R1, and the thickness of the third lens on the optical axis is CT3, which satisfy the following conditions: -2.50 < Sag3R1 / CT3 < -0.

80.

12. The optical imaging lens assembly according to claim 1, characterized in that: The maximum imaging height of the optical imaging lens group is ImgH, and the maximum effective radius of the image-side surface of the seventh lens is Y7R2, which satisfy the following conditions: 1.20 < ImgH / Y7R2 < 2.

50.

13. An imaging device, characterized in that: Comprising: The optical imaging lens group according to claim 1; and An electronic photosensitive element disposed on an imaging surface of the optical imaging lens group.

14. An electronic device, characterized in that: Comprising: The imaging device according to claim 13.

15. An optical imaging lens assembly, characterized in that: Comprising seven lenses, and the seven lenses are sequentially the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens along the optical path from the object side to the image side, and the seven lenses respectively have an object-side surface facing the object side direction and an image-side surface facing the image side direction; Wherein, the first lens has a negative refractive power, the second lens has a negative refractive power, the object-side surface of the third lens is concave near the optical axis, the fourth lens has a positive refractive power, the image-side surface of the fifth lens is concave near the optical axis, and the sixth lens has a positive refractive power; Wherein, the interval distance between the third lens and the fourth lens on the optical axis is T34, the interval distance between the fourth lens and the fifth lens on the optical axis is T45, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the thickness of the first lens on the optical axis is CT1, the thickness of the seventh lens on the optical axis is CT7, the radius of curvature of the object-side surface of the fourth lens is R7, and the radius of curvature of the object-side surface of the seventh lens is R13, which satisfy the following conditions: 0 < T34 / T45 < 0.50; 0.08 < |f6 / f5| < 0.90; 1.50 < CT1 / CT7 < 10.00; and -5.00 < (R7 + R13) / (R7 - R13) < 0.

80.

16. The optical imaging lens assembly according to claim 15, characterized in that: The fifth lens has a negative refractive power, the focal length of the fourth lens is f4, and the focal length of the fifth lens is f5, which satisfy the following conditions: -1.80 < f4 / f5 < -0.

20.

17. The optical imaging lens assembly according to claim 15, characterized in that: The focal length of the second lens is f2, and the focal length of the fourth lens is f4, which satisfy the following conditions: -1.00 < f4 / f2 < -0.

10.

18. The optical imaging lens assembly according to claim 15, characterized in that: The thickness of the third lens on the optical axis is CT3, and the distance between the fourth lens and the fifth lens on the optical axis is T45, which satisfy the following conditions: 0.05 < CT3 / T45 < 1.

50.

19. The optical imaging lens assembly according to claim 15, characterized in that: The fifth lens is bonded to the sixth lens. The image-side surface of the fifth lens is an aspherical surface, and the object-side surface of the sixth lens is an aspherical surface. The seventh lens has a negative refractive power. The radius of curvature of the object-side surface of the fourth lens is R7, and the radius of curvature of the object-side surface of the sixth lens is R11, which satisfy the following conditions: 0 < R11 / R7 < 1.

30.

20. The optical imaging lens assembly according to claim 15, characterized in that: It further includes a diaphragm. The distance from the object-side surface of the first lens to an imaging surface on the optical axis is TL, and the distance from the diaphragm to the imaging surface on the optical axis is SL, which satisfy the following conditions: 2.50 < TL / SL < 5.

00.

21. The optical imaging lens assembly according to claim 15, characterized in that: The Abbe number of the third lens is V3, and the Abbe number of the fifth lens is V5, which satisfy the following conditions: 2.0 < V3 / V5 < 4.

0.

22. An optical imaging lens assembly, characterized in that: It includes seven lenses. The seven lenses are, in order from the object side to the image side along the optical path, the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, and the seventh lens. And the seven lenses respectively have an object-side surface facing the object side and an image-side surface facing the image side; Among them, the first lens has a negative refractive power, the second lens has a negative refractive power, the object-side surface of the third lens is concave near the optical axis, the sixth lens has a positive refractive power, and the image-side surface of the sixth lens is convex near the optical axis; Among them, the distance between the second lens and the third lens on the optical axis is T23, the distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, the thickness of the third lens on the optical axis is CT3, the Abbe number of the seventh lens is V7, 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 fifth lens is R10, which satisfy the following conditions: 0 < T34 / T45 < 0.50; 0 < CT3 / T23 < 1.00; 5.0 < V7 < 50.0; and 0.10 < |R5 / R10| < 5.

00.

23. The optical imaging lens assembly according to claim 22, characterized in that: At least one of the object-side surface and the image-side surface of the third lens has at least one inflection point. The Abbe number of the seventh lens is V7, which satisfy the following conditions: 10.0<V7<40.0。 24. The optical imaging lens assembly according to claim 22, characterized in that: The focal length of the optical imaging lens group is f, the focal length of the second lens is f2, the focal length of the fifth lens is f5, and the focal length of the seventh lens is f7, which satisfy the following conditions: 1.00 < (|f / f2| + |f / f5|) / |f / f7| < 3.

60.

25. The optical imaging lens assembly according to claim 22, characterized in that: The distance from the object-side surface of the fifth lens to the image-side surface of the seventh lens on the optical axis is Dr9r14, and the distance between the second lens and the third lens on the optical axis is T23, which satisfy the following conditions: 0.10 < Dr9r14 / T23 < 1.

65.

26. The optical imaging lens assembly according to claim 22, characterized in that: The image-side surface of the seventh lens has at least one inflection point. The distance between the fifth lens and the sixth lens on the optical axis is T56. The radius of curvature of the image-side surface of the fifth lens is R10. The radius of curvature of the object-side surface of the sixth lens is R11. The focal length of the optical imaging lens group is f, and it satisfies the following conditions: 0.010 mm < T56 < 0.050 mm; and 0.04 < |R10 - R11| × 10 / f < 8.

00.

27. The optical imaging lens assembly according to claim 22, characterized in that: The focal length of the optical imaging lens group is f. The focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the third lens is f3, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, the focal length of the seventh lens is f7, and the focal length of the i-th lens is fi, and it satisfies the following conditions: 1.00 < Σ|f / fi| < 3.00, where i = 1, 2, 3, 4, 5, 6, and 7.

28. The optical imaging lens assembly according to claim 22, characterized in that: The thickness of the first lens on the optical axis is CT1, and the thickness of the fifth lens on the optical axis is CT5, and it satisfies the following conditions: 0.05 < CT5 / CT1 < 1.

10.

29. The optical imaging lens assembly according to claim 22, wherein: The distance between the second lens and the third lens on the optical axis is T23, the distance between the third lens and the fourth lens on the optical axis is T34, the distance between the fourth lens and the fifth lens on the optical axis is T45, the radius of curvature of the object-side surface of the first lens is R1, the radius of curvature of the object-side surface of the third lens is R5, the radius of curvature of the object-side surface of the fourth lens is R7, the radius of curvature of the image-side surface of the fifth lens is R10, the radius of curvature of the object-side surface of the seventh lens is R13, the Abbe number of the seventh lens is V7, half of the maximum viewing angle in the optical imaging lens group is HFOV, the focal length of the fifth lens is f5, the focal length of the sixth lens is f6, 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 thickness of the seventh lens on the optical axis is CT7, and it satisfies the following conditions: 0.02 ≤ T34 / T45 ≤ 0.20; 0.58 ≤ (R1 + R5) / (R1 - R5) ≤ 1.05; 19.5≤V7≤28.3； 0.002 ≤ 1 / |tan(HFOV)| ≤ 0.220; 0.27 ≤ |f6 / f5| ≤ 0.53; 1.81 ≤ CT1 / CT7 ≤ 6.58; -3.02 ≤ (R7 + R13) / (R7 - R13) ≤ 0.19; 0.13 ≤ CT3 / T23 ≤ 0.28; and 0.67 ≤ |R5 / R10| ≤ 2.86.

Images