Optical image lens assembly, image capturing device and electronic device

Abstract

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

Description

Technical Field

[0001] The present disclosure relates to an optical imaging lens system set, an imaging device and an electronic device, and in particular to an optical imaging lens system set and an imaging device suitable for an electronic device. Background Art

[0002] As semiconductor process technology becomes more advanced, 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 indispensable part.

[0003] As technology advances, the application scope of electronic devices equipped with optical lenses is becoming wider, and the requirements for optical lenses are becoming more diverse. Since it is difficult for existing optical lenses to strike a balance between requirements such as 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 system, an imaging device, and an electronic device. The optical imaging lens system comprises six lenses arranged in sequence along the optical path from the object side to the image side. When certain conditions are met, the optical imaging lens system provided by the present disclosure can simultaneously meet the requirements of miniaturization and high imaging quality.

[0005] The present disclosure provides an optical imaging lens system group, comprising six lenses. The six lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from the object side to the image side along the optical path. The six lenses respectively have an object side surface facing the object side direction and an image side surface facing the image side direction. Preferably, the first lens has positive refractive power. Preferably, the fourth lens has positive refractive power. Preferably, the image side surface of the fourth lens is convex near the optical axis. Preferably, the object side surface of the fifth lens has at least one concave critical point at the off-axis position. Preferably, the image side surface of the fifth lens is concave near the optical axis. Preferably, the sixth lens has negative refractive power. Preferably, the object side surface of the sixth lens is convex near the optical axis. Preferably, the optical imaging lens system group also includes an aperture. The distance between the first lens and the second lens on the optical axis is T12, the distance between the second lens and the third lens on the optical axis is T23, the thickness of the first lens on the optical axis is CT1, the thickness of the fourth lens on the optical axis is CT4, the minimum Abbe number of all lenses in the optical imaging lens system is Vmin, the focal length of the optical imaging lens system is f, the focal length of the second lens is f2, the focal length of the fourth lens is f4, and the distance from the aperture to the image side surface of the sixth lens on the optical axis is SD, which preferably satisfies the following conditions:

[0006] 0<10×T23 / CT1<3.20;

[0007] 10.0 < Vmin < 21.5;

[0008] -0.90 < f4 / f2 < 0.15;

[0009] 0.10 < (CT4 - T12) / CT1 < 0.50; and

[0010] 0.85 < SD / f < 1.50.

[0011] The present disclosure further provides an optical imaging lens system group, including six lenses. The six 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, and a sixth lens. The six lenses respectively have an object side surface facing the object side direction and an image side surface facing the image side direction. Preferably, the first lens has a positive refractive power. Preferably, the fourth lens has a positive refractive power. Preferably, the image side surface of the fourth lens is convex near the optical axis. Preferably, the image side surface of the fifth lens is concave near the optical axis. Preferably, the sixth lens has a negative refractive power. Preferably, the object side surface of the sixth lens is convex near the optical axis. Preferably, the optical imaging lens system group further includes an aperture. Preferably, the aperture is disposed between the object to be photographed and the first lens. The focal length of the optical imaging lens system group is f, the focal length of the second lens is f2, 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 distance between the second lens and the third lens on the optical axis is T23, the thickness of the first lens on the optical axis is CT1, the thickness of the fourth lens on the optical axis is CT4, the minimum Abbe number among all the lenses of the optical imaging lens system group is Vmin, the Abbe number of the second lens is V2, and the Abbe number of the third lens is V3, and it preferably satisfies the following conditions:

[0012] 0 < (|f / f2| + |f / f5|) / |f / f4| < 1.60;

[0013] 0 < 10×T23 / CT1 < 3.00;

[0014] 10.0 < Vmin < 20.5;

[0015] 0.01 < CT4 / CT1 < 0.85;

[0016] -2.00 < f / f6 < -0.36; and

[0017] 0.01 < V2 / V3 < 0.90.

[0018] The present disclosure further provides an optical imaging lens system group, which includes six lenses. The six 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, and a sixth lens. The six 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 positive refractive power. Preferably, the second lens has a negative refractive power. Preferably, the fourth lens has a positive refractive power. Preferably, the image-side surface of the fourth lens is convex near the optical axis. Preferably, the image-side surface of the fifth lens is concave near the optical axis. Preferably, the sixth lens has a negative refractive power. Preferably, the object-side surface of the sixth lens is convex near the optical axis. Preferably, the optical imaging lens system group further includes an aperture. Preferably, the aperture is disposed between the object to be photographed and the first lens. The focal length of the optical imaging lens system group is f, the focal length of the second lens is f2, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the minimum Abbe number among all the lenses of the optical imaging lens system group is Vmin, the thickness of the first lens on the optical axis is CT1, the thickness of the fourth lens on the optical axis is CT4, the distance between the first lens and the second lens on the optical axis is T12, 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 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, and the radius of curvature of the object-side surface of the sixth lens is R11, which preferably satisfy the following conditions:

[0019] 0 < (|f / f2| + |f / f5|) / |f / f4| < 1.60;

[0020] 10.0 < Vmin < 20.5;

[0021] 0.10 < (CT4 - T12) / CT1 < 0.50;

[0022] 0.10 < R11 / R10 < 1.50;

[0023] 0.30 < T12 / T34 < 2.00; and

[0024] 0.01 < (T23 + T56) / CT1 < 1.00.

[0025] The present disclosure provides an imaging device, which includes the foregoing optical imaging lens system group and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on the imaging surface of the optical imaging lens system group.

[0026] The present disclosure provides an electronic device, which includes the foregoing imaging device.

[0027] When 10×T23 / CT1 satisfies the above conditions, the distance between the second lens and the third lens and the center thickness of the first lens can be balanced to control the volume of the optical imaging lens system.

[0028] When Vmin meets the above conditions, the lens material distribution can be adjusted and the chromatic aberration produced by the optical imaging lens system can be corrected, which helps to improve the imaging quality.

[0029] When f4 / f2 meets the above conditions, the refractive power ratio of the second lens element to the fourth lens element can be effectively adjusted, which helps to increase the symmetry of the optical imaging lens system and reduce the spot size of the central field of view.

[0030] When (CT4-T12) / CT1 satisfies the above conditions, the ratio of the thickness of the first lens to the center thickness of the fourth lens can be adjusted and balanced by the distance between the first lens and the second lens, thereby effectively shortening the total length of the optical imaging lens system.

[0031] When SD / f meets the above conditions, the aperture position can be controlled to help achieve a balance between viewing angle and volume.

[0032] When (|f / f2|+|f / f5|) / |f / f4| satisfies the above conditions, the light convergence capability of the fourth lens element can be enhanced and balanced by the second lens element and the fifth lens element, which helps to shorten the total length of the optical imaging lens system.

[0033] When CT4 / CT1 meets the above conditions, the center thickness ratio of the first lens and the fourth lens can be adjusted, which helps to increase space utilization efficiency.

[0034] When f / f6 meets the above conditions, the refractive power of the sixth lens can be adjusted, which helps to reduce the back focal length.

[0035] When V2 / V3 meets the above conditions, the optical path of the optical imaging lens system group can be adjusted to balance the convergence ability of light in different wavelength bands and correct chromatic aberration.

[0036] When R11 / R10 meets the above conditions, the ratio of the curvature radius of the image-side surface of the fifth lens to the curvature radius of the object-side surface of the sixth lens can be adjusted, which is helpful to correct astigmatism and distortion.

[0037] When T12 / T34 meets the above conditions, the distance between the first lens and the second lens and the distance between the third lens and the fourth lens can be adjusted to help balance the spatial configuration of the lenses to reduce the sensitivity of the optical imaging lens system.

[0038] When (T23+T56) / CT1 satisfies the above conditions, the lens group spacing and the center thickness of the first lens can be adjusted to control the optical path, which helps to assist in balancing the back focal length of the optical imaging lens system group.

[0039] 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

[0040] Figure 1 A schematic diagram of an imaging device according to a first embodiment of the present disclosure is shown.

[0041] Figure 2 From left to right are the spherical aberration, astigmatism and distortion curves of the first embodiment.

[0042] Figure 3 A schematic diagram of an imaging device according to a second embodiment of the present disclosure is shown.

[0043] Figure 4 From left to right are the spherical aberration, astigmatism and distortion curves of the second embodiment.

[0044] Figure 5 A schematic diagram of an imaging device according to a third embodiment of the present disclosure is shown.

[0045] Figure 6 From left to right are the spherical aberration, astigmatism and distortion curves of the third embodiment.

[0046] Figure 7 A schematic diagram of an imaging device according to a fourth embodiment of the present disclosure is shown.

[0047] Figure 8 From left to right are the spherical aberration, astigmatism and distortion curves of the fourth embodiment.

[0048] Fig. 9 A schematic diagram of an imaging device according to a fifth embodiment of the present disclosure is shown.

[0049] Fig.10 From left to right are the spherical aberration, astigmatism and distortion curves of the fifth embodiment.

[0050] Fig.11 A schematic diagram of an imaging device according to a sixth embodiment of the present disclosure is shown.

[0051] Fig.12 From left to right are the spherical aberration, astigmatism and distortion curves of the sixth embodiment.

[0052] Fig.13 A schematic diagram of an imaging device according to a seventh embodiment of the present disclosure is shown.

[0053] Fig.14 From left to right are the spherical aberration, astigmatism and distortion curves of the seventh embodiment.

[0054] Fig.15 A schematic diagram of an imaging device according to an eighth embodiment of the present disclosure is shown.

[0055] Fig.16 From left to right are the spherical aberration, astigmatism and distortion curves of the eighth embodiment.

[0056] Fig.17 A schematic diagram of an imaging device according to a ninth embodiment of the present disclosure is shown.

[0057] Fig.18 From left to right are the spherical aberration, astigmatism and distortion curves of the ninth embodiment.

[0058] Fig.19 A schematic diagram of an imaging device according to a tenth embodiment of the present disclosure is shown.

[0059] Fig. 20 From left to right are the spherical aberration, astigmatism and distortion curves of the tenth embodiment.

[0060] Fig.21 A three-dimensional schematic diagram of an imaging device according to an eleventh embodiment of the present disclosure is shown.

[0061] 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.

[0062] Fig.23 Draw Fig. 22 A three-dimensional schematic diagram of the other side of the electronic device.

[0063] Fig.24 A three-dimensional schematic diagram of one side of an electronic device according to a thirteenth embodiment of the present disclosure is shown.

[0064] Fig.25 Draw Fig.24 A three-dimensional schematic diagram of the other side of the electronic device.

[0065] Fig.26 Draw Fig.24 A system block diagram of an electronic device.

[0066] Fig. 27 A three-dimensional schematic diagram of one side of an electronic device according to a fourteenth embodiment of the present disclosure is shown.

[0067] Fig.28 A schematic diagram illustrating inflection points of a portion of lens surfaces and critical points of a portion of lens surfaces according to a first embodiment of the present disclosure is shown.

[0068] Fig.29 FIG. 4 is a schematic diagram showing parameters Y1R1 , Y2R2 , ET1 , and SAG1R1 according to the first embodiment of the present disclosure.

[0069] Fig.30 A schematic diagram showing a configuration relationship of an optical path turning element in an optical imaging lens system according to the present disclosure is shown.

[0070] Fig.31 A schematic diagram showing another configuration relationship of an optical path turning element in an optical imaging lens system according to the present disclosure is shown.

[0071] Fig.32 A schematic diagram showing a configuration relationship of two optical path turning elements in an optical imaging lens system according to the present disclosure is shown.

[0072]

Explanation of symbols

[0073] 1,2,3,4,5,6,7,8,9,10,100,100a,100b,100c,100d,100e,100f,100g,100h,100i,100j,100k,100m,100n,100p,100q,100r: imaging device

[0074] 101: Imaging Lens

[0075] 102: Driving device

[0076] 103: Electronic photosensitive element

[0077] 104: Image stabilization module

[0078] 200,300,400: Electronic devices

[0079] 201,304: Display module

[0080] 301,401: Flash module

[0081] 302: Focus assist module

[0082] 303: Image Signal Processor

[0083] 305: Image software processor

[0084] 306: Subject

[0085] C: Tipping point

[0086] P: Inflection point

[0087] OA1: First optical axis

[0088] OA2: Second optical axis

[0089] OA3: Third optical axis

[0090] LF: Light path turning element

[0091] LF1: First optical path turning element

[0092] LF2: Second optical path turning element

[0093] LG: Lens Group

[0094] ST: Aperture

[0095] S1, S2: aperture

[0096] E1: First lens

[0097] E2: Second lens

[0098] E3: The third lens

[0099] E4: The fourth lens

[0100] E5: The fifth lens

[0101] E6: The sixth lens

[0102] E7: Filter element

[0103] IMG: Imaging surface

[0104] IS: Electronic photosensitive element

[0105] CT1: Thickness of the first lens on the optical axis

[0106] CT4: Thickness of the fourth lens on the optical axis

[0107] EPD: entrance pupil diameter of the optical imaging lens system

[0108] ET1: The distance from the maximum effective radius position of the object side surface of the first lens to the maximum effective radius position of the image side surface of the first lens parallel to the optical axis

[0109] f: Focal length of the optical imaging lens system

[0110] f1: focal length of the first lens

[0111] f2: focal length of the second lens

[0112] f3: focal length of the third lens

[0113] f4: focal length of the fourth lens

[0114] f5: focal length of the fifth lens

[0115] f6: focal length of the sixth lens

[0116] Fno: Aperture value of the optical imaging lens system

[0117] HFOV: Half of the maximum viewing angle in an optical imaging lens system

[0118] FOV: The maximum viewing angle of the optical imaging lens system

[0119] ImgH: Maximum imaging height of the optical imaging lens system

[0120] R1: The radius of curvature of the object side surface of the first lens

[0121] R4: The radius of curvature of the image-side surface of the second lens

[0122] R5: The radius of curvature of the object side surface of the third lens

[0123] R9: The radius of curvature of the object side surface of the fifth lens

[0124] R10: Radius of curvature of the image-side surface of the fifth lens

[0125] R11: The radius of curvature of the object side surface of the sixth lens

[0126] R12: The radius of curvature of the image-side surface of the sixth lens

[0127] SD: Distance from the aperture to the image-side surface of the sixth lens on the optical axis

[0128] SAG1R1: The displacement parallel to the optical axis from the intersection of the first lens object side surface on the optical axis to the maximum effective radius position of the first lens object side surface

[0129] TL: The distance from the object side surface of the first lens to the imaging surface on the optical axis

[0130] T12: The distance between the first lens and the second lens on the optical axis

[0131] T23: The distance between the second lens and the third lens on the optical axis

[0132] T34: The distance between the third lens and the fourth lens on the optical axis

[0133] T45: The distance between the fourth lens and the fifth lens on the optical axis

[0134] T56: The distance between the fifth lens and the sixth lens on the optical axis

[0135] Vmin: Minimum Abbe number of all lenses in the optical imaging lens system

[0136] V2: Abbe number of the second lens

[0137] V3: Abbe number of the third lens

[0138] Y1R1: Maximum effective radius of the first lens object side surface

[0139] Y2R2: Maximum effective radius of the image side surface of the second lens DETAILED DESCRIPTION

[0140] The optical imaging lens system comprises six lenses, and the six lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from the object side to the image side along the optical path. The six lenses respectively have an object side surface facing the object side direction and an image side surface facing the image side direction.

[0141] The first lens has positive refractive power, thereby helping to converge light and compress the volume of the optical imaging lens system.

[0142] The second lens element may have negative refractive power, thereby balancing aberrations such as spherical aberration and coma generated by compressing the volume of the optical imaging lens system.

[0143] The object side surface of the third lens may be convex near the optical axis, thereby adjusting the direction of light travel and helping to increase the imaging surface.

[0144] The fourth lens has positive refractive power, which helps to converge light and effectively control the direction of the light path to reduce the back focal length. The image side surface of the fourth lens is convex near the optical axis, which can adjust the direction of light emitted from the fourth lens, helping to improve illumination.

[0145] The object side surface of the fifth lens can be convex near the optical axis; thereby, the surface shape and refractive power of the fifth lens can be adjusted, which helps to compress the volume of the optical imaging lens system and correct distortion. The image side surface of the fifth lens is concave near the optical axis; thereby, the surface shape of the image side surface of the fifth lens can be adjusted, which helps to reduce the light spot in the central field of view.

[0146] The sixth lens has negative refractive power, which can effectively control the back focal length to avoid the total length of the optical imaging lens system being too long. The object side surface of the sixth lens is convex near the optical axis, which can control the incident angle of light on the imaging surface to maintain the peripheral image brightness and correct off-axis aberrations.

[0147] At least one of the object side surface and the image side surface of the fifth lens may have at least one inflection point; thereby, the degree of freedom in the shape design of the fifth lens can be increased to facilitate the correction of astigmatism. Among them, the object side surface of the fifth lens may have at least one inflection point. Among them, the image side surface of the fifth lens may have at least one inflection point. The image side surface of the sixth lens may have at least one inflection point; thereby, the back focal length can be effectively shortened, the total length of the optical imaging lens system group can be controlled, and at the same time, it helps to correct and compensate for the field curvature of the peripheral image. Please refer to Fig.28 , which is a schematic diagram showing the inflection points P of all the lenses in the first embodiment of the present disclosure. Fig.28 The inflection points on the lens surface in the first embodiment of the present disclosure are shown as an exemplary illustration. However, in other embodiments of the present disclosure, each lens surface may have one or more inflection points.

[0148] The object side surface of the fifth lens may have at least one concave critical point off-axis; thereby, the incident angle of light on the object side surface of the fifth lens can be controlled, and excessive incident angles can be avoided to cause poor peripheral light collection. The image side surface of the sixth lens may have at least one convex critical point off-axis; thereby, the incident angle of light on the imaging surface can be adjusted, the peripheral light angle can be controlled, and vignetting and distortion reduction at the image periphery can be avoided. Please refer to Fig.28 , which is a schematic diagram showing the critical points C of some lenses in the first embodiment of the present disclosure. The third lens, the fifth lens, and the sixth lens in the first embodiment of the present disclosure have multiple critical points, where Fig.28 shows that the object side surface of the fifth lens has a concave critical point C, and the image side surface of the sixth lens has a convex critical point C. Fig.28 The critical points on the lens surface in the first embodiment of the present disclosure are shown as an exemplary illustration. However, in other embodiments of the present disclosure, each lens surface may have one or more critical points off-axis.

[0149] The minimum Abbe number among all the lenses of the optical imaging lens system group is Vmin, which satisfies the following conditions: 10.0 < Vmin < 21.5. Thereby, the distribution of the lens material can be adjusted and the chromatic aberration generated by the optical imaging lens system group can be corrected, which helps to improve the imaging quality. Among them, the following conditions can also be satisfied: 10.0 < Vmin < 20.5. Among them, the following conditions can also be satisfied: 12.0 < Vmin < 20.0. Among them, the following conditions can also be satisfied: 14.0 < Vmin < 19.8. Among them, the following conditions can also be satisfied: 16.3 ≤ Vmin ≤ 19.5.

[0150] The distance between the second lens and the third lens on the optical axis is T23, and the thickness of the first lens on the optical axis is CT1, which can satisfy the following conditions: 0 < 10×T23 / CT1 < 3.20. Thereby, the distance between the second lens and the third lens and the central thickness of the first lens can be balanced to control the volume of the optical imaging lens system group. Among them, the following conditions can also be satisfied: 0 < 10×T23 / CT1 < 3.00. Among them, the following conditions can also be satisfied: 0.20 < 10×T23 / CT1 < 2.80. Among them, the following conditions can also be satisfied: 0.50 ≤ 10×T23 / CT1 ≤ 2.25.

[0151] 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: -0.90 < f4 / f2 < 0.15. Thereby, the refractive power ratio between the second lens and the fourth lens can be effectively adjusted, which helps to increase the symmetry of the optical imaging lens system group and reduce the spot size of the central field of view. Among them, the following conditions can also be satisfied: -0.80 < f4 / f2 < -0.10. Among them, the following conditions can also be satisfied: -0.73 ≤ f4 / f2 ≤ 0.05.

[0152] The thickness of the first lens on the optical axis is CT1, the thickness of the fourth lens on the optical axis is CT4, and the distance between the first lens and the second lens on the optical axis is T12, which can satisfy the following conditions: 0.10 < (CT4 - T12) / CT1 < 0.50. Thereby, the ratio of the thickness of the first lens to the central thickness of the fourth lens can be adjusted and balanced by the distance between the first lens and the second lens, effectively shortening the total length of the optical imaging lens system group. Among them, the following conditions can also be satisfied: 0.12 < (CT4 - T12) / CT1 < 0.46. Among them, the following conditions can also be satisfied: 0.15 ≤ (CT4 - T12) / CT1 ≤ 0.43.

[0153] The optical imaging lens system group may further include an aperture. The aperture can be disposed between the object to be photographed and the first lens. Thereby, the imaging range and the incident angle of light incident on the imaging surface can be restricted, which helps to increase the relative illuminance of the peripheral field of view. The distance from the aperture to the image-side surface of the sixth lens on the optical axis is SD, and the focal length of the optical imaging lens system group is f, which can satisfy the following conditions: 0.85 < SD / f < 1.50. Thereby, the aperture position can be controlled, which helps to balance between the viewing angle and the volume. Among them, the following conditions can also be satisfied: 0.90 < SD / f < 1.35. Among them, the following conditions can also be satisfied: 0.95 ≤ SD / f ≤ 1.24.

[0154] The focal length of the optical imaging lens system group is f, the focal length of the second lens is f2, the focal length of the fourth lens is f4, and the focal length of the fifth lens is f5, which can satisfy the following conditions: 0 < (|f / f2| + |f / f5|) / |f / f4| < 1.60. Thereby, the light converging ability of the fourth lens can be strengthened and balanced by the second lens and the fifth lens, which helps to shorten the total length of the optical imaging lens system group. Among them, the following conditions can also be satisfied: 0.05 < (|f / f2| + |f / f5|) / |f / f4| < 1.50. Among them, the following conditions can also be satisfied: 0.10 < (|f / f2| + |f / f5|) / |f / f4| < 1.40. Among them, the following conditions can also be satisfied: 0.26 ≤ (|f / f2| + |f / f5|) / |f / f4| ≤ 1.22.

[0155] The thickness of the first lens on the optical axis is CT1, and the thickness of the fourth lens on the optical axis is CT4, which can satisfy the following conditions: 0.01 < CT4 / CT1 < 0.85. Thereby, the ratio of the central thicknesses of the first lens and the fourth lens can be adjusted, which helps to increase the space utilization efficiency. Among them, the following conditions can also be satisfied: 0.20 < CT4 / CT1 < 0.82. Among them, the following conditions can also be satisfied: 0.40 ≤ CT4 / CT1 ≤ 0.80.

[0156] The focal length of the optical imaging lens system group is f, and the focal length of the sixth lens is f6, which can satisfy the following conditions: -2.00 < f / f6 < -0.36. Thereby, the refractive power of the sixth lens can be adjusted, which helps to reduce the back focal length. Among them, the following conditions can also be satisfied: -1.50 < f / f6 < -0.45. Among them, the following conditions can also be satisfied: -1.13 ≤ f / f6 ≤ -0.50.

[0157] The Abbe number of the second lens is V2, and the Abbe number of the third lens is V3, which can satisfy the following conditions: 0.01 < V2 / V3 < 0.90. Thereby, the optical path of the optical imaging lens system group can be adjusted to balance the converging ability between light rays of different wavelength bands and correct chromatic aberration. Among them, the following conditions can also be satisfied: 0.20 < V2 / V3 < 0.70. Among them, the following conditions can also be satisfied: 0.29 ≤ V2 / V3 ≤ 0.52.

[0158] The radius of curvature of the image side surface of the fifth lens is R10, and the radius of curvature of the object side surface of the sixth lens is R11, which can satisfy the following conditions: 0.10 < R11 / R10 < 1.50. Thereby, the ratio of the radius of curvature of the image side surface of the fifth lens to the radius of curvature of the object side surface of the sixth lens can be adjusted, which helps to correct astigmatism and distortion. Among them, the following conditions can also be satisfied: 0.20 < R11 / R10 < 0.80. Among them, the following conditions can also be satisfied: 0.23 ≤ R11 / R10 ≤ 1.14.

[0159] The distance between the first lens and the second lens on the optical axis is T12, and the distance between the third lens and the fourth lens on the optical axis is T34, which can satisfy the following conditions: 0.30 < T12 / T34 < 2.00. Thereby, the distance between the first lens and the second lens and the distance between the third lens and the fourth lens can be adjusted, which helps to balance the spatial configuration of the lenses to reduce the sensitivity of the optical imaging lens system group. Among them, the following conditions can also be satisfied: 0.40 < T12 / T34 < 1.50. Among them, the following conditions can also be satisfied: 0.53 ≤ T12 / T34 ≤ 1.27.

[0160] The distance between the second lens and the third lens on the optical axis is T23, and the distance between the fifth lens and the sixth lens on the optical axis is T56. The thickness of the first lens on the optical axis is CT1, which can satisfy the following conditions: 0.01 < (T23 + T56) / CT1 < 1.00. Thereby, the lens group spacing and the central thickness of the first lens can be adjusted to control the optical path, which helps to assist in balancing the back focal length of the optical imaging lens system group. Among them, the following conditions can also be satisfied: 0.30 < (T23 + T56) / CT1 < 0.90. Among them, the following conditions can also be satisfied: 0.47 ≤ (T23 + T56) / CT1 ≤ 0.87.

[0161] The maximum viewing angle of the optical imaging lens system group is FOV, which can satisfy the following conditions: 82.0 [degrees] < FOV < 110.0 [degrees]. Thereby, the optical imaging lens system group can have a sufficient imaging range to meet the viewing field requirements of the application device and avoid aberration such as distortion caused by too large a viewing angle. Among them, the following conditions can also be satisfied: 85.0 [degrees] < FOV < 100.0 [degrees].

[0162] The radius of curvature of the image side surface of the second lens is R4, and the radius of curvature of the object side surface of the sixth lens is R11, which can satisfy the following conditions: 0.10 < (R4 - R11) / (R4 + R11) < 2.00. Thereby, the radius of curvature of the image side of the second lens and the radius of curvature of the object side of the sixth lens can be adjusted to correct aberration and field curvature. Among them, the following conditions can also be satisfied: 0.25 < (R4 - R11) / (R4 + R11) < 1.50.

[0163] 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 sixth lens is R11, which can satisfy the following conditions: 0 < (R1 - R11) / (R1 + R11) < 1.00. Thereby, the radius of curvature of the object side of the first lens and the radius of curvature of the object side of the sixth lens can be effectively balanced, and the optical path of the optical imaging lens system group can be adjusted so that the first lens can cooperate with the sixth lens, which helps to improve the central imaging quality. Among them, the following conditions can also be satisfied: 0.01 < (R1 - R11) / (R1 + R11) < 0.60.

[0164] The distance between the first lens and the second lens on the optical axis is T12, and the distance between the second lens and the third lens on the optical axis is T23, which can satisfy the following conditions: 0.01 < T23 / T12 < 0.70. Thereby, the ratio of the distance between the first lens and the second lens and the distance between the second lens and the third lens can be controlled, which helps to reduce the sensitivity in manufacturing and correct aberrations at the same time. Among them, the following conditions can also be satisfied: 0.05 < T23 / T12 < 0.65.

[0165] The focal length of the optical imaging lens system group is f, the radius of curvature of the object side surface of the fifth lens is R9, and the radius of curvature of the image side surface of the fifth lens is R10, which can satisfy the following conditions: 0.50 < |f / R9| + f / R10 < 3.00. Thereby, the surface shape and refractive power of the fifth lens can be adjusted to correct the imaging quality. Among them, the following conditions can also be satisfied: 0.80 < |f / R9| + f / R10 < 2.60.

[0166] The radius of curvature of the image side surface of the second lens is R4, and the radius of curvature of the object side surface of the third lens is R5, which can satisfy the following conditions: 0.10 < R5 / R4 < 1.00. Thereby, the surface shapes of the second lens and the third lens can be effectively balanced to mutually balance the central spherical aberration and improve the imaging quality. Among them, the following conditions can also be satisfied: 0.20 < R5 / R4 < 0.85.

[0167] The maximum effective radius of the object side surface of the first lens is Y1R1, and the maximum effective radius of the image side surface of the second lens is Y2R2, which can satisfy the following conditions: 0.80 < Y2R2 / Y1R1 < 1.40. Thereby, the optical effective diameter heights of the first lens and the second lens can be balanced, which helps to increase the viewing angle and compress the volume. Among them, the following conditions can also be satisfied: 1.00 < Y2R2 / Y1R1 < 1.30. Please refer to Fig.29 , which is a schematic diagram showing the parameters Y1R1 and Y2R2 in the first embodiment according to the present disclosure.

[0168] The distance parallel to the optical axis from the position of the maximum effective radius of the object side surface of the first lens to the position of the maximum effective radius of the image side surface of the first lens is ET1, and the thickness of the first lens on the optical axis is CT1, which can satisfy the following conditions: 0.60 < ET1 / CT1 < 1.00. Thereby, the ratio of the edge thickness to the center thickness of the first lens can be adjusted, and a sufficient edge thickness can be maintained to improve the assembly qualification rate. Among them, the following conditions can also be satisfied: 0.65 < ET1 / CT1 < 0.85. Please refer to Fig.29 , which is a schematic diagram showing the parameter ET1 in the first embodiment according to the present disclosure.

[0169] The displacement amount parallel to the optical axis from the intersection point of the object-side surface of the first lens on the optical axis to the maximum effective radius position of the object-side surface of the first lens is SAG1R1, and the thickness of the first lens on the optical axis is CT1, which can satisfy the following conditions: 0.01 < SAG1R1 / CT1 < 0.35. Thereby, the bending degree of the object-side peripheral surface shape of the first lens can be controlled, which helps to compress the total length and reduce the outer diameter of the object-side end of the optical imaging lens system group, and corrects coma. Among them, the following conditions can also be satisfied: 0.10 < SAG1R1 / CT1 < 0.30. Please refer to Fig.29 , which is a schematic diagram showing the parameter SAG1R1 in the first embodiment of the present disclosure. Among them, the value of the displacement amount is positive in the image-side direction and negative in the object-side direction.

[0170] The maximum effective radius of the object-side surface of the first lens is Y1R1, and the maximum imaging height of the optical imaging lens system group (which can be half of the total diagonal length of the effective sensing area of the electronic photosensitive element) is ImgH, which can satisfy the following conditions: 0.15 < Y1R1 / ImgH < 0.35. Thereby, the optical effective diameter height of the object-side of the first lens can be adjusted, which helps to increase the imaging size and reduce the outer diameter of the object-side end of the optical imaging lens system group. Among them, the following conditions can also be satisfied: 0.20 < Y1R1 / ImgH < 0.30.

[0171] The focal length of the optical imaging lens system group is f, and the curvature radius of the object-side surface of the first lens is R1, which can satisfy the following conditions: 0.70 < f / R1 < 2.00. Thereby, it helps to adjust the surface shape of the object-side of the first lens to compress the volume and reduce the generation of spherical aberration at the same time. Among them, the following conditions can also be satisfied: 0.90 < f / R1 < 1.90.

[0172] The distance from the object-side surface of the first lens to the imaging surface on the optical axis is TL, and the maximum imaging height of the optical imaging lens system group is ImgH, which can satisfy the following conditions: 0.50 < TL / ImgH < 1.40. Thereby, it helps to balance between compressing the total length and increasing the imaging surface. Among them, the following conditions can also be satisfied: 0.80 < TL / ImgH < 1.40. Among them, the following conditions can also be satisfied: 1.00 < TL / ImgH < 1.40.

[0173] The curvature radius of the image-side surface of the second lens is R4, and the curvature radius of the image-side surface of the fifth lens is R10, which can satisfy the following conditions: 0 < (R4 - R10) / (R4 + R10) < 2.00. Thereby, the curvature radius of the image-side of the second lens and the curvature radius of the image-side of the fifth lens can be adjusted, which helps to balance between the central light-gathering quality and the lens volume. Among them, the following conditions can also be satisfied: 0.05 < (R4 - R10) / (R4 + R10) < 1.50.

[0174] The entrance pupil diameter of the optical imaging lens system group is EPD, the thickness of the first lens on the optical axis is CT1, and the distance between the first lens and the second lens on the optical axis is T12, which can satisfy the following conditions: 1.10 < EPD / (CT1 + T12) < 2.00. Thereby, the ratio of the length of the front lens group to the entrance pupil diameter can be adjusted to ensure the light input amount of the optical imaging lens system group and improve the image brightness. Among them, the following conditions can also be satisfied: 1.30 < EPD / (CT1 + T12) < 1.85.

[0175] The distance between the first lens and the second lens on the optical axis is T12, and the thickness of the fourth lens on the optical axis is CT4, which can satisfy the following conditions: 0.30 < T12 / CT4 < 1.00. Thereby, the distance between the first lens and the second lens and the ratio of the center thickness of the fourth lens can be controlled, which helps to reduce manufacturing tolerances. Among them, the following conditions can also be satisfied: 0.40 < T12 / CT4 < 0.85.

[0176] The focal length of the optical imaging lens system group is f, the focal length of the first lens is f1, the focal length of the third lens is f3, and the focal length of the sixth lens is f6, which can satisfy the following conditions: 0.90 < (|f / f3| + |f / f6|) / |f / f1| < 2.00. Thereby, the refractive power distribution of the front lens and the middle and rear lenses can be balanced, which helps to reduce the eccentricity sensitivity. Among them, the following conditions can also be satisfied: 1.00 < (|f / f3| + |f / f6|) / |f / f1| < 1.80.

[0177] The distance between the fifth lens and the sixth lens on the optical axis is T56, and the thickness of the first lens on the optical axis is CT1, which can satisfy the following conditions: 0.30 < T56 / CT1 < 1.00. Thereby, it helps to balance the assembly error and manufacturability and improve the qualified rate. Among them, the following conditions can also be satisfied: 0.33 < T56 / CT1 < 0.70.

[0178] The focal length of the sixth lens is f6, the radius of curvature of the object side surface of the sixth lens is R11, and the radius of curvature of the image side surface of the sixth lens is R12, which can satisfy the following conditions: 5.00 < |f6 / R11| + |f6 / R12| < 20.00. Thereby, the surface shape and refractive power of the sixth lens can be balanced, which helps to compress the volume and correct distortion and field curvature. Among them, the following conditions can also be satisfied: 8.00 < |f6 / R11| + |f6 / R12| < 18.00.

[0179] The distance between the first lens and the second lens on the optical axis is T12, the distance between the second lens and the third lens on the optical axis is T23, and the distance between the fourth lens and the fifth lens on the optical axis is T45, which can satisfy the following conditions: 0.01 < (T23 + T45) / T12 < 1.60. Thereby, the lens spacing of the optical imaging lens system group can be adjusted, effectively compressing the space of the optical imaging lens system group to meet the requirements of miniaturization. Among them, the following conditions can also be satisfied: 0.15 < (T23 + T45) / T12 < 1.20.

[0180] The radius of curvature of the object side surface of the first lens is R1, and the radius of curvature of the image side surface of the sixth lens is R12, which can satisfy the following conditions: 0.01 < R12 / R1 < 0.60. Thereby, the light path control ability of the lens can be improved, balancing the spherical aberration and field curvature of the optical imaging lens system group to improve the image quality. Among them, the following conditions can also be satisfied: 0.20 < R12 / R1 < 0.50.

[0181] The radius of curvature of the image side surface of the second lens is R4, and the radius of curvature of the object side surface of the sixth lens is R11, which can satisfy the following conditions: 0.01 < |R11 / R4| < 0.50. Thereby, the ratio of the radius of curvature of the image side surface of the second lens to the radius of curvature of the object side surface of the sixth lens can be adjusted to correct the central spherical aberration and astigmatism. Among them, the following conditions can also be satisfied: 0.10 < |R11 / R4| < 0.45.

[0182] The focal length of the third lens is f3, and the focal length of the sixth lens is f6, which can satisfy the following conditions: 0.45 < |f6 / f3| < 2.00. Thereby, the refractive power configuration can be adjusted to balance the back focal length of the optical imaging lens system group, and thus meet more diverse applications. Among them, the following conditions can also be satisfied: 0.48 < |f6 / f3| < 1.50.

[0183] The focal length of the optical imaging lens system group is f, and the radius of curvature of the image side surface of the fifth lens is R10, which can satisfy the following conditions: 0.50 < f / R10 < 2.00. Thereby, the refractive power and surface shape of the fifth lens can be effectively balanced, helping to correct the astigmatism of the optical imaging lens system group and reduce the stray light in the optical imaging lens system group. Among them, the following conditions can also be satisfied: 0.60 < f / R10 < 1.80.

[0184] The displacement parallel to the optical axis from the intersection of the object side surface of the first lens on the optical axis to the maximum effective radius position of the object side surface of the first lens is SAG1R1, and the radius of curvature of the object side surface of the first lens is R1, which can meet the following conditions: 0.10<10×SAG1R1 / R1<1.50. In this way, the overall surface shape of the object side surface of the first lens can be controlled, which is conducive to reducing the generation of aberrations and reducing the volume of the optical imaging lens system group to meet the needs of miniaturization. Among them, the following conditions can also be met: 0.30<10×SAG1R1 / R1<1.20.

[0185] The various technical features of the optical imaging lens system disclosed in the present disclosure can be configured in combination to achieve corresponding effects.

[0186] In the optical imaging lens system 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 configuration of the refractive power of the optical imaging lens system can be increased, and the influence of the external ambient temperature change on the imaging can be reduced, and the glass lens can be made by grinding or molding. If the lens material is plastic, the production cost can be effectively reduced. In addition, a spherical surface or an aspherical surface (ASP) can be set on the mirror surface, wherein the spherical lens can reduce the manufacturing difficulty, and if the aspherical surface is set on the mirror surface, more control variables can be obtained to reduce aberrations, reduce the number of lenses, and effectively reduce the total length of the optical imaging lens system disclosed in the present disclosure. Furthermore, the aspherical surface can be made by plastic injection molding or molding glass lenses.

[0187] In the optical imaging lens system disclosed in the present disclosure, if the lens surface is an aspherical surface, it means that the entire optical effective area of ​​the lens surface or a part of it is an aspherical surface.

[0188] In the optical imaging lens system disclosed in the present disclosure, additives can be selectively added to any (or more) lens materials to produce light absorption or light interference effects to change the lens's transmittance for light in a specific wavelength band, thereby reducing stray light and color deviation. For example, the additive can have the function of filtering out light in the 600-nanometer to 800-nanometer wavelength band in the system to help reduce excess red light or infrared light; or it can filter out light in the 350-nanometer to 450-nanometer wavelength band to reduce excess blue light or ultraviolet light. Therefore, the additive can prevent light in a specific wavelength band from interfering with imaging. In addition, the additive can be evenly mixed in a plastic material and made into a lens using injection molding technology. In addition, the additive can also be configured as a coating on the surface of the lens to provide the above-mentioned effects.

[0189] In the optical imaging lens system 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.

[0190] In the optical imaging lens system 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 positively and negatively. 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.

[0191] In the optical imaging lens system disclosed in the present disclosure, the imaging surface of the optical imaging lens system 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.

[0192] In the optical imaging lens system 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 type (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.

[0193] In the optical imaging lens system disclosed in the present disclosure, at least one element with a function of turning the optical path, such as a prism or a reflector, can be selectively arranged between the object and the imaging plane 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 a more flexible spatial configuration of the optical imaging lens system, so that the thinness of the electronic device is not restricted by the total optical length of the optical imaging lens system. For further explanation, please refer to Fig.30 and Fig.31 ,in Fig.30 is a schematic diagram showing a configuration relationship of an optical path turning element in an optical imaging lens system according to the present disclosure, and Fig.31 FIG. 2 is a schematic diagram showing another configuration relationship of an optical path turning element in an optical imaging lens system according to the present disclosure. Fig.30 and Fig.31As shown, the optical imaging lens system 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.30 As shown, it is arranged between the object and the lens group LG of the optical imaging lens system, or as shown Fig.31 The optical imaging lens system is shown as being arranged between the lens group LG and the imaging surface IMG. Fig.32 , is a schematic diagram illustrating a configuration relationship of two optical path turning elements in an optical imaging lens system according to the present disclosure, such as Fig.32 As shown, the optical imaging lens system 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 system group, the second optical path turning element LF2 is arranged between the lens group LG of the optical imaging lens system group and the imaging surface IMG, and the traveling direction of the light on the first optical axis OA1 can be as follows: Fig.32 The direction shown is the same as the direction of light traveling along the third optical axis OA3. The optical imaging lens system can also selectively configure 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.

[0194] In the optical imaging lens system disclosed in the present invention, 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.

[0195] In the optical imaging lens system 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 system.

[0196] The present disclosure may appropriately set a variable aperture element, which may be a mechanical component or a light regulating 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 regulating element may include shielding materials such as a filter element, an electrochromic material, and a liquid crystal layer. 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.

[0197] The present disclosure may appropriately place one or more optical elements to limit the form of light passing through the optical imaging lens system 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 system set to control the passage of a specific form of light, thereby meeting the application requirements.

[0198] The optical imaging lens system 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.

[0199] In the optical imaging lens system disclosed in the present invention, 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.

[0200] According to the above implementation modes, specific embodiments are proposed below and described in detail with reference to the accompanying drawings.

[0201] <First Embodiment>

[0202] 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 system (not labeled) and an electronic photosensitive element IS. The optical imaging lens system includes an aperture ST, a first lens E1, a stop S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a stop S2, a sixth lens E6, a filter element E7 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 system includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other interpolated lenses between the lenses.

[0203] The first lens E1 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 has an inflection point.

[0204] 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 one inflection point, and its image-side surface has two inflection points.

[0205] The third lens E3 has positive 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 two inflection points, its image-side surface has two inflection points, 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.

[0206] The fourth lens E4 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 two inflection points, and its image-side surface has two inflection points.

[0207] The fifth lens E5 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, and both surfaces are aspherical. Its object-side surface has three inflection points, its image-side surface has three inflection points, 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.

[0208] The sixth lens E6 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, and both surfaces are aspherical. Its object-side surface has five inflection points, its image-side surface has three inflection points, its object-side surface has a concave critical point and a convex critical point at an off-axis position, and its image-side surface has a convex critical point at an off-axis position.

[0209] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens system.

[0210] The curve equations of the aspheric surfaces of the above lenses are expressed as follows:

[0211]

[0212] 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;

[0213] Y: the vertical distance between the point on the aspheric curve and the optical axis;

[0214] R: radius of curvature;

[0215] k: cone coefficient; and

[0216] Ai: i-th order aspheric coefficient.

[0217] In the optical imaging lens system of the first embodiment, the focal length of the optical imaging lens system is f, the aperture value of the optical imaging lens system is Fno, and half of the maximum viewing angle of the optical imaging lens system is HFOV, and its values ​​are as follows: f=3.03 millimeters (mm), Fno=2.08, HFOV=44.6 degrees (deg.).

[0218] The maximum viewing angle of the optical imaging lens system is FOV, which satisfies the following condition: FOV=89.2 degrees.

[0219] 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 maximum imaging height of the optical imaging lens system is ImgH, which satisfies the following condition: TL / ImgH=1.37.

[0220] The distance between the aperture ST and the image-side surface of the sixth lens E6 on the optical axis is SD, and the focal length of the optical imaging lens system is f, which satisfies the following condition: SD / f=1.06.

[0221] The focal length of the optical imaging lens system is f, and the focal length of the sixth lens element E6 is f6, which satisfies the following condition: f / f6=-0.57.

[0222] 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=-0.47.

[0223] The focal length of the third lens E3 is f3, and the focal length of the sixth lens E6 is f6, which satisfy the following condition: |f6 / f3|=0.47.

[0224] The focal length of the optical imaging lens system is f, the focal length of the second lens E2 is f2, the focal length of the fourth lens E4 is f4, and the focal length of the fifth lens E5 is f5, which satisfies the following condition: (|f / f2|+|f / f5|) / |f / f4|=0.89.

[0225] The focal length of the optical imaging lens system is f, the focal length of the first lens E1 is f1, the focal length of the third lens E3 is f3, and the focal length of the sixth lens E6 is f6, which satisfies the following condition: (|f / f3|+|f / f6|) / |f / f1|=1.02.

[0226] The focal length of the optical imaging lens system is f, and the curvature radius of the object-side surface of the first lens E1 is R1, which satisfies the following condition: f / R1=1.45.

[0227] The focal length of the optical imaging lens system is f, and the curvature radius of the image-side surface of the fifth lens E5 is R10, which satisfies the following condition: f / R10=1.27.

[0228] The focal length of the optical imaging lens system is f, the curvature radius of the object-side surface of the fifth lens E5 is R9, and the curvature radius of the image-side surface of the fifth lens E5 is R10, which satisfies the following condition: |f / R9|+f / R10=1.82.

[0229] The focal length of the sixth lens E6 is f6, the radius of curvature of the object-side surface of the sixth lens E6 is R11, and the radius of curvature of the image-side surface of the sixth lens E6 is R12, which satisfies the following condition: |f6 / R11|+|f6 / R12|=14.43.

[0230] The radius of curvature of the object-side surface of the first lens E1 is R1, and the radius of curvature of the object-side surface of the sixth lens E6 is R11, which satisfy the following condition: (R1-R11) / (R1+R11)=0.39.

[0231] The curvature radius of the image-side surface of the second lens E2 is R4, and the curvature radius of the object-side surface of the sixth lens E6 is R11, which satisfy the following condition: (R4-R11) / (R4+R11)=0.70.

[0232] The curvature radius of the image-side surface of the second lens E2 is R4, and the curvature radius of the image-side surface of the fifth lens E5 is R10, which satisfy the following condition: (R4-R10) / (R4+R10)=0.37.

[0233] The curvature radius of the image-side surface of the second lens E2 is R4, and the curvature radius of the object-side surface of the third lens E3 is R5, which satisfy the following condition: R5 / R4=0.74.

[0234] The curvature radius of the image-side surface of the second lens E2 is R4, and the curvature radius of the object-side surface of the sixth lens E6 is R11, which satisfy the following condition: |R11 / R4|=0.18.

[0235] The curvature radius of the image-side surface of the fifth lens E5 is R10, and the curvature radius of the object-side surface of the sixth lens E6 is R11, which satisfy the following condition: R11 / R10=0.39.

[0236] The curvature radius of the object-side surface of the first lens E1 is R1, and the curvature radius of the image-side surface of the sixth lens E6 is R12, which satisfy the following condition: R12 / R1=0.30.

[0237] The entrance pupil diameter of the optical imaging lens system is EPD, the thickness of the first lens E1 on the optical axis is CT1, and the spacing between the first lens E1 and the second lens E2 on the optical axis is T12, which satisfies the following condition: EPD / (CT1+T12)=1.61. In this embodiment, the spacing between two adjacent lenses on the optical axis refers to the spacing between two adjacent mirror surfaces of the adjacent lenses on the optical axis.

[0238] The thickness of the first lens E1 on the optical axis is CT1, the thickness of the fourth lens E4 on the optical axis is CT4, and the interval between the first lens E1 and the second lens E2 on the optical axis is T12, which satisfies the following condition: (CT4-T12) / CT1=0.29.

[0239] The thickness of the first lens E1 on the optical axis is CT1, and the thickness of the fourth lens E4 on the optical axis is CT4, which satisfies the following condition: CT4 / CT1=0.62.

[0240] The distance between the first lens E1 and the second lens E2 on the optical axis is T12, and the thickness of the fourth lens E4 on the optical axis is CT4, which satisfies the following condition: T12 / CT4=0.54.

[0241] The distance between the first lens E1 and the second lens E2 on the optical axis is T12, and the distance between the third lens E3 and the fourth lens E4 on the optical axis is T34, which satisfies the following condition: T12 / T34=0.63.

[0242] The distance between the second lens E2 and the third lens E3 on the optical axis is T23, and the thickness of the first lens E1 on the optical axis is CT1, which satisfies the following condition: 10×T23 / CT1=1.92.

[0243] The distance between the first lens E1 and the second lens E2 on the optical axis is T12, and the distance between the second lens E2 and the third lens E3 on the optical axis is T23, which satisfies the following condition: T23 / T12=0.57.

[0244] The distance between the first lens E1 and the second lens E2 on the optical axis is T12, the distance between the second lens E2 and the third lens E3 on the optical axis is T23, and the distance between the fourth lens E4 and the fifth lens E5 on the optical axis is T45, which satisfies the following condition: (T23+T45) / T12=0.70.

[0245] The distance between the second lens E2 and the third lens E3 on the optical axis is T23, the distance between the fifth lens E5 and the sixth lens E6 on the optical axis is T56, and the thickness of the first lens E1 on the optical axis is CT1, which satisfies the following condition: (T23+T56) / CT1=0.63.

[0246] The distance between the fifth lens E5 and the sixth lens E6 on the optical axis is T56, and the thickness of the first lens E1 on the optical axis is CT1, which satisfies the following condition: T56 / CT1=0.44.

[0247] The minimum Abbe number of all lenses in the optical imaging lens system is Vmin, which satisfies the following condition: Vmin = 19.5. In this embodiment, the Abbe number of the second lens E2 is less than the Abbe number of the remaining lenses in the optical imaging lens system, so Vmin is equal to the Abbe number of the second lens E2.

[0248] The Abbe number of the second lens E2 is V2, and the Abbe number of the third lens E3 is V3, which satisfy the following condition: V2 / V3=0.35.

[0249] The distance from the maximum effective radius position of the object side surface of the first lens E1 to the maximum effective radius position of the image side surface of the first lens E1 parallel to the optical axis is ET1, and the thickness of the first lens E1 on the optical axis is CT1, which satisfies the following condition: ET1 / CT1=0.74.

[0250] The displacement parallel to the optical axis from the intersection of the object side surface of the first lens E1 on the optical axis to the maximum effective radius position of the object side surface of the first lens E1 is SAG1R1, and the curvature radius of the object side surface of the first lens E1 is R1, which satisfies the following condition: 10×SAG1R1 / R1=0.56.

[0251] The displacement parallel to the optical axis from the intersection of the object side surface of the first lens E1 on the optical axis to the maximum effective radius position of the object side surface of the first lens E1 is SAG1R1, and the thickness of the first lens E1 on the optical axis is CT1, which satisfies the following condition: SAG1R1 / CT1=0.17.

[0252] The maximum effective radius of the object-side surface of the first lens E1 is Y1R1, and the maximum effective radius of the image-side surface of the second lens E2 is Y2R2, which satisfy the following condition: Y2R2 / Y1R1=1.17.

[0253] The maximum effective radius of the object-side surface of the first lens E1 is Y1R1, and the maximum imaging height of the optical imaging lens system is ImgH, which satisfies the following condition: Y1R1 / ImgH=0.24.

[0254] Please refer to Table 1A and Table 1B below.

[0255]

[0256]

[0257]

[0258] Table 1A Figure 1 The 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 18 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 A30 represent the 4th to 30th 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.

[0259] <Second Embodiment>

[0260] 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 3It can be seen that the imaging device 2 includes an optical imaging lens system (not labeled) and an electronic photosensitive element IS. The optical imaging lens system includes an aperture ST, a first lens E1, a stop S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter element E7 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 system includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other lenses inserted between the lenses.

[0261] The first lens E1 has positive 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, and its image-side surface has a convex critical point at an off-axis position.

[0262] 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 one inflection point, and its image-side surface has two inflection points.

[0263] The third lens E3 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 two inflection points, its image-side surface has two inflection points, 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.

[0264] The fourth lens element E4 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 five inflection points, its image-side surface has two inflection points, and its object-side surface has a concave critical point at an off-axis position.

[0265] The fifth lens E5 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, and both surfaces are aspherical. Its object-side surface has three inflection points, its image-side surface has three inflection points, 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.

[0266] The sixth lens E6 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, and both surfaces are aspherical. Its object-side surface has five inflection points, its image-side surface has three inflection points, its object-side surface has a concave critical point and a convex critical point at an off-axis position, and its image-side surface has a convex critical point at an off-axis position.

[0267] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens system.

[0268] Please refer to Table 2A and Table 2B below.

[0269]

[0270]

[0271]

[0272]

[0273] 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 the following Table 2C are the same as those in the first embodiment and are not repeated here.

[0274]

[0275] <Third Embodiment>

[0276] 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 5 It can be seen that the imaging device 3 includes an optical imaging lens system group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens system group includes an aperture ST, a first lens E1, a stop S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter element E7 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 system group includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other lenses inserted between the lenses.

[0277] The first lens E1 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 image-side surface has an inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0278] 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 one 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.

[0279] The third lens E3 has positive 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, and both surfaces are aspherical. Its object-side surface has two inflection points, its image-side surface has two inflection points, its object-side surface has a concave critical point and a convex critical point at an off-axis position, and its image-side surface has a convex critical point at an off-axis position.

[0280] The fourth lens E4 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 two inflection points, and its image-side surface has two inflection points.

[0281] The fifth lens element E5 has positive 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 two inflection points, its image-side surface has two inflection points, 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.

[0282] The sixth lens E6 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 two inflection points, its image-side surface has two inflection points, its object-side surface has a concave critical point and a convex critical point at an off-axis position, and its image-side surface has a convex critical point at an off-axis position.

[0283] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens system.

[0284] Please refer to Table 3A and Table 3B below.

[0285]

[0286]

[0287]

[0288]

[0289] 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 the following Table 3C are the same as those in the first embodiment and are not repeated here.

[0290]

[0291]

[0292] <Fourth Embodiment>

[0293] 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 system group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens system group includes an aperture ST, a first lens E1, a stop S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter element E7 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 system group includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other lenses inserted between the lenses.

[0294] The first lens E1 has positive 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 two inflection points, its image-side surface has one inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0295] 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 one inflection point, and its image-side surface has two inflection points.

[0296] The third lens E3 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 two inflection points, its image-side surface has one inflection point, and its object-side surface has a concave critical point at an off-axis position.

[0297] The fourth lens E4 has positive 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 two inflection points, and its image-side surface has three inflection points.

[0298] The fifth lens E5 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, and both surfaces are aspherical. Its object-side surface has three inflection points, its image-side surface has three inflection points, 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.

[0299] The sixth lens E6 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, and both surfaces are aspherical. Its object-side surface has four inflection points, its image-side surface has four inflection points, its object-side surface has a concave critical point and a convex critical point at an off-axis position, and its image-side surface has a convex critical point at an off-axis position.

[0300] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens system.

[0301] Please refer to Table 4A and Table 4B below.

[0302]

[0303]

[0304]

[0305]

[0306] 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 the following Table 4C are the same as those in the first embodiment and are not repeated here.

[0307]

[0308] <Fifth Embodiment>

[0309] Please refer to Figures 9 and 10 ,in Fig. 9 A 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. 9It can be seen that the imaging device 5 includes an optical imaging lens system group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens system group includes an aperture ST, a first lens E1, a stop S1, a second lens E2, a stop S2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter element E7 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 system group includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other lenses inserted between the lenses.

[0310] The first lens E1 has positive 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 image-side surface has an inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0311] 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. Its object-side surface has two inflection points, its image-side surface has two inflection points, and its object-side surface has a concave critical point at an off-axis position.

[0312] The third lens E3 has positive 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, and both surfaces are aspherical. Its object-side surface has two inflection points, its image-side surface has two inflection points, its object-side surface has a concave critical point and a convex critical point at an off-axis position, and its image-side surface has a concave critical point and a convex critical point at an off-axis position.

[0313] The fourth lens E4 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 two inflection points, and its image-side surface has two inflection points.

[0314] The fifth lens E5 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 two inflection points, its image-side surface has three inflection points, 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.

[0315] The sixth lens E6 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, and both surfaces are aspherical. Its object-side surface has four inflection points, its image-side surface has two inflection points, its object-side surface has a concave critical point and a convex critical point at an off-axis position, and its image-side surface has a convex critical point at an off-axis position.

[0316] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens system.

[0317] Please refer to Table 5A and Table 5B below.

[0318]

[0319]

[0320]

[0321] 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 the following Table 5C are the same as those in the first embodiment and are not repeated here.

[0322]

[0323]

[0324] <Sixth Embodiment>

[0325] 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 system group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens system group includes an aperture ST, a first lens E1, a stop S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter element E7 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 system group includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other lenses inserted between the lenses.

[0326] The first lens E1 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 has two inflection points.

[0327] 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 one inflection point, and its image-side surface has two inflection points.

[0328] The third lens E3 has positive 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 two inflection points, its image-side surface has two inflection points, 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 fourth lens E4 has positive 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 two inflection points, its image-side surface has three inflection points, and its image-side surface has a concave critical point at an off-axis position.

[0330] The fifth lens E5 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, and both surfaces are aspherical. Its object-side surface has three inflection points, its image-side surface has three inflection points, 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.

[0331] The sixth lens E6 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 two inflection points, its image-side surface has four inflection points, 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.

[0332] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens system.

[0333] Please refer to Table 6A and Table 6B below.

[0334]

[0335]

[0336]

[0337]

[0338] 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 the following Table 6C are the same as those in the first embodiment and are not repeated here.

[0339]

[0340]

[0341] <Seventh Embodiment>

[0342] 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 system group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens system group includes an aperture ST, a first lens E1, a stop S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter element E7 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 system group includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other lenses inserted between the lenses.

[0343] The first lens E1 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 concave near the optical axis. Both surfaces are aspherical. Its image-side surface has two inflection points, and its image-side surface has a convex critical point at an off-axis position.

[0344] 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 one inflection point, its image-side surface has two inflection points, and its image-side surface has a convex critical point at an off-axis position.

[0345] The third lens E3 has positive 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, and both surfaces are aspherical. Its object-side surface has two inflection points, its image-side surface has two inflection points, its object-side surface has a concave critical point at an off-axis position, and its image-side surface has a concave critical point and a convex critical point at an off-axis position.

[0346] The fourth lens E4 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 two inflection points, and its image-side surface has two inflection points.

[0347] The fifth lens E5 has positive 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 three inflection points, its image-side surface has three inflection points, 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.

[0348] The sixth lens E6 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, and both surfaces are aspherical. Its object-side surface has five inflection points, its image-side surface has three inflection points, its object-side surface has a concave critical point and a convex critical point at an off-axis position, and its image-side surface has a convex critical point at an off-axis position.

[0349] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens system.

[0350] Please refer to Table 7A and Table 7B below.

[0351]

[0352]

[0353]

[0354]

[0355] 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 the following Table 7C are the same as those in the first embodiment and are not repeated here.

[0356]

[0357] <Eighth Embodiment>

[0358] 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.15It can be seen that the imaging device 8 includes an optical imaging lens system group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens system group includes an aperture ST, a first lens E1, a stop S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter element E7 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 system group includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other lenses inserted between the lenses.

[0359] The first lens E1 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 two inflection points, its image-side surface has one inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0360] 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 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.

[0361] The third lens E3 has positive 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 two inflection points, its image-side surface has two inflection points, 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.

[0362] The fourth lens E4 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 two inflection points, and its image-side surface has two inflection points.

[0363] The fifth lens element E5 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 two inflection points, its image-side surface has two inflection points, 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.

[0364] The sixth lens E6 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 four inflection points, its image-side surface has three inflection points, 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.

[0365] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens system.

[0366] Please refer to Table 8A and Table 8B below.

[0367]

[0368]

[0369]

[0370]

[0371] 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 the following Table 8C are the same as those in the first embodiment and are not repeated here.

[0372]

[0373]

[0374] <Ninth Embodiment>

[0375] 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 system group (not separately labeled) and an electronic photosensitive element IS. The optical imaging lens system group includes an aperture ST, a first lens E1, a stop S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter element E7 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 system group includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other lenses inserted between the lenses.

[0376] The first lens E1 has positive 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 two inflection points, its image-side surface has one inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0377] The second lens E2 has positive 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, and both surfaces are aspherical. Its object-side surface has two inflection points, its image-side surface has two inflection points, its object-side surface has a concave critical point at an off-axis position, and its image-side surface has a concave critical point and a convex critical point at an off-axis position.

[0378] 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 one inflection point, its image-side surface has two inflection points, and its image-side surface has a convex critical point at an off-axis position.

[0379] The fourth lens E4 has positive 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 four inflection points, and its image-side surface has two inflection points.

[0380] The fifth lens E5 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, and both surfaces are aspherical. Its object-side surface has three inflection points, its image-side surface has three inflection points, 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.

[0381] The sixth lens E6 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 five inflection points, its image-side surface has three inflection points, 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.

[0382] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens system.

[0383] Please refer to Table 9A and Table 9B below.

[0384]

[0385]

[0386]

[0387]

[0388] 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 the following Table 9C are the same as those in the first embodiment and are not repeated here.

[0389]

[0390] <Tenth Embodiment>

[0391] Please refer to Figures 19 to 20 ,in Fig.19 FIG. 1 is a schematic diagram of an imaging device according to a tenth embodiment of the present disclosure. Fig. 20 From left to right are the spherical aberration, astigmatism and distortion curves of the tenth embodiment. Fig.19 It can be seen that the imaging device 10 includes an optical imaging lens system (not labeled) and an electronic photosensitive element IS. The optical imaging lens system includes an aperture ST, a first lens E1, a stop S1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter element E7 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 system includes six lenses (E1, E2, E3, E4, E5, E6), and there are no other lenses inserted between the lenses.

[0392] The first lens E1 has positive 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 image-side surface has an inflection point, and its image-side surface has a convex critical point at an off-axis position.

[0393] 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, 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.

[0394] The third lens E3 has positive 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 one inflection point, its image-side surface has two inflection points, 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.

[0395] The fourth lens E4 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 two inflection points, and its image-side surface has two inflection points.

[0396] The fifth lens E5 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 three inflection points, its object-side surface has a concave critical point and a convex critical point at an off-axis position, and its image-side surface has a convex critical point at an off-axis position.

[0397] The sixth lens E6 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 four inflection points, its image-side surface has two inflection points, 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.

[0398] The filter element E7 is made of glass and is disposed between the sixth lens E6 and the imaging surface IMG, and does not affect the focal length of the optical imaging lens system.

[0399] Please refer to Table 10A and Table 10B below.

[0400]

[0401]

[0402]

[0403] In the tenth 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 the following table 10C are the same as those in the first embodiment and are not repeated here.

[0404]

[0405] <Eleventh Embodiment>

[0406] Please refer to Fig.21, is a three-dimensional schematic diagram of an imaging device according to the eleventh 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 system assembly of the first embodiment, a lens barrel (not separately labeled) for carrying the optical imaging lens system assembly, and a support device (Holder Member, not separately labeled). The imaging lens 101 can also be configured with the optical imaging lens system assembly 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.

[0407] 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 system group, and can truly present the good imaging quality of the optical imaging lens system group.

[0408] 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.

[0409] <Twelfth Embodiment>

[0410] Please refer to Figure 22 to Figure 23 ,in 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, and Fig.23 Draw Fig. 22 A three-dimensional schematic diagram of the other side of the electronic device.

[0411] 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 eleventh embodiment. Fig. 22 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.23 As 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 system set 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 lenses 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 set of the optical imaging lens system set disclosed herein, a lens barrel for carrying the optical lens set, and a supporting device.

[0412] 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.23 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.

[0413] <Thirteenth Embodiment>

[0414] Please refer to Figure 24 to Figure 26 ,in Fig.24A three-dimensional schematic diagram of one side of an electronic device according to a thirteenth embodiment of the present disclosure is shown. Fig.25 Draw Fig.24 A three-dimensional schematic diagram of the other side of the electronic device, and Fig.26 Draw Fig.24 A system block diagram of an electronic device.

[0415] 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 imaging device 100h, the flash module 301, the focus auxiliary module 302, the image signal processor 303 (Image Signal Processor), the display module 304 and the image software processor 305 of the eleventh embodiment. The imaging device 100, the imaging device 100d and the imaging device 100e are all disposed on the same side of the electronic device 300. The focus auxiliary 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 100f, the imaging device 100g, the imaging device 100h 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 100f, the imaging device 100g and the imaging device 100h can be used as a front lens to provide a Selfie function, but the present disclosure is not limited thereto. In addition, the imaging device 100d, the imaging device 100e, the imaging device 100f, the imaging device 100g and the imaging device 100h can all include the optical imaging lens system set disclosed in the present disclosure and can all have a similar structural configuration as the imaging device 100. In detail, the imaging device 100d, the imaging device 100e, the imaging device 100f, the imaging device 100g and the imaging device 100h 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, 100g and 100h may each include an optical lens assembly of the optical imaging lens system disclosed herein, a lens barrel for carrying the optical lens assembly and a supporting device.

[0416] 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 telephoto imaging device, the imaging device 100f is a wide-angle imaging device, the imaging device 100g is an ultra-wide-angle imaging device, and the imaging device 100h is a time-of-flight ranging imaging device. The imaging devices 100, 100d, and 100e 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 100e is a telephoto imaging device having an optical path turning element such as a reflective element, so that the total length of the imaging device 100e is not limited by the thickness of the electronic device 300. In addition, the imaging device 100h can obtain depth information of the image. The electronic device 300 is taken as an example to include a plurality of imaging devices 100 , 100 d , 100 e , 100 f , 100 g , and 100 h , but the number and configuration of the imaging devices are not intended to limit the present disclosure.

[0417] When the user takes a photo of the object 306, the electronic device 300 uses the image capturing device 100, the image capturing device 100d or the image capturing device 100e 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 image lens system 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 100f, the image capturing device 100g or the image capturing device 100h to take photos. The display module 304 can use a touch screen to cooperate with the diverse functions of the image software processor 305 to perform image capture and image processing (or a physical capture button can be used for shooting). The image processed by the image software processor 305 can be displayed on the display module 304.

[0418] <Fourteenth Embodiment>

[0419] Please refer to Fig. 27 , is a three-dimensional schematic diagram illustrating one side of an electronic device according to the fourteenth embodiment of the present disclosure.

[0420] In the present embodiment, the electronic device 400 is a smart phone. The electronic device 400 comprises the imaging device 100, the imaging device 100i, 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 flash module 401, the focus assist module, the image signal processor, the display module and the image software processor (not shown) of the eleventh embodiment. The imaging device 100, the imaging device 100i, the imaging device 100j, the imaging device 100k, the imaging device 100m, the imaging device 100n, the imaging device 100p, the imaging device 100q and the imaging device 100r are all disposed on the same side of the electronic device 400, and the display module is disposed on the other side of the electronic device 400. Furthermore, the imaging device 100i, the imaging device 100j, the imaging device 100k, the imaging device 100m, the imaging device 100n, the imaging device 100p, the imaging device 100q and the imaging device 100r may all include the optical imaging lens system assembly disclosed herein and may all have a similar structural configuration to the imaging device 100, which will not be described in detail herein.

[0421] The imaging device 100 is a wide-angle imaging device, the imaging device 100i is a telephoto imaging device, the imaging device 100j is a telephoto imaging device, the imaging device 100k is a wide-angle imaging device, the imaging device 100m is an ultra-wide-angle imaging device, the imaging device 100n is an ultra-wide-angle imaging device, the imaging device 100p is a telephoto imaging device, the imaging device 100q is a telephoto imaging device, and the imaging device 100r is a time-of-flight ranging imaging device. The imaging devices 100, 100i, 100j, 100k, 100m, 100n, 100p and 100q of this 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 100i and the imaging device 100j are telephoto imaging devices having an optical path deflection element such as a reflective element. The optical path deflection element such as a reflective element of the imaging device 100i and the imaging device 100j may have a similar configuration. Figure 30 to Figure 32 The structure of Figure 30 to Figure 32, which will not be described in detail here. In addition, the imaging device 100r can obtain the depth information of the image. The above-mentioned electronic device 400 is taken as an example including multiple imaging devices 100, 100i, 100j, 100k, 100m, 100n, 100p, 100q, and 100r, but the number and configuration of the imaging devices are not used to limit the present disclosure. When the user shoots the subject, the electronic device 400 uses the imaging device 100, the imaging device 100i, the imaging device 100j, the imaging device 100k, the imaging device 100m, the imaging device 100n, the imaging device 100p, the imaging device 100q, or the imaging device 100r to focus and capture the image, activates the flash module 401 for fill light, and performs subsequent processing in a manner similar to the aforementioned embodiment, which will not be described in detail here.

[0422] The imaging device disclosed herein is not limited to being used in smart phones. 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 only exemplary examples of the actual application of the present disclosure, and do not limit the scope of application of the imaging device disclosed herein.

[0423] 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 system assembly, characterized in that: It includes six lenses. The six 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, and a sixth lens. And each of the six lenses has an object-side surface facing the object side direction and an image-side surface facing the image side direction; Among them, the first lens has a positive refractive power, the fourth lens has a positive refractive power. The image-side surface of the fourth lens is convex near the optical axis. The object-side surface of the fifth lens has at least one concave critical point off the axis. The image-side surface of the fifth lens is concave near the optical axis. The sixth lens has a negative refractive power, and the object-side surface of the sixth lens is convex near the optical axis; Among them, the optical imaging lens system group further includes an aperture. The distance between the first lens and the second lens on the optical axis is T12. The distance between the second lens and the third lens on the optical axis is T23. The thickness of the first lens on the optical axis is CT1. The thickness of the fourth lens on the optical axis is CT4. The minimum Abbe number among all the lenses in the optical imaging lens system group is Vmin. The focal length of the optical imaging lens system group is f. The focal length of the second lens is f2. The focal length of the fourth lens is f4. The distance from the aperture to the image-side surface of the sixth lens on the optical axis is SD, and it satisfies the following conditions: 0 < 10×T23 / CT1 < 3.20; 10.0 < Vmin < 21.5; -0.90 < f4 / f2 < 0.15; 0.10 < (CT4 - T12) / CT1 < 0.50; and 0.85 < SD / f < 1.

50.

2. The optical imaging lens system according to claim 1, wherein: The object-side surface of the fifth lens is convex near the optical axis. The image-side surface of the sixth lens has at least one inflection point. The focal length of the optical imaging lens system group is f. The focal length of the second lens is f2. The focal length of the fourth lens is f4. The focal length of the fifth lens is f5, and it satisfies the following conditions: 0.05 < (|f / f2| + |f / f5|) / |f / f4| < 1.

50.

3. The optical imaging lens system according to claim 1, wherein: The maximum viewing angle of the optical imaging lens system group is FOV, and it satisfies the following conditions: 82.0 degrees < FOV < 110.0 degrees.

4. The optical imaging lens system according to claim 1, wherein: The radius of curvature of the image-side surface of the second lens is R4. The radius of curvature of the object-side surface of the sixth lens is R11, and it satisfies the following conditions: 0.10 < (R4 - R11) / (R4 + R11) < 2.

00.

5. The optical imaging lens system according to claim 1, wherein: 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 sixth lens is R11, and it satisfies the following conditions: 0 < (R1 - R11) / (R1 + R11) < 1.

00.

6. The optical imaging lens system according to claim 1, wherein: The distance between the first lens and the second lens on the optical axis is T12. The distance between the second lens and the third lens on the optical axis is T23, and it satisfies the following conditions: 0.01 < T23 / T12 < 0.

70.

7. The optical imaging lens system according to claim 1, wherein: The focal length of the optical imaging lens system group is f. The radius of curvature of the object-side surface of the fifth lens is R9. The radius of curvature of the image-side surface of the fifth lens is R10, and it satisfies the following conditions: 0.50<|f / R9|+f / R10<3.

00.

8. The optical imaging lens system according to claim 1, wherein: The object side surface of the third lens is convex at the near optical axis, the curvature radius of the image side surface of the second lens is R4, and the curvature radius of the object side surface of the third lens is R5, which meets the following conditions: 0.10 <R5 / R4<1.00。 9. The optical imaging lens system according to claim 1, wherein: The distance from the maximum effective radius position of the object side surface of the first lens to the maximum effective radius position of the image side surface of the first lens parallel to the optical axis is ET1, and the thickness of the first lens on the optical axis is CT1, which satisfies the following conditions: 0.60 <ET1 / CT1<1.00。 10. The optical imaging lens system according to claim 1, wherein: The displacement parallel to the optical axis from the intersection of the object side surface of the first lens on the optical axis to the maximum effective radius position of the object side surface of the first lens is SAG1R1, and the thickness of the first lens on the optical axis is CT1, which satisfies the following conditions: 0.01 <SAG1R1 / CT1<0.35。 11. The optical imaging lens system according to claim 1, wherein: The maximum effective radius of the object side surface of the first lens is Y1R1, and the maximum imaging height of the optical imaging lens system is ImgH, which meets the following conditions: 0.15 <Y1R1 / ImgH<0.35。 12. The optical imaging lens system according to claim 1, wherein: The maximum effective radius of the object side surface of the first lens is Y1R1, and the maximum effective radius of the image side surface of the second lens is Y2R2, which meets the following conditions: 0.80 <Y2R2 / Y1R1<1.40。 13. An imaging device, characterized in that: Include: The optical imaging lens system according to claim 1; and An electronic photosensitive element is disposed on an imaging surface of the optical imaging lens system.

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

15. An optical imaging lens system assembly, characterized in that: The invention comprises six lenses, wherein the six lenses are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from the object side to the image side along the optical path, and the six lenses respectively have an object side surface facing the object side direction and an image side surface facing the image side direction; The first lens has positive refractive power, the fourth lens has positive refractive power, the image side surface of the fourth lens is convex at the near optical axis, the image side surface of the fifth lens is concave at the near optical axis, the sixth lens has negative refractive power, and the object side surface of the sixth lens is convex at the near optical axis; The optical imaging lens system further comprises an aperture, which is disposed between a subject and the first lens. The focal length of the optical imaging lens system is f, the focal length of the second lens is f2, 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 interval between the second lens and the third lens on the optical axis is T23, the thickness of the first lens on the optical axis is CT1, the thickness of the fourth lens on the optical axis is CT4, the minimum Abbe number of all lenses in the optical imaging lens system is Vmin, the Abbe number of the second lens is V2, and the Abbe number of the third lens is V3, which satisfies the following conditions: 0<(|f / f2|+|f / f5|) / |f / f4|<1.60; 0 < 10×T23 / CT1 < 3.00; 10.0 < Vmin < 20.5; 0.01 < CT4 / CT1 < 0.85; -2.00 < f / f6 < -0.36; and 0.01 < V2 / V3 < 0.

90.

16. The optical imaging lens system according to claim 15, wherein: At least one of the object-side surface and the image-side surface of the fifth lens has at least one inflection point, the image-side surface of the sixth lens has at least one convex critical point off the axis, the focal length of the optical imaging lens system group is f, and the radius of curvature of the object-side surface of the first lens is R1, which satisfies the following conditions: 0.70 < f / R1 < 2.

00.

17. The optical imaging lens system according to claim 15, wherein: The distance from the object-side surface of the first lens to an imaging plane on the optical axis is TL, and the maximum imaging height of the optical imaging lens system group is ImgH, which satisfies the following conditions: 0.50 < TL / ImgH < 1.

40.

18. The optical imaging lens system according to claim 15, wherein: The radius of curvature of the image-side surface of the second lens is R4, and the radius of curvature of the image-side surface of the fifth lens is R10, which satisfies the following conditions: 0 < (R4 - R10) / (R4 + R10) < 2.

00.

19. The optical imaging lens system according to claim 15, wherein: The entrance pupil diameter of the optical imaging lens system group is EPD, the thickness of the first lens on the optical axis is CT1, the thickness of the fourth lens on the optical axis is CT4, and the distance between the first lens and the second lens on the optical axis is T12, which satisfies the following conditions: 1.10 < EPD / (CT1 + T12) < 2.00; and 0.30 < T12 / CT4 < 1.

00.

20. The optical imaging lens system according to claim 15, wherein: The focal length of the optical imaging lens system group is f, the focal length of the first lens is f1, the focal length of the third lens is f3, and the focal length of the sixth lens is f6, which satisfies the following conditions: 0.90 < (|f / f3| + |f / f6|) / |f / f1| < 2.

00.

21. The optical imaging lens system according to claim 15, wherein: The distance between the fifth lens and the sixth lens on the optical axis is T56, and the thickness of the first lens on the optical axis is CT1, which satisfies the following conditions: 0.30 < T56 / CT1 < 1.

00.

22. The optical imaging lens system according to claim 15, wherein: The focal length of the sixth lens is f6, the radius of curvature of the object-side surface of the sixth lens is R11, and the radius of curvature of the image-side surface of the sixth lens is R12, which satisfies the following conditions: 5.00 < |f6 / R11| + |f6 / R12| < 20.

00.

23. An optical imaging lens system assembly, characterized in that: It includes six lenses. The six 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, and the sixth lens, and the six 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 positive refractive power, the second lens has a negative refractive power, the fourth lens has a positive refractive power, the image-side surface of the fourth lens is convex near the optical axis, the image-side surface of the fifth lens is concave near the optical axis, the sixth lens has a negative refractive power, and the object-side surface of the sixth lens is convex near the optical axis; Wherein, the optical imaging lens system group further includes a diaphragm, the diaphragm is disposed between an object to be photographed and the first lens, the focal length of the optical imaging lens system group is f, the focal length of the second lens is f2, the focal length of the fourth lens is f4, the focal length of the fifth lens is f5, the minimum Abbe number among all the lenses of the optical imaging lens system group is Vmin, the thickness of the first lens on the optical axis is CT1, the thickness of the fourth lens on the optical axis is CT4, the interval distance between the first lens and the second lens on the optical axis is T12, the interval distance between the second lens and the third lens on the optical axis is T23, the interval distance between the third lens and the fourth lens on the optical axis is T34, the interval 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, and they satisfy the following conditions: 0 < (|f / f2| + |f / f5|) / |f / f4| < 1.60; 10.0 < Vmin < 20.5; 0.10 < (CT4 - T12) / CT1 < 0.50; 0.10 < R11 / R10 < 1.50; 0.30 < T12 / T34 < 2.00; and 0.01 < (T23 + T56) / CT1 < 1.

00.

24. The optical imaging lens system according to claim 23, wherein: The interval distance between the first lens and the second lens on the optical axis is T12, the interval distance between the second lens and the third lens on the optical axis is T23, the interval distance between the fourth lens and the fifth lens on the optical axis is T45, and they satisfy the following conditions: 0.01 < (T23 + T45) / T12 < 1.

60.

25. The optical imaging lens system according to claim 23, wherein: The radius of curvature of the object side surface of the first lens is R1, the radius of curvature of the image side surface of the sixth lens is R12, and they satisfy the following conditions: 0.01 < R12 / R1 < 0.

60.

26. The optical imaging lens system according to claim 23, wherein: The radius of curvature of the image side surface of the second lens is R4, the radius of curvature of the object side surface of the sixth lens is R11, and they satisfy the following conditions: 0.01 < |R11 / R4| < 0.

50.

27. The optical imaging lens system according to claim 23, wherein: The focal length of the third lens is f3, the focal length of the sixth lens is f6, and they satisfy the following conditions: 0.45 < |f6 / f3| < 2.

00.

28. The optical imaging lens system according to claim 23, wherein: The focal length of the optical imaging lens system group is f, the radius of curvature of the image side surface of the fifth lens is R10, and they satisfy the following conditions: 0.50 < f / R10 < 2.

00.

29. The optical imaging lens system according to claim 23, wherein: The displacement amount parallel to the optical axis from the intersection point of the object side surface of the first lens on the optical axis to the maximum effective radius position of the object side surface of the first lens is SAG1R1, the radius of curvature of the object side surface of the first lens is R1, and they satisfy the following conditions: 0.10 < 10×SAG1R1 / R1 < 1.

50.

30. The optical imaging lens system according to claim 23, wherein: The focal length of the optical imaging lens system is f, the focal length of the second lens is f2, 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 distance between the first lens and the second lens on the optical axis is T12, 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 fifth lens and the sixth lens on the optical axis is T56, the thickness of the first lens on the optical axis is CT1, the thickness of the fourth lens on the optical axis is CT4, the minimum Abbe number of all lenses in the optical imaging lens system is Vmin, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the distance from the aperture to the image side surface of the sixth lens on the optical axis is SD, the radius of curvature of the image side surface of the fifth lens is R10, and the radius of curvature of the object side surface of the sixth lens is R11, which satisfies the following conditions: 0.26≤(|f / f2|+|f / f5|) / |f / f4|≤1.22; 0.50≤10×T23 / CT1≤2.25; 16.3≤Vmin≤19.5; -0.73≤f4 / f2≤0.05; 0.15≤(CT4-T12) / CT1≤0.43; 0.95≤SD / f≤1.24; 0.40≤CT4 / CT1≤0.80; -1.13≤f / f6≤-0.50; 0.29≤V2 / V3≤0.52; 0.23≤R11 / R10≤1.14; 0.53≤T12 / T34≤1.27; and 0.47≤(T23+T56) / CT1≤0.87.

Images