Photographic optical lens assembly, image capturing device and electronic device

Abstract

The present disclosure discloses a photographic optical lens assembly, which includes three lenses. The three lenses are sequentially arranged along an optical path from an object side to an image side as a first lens, a second lens and a third lens. The three lenses respectively have an object side surface facing an object side direction and an image side surface facing an image side direction. The first lens has a positive refractive power, the object side surface of the first lens is convex at a vicinity of an optical axis, and the image side surface of the first lens is concave at the vicinity of the optical axis. The third lens has a negative refractive power, the image side surface of the third lens is concave at the vicinity of the optical axis, and the image side surface of the third lens has at least one inflection point. When certain conditions are met, the photographic optical lens assembly can simultaneously meet the requirements of miniaturization and high imaging quality. The present disclosure also discloses an image capturing device having the above photographic optical lens assembly and an electronic device having the image capturing device.

Description

Technical Field

[0001] This disclosure relates to a photographic optical lens assembly, an image acquisition device, and an electronic device, particularly a photographic optical lens assembly and an image acquisition device suitable for electronic devices. Background Technology

[0002] With advancements in semiconductor technology, the performance of electronic image sensors has improved, and pixels can be made smaller. As a result, optical lenses with high image quality have become an indispensable component.

[0003] With the rapid advancement of technology, electronic devices equipped with optical lenses are finding increasingly wider applications, leading to more diverse requirements for these lenses. Since existing optical lenses often struggle to achieve a balance between image quality, sensitivity, aperture size, size, and viewing angle, this invention provides an optical lens with high image quality to meet these demands. Summary of the Invention

[0004] This disclosure provides a photographic optical lens assembly, an image capturing device, and an electronic device. The photographic optical lens assembly comprises three lenses arranged sequentially along the optical path from the object side to the image side. Under certain conditions, the photographic optical lens assembly provided by this disclosure can simultaneously meet the requirements of miniaturization and high imaging quality. This disclosure is applicable to the visible light and infrared light bands, possesses high imaging quality and image recognition capabilities, and is suitable for fields such as industrial inspection, monitoring, or dynamic eye tracking and positioning.

[0005] This disclosure provides a photographic optical lens assembly comprising three lenses. The three lenses are sequentially arranged from the object side to the image side along the optical path as a first lens, a second lens, and a third lens. Each of the three lenses has an object-side surface facing the object side and an image-side surface facing the image side. Preferably, the first lens has positive refractive power. Preferably, the object-side surface of the first lens is convex near the optical axis. Preferably, the image-side surface of the first lens is concave near the optical axis. Preferably, the third lens has negative refractive power. Preferably, the image-side surface of the third lens is concave near the optical axis. Preferably, the image-side surface of the third lens has at least one inflection point. The Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the focal length of the second lens is f2, the focal length of the third lens is f3, the thickness of the third lens on the optical axis is CT3, the distance between the first and second lenses on the optical axis is T12, the radius of curvature of the object-side surface of the third lens is R5, and the radius of curvature of the image-side surface of the third lens is R6. Preferably, it satisfies the following conditions:

[0006] 10.0 <V2+V3<70.0;

[0007] 0 < 10 × |f3 / f2| < 4.50;

[0008] 0.40 < CT3 / T12 < 2.50; and

[0009] 0 < (R5 + R6) / (R5 - R6) < 2.00.

[0010] The present disclosure further provides a photographic optical lens group, comprising three lenses. The three lenses are, in order from the object side to the image side along the optical path, a first lens, a second lens, and a third lens. The three 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 object-side surface of the first lens is convex near the optical axis. Preferably, the image-side surface of the first lens is concave near the optical axis. Preferably, the third lens has a negative refractive power. The image-side surface of the third lens is concave near the optical axis. Preferably, the image-side surface of the third lens has at least one critical point off the axis. The Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the focal length of the photographic optical lens group is f, the focal length of the second lens is f2, the focal length of the third lens is f3, and the radius of curvature of the image-side surface of the first lens is R2, which preferably satisfies the following conditions:

[0011] 10.0 < V2 + V3 < 70.0;

[0012] 0 < 10 × |f3 / f2| < 4.50; and

[0013] 0.80 < f / R2 < 2.50.

[0014] The Abbe number of the first lens is V1, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the Abbe number of the i-th lens is Vi, the refractive index of the first lens is N1, the refractive index of the second lens is N2, the refractive index of the third lens is N3, the refractive index of the i-th lens is Ni. At least one lens in the photographic optical lens group preferably satisfies the following conditions:

[0015] 5.00 < Vi / Ni < 14.50, where i = 1, 2, or 3.

[0016] The present disclosure further provides a photographic optical lens group, which includes three lenses. The three lenses are, in order from the object side to the image side along the optical path, a first lens, a second lens, and a third lens. The three 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 object-side surface of the first lens is convex near the optical axis. Preferably, the image-side surface of the first lens is concave near the optical axis. Preferably, the third lens has a negative refractive power. Preferably, the image-side surface of the third lens is concave near the optical axis. Preferably, the image-side surface of the third lens has at least one critical point off the axis. The Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the focal length of the second lens is f2, the focal length of the third lens is f3, the radius of curvature of the image-side surface of the first lens is R2, the radius of curvature of the image-side surface of the third lens is R6, the distance on the optical axis from the object-side surface of the first lens to the image-side surface of the third lens is TD, and the entrance pupil diameter of the photographic optical lens group is EPD, which preferably satisfies the following conditions:

[0017] 10.0 < V2 + V3 < 70.0;

[0018] 0 < 10×|f3 / f2| < 7.00;

[0019] 0 < R2 / R6 < 2.00; and

[0020] 1.00 < TD / EPD < 1.80.

[0021] The present disclosure provides an imaging device, which includes the aforementioned photographic optical lens group and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on the imaging surface of the photographic optical lens group.

[0022] The present disclosure provides an electronic device, which includes the aforementioned imaging device.

[0023] When V2 + V3 satisfies the above conditions, the material configurations of the second lens and the third lens can be adjusted, which helps to balance the converging capabilities of light rays in different wavelength bands.

[0024] When 10×|f / f | satisfies the above conditions, the refractive power configuration of the third lens can be strengthened, and the second lens is used to balance the aberration generated by the third lens.

[0025] When CT3 / T12 satisfies the above conditions, the distance between the first lens and the second lens and the center thickness of the third lens can be balanced, which helps to balance the spatial configurations of the lens group at the object side end and the lens group at the image side end.

[0026] When (R5+R6) / (R5-R6) satisfies the above conditions, the curvature radius of the object-side surface of the third lens and the curvature radius of the image-side surface of the third lens can be effectively balanced, which helps to improve the focusing quality of the imaging light, effectively improve the image curvature and reduce spherical aberration.

[0027] When f / R2 meets the above conditions, the radius of curvature of the image-side surface of the first lens can be adjusted to give the image-side surface of the first lens a strong deflection capability, so as to control the direction of the optical path and reduce aberrations.

[0028] When Vi / Ni meets the above conditions, the dispersion capability of the optical lens can be improved, which helps to balance the phenomenon of excessive refraction of short-wavelength light.

[0029] When R2 / R6 meets the above conditions, the curvature radius of the image-side surface of the first lens and the curvature radius of the image-side surface of the third lens can be effectively balanced, which is beneficial to correcting the peripheral focusing quality.

[0030] When the TD / EPD meets the above conditions, it can balance the lens volume and the amount of light entering the lens, which helps to achieve a balance between lens volume and ambient illumination.

[0031] The foregoing description of the contents of this disclosure and the following description of the embodiments are used to demonstrate and explain the spirit and principles of this disclosure, and to provide a further explanation of the claims of this disclosure. Attached Figure Description

[0032] Figure 1 A schematic diagram of an image-capturing device according to a first embodiment of this disclosure is shown.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[0047] Figure 16 A perspective view of one side of an electronic device according to the ninth embodiment of this disclosure is shown.

[0048] Figure 17 Draw Figure 16 A three-dimensional diagram of the other side of the electronic device.

[0049] Figure 18 A perspective view of one side of an electronic device according to the tenth embodiment of this disclosure is shown.

[0050] Figure 19 Draw Figure 18 A three-dimensional diagram of the other side of the electronic device.

[0051] Figure 20 Draw Figure 18 System block diagram of an electronic device.

[0052] Figure 21 A perspective view of one side of an electronic device according to the eleventh embodiment of this disclosure is shown.

[0053] Figure 22 A perspective view of one side of an electronic device according to the twelfth embodiment of this disclosure is shown.

[0054] Figure 23A schematic diagram illustrating the inflection point and the critical point on the lens surface according to the first embodiment of this disclosure.

[0055] Figure 24 A schematic diagram illustrating parameters Sag2R1, Sag2R2 and Y3R2 in the first embodiment according to this disclosure is shown.

[0056] Figure 25 A schematic diagram illustrating an arrangement of an optical path reversing element in a photographic optical lens assembly, in accordance with the present disclosure.

[0057] Figure 26 A schematic diagram illustrating another configuration of an optical path reversing element in a photographic optical lens assembly, in accordance with the present disclosure.

[0058] Figure 27 A schematic diagram illustrating one configuration of two optical path reversing elements in a photographic optical lens assembly, as disclosed herein.

[0059] [Symbol Explanation]

[0060] 1, 2, 3, 4, 5, 6, 7, 100, 100a, 100b, 100c, 100d, 100e, 100f, 100g, 100h, 100i, 100j, 100k, 100m, 100n, 100p, 100q, 100r, 100s: imaging device

[0061] 101: Imaging Lens

[0062] 102: Drive unit

[0063] 103: Electronic photosensitive element

[0064] 104: Image Stabilization Module

[0065] 200, 300, 400, 500: Electronic devices

[0066] 201, 304: Display module

[0067] 301, 401, 501: Flash module

[0068] 302: Focusing Assist Module

[0069] 303: Image Signal Processor

[0070] 305: Image Software Processor

[0071] 306: Subject

[0072] C: Critical point

[0073] P: Inversion point

[0074] OA1: First optical axis

[0075] OA2: Second optical axis

[0076] OA3: Third optical axis

[0077] LF: Optical path switching element

[0078] LF1: First optical path switching element

[0079] LF2: Second optical path switching element

[0080] LG: Lens Group

[0081] ST: Aperture

[0082] S1, S2: Aperture

[0083] E1: First lens

[0084] E2: Second lens

[0085] E3: Third Lens

[0086] E4: Filter element

[0087] IMG: Imaging Surface

[0088] IS: Electronic photosensitive element

[0089] Sag2R1: The displacement parallel to the optical axis from the point where the object-side surface of the second lens intersects the optical axis to the position of the maximum effective radius of the object-side surface of the second lens.

[0090] Sag2R2: The displacement parallel to the optical axis from the point where the image-side surface of the second lens intersects the optical axis to the position of the maximum effective radius of the image-side surface of the second lens.

[0091] Y3R2: Maximum effective radius of the image-side surface of the third lens Detailed Implementation

[0092] The photographic optical lens group comprises three lenses, which are arranged sequentially from the object side to the image side along the light path as a first lens, a second lens, and a third lens. Each of the three lenses has an object-side surface facing the object side and an image-side surface facing the image side.

[0093] The first lens may have positive refractive power. This helps to converge light rays and reduce volume. The object-side surface of the first lens may be convex near the optical axis. This allows adjustment of the direction of light travel, helping to reduce the overall optical length. The image-side surface of the first lens may be concave near the optical axis. This balances the refractive power of the first lens, improving the light-gathering quality of rays from each field of view at the imaging plane and reducing aberrations.

[0094] The object-side surface of the second lens can be concave near the optical axis. This allows adjustment of the lens's shape and refractive power, helping to improve central image quality. The image-side surface of the second lens can be convex near the optical axis. This allows control over the direction of light rays around the periphery of the second lens, preventing insufficient refraction of light rays in the peripheral areas from hindering effective light focusing.

[0095] The third lens can have negative refractive power. This balances the refractive power of the image-side lens and reduces the back focal length. The object-side surface of the third lens can be concave near the optical axis. This adjusts the incident direction of light rays through the third lens, helping to increase the image area. The image-side surface of the third lens can also be concave near the optical axis. This helps to improve image curvature while compressing the back focal length.

[0096] According to the photographic optical lens assembly disclosed herein, the image-side surface of the third lens may have at least one inflection point. This enhances the ability of the third lens to correct peripheral image aberrations. Please refer to... Figure 23 This is a schematic diagram illustrating the inflection point P on the image-side surface of the third lens E3 according to the first embodiment of this disclosure. Figure 23 The diagram illustrates the inflection point P on the image-side surface of the third lens E3 in the first embodiment of this disclosure, together with the inflection points P on the image-side surfaces of the first lens E1, the second lens E2, and the third lens E3, as an example. However, in each embodiment of this disclosure, each lens surface may have one or more inflection points.

[0097] According to the photographic optical lens assembly disclosed herein, the image-side surface of the third lens may have at least one critical point off-axis. This allows for adjustment of the incident angle of light on the imaging plane, control of peripheral light angles, prevention of vignetting at the image periphery, and reduction of distortion. Please refer to... Figure 23 This is a schematic diagram illustrating the critical point C of the image-side surface of the third lens E3 at the off-axis in the first embodiment of this disclosure. Figure 23 The illustration shows the critical point C on the image-side surface of the third lens E3 at the off-axis in the first embodiment of this disclosure, together with the critical points C on the image-side surface of the second lens E2 and the object-side surface of the third lens E3 at the off-axis, as an example. However, in each embodiment of this disclosure, each lens surface may have one or more critical points at the off-axis.

[0098] 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: 10.0 < V2 + V3 < 70.0. Thereby, the material configuration of the second lens and the third lens can be adjusted, which helps to balance the converging ability between light rays of different wavelength bands. Among them, the following conditions can also be satisfied: 20.0 < V2 + V3 < 65.0. Among them, the following conditions can also be satisfied: 30.0 < V2 + V3 < 63.0. Among them, the following conditions can also be satisfied: 33.00 < V2 + V3 < 62.00. Among them, the following conditions can also be satisfied: 36.7 ≤ V2 + V3 ≤ 60.9.

[0099] The focal length of the second lens is f2, and the focal length of the third lens is f3, which can satisfy the following conditions: 0 < 10 × |f3 / f2| < 7.00. Thereby, the refractive power configuration of the third lens can be strengthened, and the second lens is used to balance the aberration generated by the third lens. Among them, the following conditions can also be satisfied: 0 < 10 × |f3 / f2| < 4.50. Among them, the following conditions can also be satisfied: 0.01 < 10 × |f3 / f2| < 3.00. Among them, the following conditions can also be satisfied: 0.05 < 10 × |f3 / f2| < 2.50. Among them, the following conditions can also be satisfied: 0.11 ≤ 10 × |f3 / f2| ≤ 3.99.

[0100] The thickness of the third lens on the optical axis is CT3, and the distance between the first lens and the second lens on the optical axis is T12, which can satisfy the following conditions: 0.40 < CT3 / T12 < 2.50. Thereby, the distance between the first lens and the second lens and the central thickness of the third lens can be balanced, which helps to balance the spatial configuration of the object-side lens group and the image-side lens group. Among them, the following conditions can also be satisfied: 0.60 < CT3 / T12 < 1.75. Among them, the following conditions can also be satisfied: 0.70 < CT3 / T12 < 1.50. Among them, the following conditions can also be satisfied: 0.81 ≤ CT3 / T12 ≤ 2.10.

[0101] The radius of curvature of the object-side surface of the third lens is R5, and the radius of curvature of the image-side surface of the third lens is R6, which can satisfy the following conditions: 0 < (R5 + R6) / (R5 - R6) < 2.00. Thereby, the radius of curvature of the object-side surface of the third lens and the radius of curvature of the image-side surface of the third lens can be effectively balanced, which helps to improve the light-gathering quality of the imaging light rays, effectively improve the image bending situation and reduce spherical aberration. Among them, the following conditions can also be satisfied: 0.20 < (R5 + R6) / (R5 - R6) < 1.80. Among them, the following conditions can also be satisfied: 0.37 ≤ (R5 + R6) / (R5 - R6) ≤ 1.52.

[0102] The focal length of the photographic optical lens group is f, and the radius of curvature of the image-side surface of the first lens is R2, which can satisfy the following conditions: 0.80 < f / R2 < 2.50. Thus, the radius of curvature of the image-side surface of the first lens can be adjusted so that the image-side surface of the first lens has a strong refraction ability to control the light path direction and reduce aberration. Among them, the following conditions can also be satisfied: 0.90 < f / R2 < 2.30. Among them, the following conditions can also be satisfied: 1.00 < f / R2 < 1.80. Among them, the following conditions can also be satisfied: 1.07 ≤ f / R2 ≤ 2.06.

[0103] The Abbe number of the first lens is V1, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the Abbe number of the i-th lens is Vi, the refractive index of the first lens is N1, the refractive index of the second lens is N2, the refractive index of the third lens is N3, the refractive index of the i-th lens is Ni. At least one lens in the photographic optical lens group can satisfy the following conditions: 5.00 < Vi / Ni < 14.50, where i = 1, 2 or 3. Thus, the dispersion ability of the optical lens can be improved, which helps to balance the phenomenon of excessive refraction of short-wavelength light. Among them, at least one lens in the photographic optical lens group can also satisfy the following conditions: 8.00 < Vi / Ni < 12.50, where i = 1, 2 or 3. Among them, at least one lens in the photographic optical lens group can also satisfy the following conditions: 9.00 < Vi / Ni < 12.00, where i = 1, 2 or 3. Among them, at least one lens in the photographic optical lens group can also satisfy the following conditions: 9.61 ≤ Vi / Ni ≤ 14.34, where i = 1, 2 or 3.

[0104] The radius of curvature of the image-side surface of the first lens is R2, and the radius of curvature of the image-side surface of the third lens is R6, which can satisfy the following conditions: 0 < R2 / R6 < 2.00. Thus, the radius of curvature of the image-side surface of the first lens and the radius of curvature of the image-side surface of the third lens can be effectively balanced, which is beneficial to correcting the peripheral light collection quality. Among them, the following conditions can also be satisfied: 0.50 < R2 / R6 < 1.75. Among them, the following conditions can also be satisfied: 0.60 < R2 / R6 < 1.60. Among them, the following conditions can also be satisfied: 0.69 ≤ R2 / R6 ≤ 1.50.

[0105] The distance from the object-side surface of the first lens to the image-side surface of the third lens on the optical axis is TD, and the entrance pupil diameter of the photographic optical lens group is EPD, which can satisfy the following conditions: 1.00 < TD / EPD < 1.80. Thus, the lens volume and the light incident amount can be balanced, which helps to achieve a balance between the lens volume and the peripheral illuminance. Among them, the following conditions can also be satisfied: 1.30 < TD / EPD < 1.75. Among them, the following conditions can also be satisfied: 1.56 ≤ TD / EPD ≤ 1.68.

[0106] The focal length of the photographic optical lens group is f, the radius of curvature of the object side surface of the second lens is R3, and the radius of curvature of the image side surface of the second lens is R4, which can satisfy the following conditions: 0.30 < |f / R3| + |f / R4| < 1.00. Thereby, the radius of curvature of the object side surface of the second lens and the radius of curvature of the image side surface of the second lens can be effectively balanced, the traveling direction of peripheral light rays can be adjusted, which helps to correct the astigmatism of the photographic optical lens group and reduce the stray light in the optical lens. Among them, the following conditions can also be satisfied: 0.40 < |f / R3| + |f / R4| < 0.90.

[0107] The radius of curvature of the image side surface of the first lens is R2, and the radius of curvature of the object side surface of the second lens is R3, which can satisfy the following conditions: -3.00 < (R2 - R3) / (R2 + R3) < 0. Thereby, the radius of curvature of the image side surface of the first lens and the radius of curvature of the object side of the second lens can be effectively balanced, so that the first lens can cooperate with the second lens, which helps to correct the central spherical aberration and astigmatism. Among them, the following conditions can also be satisfied: -2.60 < (R2 - R3) / (R2 + R3) < -0.25.

[0108] The thickness of the first lens on the optical axis is CT1, and the thickness of the second lens on the optical axis is CT2, which can satisfy the following conditions: 1.30 < CT1 / CT2 < 2.30. Thereby, the central thickness of the first lens and the central thickness of the second lens can be balanced to improve the light condensing effect at the imaging center. Among them, the following conditions can also be satisfied: 1.50 < CT1 / CT2 < 2.00. [[ID=!7]]

[0109] The distance between the second lens and the third lens on the optical axis is T23, and the thickness of the third lens on the optical axis is CT3, which can satisfy the following conditions: 0.50 < T23 / CT3 < 1.30. Thereby, the distance between the second lens and the third lens and the central thickness of the third lens can be balanced, which helps to adjust the light path direction at the image side end and increase the design freedom. Among them, the following conditions can also be satisfied: 0.70 < T23 / CT3 < 1.15.

[0110] The Abbe number of the second lens is V2, which can satisfy the following conditions: 10.0 < V2 < 25.0. Thereby, the chromatic aberration generated by the photographic optical lens group can be corrected and it helps to improve the imaging quality. Among them, the following conditions can also be satisfied: 14.0 < V2 < 20.0.

[0111] The maximum effective radius of the image-side surface of the third lens is Y3R2, and the thickness of the third lens on the optical axis is CT3, which can satisfy the following conditions: 1.50 < Y3R2 / CT3 < 4.00. Thereby, the thickness of the third lens and the height of the optical effective radius on the image side of the third lens can be adjusted, the traveling direction of light at the image-side end can be balanced, and the incident angle on the imaging surface can be reduced. Among them, the following conditions can also be satisfied: 1.80 < Y3R2 / CT3 < 3.80. Please refer to Figure 24 , which is a schematic diagram showing the parameter Y3R2 in the first embodiment of the present disclosure.

[0112] The displacement parallel to the optical axis from the intersection of the object-side surface of the second lens on the optical axis to the position of the maximum effective radius of the object-side surface of the second lens is Sag2R1, and the displacement parallel to the optical axis from the intersection of the image-side surface of the second lens on the optical axis to the position of the maximum effective radius of the image-side surface of the second lens is Sag2R2. The thickness of the second lens on the optical axis is CT2, which can satisfy the following conditions: 0.03 < (|Sag2R1| + |Sag2R2|) / CT2 < 0.25. Thereby, the bending degrees of the peripheral surface shapes on the object side and the image side of the second lens can be balanced, the refraction angle of light can be alleviated, and total reflection can be avoided. Among them, the following conditions can also be satisfied: 0.05 < (|Sag2R1| + |Sag2R2|) / CT2 < 0.22. Please refer to Figure 24 , which is a schematic diagram showing the parameters Sag2R1 and Sag2R2 in the first embodiment of the present disclosure. The value of the displacement is positive in the image-side direction and negative in the object-side direction.

[0113] The maximum value of the thickness of each lens of the photographic optical lens group on the optical axis is CTmax, and the minimum value of the thickness of each lens of the photographic optical lens group on the optical axis is CTmin, which can satisfy the following conditions: 1.45 < CTmax / CTmin < 2.20. Thereby, the configuration of the central thickness of each lens can be balanced, and the thinning of the lens can be achieved. Among them, the following conditions can also be satisfied: 1.50 < CTmax / CTmin < 2.00.

[0114] The curvature radius of the object-side surface of the first lens is R1, and the thickness of the first lens on the optical axis is CT1, which can satisfy the following conditions: 1.00 < R1 / CT1 < 1.50. Thereby, it helps to balance the curvature radius of the object-side surface of the first lens and the central thickness, so as to balance the control of the light path direction and the compression of the volume of the photographic optical lens group. Among them, the following conditions can also be satisfied: 1.20 < R1 / CT1 < 1.45.

[0115] 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 photographic optical lens group (which can be half of the total diagonal length of the effective sensing area of the electronic photosensitive element) is ImgH, and it can satisfy the following conditions: 1.40 < TL / ImgH < 2.00. Thereby, it helps to achieve a balance between maintaining the total length of the photographic optical lens group and the imaging surface. Among them, it can also satisfy the following conditions: 1.50 < TL / ImgH < 1.80.

[0116] The entrance pupil diameter of the photographic optical lens group is EPD, and the maximum imaging height of the photographic optical lens group is ImgH, and it can satisfy the following conditions: 0.70 < EPD / ImgH < 0.90. Thereby, the size of the entrance pupil and the imaging height can be balanced, the traveling direction of light can be adjusted, which helps to reduce the incident angle of the imaging surface and increase the illuminance of the peripheral field of view. Among them, it can also satisfy the following conditions: 0.75 < EPD / ImgH < 0.86.

[0117] The focal length of the photographic optical lens group is f, and the radius of curvature of the image side surface of the third lens is R6, and it can satisfy the following conditions: 0.70 < f / R6 < 2.00. Thereby, the radius of curvature of the image side surface of the third lens can be adjusted, which helps to achieve a balance between maintaining the focal length and reducing the back focal length. Among them, it can also satisfy the following conditions: 0.90 < f / R6 < 1.8​​​​​​​​​​​The distance from the object side surface of the first lens to the imaging surface on the optical axis is TL, which can satisfy the following conditions: 0.500 mm < TL < 1.800 mm. Thereby, the purpose of maintaining the overall optical length to achieve the thinning of the lens is achieved. Among them, the following conditions can also be satisfied: 0.800 mm < TL < 1.500 mm.

[0122] The focal length of the photographic optical lens group is f, which can satisfy the following conditions: 0.80 mm < f < 1.50 mm. Thereby, an appropriate distance for light to be focused to the focal point is provided to meet more diverse applications. Among them, the following conditions can also be satisfied: 0.90 mm < f < 1.30 mm.

[0123] Each technical feature in the photographic optical lens group disclosed in the present disclosure can be combined and configured to achieve the corresponding effects.

[0124] In the photographic optical lens group disclosed in the present disclosure, the material of the lens can be glass or plastic. If the material of the lens is glass, the freedom of refractive power configuration of the photographic optical lens group can be increased, and the influence of external environmental temperature changes on imaging can be reduced, and the glass lens can be made by techniques such as grinding or molding. If the lens material is plastic, the production cost can be effectively reduced. In addition, a spherical or aspherical surface (ASP) can be provided on the lens surface. Among them, the spherical lens can reduce the manufacturing difficulty, and if an aspherical surface is provided on the lens surface, more control variables can be obtained thereby to eliminate aberration, reduce the number of lenses, and effectively reduce the overall length of the photographic optical lens group disclosed in the present disclosure. Further, the aspherical surface can be made by methods such as plastic injection molding or molding glass lenses.

[0125] In the photographic optical lens group disclosed in the present disclosure, if the lens surface is aspherical, it means that all or a part of the optically effective area of the lens surface is aspherical.

[0126] In the photographic optical lens group disclosed in the present disclosure, additives can be selectively added to any (or more) lens materials to produce light absorption or light interference effects, so as to change the transmittance of the lens to light of a specific wavelength band, thereby reducing stray light and color deviation. For example: the additive can have the function of filtering light in the wavelength band of 600 nm to 800 nm in the system to help reduce excess red light or infrared light; or it can filter light in the wavelength band of 350 nm to 450 nm to reduce excess blue light or ultraviolet light. Therefore, the additive can avoid the interference of light of a specific wavelength band on imaging. In addition, the additive can be uniformly mixed in the plastic material and made into a lens by injection molding technology. In addition, the additive can also be configured on the coating on the lens surface to provide the above effects.

[0127] In the photographic optical lens assembly disclosed in this disclosure, if the lens surface is convex and the location of the convex surface is not defined, it means that the convex surface can be located near the optical axis of the lens surface; if the lens surface is concave and the location of the concave surface is not defined, it means that the concave surface can be located near the optical axis of the lens surface. If the refractive power, radius of curvature, or focal length of the lens is not defined in its region, it means that the refractive power, radius of curvature, or focal length of the lens can be the refractive power or focal length of the lens near the optical axis.

[0128] In the photographic optical lens assembly disclosed herein, the inflection point of the lens surface refers to the boundary point where the curvature of the lens surface changes from positive to negative. The critical point of the lens surface refers to the point of tangency on the tangent line between a plane perpendicular to the optical axis and the lens surface, and the critical point is not located on the optical axis.

[0129] In the photographic optical lens group disclosed in this disclosure, the imaging surface of the photographic optical lens group can be a plane or a curved surface with any curvature, depending on the corresponding electronic photosensitive element, especially a curved surface with a concave surface facing the object side.

[0130] In the photographic optical lens assembly disclosed herein, one or more imaging correction elements (such as planar elements) can be selectively disposed between the lens closest to the imaging plane and the imaging plane in the imaging optical path to achieve the effect of correcting image curvature (such as image distortion). The optical properties of the imaging correction element, such as curvature, thickness, refractive index, position, and surface shape (convex or concave, spherical or aspherical, diffractive surface, and Fresnel surface, etc.), can be adjusted according to the requirements of the imaging device. Generally, a preferred configuration of the imaging correction element is to place a thin plano-concave element with a concave surface in the object-side direction close to the imaging plane.

[0131] In the photographic optical lens assembly disclosed herein, at least one element with a light-path-deflecting function, such as a prism or a mirror, may be selectively disposed between the subject and the imaging plane in the imaging optical path. The prism surface or mirror surface may be a plane, spherical, aspherical, or freeform surface, etc., to provide a higher degree of spatial flexibility in the spatial configuration of the photographic optical lens assembly, allowing the thinning of electronic devices to be unrestricted by the total optical length of the photographic optical lens assembly. For further explanation, please refer to... Figure 25 and Figure 26 ,in Figure 25 This is a schematic diagram illustrating an arrangement of an optical path reversing element in a photographic optical lens assembly according to the present disclosure, and Figure 26 This is a schematic diagram illustrating another configuration of an optical path reversing element in a photographic optical lens assembly, according to this disclosure. For example... Figure 25 and Figure 26As shown, the photographic optical lens group can travel along the light path from the subject (not shown) to the imaging plane IMG, and sequentially includes a first optical axis OA1, a light path deflection element LF, and a second optical axis OA2, wherein the light path deflection element LF can be as follows: Figure 25 The image shown is positioned between the subject and the lens group LG of the photographic optical lens assembly, or as... Figure 26 The image shows the lens group (LG) positioned between the photographic optical lens assembly and the imaging plane (IMG). Please also refer to... Figure 27 This is a schematic diagram illustrating one configuration of two optical path reversing elements in a photographic optical lens assembly according to the present disclosure, such as... Figure 27 As shown, the photographic optical lens group can also travel along the light path from the subject (not shown) to the imaging plane IMG, and sequentially includes a first optical axis OA1, a first optical path reversing element LF1, a second optical axis OA2, a second optical path reversing element LF2, and a third optical axis OA3. The first optical path reversing element LF1 is positioned between the subject and the lens group LG of the photographic optical lens group, and the second optical path reversing element LF2 is positioned between the lens group LG of the photographic optical lens group and the imaging plane IMG. Furthermore, the direction of light travel along the first optical axis OA1 can be as follows: Figure 27 The direction shown is the same as the direction of light travel along the third optical axis OA3. The photographic optical lens group may also be optionally configured with more than three optical path deflection elements; this disclosure is not limited to the type, number, and position of the optical path deflection elements shown in the accompanying drawings.

[0132] The photographic optical lens group disclosed herein may include at least one aperture stop, which may be located before the first lens, between the lenses, or after the last lens. The aperture stop may be of the type such as a glare stop or a field stop, and may be used to reduce stray light and help improve image quality.

[0133] In the photographic optical lens assembly disclosed in this disclosure, the aperture can be configured as a front aperture or a central aperture. A front aperture means the aperture is positioned between the subject and the first lens, while a central aperture means the aperture is positioned between the first lens and the imaging plane. A front aperture allows for a longer distance between the exit pupil and the imaging plane, resulting in a telecentric effect and increasing the efficiency of image reception by the CCD or CMOS sensor. A central aperture helps to widen the angle of view of the photographic optical lens assembly.

[0134] This disclosure may appropriately incorporate a variable aperture element, which can be a mechanical component or a light-regulating element, capable of electrically or signal-controlled aperture size and shape. The mechanical component may include movable parts such as blade assemblies or shielding plates; the light-regulating element may include masking materials such as filter elements, electrochromic materials, or liquid crystal layers. The variable aperture element can enhance image adjustment capabilities by controlling the amount of light entering the image or the exposure time. Furthermore, the variable aperture element can also be the aperture of this disclosure, allowing adjustment of image quality, such as depth of field or exposure speed, by changing the aperture value.

[0135] This disclosure allows for the appropriate inclusion of one or more optical elements to restrict the form of light passing through a photographic optical lens assembly. These optical elements may be filters, polarizers, etc., but this disclosure is not limited thereto. Furthermore, the optical elements may be monolithic elements, composite components, or thin films, but this disclosure is not limited thereto. The optical elements may be placed between the object end, image end, or lenses of the photographic optical lens assembly to control the passage of specific forms of light, thereby meeting application requirements.

[0136] The photographic optical lens assembly disclosed herein may include at least one optical lens, optical element, or carrier, at least one surface of which has a low-reflection layer. This low-reflection layer effectively reduces stray light generated by reflection at the interface. The low-reflection layer may be disposed in a non-effective area of ​​the object-side surface or image-side surface of the optical lens, or on the connecting surface between the object-side surface and the image-side surface. The optical element may be a light-shielding element, an annular spacer element, a lens barrel element, a cover glass, blue glass, a filter element (color filter), a light path deflection element (reflective element), a prism, or a mirror, etc. The carrier may be a lens mount, a microlens disposed on the photosensitive element, the periphery of the photosensitive element substrate, or a glass sheet used to protect the photosensitive element, etc.

[0137] The photographic optical lens assembly disclosed herein may further include a light-shielding element. The opening of the light-shielding element may be non-circular, and the non-circular opening may have different effective radii in different directions perpendicular to the optical axis. This allows for the use of a non-circular lens or aperture, effectively saving space and maximizing the utilization of light passing through the non-circular lens or aperture, thereby helping to reduce stray light. The periphery of the inner hole of the light-shielding element may contain a wavy or serrated structure.

[0138] In the photographic optical lens assembly disclosed herein, the object side and image side are determined according to the optical axis direction, and the data on the optical axis are calculated along the optical axis. Furthermore, if the optical axis is deflected by an optical path deflection element, the data on the optical axis are also calculated along the optical axis.

[0139] Based on the above implementation methods, specific embodiments are presented below and described in detail with reference to the accompanying drawings.

[0140] <First Embodiment>

[0141] Please refer to Figures 1 to 2 ,in Figure 1 A schematic diagram of an image-capturing device according to a first embodiment of this disclosure is shown. Figure 2 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the first embodiment. Figure 1 It is known that the image capturing device 1 includes a photographic optical lens group (unlabeled) and an electronic image sensor IS. The photographic optical lens group, arranged sequentially from the object side to the image side along the optical path, includes an aperture ST, a first lens E1, an aperture stop S1, a second lens E2, an aperture stop S2, a third lens E3, a filter element E4, and an imaging surface IMG. The electronic image sensor IS is disposed on the imaging surface IMG. The photographic optical lens group comprises three lenses (E1, E2, and E3), and there are no other interposed lenses between the lenses.

[0142] 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, and its image-side surface has a point of inflection.

[0143] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its image-side surface has a point of inflection and a critical point off-axis.

[0144] The third lens E3 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 of its surfaces are aspherical. Its object-side surface has two inflection points, and its image-side surface has one inflection point. Its object-side surface has a critical point off-axis, and its image-side surface has a critical point off-axis.

[0145] The filter element E4 is made of glass and is located between the third lens E3 and the imaging surface IMG. It does not affect the focal length of the photographic optical lens group.

[0146] The equations for the aspherical surfaces of the above lenses are expressed as follows:

[0147]

[0148] X: The displacement parallel to the optical axis from the intersection of the aspherical surface and the optical axis to a point on the aspherical surface at a distance Y from the optical axis;

[0149] Y: The perpendicular distance between a point on the aspherical curve and the optical axis;

[0150] R: Radius of curvature;

[0151] k: cone coefficient; and

[0152] Ai: The i-th order aspherical coefficient.

[0153] In the photographic optical lens group of the first embodiment, the focal length of the photographic optical lens group is f, the aperture value of the photographic optical lens group is FNO, and half of the maximum angle of view in the photographic optical lens group is HFOV, with the following values: f = 1.13 mm, FNO = 2.00, HFOV = 29.9 degrees.

[0154] The distance TL from the object-side surface of the first lens E1 to the imaging plane IMG on the optical axis satisfies the following condition: TL = 1.168 mm.

[0155] The distance on the optical axis from the object-side surface of the first lens E1 to the imaging plane IMG is TL, and the maximum imaging height of the photographic optical lens group is ImgH, which satisfies the following condition: TL / ImgH=1.69.

[0156] The distance on the optical axis from the object-side surface of the first lens E1 to the image-side surface of the third lens E3 is TD, and the entrance pupil diameter of the photographic optical lens group is EPD, which satisfies the following condition: TD / EPD = 1.56.

[0157] The entrance pupil diameter of the photographic optical lens group is EPD, and the maximum imaging height of the photographic optical lens group is ImgH, which satisfies the following condition: EPD / ImgH=0.82.

[0158] The focal length of the second lens E2 is f2, and the focal length of the third lens E3 is f3, which satisfies the following condition: 10×|f3 / f2|=1.47.

[0159] The focal length of the photographic optical lens group is f, and the radius of curvature of the image-side surface of the first lens E1 is R2, which satisfies the following condition: f / R2=1.27.

[0160] The focal length of the photographic optical lens group is f, and the radius of curvature of the image-side surface of the third lens E3 is R6, which satisfies the following condition: f / R6=1.90.

[0161] The focal length of the photographic optical lens group is f, the radius of curvature of the object-side surface of the second lens E2 is R3, and the radius of curvature of the image-side surface of the second lens E2 is R4. They satisfy the following condition: |f / R3|+|f / R4|=0.60.

[0162] The radius of curvature of the image-side surface of the first lens E1 is R2, and the radius of curvature of the image-side surface of the third lens E3 is R6, which satisfies the following condition: R2 / R6 = 1.50.

[0163] The radius of curvature of the image-side surface of the first lens E1 is R2, and the radius of curvature of the object-side surface of the second lens E2 is R3, which satisfies the following condition: (R2-R3) / (R2+R3)=-1.90.

[0164] The radius of curvature of the object-side surface of the third lens E3 is R5, and the radius of curvature of the image-side surface of the third lens E3 is R6, which satisfies the following condition: (R5+R6) / (R5-R6)=1.52.

[0165] The radius of curvature of the object-side surface of the first lens E1 is R1, and the thickness of the first lens E1 on the optical axis is CT1, which satisfies the following condition: R1 / CT1=1.32.

[0166] The thickness of the first lens E1 along the optical axis is CT1, and the thickness of the second lens E2 along the optical axis is CT2, which satisfies the following condition: CT1 / CT2 = 1.74.

[0167] The thickness of the first lens E1 on the optical axis is CT1, and the distance between the second lens E2 and the third lens E3 on the optical axis is T23, which satisfies the following condition: CT1 / T23 = 1.68. In this embodiment, the distance between two adjacent lenses on the optical axis refers to the distance between two adjacent mirror surfaces of the two adjacent lenses on the optical axis.

[0168] The distance between the second lens E2 and the third lens E3 on the optical axis is T23, and the thickness of the third lens E3 on the optical axis is CT3, which satisfies the following condition: T23 / CT3=0.97.

[0169] The thickness of the third lens E3 on the optical axis is CT3, and the distance between the first lens E1 and the second lens E2 on the optical axis is T12, which satisfies the following condition: CT3 / T12=1.06.

[0170] The maximum thickness of each lens in the photographic optical lens group along the optical axis is CTmax, and the minimum thickness of each lens in the photographic optical lens group along the optical axis is CTmin, which satisfies the following condition: CTmax / CTmin = 1.74. In this embodiment, the thickness of the first lens E1 along the optical axis is greater than the thickness of each of the other lenses in the photographic optical lens group along the optical axis, therefore CTmax is equal to the thickness of the first lens E1 along the optical axis. In this embodiment, the thickness of the second lens E2 along the optical axis is less than the thickness of each of the other lenses in the photographic optical lens group along the optical axis, therefore CTmin is equal to the thickness of the second lens E2 along the optical axis.

[0171] The Abbe number of the second lens E2 is V2, which satisfies the following condition: V2 = 18.4.

[0172] The Abbe number of the second lens E2 is V2, and the Abbe number of the third lens E3 is V3, which satisfies the following condition: V2 + V3 = 46.7.

[0173] The Abbe number of the first lens E1 is V1, and the refractive index of the first lens E1 is N1, which satisfies the following condition: V1 / N1 = 36.51.

[0174] The Abbe number of the second lens E2 is V2, and the refractive index of the second lens E2 is N2, which satisfies the following condition: V2 / N2 = 10.91.

[0175] The Abbe number of the third lens E3 is V3, and the refractive index of the third lens E3 is N3, which satisfies the following condition: V3 / N3 = 17.83.

[0176] The maximum effective radius of the image-side surface of the third lens E3 is Y3R2, and the thickness of the third lens E3 on the optical axis is CT3, which satisfies the following condition: Y3R2 / CT3=3.20.

[0177] The displacement parallel to the optical axis from the intersection of the object-side surface of the second lens E2 with the optical axis to the position of the maximum effective radius of the object-side surface of the second lens E2 is Sag2R1. The displacement parallel to the optical axis from the intersection of the image-side surface of the second lens E2 with the optical axis to the position of the maximum effective radius of the image-side surface of the second lens E2 is Sag2R2. The thickness of the second lens E2 on the optical axis is CT2, which satisfies the following condition: (|Sag2R1|+|Sag2R2|) / CT2=0.18. In this embodiment, the direction of Sag2R1 points towards the object side, so its value is negative. In this embodiment, the direction of Sag2R2 points towards the object side, so its value is negative.

[0178] Please refer to Table 1A and Table 1B below.

[0179]

[0180]

[0181] Table 1A is... Figure 1The first embodiment provides detailed structural data, where the units for radius of curvature, thickness, and focal length are millimeters (mm), and surfaces 0 to 12 sequentially represent surfaces from the object side to the image side. Table 1B shows the aspherical data in the first embodiment, where k is the conic coefficient in the aspherical curve equation, and A4 to A24 represent the 4th to 24th order aspherical coefficients of each surface. Furthermore, the tables for the following embodiments are corresponding schematic diagrams and aberration curves for each embodiment. The definitions of the data in the tables are the same as those in Tables 1A and 1B of the first embodiment, and will not be repeated here.

[0182] <Second Embodiment>

[0183] Please refer to Figures 3 to 4 ,in Figure 3 A schematic diagram of an image-capturing device according to a second embodiment of this disclosure is shown. Figure 4 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the second embodiment. Figure 3 It is known that the image capturing device 2 includes a photographic optical lens group (unlabeled) and an electronic image sensor IS. The photographic optical lens group, arranged sequentially from the object side to the image side along the optical path, includes an aperture ST, a first lens E1, an aperture stop S1, a second lens E2, an aperture stop S2, a third lens E3, a filter element E4, and an imaging surface IMG. The electronic image sensor IS is disposed on the imaging surface IMG. The photographic optical lens group comprises three lenses (E1, E2, and E3), and there are no other interposed lenses between the lenses.

[0184] 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, and its image-side surface has a point of inflection.

[0185] The second lens E2 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 of its surfaces are aspherical. Its object-side surface has a point of inflection and a critical point off-axis.

[0186] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both of its 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 critical point off-axis.

[0187] The filter element E4 is made of glass and is located between the third lens E3 and the imaging surface IMG. It does not affect the focal length of the photographic optical lens group.

[0188] Please refer to Table 2A and Table 2B below.

[0189]

[0190]

[0191] In the second embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in Table 2C are the same as in the first embodiment and will not be repeated here.

[0192]

[0193] <Third Embodiment>

[0194] Please refer to Figures 5 to 6 ,in Figure 5 A schematic diagram of an image-capturing device according to a third embodiment of this disclosure is shown. Figure 6 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the third embodiment. Figure 5 It is known that the image capturing device 3 includes a photographic optical lens group (unlabeled) and an electronic image sensor IS. The photographic optical lens group, arranged sequentially from the object side to the image side along the optical path, includes an aperture ST, a first lens E1, an aperture stop S1, a second lens E2, an aperture stop S2, a third lens E3, a filter element E4, and an imaging surface IMG. The electronic image sensor IS is disposed on the imaging surface IMG. The photographic optical lens group comprises three lenses (E1, E2, and E3), and there are no other interposed lenses between the lenses.

[0195] 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, and its image-side surface has a point of inflection.

[0196] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its image-side surface has two inflection points, and its image-side surface has a critical point off-axis.

[0197] The third lens E3 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 of its surfaces are aspherical. Its object-side surface has two inflection points, its image-side surface has two inflection points, its object-side surface has two critical points off-axis, and its image-side surface has one critical point off-axis.

[0198] The filter element E4 is made of glass and is located between the third lens E3 and the imaging surface IMG. It does not affect the focal length of the photographic optical lens group.

[0199] Please refer to Table 3A and Table 3B below.

[0200]

[0201]

[0202] In the third embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in Table 3C are the same as in the first embodiment and will not be repeated here.

[0203]

[0204] <Fourth Embodiment>

[0205] Please refer to Figures 7 to 8 ,in Figure 7 A schematic diagram of an image-capturing device according to the fourth embodiment of this disclosure is shown. Figure 8 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the fourth embodiment. Figure 7 It is known that the image capturing device 4 includes a photographic optical lens group (unlabeled) and an electronic image sensor IS. The photographic optical lens group, arranged sequentially from the object side to the image side along the optical path, includes an aperture ST, a first lens E1, an aperture stop S1, a second lens E2, an aperture stop S2, a third lens E3, a filter element E4, and an imaging surface IMG. The electronic image sensor IS is disposed on the imaging surface IMG. The photographic optical lens group contains three lenses (E1, E2, and E3), and there are no other interposed lenses between the lenses.

[0206] 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, and its image-side surface has a point of inflection.

[0207] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both surfaces are aspherical. Its image-side surface has a point of inflection and a critical point off-axis.

[0208] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical. Its object-side surface has one inflection point, and its image-side surface has two inflection points. Its object-side surface has a critical point off-axis, and its image-side surface has a critical point off-axis.

[0209] The filter element E4 is made of glass and is located between the third lens E3 and the imaging surface IMG. It does not affect the focal length of the photographic optical lens group.

[0210] Please refer to Table 4A and Table 4B below.

[0211]

[0212]

[0213] In the fourth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in Table 4C are the same as in the first embodiment and will not be repeated here.

[0214]

[0215]

[0216] <Fifth Embodiment>

[0217] Please refer to Figures 9 to 10 ,in Figure 9 A schematic diagram of an image-capturing device according to the fifth embodiment of this disclosure is shown. Figure 10 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the fifth embodiment. Figure 9 It is known that the image capturing device 5 includes a photographic optical lens group (unlabeled) and an electronic image sensor IS. The photographic optical lens group, arranged sequentially from the object side to the image side along the optical path, includes an aperture ST, a first lens E1, an aperture stop S1, a second lens E2, an aperture stop S2, a third lens E3, a filter element E4, and an imaging surface IMG. The electronic image sensor IS is disposed on the imaging surface IMG. The photographic optical lens group contains three lenses (E1, E2, and E3), and there are no other interposed lenses between the lenses.

[0218] 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, and its image-side surface has a point of inflection.

[0219] The second lens E2 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 image-side surface has a point of inflection and a critical point off-axis.

[0220] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical. Its object-side surface has one inflection point, and its image-side surface has two inflection points. Its object-side surface has a critical point off-axis, and its image-side surface has a critical point off-axis.

[0221] The filter element E4 is made of glass and is located between the third lens E3 and the imaging surface IMG. It does not affect the focal length of the photographic optical lens group.

[0222] Please refer to Table 5A and Table 5B below.

[0223]

[0224]

[0225] In the fifth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions described in Table 5C are the same as in the first embodiment and will not be repeated here.

[0226]

[0227] <Sixth Embodiment>

[0228] Please refer to Figures 11 to 12 ,in Figure 11 A schematic diagram of an image-capturing device according to the sixth embodiment of this disclosure is shown. Figure 12 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the sixth embodiment. Figure 11 It is known that the image capturing device 6 includes a photographic optical lens group (unlabeled) and an electronic image sensor IS. The photographic optical lens group, arranged sequentially from the object side to the image side along the optical path, includes an aperture ST, a first lens E1, an aperture stop S1, a second lens E2, an aperture stop S2, a third lens E3, a filter element E4, and an imaging surface IMG. The electronic image sensor IS is disposed on the imaging surface IMG. The photographic optical lens group contains three lenses (E1, E2, and E3), and there are no other interposed lenses between the lenses.

[0229] 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, and its image-side surface has a point of inflection.

[0230] The second lens E2 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 of its surfaces are aspherical. Its object-side surface has a point of inflection, its image-side surface has a point of inflection, and its object-side surface has a critical point off-axis.

[0231] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical. Its object-side surface has one inflection point, and its image-side surface has two inflection points. Its object-side surface has a critical point off-axis, and its image-side surface has a critical point off-axis.

[0232] The filter element E4 is made of glass and is located between the third lens E3 and the imaging surface IMG. It does not affect the focal length of the photographic optical lens group.

[0233] Please refer to Table 6A and Table 6B below.

[0234]

[0235]

[0236] In the sixth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in Table 6C are the same as in the first embodiment and will not be repeated here.

[0237]

[0238] <Seventh Embodiment>

[0239] Please refer to Figures 13 to 14 ,in Figure 13 A schematic diagram of an image-capturing device according to the seventh embodiment of this disclosure is shown. Figure 14 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the seventh embodiment. Figure 13 It is known that the image capturing device 7 includes a photographic optical lens group (unlabeled) and an electronic image sensor IS. The photographic optical lens group, arranged sequentially from the object side to the image side along the optical path, includes an aperture ST, a first lens E1, an aperture stop S1, a second lens E2, an aperture stop S2, a third lens E3, a filter element E4, and an imaging surface IMG. The electronic image sensor IS is disposed on the imaging surface IMG. The photographic optical lens group contains three lenses (E1, E2, and E3), and there are no other interposed lenses between the lenses.

[0240] 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, and its image-side surface has a point of inflection.

[0241] The second lens E2 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 image-side surface has a point of inflection and a critical point off-axis.

[0242] The third lens E3 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical. Its object-side surface has a point of inflection, its image-side surface has a point of inflection, and its image-side surface has a critical point off-axis.

[0243] The filter element E4 is made of glass and is located between the third lens E3 and the imaging surface IMG. It does not affect the focal length of the photographic optical lens group.

[0244] Please refer to Table 7A and Table 7B below.

[0245]

[0246]

[0247] In the seventh embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in Table 7C are the same as in the first embodiment and will not be repeated here.

[0248]

[0249]

[0250] <Eighth Embodiment>

[0251] Please refer to Figure 15 This is a perspective view illustrating an image-capturing device according to an eighth embodiment of the present disclosure. In this embodiment, the image-capturing device 100 is a camera module. The image-capturing 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 photographic optical lens group of the first embodiment described above, a lens barrel (not otherwise labeled) for supporting the photographic optical lens group, and a support device (Holder Member, not otherwise labeled). The imaging lens 101 can also be configured with photographic optical lens groups of other embodiments described above, and the present disclosure is not limited thereto. The image-capturing 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, finally imaging it on the electronic photosensitive element 103 and outputting it as image data.

[0252] The driving device 102 may have an auto-focus function, and its driving method can use a driving system such as a voice coil motor (VCM), micro-electro-mechanical systems (MEMS), piezoelectric systems, and shape memory alloys. The driving device 102 enables the imaging lens 101 to achieve a better imaging position, allowing clear images to be captured of the subject at different object distances. In addition, the image capturing device 100 is equipped with a high-sensitivity and low-noise electronic image sensor 103 (such as CMOS or CCD) located on the imaging surface of the photographic optical lens group, which can truly present the good image quality of the photographic optical lens group.

[0253] The image stabilization module 104 may be, for example, an accelerometer, a gyroscope, or a Hall effect sensor. The drive unit 102 may work in conjunction with the image stabilization module 104 to form an optical image stabilization (OIS) device. By adjusting the changes in different axes of the imaging lens 101, it can compensate for the blurry image caused by shaking during shooting, or use image compensation technology in the imaging software to provide electronic image stabilization (EIS), further improving the image quality of shooting in dynamic and low-light scenes.

[0254] <Ninth Embodiment>

[0255] Please refer to Figures 16 to 17 ,in Figure 16 A perspective view of one side of an electronic device according to the ninth embodiment of this disclosure is shown, and Figure 17 Draw Figure 16 A three-dimensional diagram of the other side of the electronic device.

[0256] In this embodiment, the electronic device 200 is a smartphone. The electronic device 200 includes image-capturing devices 100, 100a, 100b, and 100c, as well as a display module 201, according to the eighth embodiment. Figure 16 As shown, image capturing devices 100, 100a, and 100b are all located on the same side of the electronic device 200 and are all single-focus. Figure 17 As shown, the image capturing device 100c and the display module 201 are both located on the other side of the electronic device 200. The image capturing device 100c can serve as a front-facing lens to provide a selfie function, but this disclosure is not limited thereto. Furthermore, the image capturing devices 100a, 100b, and 100c can all include the photographic optical lens group disclosed herein and can all have a structural configuration similar to that of the image capturing device 100. In detail, each of the image capturing devices 100a, 100b, and 100c can include an imaging lens, a driving device, an electronic photosensitive element, and an image stabilization module. The imaging lens of each of the image capturing devices 100a, 100b, and 100c can include, for example, an optical lens group (such as the photographic optical lens group disclosed herein), a lens barrel for supporting the optical lens group, and a support device.

[0257] Image capturing device 100 is a wide-angle image capturing device, image capturing device 100a is a telephoto image capturing device, image capturing device 100b is an ultra-wide-angle image capturing device, and image capturing device 100c is a wide-angle image capturing device. In this embodiment, image capturing devices 100, 100a, and 100b have different viewing angles, allowing the electronic device 200 to provide different magnifications to achieve an optical zoom shooting effect. Furthermore, as... Figure 17 As shown, the opening of the image capturing device 100c can be non-circular, and the lens barrel or lens inside the image capturing device 100c can be cut at the outer diameter to have a chamfered edge to fit the non-circular opening. This allows for a further reduction in the single-axis length of the image capturing device 100c, which helps to reduce the lens volume, 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 aforementioned electronic device 200 is exemplified by including multiple image capturing devices 100, 100a, 100b, and 100c, but the number and configuration of the image capturing devices are not intended to limit this disclosure.

[0258] <Tenth Embodiment>

[0259] Please refer to Figures 18 to 20 ,in Figure 18 A perspective view of one side of an electronic device according to the tenth embodiment of this disclosure is shown. Figure 19 Draw Figure 18 A three-dimensional diagram of the other side of the electronic device, and Figure 20 Draw Figure 18 System block diagram of an electronic device.

[0260] In this embodiment, the electronic device 300 is a smartphone. The electronic device 300 includes, according to the eighth embodiment, image capturing devices 100, 100d, 100e, 100f, and 100g, a flash module 301, a focus assist module 302, an image signal processor 303, a display module 304, and an image software processor 305. Image capturing devices 100 and 100d are both located on the same side of the electronic device 300. The focus assist module 302 may employ a laser rangefinder or a Time-of-Flight (ToF) module, but this disclosure is not limited thereto. Image capturing devices 100e, 100f, and 100g, along with display module 304, are all located on the other side of electronic device 300. Display module 304 can serve as a user interface, allowing image capturing devices 100e, 100f, and 100g to function as front-facing cameras for selfies; however, this disclosure is not limited to this. Furthermore, image capturing devices 100d, 100e, 100f, and 100g can all include the photographic optical lens group disclosed herein and can all have a structural configuration similar to that of image capturing device 100. Specifically, each of image capturing devices 100d, 100e, 100f, and 100g can include an imaging lens, a driving device, an electronic photosensitive element, and an image stabilization module. The imaging lenses of imaging devices 100d, 100e, 100f and 100g may each include, for example, an optical lens group of photographic optical lens group as disclosed herein, a lens barrel for carrying the optical lens group and a support device.

[0261] Image capturing device 100 is a wide-angle image capturing device, image capturing device 100d is an ultra-wide-angle image capturing device, image capturing device 100e is a wide-angle image capturing device, image capturing device 100f is an ultra-wide-angle image capturing device, and image capturing device 100g is a time-of-flight ranging image capturing device. In this embodiment, image capturing devices 100 and 100d have different viewing angles, allowing the electronic device 300 to provide different magnifications to achieve optical zoom shooting effects. Additionally, image capturing device 100g can acquire depth information of the image. The above-described electronic device 300 is exemplified by including multiple image capturing devices 100, 100d, 100e, 100f, and 100g, but the number and configuration of the image capturing devices are not intended to limit this disclosure.

[0262] When the user photographs the subject 306, the electronic device 300 uses the image capturing device 100 or image capturing device 100d to capture the image, activates the flash module 301 for supplemental lighting, and uses the subject distance information of the subject 306 provided by the focus assist module 302 for fast focusing. Furthermore, the image signal processor 303 performs image optimization processing to further improve the image quality produced by the photographic optical lens group. The focus assist module 302 can use an infrared or laser focus assist system to achieve fast focusing. In addition, the electronic device 300 can also use the image capturing devices 100e, 100f, or 100g for shooting. The display module 304 can use a touch screen, combined with the diverse functions of the image software processor 305 for image capturing and image processing (or can use a physical shooting button). The image processed by the image software processor 305 can be displayed on the display module 304.

[0263] <Eleventh Embodiment>

[0264] Please refer to Figure 21 This is a perspective view illustrating one side of an electronic device according to the eleventh embodiment of the present disclosure.

[0265] In this embodiment, the electronic device 400 is a smartphone. The electronic device 400 includes an image capturing device 100, an image capturing device 100h, an image capturing device 100i, a flash module 401, a focus assist module, an image signal processor, a display module, and an image software processor (not shown) according to the eighth embodiment. The image capturing devices 100, 100h, and 100i are all disposed on the same side of the electronic device 400, while the display module is disposed on the other side. Furthermore, both the image capturing devices 100h and 100i may include the photographic optical lens group disclosed herein and may have a structural configuration similar to that of the image capturing device 100, which will not be described in detail here.

[0266] Image capturing device 100 is a wide-angle image capturing device, image capturing device 100h is a telephoto image capturing device, and image capturing device 100i is an ultra-wide-angle image capturing device. In this embodiment, image capturing devices 100, 100h, and 100i have different viewing angles, allowing the electronic device 400 to provide different magnifications to achieve optical zoom shooting effects. Furthermore, image capturing device 100h is a telephoto image capturing device with an optical path deflection element configuration, so that the total length of image capturing device 100h is not limited by the thickness of the electronic device 400. The optical path deflection element configuration of image capturing device 100h can, for example, have a similar... Figures 25 to 27 The structure can be referred to the aforementioned corresponding structure. Figures 25 to 27The description of the above-described electronic device 400 is given as an example, which includes multiple image capturing devices 100, 100h, and 100i, but the number and configuration of the image capturing devices are not intended to limit this disclosure. When a user photographs a subject, the electronic device 400 uses the image capturing device 100, image capturing device 100h, or image capturing device 100i to focus the light and capture the image, activates the flash module 401 to provide supplementary lighting, and performs subsequent processing in a manner similar to the aforementioned embodiments, which will not be described in detail here.

[0267] <Twelfth Embodiment>

[0268] Please refer to Figure 22 This is a perspective view illustrating one side of an electronic device according to the twelfth embodiment of this disclosure.

[0269] In this embodiment, the electronic device 500 is a smartphone. The electronic device 500 includes, according to the eighth embodiment, image capturing devices 100, 100j, 100k, 100m, 100n, 100p, 100q, 100r, and 100s, a flash module 501, a focus assist module, an image signal processor, a display module, and an image software processor (not shown). Image capturing devices 100, 100j, 100k, 100m, 100n, 100p, 100q, 100r, and 100s are all located on the same side of the electronic device 500, while the display module is located on the other side of the electronic device 500. Furthermore, the image capturing devices 100j, 100k, 100m, 100n, 100p, 100q, 100r, and 100s can all include the photographic optical lens group disclosed herein and can all have a structural configuration similar to that of the image capturing device 100, which will not be described in detail here.

[0270] Image capturing device 100 is a wide-angle image capturing device, image capturing device 100j is a telephoto image capturing device, image capturing device 100k is a telephoto image capturing device, image capturing device 100m is a wide-angle image capturing device, image capturing device 100n is an ultra-wide-angle image capturing device, image capturing device 100p is an ultra-wide-angle image capturing device, image capturing device 100q is a telephoto image capturing device, image capturing device 100r is a telephoto image capturing device, and image capturing device 100s is a time-of-flight ranging image capturing device. In this embodiment, image capturing devices 100, 100j, 100k, 100m, 100n, 100p, 100q, and 100r have different viewing angles, allowing the electronic device 500 to provide different magnifications to achieve an optical zoom shooting effect. Furthermore, the image capturing devices 100j and 100k can be telescopic image capturing devices configured with optical path deflection elements. The optical path deflection element configuration of the image capturing devices 100j and 100k can, for example, have similar... Figures 25 to 27 The structure can be referred to the aforementioned corresponding structure. Figures 25 to 27 The description of the image acquisition device 100s will not be repeated here. Additionally, the image acquisition device 100s can acquire depth information of the image. The electronic device 500 described above is exemplified by including multiple image acquisition devices 100, 100j, 100k, 100m, 100n, 100p, 100q, 100r, and 100s, but the number and configuration of the image acquisition devices are not intended to limit this disclosure. When a user photographs a subject, the electronic device 500 uses image acquisition devices 100, 100j, 100k, 100m, 100n, 100p, 100q, 100r, or 100s to focus light and acquire an image, activates the flash module 501 for supplemental lighting, and performs subsequent processing in a manner similar to the aforementioned embodiments, which will not be repeated here.

[0271] The image capturing device disclosed herein is not limited to smartphones. It can also be applied to mobile focusing systems as needed, offering excellent aberration correction and good image quality. For example, the image capturing device can be used in a wide range of electronic devices, including 3D image capture, digital cameras, mobile devices, tablets, smart TVs, network monitoring equipment, dashcams, reversing cameras, multi-lens systems, recognition systems, motion-sensing game consoles, and wearable devices. The aforementioned electronic devices are merely illustrative examples of practical applications of this disclosure and do not limit the scope of application of the image capturing device disclosed herein.

[0272] Although this disclosure is presented above with reference to the preferred embodiments described above, it is not intended to limit this disclosure. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of this disclosure. Therefore, the scope of patent protection of this disclosure shall be determined by the claims appended to this specification.

Claims

1. A photographic optical lens assembly, characterized in that, It includes three lenses. Along the optical path from the object side to the image side, the three lenses are the first lens, the second lens, and the third lens in sequence. And the three lenses respectively have an object-side surface facing the object side direction and an image-side surface facing the image side direction; Among them, the first lens has a positive refractive power. The object-side surface of the first lens is convex near the optical axis, and the image-side surface of the first lens is concave near the optical axis. The third lens has a negative refractive power. The image-side surface of the third lens is concave near the optical axis, and the image-side surface of the third lens has at least one inflection point; Among them, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the focal length of the second lens is f2, the focal length of the third lens is f3, the thickness of the third lens on the optical axis is CT3, the interval distance between the first lens and the second lens on the optical axis is T12, the radius of curvature of the object-side surface of the third lens is R5, and the radius of curvature of the image-side surface of the third lens is R6, which satisfy the following conditions: 10.0 < V2 + V3 < 70.0; 0 < 10×|f3 / f2| < 4.50; 0.40 < CT3 / T12 < 2.50; and 0 < (R5 + R6) / (R5 - R6) < 2.

00.

2. The photographic optical lens group according to claim 1, characterized in that, The Abbe number of the second lens is V2, and the Abbe number of the third lens is V3, which satisfy the following conditions: 20.0 < V2 + V3 < 65.

0.

3. The photographic optical lens group according to claim 1, characterized in that, The image-side surface of the second lens is convex near the optical axis; Among them, the focal length of the second lens is f2, and the focal length of the third lens is f3, which satisfy the following conditions: 0.01 < 10×|f3 / f2| < 3.

00.

4. The photographic optical lens group according to claim 1, characterized in that, The object-side surface of the third lens is concave near the optical axis; Among them, the thickness of the third lens on the optical axis is CT3, and the interval distance between the first lens and the second lens on the optical axis is T12, which satisfy the following conditions: 0.60 < CT3 / T12 < 1.

75.

5. The photographic optical lens group according to claim 1, characterized in that, The focal length of the photographic optical lens group is f, the radius of curvature of the object-side surface of the second lens is R3, and the radius of curvature of the image-side surface of the second lens is R4, which satisfy the following conditions: 0.30 < |f / R3| + |f / R4| < 1.

00.

6. The photographic optical lens group according to claim 1, characterized in that, The radius of curvature of the image-side surface of the first lens is R2, and the radius of curvature of the object-side surface of the second lens is R3, which satisfy the following conditions: -3.00 < (R2 - R3) / (R2 + R3) < 0.

7. The photographic optical lens group according to claim 1, characterized in that, The thickness of the first lens on the optical axis is CT1, and the thickness of the second lens on the optical axis is CT2, which satisfy the following conditions: 1.30 < CT1 / CT2 < 2.

30.

8. The photographic optical lens group according to claim 1, characterized in that, The interval distance between the second lens and the third lens on the optical axis is T23, and the thickness of the third lens on the optical axis is CT3, which satisfy the following conditions: 0.50 < T23 / CT3 < 1.

30.

9. The photographic optical lens group according to claim 1, characterized in that, The Abbe number of the second lens is V2, which satisfy the following conditions: 10.0<V2<25.0。 10. The photographic optical lens group according to claim 1, characterized in that, The maximum effective radius of the image-side surface of the third lens is Y3R2, and the thickness of the third lens on the optical axis is CT3, which satisfy the following conditions: 1.50 < Y3R2 / CT3 < 4.00。 11. The photographic optical lens group according to claim 1, characterized in that, The displacement parallel to the optical axis from the intersection of the object-side surface of the second lens on the optical axis to the position of the maximum effective radius of the object-side surface of the second lens is Sag2R1, and the displacement parallel to the optical axis from the intersection of the image-side surface of the second lens on the optical axis to the position of the maximum effective radius of the image-side surface of the second lens is Sag2R2. The thickness of the second lens on the optical axis is CT2, and it satisfies the following conditions: 0.03 < (|Sag2R1| + |Sag2R2|) / CT2 < 0.25。 12. An image capturing device, characterized in that, Comprising: The photographic optical lens group according to claim 1; and An electronic photosensitive element disposed on an imaging surface of the photographic optical lens group.

13. An electronic device, characterized in that, Comprising: The imaging device according to claim 12.

14. A photographic optical lens assembly, characterized in that, Comprising three lenses, which are, in order from the object side to the image side along the optical path, a first lens, a second lens, and a third lens, and the three 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 object-side surface of the first lens is convex near the optical axis, and the image-side surface of the first lens is concave near the optical axis. The third lens has a negative refractive power. The image-side surface of the third lens is concave near the optical axis, and the image-side surface of the third lens has at least one critical point off the axis; Among them, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the focal length of the photographic optical lens group is f, the focal length of the second lens is f2, the focal length of the third lens is f3, and the radius of curvature of the image-side surface of the first lens is R2, and it satisfies the following conditions: 10.0 < V2 + V3 < 70.0; 0 < 10×|f3 / f2| < 4.50; and 0.80 < f / R2 < 2.50; Among them, the Abbe number of the first lens is V1, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the Abbe number of the i-th lens is Vi, the refractive index of the first lens is N1, the refractive index of the second lens is N2, the refractive index of the third lens is N3, the refractive index of the i-th lens is Ni, and at least one lens in the photographic optical lens group satisfies the following conditions: 5.00 < Vi / Ni < 14.50, where i = 1, 2, or 3.

15. The photographic optical lens group according to claim 14, characterized in that, The Abbe number of the second lens is V2, the Abbe number of the third lens is V3, and it satisfies the following conditions: 20.0 < V2 + V3 < 65.0。 16. The photographic optical lens group according to claim 14, characterized in that, The focal length of the photographic optical lens group is f, and the radius of curvature of the image-side surface of the first lens is R2, and it satisfies the following conditions: 0.90 < f / R2 < 2.30。 17. The photographic optical lens group according to claim 14, characterized in that, The Abbe number of the first lens is V1, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the Abbe number of the i-th lens is Vi, the refractive index of the first lens is N1, the refractive index of the second lens is N2, the refractive index of the third lens is N3, the refractive index of the i-th lens is Ni, and at least one lens in the photographic optical lens group satisfies the following conditions: 8.00 < Vi / Ni < 12.50, where i = 1, 2 or 3.

18. The photographic optical lens group according to claim 14, characterized in that, The maximum value of the thickness of each lens on the optical axis in the photographic optical lens group is CTmax, and the minimum value of the thickness of each lens on the optical axis in the photographic optical lens group is CTmin, which satisfy the following conditions: 1.45 < CTmax / CTmin < 2.

20.

19. The photographic optical lens group according to claim 14, characterized in that, The radius of curvature of the object-side surface of the first lens is R1, and the thickness of the first lens on the optical axis is CT1, which satisfy the following conditions: 1.00 < R1 / CT1 < 1.

50.

20. The photographic optical lens group according to claim 14, characterized in that, The object-side surface of the second lens is concave near the optical axis; Among them, the distance from the object-side surface of the first lens to an imaging surface on the optical axis is TL, and the maximum imaging height of the photographic optical lens group is ImgH, which satisfy the following conditions: 1.40 < TL / ImgH < 2.

00.

21. The photographic optical lens group according to claim 14, characterized in that, The entrance pupil diameter of the photographic optical lens group is EPD, and the maximum imaging height of the photographic optical lens group is ImgH, which satisfy the following conditions: 0.70 < EPD / ImgH < 0.

90.

22. A photographic optical lens assembly, characterized in that, It includes three lenses. The three lenses are, in order from the object side to the image side along the optical path, the first lens, the second lens, and the third lens, and the three 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 object-side surface of the first lens is convex near the optical axis, the image-side surface of the first lens is concave near the optical axis, the third lens has a negative refractive power, the image-side surface of the third lens is concave near the optical axis, and the image-side surface of the third lens has at least one critical point off the axis; Among them, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the focal length of the second lens is f2, the focal length of the third lens is f3, the radius of curvature of the image-side surface of the first lens is R2, the radius of curvature of the image-side surface of the third lens is R6, the distance from the object-side surface of the first lens to the image-side surface of the third lens on the optical axis is TD, and the entrance pupil diameter of the photographic optical lens group is EPD, which satisfy the following conditions: 10.0 < V2 + V3 < 70.0; 0 < 10 × |f3 / f2| < 7.00; 0 < R2 / R6 < 2.00; and 1.00 < TD / EPD < 1.

80.

23. The photographic optical lens group according to claim 22, characterized in that, The Abbe number of the second lens is V2, and the Abbe number of the third lens is V3, which satisfy the following conditions: 3 24. The photographic optical lens group according to claim 22, characterized in that, ​ ​ 25. The photographic optical lens group according to claim 22, characterized in that, ​ ​ 26. The photographic optical lens group according to claim 22, characterized in that, ​ ​ 27. The photographic optical lens group according to claim 22, characterized in that, The aperture value of the photographic optical lens group is FNO, and half of the maximum viewing angle in the photographic optical lens group is HFOV, which satisfies the following conditions: 1.80 < FNO < 2.20; and 26.0 degrees < HFOV < 35.0 degrees.

28. The photographic optical lens group according to claim 22, characterized in that, The distance from the object side surface of the first lens to an imaging surface on the optical axis is TL, and the focal length of the photographic optical lens group is f, which satisfies the following conditions: 0.500 mm < TL < 1.800 mm; and 0.80 mm < f < 1.50 mm.

29. The photographic optical lens group according to claim 22, characterized in that, The Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the focal length of the photographic optical lens group is f, the focal length of the second lens is f2, the focal length of the third lens is f3, the thickness of the third lens on the optical axis is CT3, the distance between the first lens and the second lens on the optical axis is T12, the radius of curvature of the image side surface of the first lens is R2, the radius of curvature of the object side surface of the third lens is R5, the radius of curvature of the image side surface of the third lens is R6, the distance from the object side surface of the first lens to the image side surface of the third lens on the optical axis is TD, and the entrance pupil diameter of the photographic optical lens group is EPD, which satisfies the following conditions: 36.7 ≤ V2 + V3 ≤ 60.9; 0.11 ≤ 10 × |f3 / f2| ≤ 3.99; 0.81 ≤ CT3 / T12 ≤ 2.10; 0.37 ≤ (R5 + R6) / (R5 - R6) ≤ 1.52; 1.07 ≤ f / R2 ≤ 2.06; 0.69 ≤ R2 / R6 ≤ 1.50; and 1.56 ≤ TD / EPD ≤ 1.68; Where, the Abbe number of the first lens is V1, the Abbe number of the second lens is V2, the Abbe number of the third lens is V3, the Abbe number of the i-th lens is Vi, the refractive index of the first lens is N1, the refractive index of the second lens is N2, the refractive index of the third lens is N3, the refractive index of the i-th lens is Ni, and at least one lens in the photographic optical lens group satisfies the following conditions: 9.61 ≤ Vi / Ni ≤ 14.34, where i = 1, 2 or 3.

Images