Image capturing lens system, image capturing device and electronic device

Abstract

An image capturing lens system is disclosed. The image capturing lens system includes five lenses. The five lenses are sequentially arranged along an optical path from an object side to an image side as a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The five 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 second lens has a negative refractive power, and the second lens image side surface is concave at a vicinity of an optical axis. When certain conditions are met, the image capturing lens system can simultaneously meet the requirements of miniaturization, telephoto function and high imaging quality. An image capturing device having the image capturing lens system and an electronic device having the image capturing device are also disclosed.

Description

Technical Field

[0001] This disclosure relates to an image-capturing lens system, an image-capturing device, and an electronic device, particularly an image-capturing lens system and an image-capturing 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 an image-capturing lens system, an image-capturing device, and an electronic device. The image-capturing lens system comprises five lenses arranged sequentially from the object side to the image side along the optical path. Under certain conditions, the image-capturing lens system provided by this disclosure can simultaneously meet the requirements of miniaturization, telescopic function, and high image quality.

[0005] This disclosure provides an image-capturing lens system comprising five lenses. The five lenses, arranged sequentially from the object side to the image side along the optical path, are a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. Each of the five 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 second lens has negative refractive power. Preferably, the image-side surface of the second lens is concave near the optical axis. Wherein, 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 Dr1r6, the distance on the optical axis from the object-side surface of the fourth lens to the image-side surface of the fifth lens is Dr7r10, the distance on the optical axis from the object-side surface of the first lens to the image-side surface of the fifth lens is TD, the distance on the optical axis from the image-side surface of the fifth lens to the imaging plane is BL, the optical axis spacing between the first and second lenses is T12, the optical axis spacing between the second and third lenses is T23, the optical axis spacing between the third and fourth lenses is T34, the optical axis spacing between the fourth and fifth lenses is T45, the Abbe number of the fourth lens is V4, the radius of curvature of the image-side surface of the second lens is R4, and the radius of curvature of the image-side surface of the fifth lens is R10, preferably satisfying the following conditions:

[0006] 1.60 <Dr1r6 / Dr7r10<5.00;

[0007] 0.50 < TD / BL < 1.50;

[0008] 0.00 < (T12 + T23 + T45) / T34 < 0.50;

[0009] 0.00 < T23 / T45 < 0.50;

[0010] 5.0 < V4 < 35.0; and

[0011] 0.00 < |R4 / R10| < 1.00.

[0012] The present disclosure further provides an imaging lens system including five lenses. The five lenses are, in order from the object side to the image side along the optical path, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The five lenses respectively have an object-side surface facing the object side and an image-side surface facing the image side. Preferably, the first lens has a positive refractive power. Preferably, the second lens has a negative refractive power. Preferably, the object-side surface of the second lens is convex near the optical axis. Preferably, the object-side surface of the fifth lens is concave near the optical axis. Among them, 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 Dr1r6, the distance on the optical axis from the object-side surface of the fourth lens to the image-side surface of the fifth lens is Dr7r10, the distance on the optical axis from the object-side surface of the first lens to the image-side surface of the fifth lens is TD, the distance on the optical axis from the image-side surface of the fifth lens to the imaging surface is BL, the distance on the optical axis between the first lens and the second lens is T12, the distance on the optical axis between the second lens and the third lens is T23, the distance on the optical axis between the third lens and the fourth lens is T34, and the distance on the optical axis between the fourth lens and the fifth lens is T45, which preferably satisfy the following conditions:

[0013] 1.60 < Dr1r6 / Dr7r10 < 5.00;

[0014] 0.50 < TD / BL < 1.50;

[0015] 0.00 < (T12 + T23 + T45) / T34 < 0.50; and

[0016] 0.00 < T23 / T45 < 0.50.

[0017] The present disclosure provides an imaging device, which includes the aforementioned imaging lens system and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on the imaging surface of the imaging lens system.

[0018] The present disclosure provides an electronic device, which includes the aforementioned imaging device.

[0019] When Dr1r6 / Dr7r10 meets the above conditions, it helps to reduce the volume of the image-side end of the imaging lens system and improve the image quality.

[0020] When TD / BL meets the above conditions, it helps the imaging lens system to present better telephoto performance.

[0021] When (T12+T23+T45) / T34 meets the above conditions, the ratio of the distance between the third and fourth lenses to the sum of the distances between all other lenses can be adjusted, which helps to reduce manufacturing tolerances.

[0022] When T23 / T45 meets the above conditions, the ratio of the distance between the second and third lenses and the distance between the fourth and fifth lenses can be controlled, which helps to reduce manufacturing sensitivity and correct aberrations.

[0023] When V4 meets the above conditions, the Abbe number of the fourth lens can be adjusted, which helps to correct chromatic aberration in the imaging lens system.

[0024] When |R4 / R10| meets the above conditions, it helps to correct coma and improve the focusing quality at both the paraxial and off-axis.

[0025] 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

[0026] Figure 1 A schematic diagram of an image-capturing device according to a first embodiment of this disclosure is shown.

[0027] Figure 2 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the first embodiment.

[0028] Figure 3 A schematic diagram of an image-capturing device according to a second embodiment of the present disclosure is shown.

[0029] Figure 4 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the second embodiment.

[0030] Figure 5 A schematic diagram of an imaging device according to a third embodiment of this disclosure is shown.

[0031] Figure 6 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the third embodiment.

[0032] Figure 7 A schematic diagram of an imaging device according to the fourth embodiment of this disclosure is shown.

[0033] Figure 8 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the fourth embodiment.

[0034] Figure 9 A schematic diagram of an imaging device according to the fifth embodiment of this disclosure is shown.

[0035] Figure 10 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the fifth embodiment.

[0036] Figure 11 A schematic diagram of an imaging device according to the sixth embodiment of this disclosure is shown.

[0037] Figure 12 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the sixth embodiment.

[0038] Figure 13 A schematic diagram of an imaging device according to the seventh embodiment of this disclosure is shown.

[0039] Figure 14 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the seventh embodiment.

[0040] Figure 15 A schematic diagram of an imaging device according to the eighth embodiment of this disclosure is shown.

[0041] Figure 16 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the eighth embodiment.

[0042] Figure 17 A schematic diagram of an imaging device according to the ninth embodiment of this disclosure is shown.

[0043] Figure 18 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the ninth embodiment.

[0044] Figure 19 A schematic diagram of an imaging device according to the tenth embodiment of this disclosure is shown.

[0045] Figure 20 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the tenth embodiment.

[0046] Figure 21 A perspective view of an imaging device according to the eleventh embodiment of this disclosure is shown.

[0047] Figure 22 A perspective view of one side of an electronic device according to the twelfth embodiment of this disclosure is shown.

[0048] Figure 23 Draw Figure 22 A three-dimensional diagram of the other side of the electronic device.

[0049] Figure 24 Draw Figure 22 System block diagram of an electronic device.

[0050] Figure 25 A schematic diagram of one side of an electronic device according to the thirteenth embodiment of this disclosure is shown.

[0051] Figure 26 Draw Figure 25 A schematic diagram of the other side of the electronic device.

[0052] Figure 27 A perspective view of one side of an electronic device according to the fourteenth embodiment of this disclosure is shown.

[0053] Figure 28 A perspective view of one side of an electronic device according to the fifteenth embodiment of this disclosure is shown.

[0054] Figure 29 A schematic diagram illustrating the inflection point and critical point on the lens surface according to the first embodiment of this disclosure.

[0055] Figure 30 A schematic diagram illustrating parameters Y1R1, Y3R2, Y4R1, and Y5R2 in the first embodiment according to this disclosure is shown.

[0056] Figure 31 A schematic diagram illustrating one configuration of a reflective element in an image-capturing lens system according to the present disclosure is shown.

[0057] Figure 32 A schematic diagram illustrating another configuration of a reflective element in an image-capturing lens system according to the present disclosure is shown.

[0058] Figure 33 A schematic diagram illustrating one configuration of two reflective elements in an image-capturing lens system according to the present disclosure is shown.

[0059] [Symbol Explanation]

[0060] 1,2,3,4,5,6,7,8,9,10,100,100a,100b,100c,100d,100e,100f,100g,100h,100i,100j,100k,100m,100n,100p,100q,100r,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, 401, 501: Flash module

[0067] 202: Focusing Assist Module

[0068] 203: Image Signal Processor

[0069] 204, 301: Display module

[0070] 205: Image Software Processor

[0071] 206: Subject

[0072] OA1: First optical axis

[0073] OA2: Second optical axis

[0074] OA3: Third optical axis

[0075] LF, LF1, LF2: Reflective elements

[0076] LG: Lens Group

[0077] ST: Aperture

[0078] S1, S2: Aperture

[0079] E1: First lens

[0080] E2: Second lens

[0081] E3: Third Lens

[0082] E4: Fourth Lens

[0083] E5: Fifth Lens

[0084] E6: Filter element

[0085] IMG: Imaging Surface

[0086] IS: Electronic photosensitive element

[0087] P: Inversion point

[0088] C: Critical point

[0089] Y1R1: Maximum effective radius of the object-side surface of the first lens

[0090] Y3R2: Maximum effective radius of the image-side surface of the third lens

[0091] Y4R1: Maximum effective radius of the object-side surface of the fourth lens

[0092] Y5R2: Maximum effective radius of the image-side surface of the fifth lens Detailed Implementation

[0093] The imaging lens system comprises five lenses, which are arranged sequentially from the object side to the image side along the optical path as a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. Each of the five lenses has an object-side surface facing the object side and an image-side surface facing the image side.

[0094] The first lens may have positive refractive power; this helps to reduce volume and improve the light-gathering ability of the imaging lens system. The object-side surface of the first lens may be convex near the optical axis; this helps to adjust the refractive power of the first lens and the viewing angle of the imaging lens system.

[0095] The second lens can have negative refractive power; this helps to balance the spherical aberration of the imaging lens system. The object-side surface of the second lens can be convex near the optical axis; this allows adjustment of the refractive power of the second lens, helping to balance the spherical aberration of the imaging lens system. The image-side surface of the second lens can be concave near the optical axis; this helps to correct the astigmatism of the imaging lens system, thereby balancing the imaging quality between the center and periphery of the image.

[0096] The object-side surface of the third lens can be convex near the optical axis; this can match the shape of the image-side surface of the second lens, helping to reduce the volume of the object-side end of the imaging lens system. The image-side surface of the third lens can be concave near the optical axis; this can adjust the direction of light emanating from the image-side surface of the third lens, helping to reduce stray light generation.

[0097] The fourth lens can have positive refractive power. This helps to converge light rays.

[0098] The object-side surface of the fifth lens can be concave near the optical axis. This allows for adjustment of the surface shape of the fifth lens, which helps correct off-axis image curvature.

[0099] Of the five lenses in the image-capturing lens system, at least one lens may have at least one inflection point. Specifically, one or more of the first to fifth lenses may have at least one inflection point, and the statement that a single lens has at least one inflection point means that at least one of the object-side surface and the image-side surface of that single lens has at least one inflection point. This increases the freedom of optical design and helps correct aberrations. Please refer to... Figure 29 This is a schematic diagram illustrating the inflection point P on the lens surface according to the first embodiment of this disclosure. Figure 29 In the image, the object-side surface of the third lens E3, the image-side surface of the third lens E3, the image-side surface of the fourth lens E4, and the image-side surface of the fifth lens E5 each have a recurve point P, and the object-side surface of the second lens E2 has two recurve points P. Figure 29 The illustration of the first embodiment of this disclosure is provided as an example. However, in other embodiments of this disclosure, each lens surface may have one or more inflection points.

[0100] The image-capturing lens system disclosed herein may further include at least one reflective element. This allows for different optical path orientations of the image-capturing lens system, enabling more flexible spatial configuration and helping to reduce structural limitations and miniaturize the system. Specifically, in the image-capturing lens system disclosed herein, at least one reflective element can be selectively disposed between the object and the imaging surface in the imaging optical path. This reflective element can be, for example, a prism or a mirror, wherein the prism surface or mirror surface can be a plane, spherical, aspherical, or freeform surface, providing a higher degree of spatial flexibility in the image-capturing lens system, allowing the thinner and lighter electronic device to be independent of the overall optical length of the image-capturing lens system. For further explanation, please refer to... Figure 31 and Figure 32 ,in Figure 31 This is a schematic diagram illustrating one configuration of a reflective element in an image-collecting lens system according to the present disclosure, and Figure 32 This is a schematic diagram illustrating another configuration of a reflective element in an image-collecting lens system according to this disclosure. For example... Figure 31 and Figure 32 As shown, the imaging lens system can travel along the optical path from the subject (not shown) to the imaging plane IMG, and sequentially includes a first optical axis OA1, a reflective element LF, and a second optical axis OA2, wherein the reflective element LF can be as follows: Figure 31 The image shown is positioned between the lens group LG of the subject and the image-capturing lens system, or as... Figure 32 The diagram shows the lens group LG positioned between the imaging lens system and the imaging plane IMG. Please also refer to... Figure 33 This is a schematic diagram illustrating one configuration of two reflective elements in an image-collecting lens system according to the present disclosure, such as... Figure 33 As shown, the imaging lens system can also follow the light path from the subject (not shown) to the imaging surface IMG, and sequentially includes a first optical axis OA1, a first reflective element LF1, a second optical axis OA2, a second reflective element LF2, and a third optical axis OA3. The first reflective element LF1 is disposed between the subject and the lens group LG of the imaging lens system, and the second reflective element LF2 is disposed between the lens group LG of the imaging lens system and the imaging surface IMG. Furthermore, the direction of light travel along the first optical axis OA1 can be as follows: Figure 33 The direction shown is the same as the direction of light travel along the third optical axis OA3. The imaging lens system may also be optionally configured with more than three reflective elements, and this disclosure is not limited to the type, number, and position of the reflective elements disclosed in the figures.

[0101] 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 Dr1r6, and the distance from the object side surface of the fourth lens to the image side surface of the fifth lens on the optical axis is Dr7r10, which can satisfy the following conditions: 1.60 < Dr1r6 / Dr7r10 < 5.00. Thereby, it helps to compress the volume of the image side end of the imaging lens system and improve the imaging quality. Among them, the following conditions can also be satisfied: 1.70 < Dr1r6 / Dr7r10 < 4.00. Among them, the following conditions can also be satisfied: 1.81 ≤ Dr1r6 / Dr7r10 ≤ 3.58.

[0102] The distance from the object side surface of the first lens to the image side surface of the fifth lens on the optical axis is TD, and the distance from the image side surface of the fifth lens to the imaging surface on the optical axis is BL, which can satisfy the following conditions: 0.50 < TD / BL < 1.50. Thereby, it helps the imaging lens system to exhibit better telescopic function. Among them, the following conditions can also be satisfied: 0.55 < TD / BL < 1.35. Among them, the following conditions can also be satisfied: 0.60 < TD / BL < 1.20. Among them, the following conditions can also be satisfied: 0.77 ≤ TD / BL ≤ 1.02.

[0103] The distance between the first lens and the second lens on the optical axis is T12, the distance between the second lens and the third lens on the optical axis is T23, the distance between the third lens and the fourth lens on the optical axis is T34, and the distance between the fourth lens and the fifth lens on the optical axis is T45, which can satisfy the following conditions: 0.00 < (T12 + T23 + T45) / T34 < 0.50. Thereby, the ratio of the lens spacing between the third lens and the fourth lens to the sum of all other lens spacings can be adjusted, which helps to reduce manufacturing tolerances. Among them, the following conditions can also be satisfied: 0.05 < (T12 + T23 + T45) / T34 < 0.45. Among them, the following conditions can also be satisfied: 0.10 ≤ (T12 + T23 + T45) / T34 ≤ 0.42.

[0104] The distance between the second lens and the third lens on the optical axis is T23, and the distance between the fourth lens and the fifth lens on the optical axis is T45, which can satisfy the following conditions: 0.00 < T23 / T45 < 0.50. Thereby, the ratio of the distance between the second lens and the third lens and the distance between the fourth lens and the fifth lens can be controlled, which helps to reduce the manufacturing sensitivity and correct aberrations at the same time. Among them, the following conditions can also be satisfied: 0.00 < T23 / T45 < 0.45. Among them, the following conditions can also be satisfied: 0.00 < T23 / T45 < 0.40. Among them, the following conditions can also be satisfied: 0.05 ≤ T23 / T45 ≤ 0.35.

[0105] The Abbe number of the fourth lens is V4, which can satisfy the following conditions: 5.0 < V4 < 35.0. Thereby, the Abbe number of the fourth lens can be adjusted, which helps to correct the chromatic aberration of the system. Among them, the following conditions can also be satisfied: 10.0 < V4 < 30.0. Among them, the following conditions can also be satisfied: 16.3 ≤ V4 ≤ 25.3.

[0106] The radius of curvature of the image-side surface of the second lens is R4, and the radius of curvature of the image-side surface of the fifth lens is R10, which can satisfy the following conditions: 0.00 < |R4 / R10| < 1.00. Thereby, it helps to correct coma and improve the light condensing quality at the paraxial and off-axis positions. Among them, the following conditions can also be satisfied: 0.00 < |R4 / R10| < 0.90. Among them, the following conditions can also be satisfied: 0.00 < |R4 / R10| < 0.80. Among them, the following conditions can also be satisfied: 0.06 ≤ |R4 / R10| ≤ 0.72.

[0107] The focal length of the imaging lens system is f, and the focal length of the third lens is f3, which can satisfy the following conditions: -0.25 < f / f3 < 5.00. Thereby, it can assist in balancing the refractive power of the object side and the image side of the imaging lens system, which helps to correct the system aberration. Among them, the following conditions can also be satisfied: -0.25 < f / f3 < 3.00. Among them, the following conditions can also be satisfied: -0.20 < f / f3 < 2.00. Among them, the following conditions can also be satisfied: -0.15 < f / f3 < 1.60.

[0108] The distance from the image-side surface of the fifth lens to the imaging plane on the optical axis is BL, and the maximum imaging height of the imaging lens system (which can be half of the total diagonal length of the effective sensing area of the electronic photosensitive element) is ImgH, which can satisfy the following conditions: 2.20 < BL / ImgH < 3.50. Thereby, it can balance the ratio of the back focal length to the imaging height, which helps to reduce the system distortion. Among them, the following conditions can also be satisfied: 2.50 < BL / ImgH < 3.20.

[0109] The distance from the object-side surface of the first lens to the imaging plane on the optical axis is TL, and the maximum imaging height of the imaging lens system is ImgH, which can satisfy the following conditions: 4.00 < TL / ImgH < 7.00. Thereby, it helps to control the ratio of the total length of the imaging lens system to the image height to be appropriate, while pursuing miniaturization of the imaging lens system, and maintaining sufficient brightness of the image. Among them, the following conditions can also be satisfied: 4.50 < TL / ImgH < 6.50. Among them, the following conditions can also be satisfied: 5.00 < TL / ImgH < 5.80.

[0110] The focal length of the first lens is f1, and the focal length of the second lens is f2, which can satisfy the following conditions: 0.50 < |f1 / f2| < 1.50. Thereby, the refractive powers of the first lens and the second lens can be coordinated with each other, which helps to correct aberrations. Among them, the following conditions can also be satisfied: 0.60 < |f1 / f2| < 1.20.

[0111] The focal length of the first lens is f1, and the focal length of the third lens is f3, which can satisfy the following conditions: 0.40 < f1 / f3 < 1.50. Thereby, it helps to balance the light converging ability at the object side end of the imaging lens system. Among them, the following conditions can also be satisfied: 0.60 < f1 / f3 < 1.35.

[0112] The focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the fourth lens is f4, and the focal length of the fifth lens is f5, which can satisfy the following conditions: -0.60 < (f1 + f2) / (f4 + f5) < 5.00. Thereby, it helps to balance the refractive power configuration of the imaging lens system to improve the imaging quality. Among them, the following conditions can also be satisfied: -0.50 < (f1 + f2) / (f4 + f5) < 4.00. Among them, the following conditions can also be satisfied: -0.40 < (f1 + f2) / (f4 + f5) < 3.00.

[0113] The radius of curvature of the object side surface of the fifth lens is R9, and the radius of curvature of the image side surface of the fifth lens is R10, which can satisfy the following conditions: -1.80 < R9 / R10 < 1.00. Thereby, it helps to adjust the refractive power and surface shape of the fifth lens to correct the off-axis aberration in the imaging lens system. Among them, the following conditions can also be satisfied: -1.60 < R9 / R10 < 0.80.

[0114] The radius of curvature of the image side surface of the third lens is R6, and the radius of curvature of the object side surface of the fourth lens is R7, which can satisfy the following conditions: -1.00 < R6 / R7 < 1.10. Thereby, the radii of curvature of the two adjacent mirror surfaces of the third lens and the fourth lens can be adjusted, which helps to reduce the imaging chromatic aberration in the peripheral field of view. Among them, the following conditions can also be satisfied: -0.90 < R6 / R7 < 1.00. Among them, the following conditions can also be satisfied: -0.80 < R6 / R7 < 0.90.

[0115] The distance on the optical axis from the image side surface of the first lens to the object side surface of the third lens is Dr2r5, and the distance on the optical axis from the image side surface of the fourth lens to the image side surface of the fifth lens is Dr8r10, which can satisfy the following conditions: 0.00 < Dr2r5 / Dr8r10 < 1.70. Thereby, it can ensure that the imaging lens system has an appropriate lens spacing, which helps with lens assembly and adjusting the device volume. Among them, the following conditions can also be satisfied: 0.30 < Dr2r5 / Dr8r10 < 1.50.

[0116] The Abbe number of the second lens is V2, which can satisfy the following conditions: 5.0 < V2 < 35.0. Thereby, it helps to correct the chromatic aberration in the imaging lens system, prevent the occurrence of imaging overlap, and improve the imaging quality. Among them, the following conditions can also be satisfied: 10.0 < V2 < 30.0.

[0117] The Abbe number of the third lens is V3, which can satisfy the following conditions: 45.0 < V3 < 70.0. Thereby, a lens material with low dispersion properties can be selected, which helps to balance the converging ability between light rays of different wavelength bands. Among them, the following conditions can also be satisfied: 50.0 < V3 < 60.0.

[0118] The maximum effective radius of the image-side surface of the third lens is Y3R2, and the maximum effective radius of the object-side surface of the fourth lens is Y4R1, which can satisfy the following conditions: 1.20 < Y3R2 / Y4R1 < 1.90. Thereby, it helps to reduce the volume of the image-side end of the imaging lens system, and promote the miniaturization of the imaging lens system. Among them, the following conditions can also be satisfied: 1.30 < Y3R2 / Y4R1 < 1.75. Please refer to Figure 30 , which is a schematic diagram showing the parameters Y3R2 and Y4R1 according to the first embodiment of the present disclosure.

[0119] The maximum viewing angle in the imaging lens system is FOV, which can satisfy the following conditions: 10.0 degrees < FOV < 25.0 degrees. Thereby, it helps to capture distant images, improve the local image resolution, and achieve a telephoto effect. Among them, the following conditions can also be satisfied: 13.0 degrees < FOV < 23.0 degrees.

[0120] The distance from the image-side surface of the fifth lens to the imaging surface on the optical axis is BL, and the distance between the third lens and the fourth lens on the optical axis is T34, which can satisfy the following conditions: 1.00 < BL / T34 < 4.50. Thereby, the ratio of the back focal length of the imaging lens system to the lens spacing between the third lens and the fourth lens can be adjusted, which helps to endow the imaging lens system with telephoto characteristics. Among them, the following conditions can also be satisfied: 1.50 < BL / T34 < 4.50.

[0121] 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: 0.00 < |R3 / R2| < 1.10. Thereby, it helps to control the refraction angle of light in the imaging lens system, and improve the peripheral image illuminance. Among them, the following conditions can also be satisfied: 0.00 < |R3 / R2| < 1.00. Among them, the following conditions can also be satisfied: 0.00 < |R3 / R2| < 0.90.

[0122] 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: -0.50 < (R5 - R6) / (R5 + R6) < 1.00. Thereby, it helps to adjust the refractive power and surface shape of the third lens, and further corrects the aberration. Among them, the following conditions can also be satisfied: -0.50 < (R5 - R6) / (R5 + R6) < 0.50. Among them, the following conditions can also be satisfied: -0.40 < (R5 - R6) / (R5 + R6) < 0.10.

[0123] 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: 2.00 < CT1 / CT2 < 5.50. Thereby, the ratio of the central thickness of the first lens and the second lens can be balanced, which helps to improve the structural stability of the imaging lens system. Among them, the following conditions can also be satisfied: 2.50 < CT1 / CT2 < 5.00.

[0124] The distance from the image-side surface of the fifth lens to the imaging surface on the optical axis is BL, and the sum of the interval distances of all adjacent lenses in the imaging lens system on the optical axis is ΣAT, which can satisfy the following conditions: 1.70 < BL / ΣAT < 3.80. Thereby, it helps to adjust the spatial configuration of the lenses, so that the imaging lens system has a telescopic effect. Among them, the following conditions can also be satisfied: 1.80 < BL / ΣAT < 3.50.

[0125] The interval distance between the third lens and the fourth lens on the optical axis is T34, and 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 Dr1r6, which can satisfy the following conditions: 0.50 < T34 / Dr1r6 < 1.60. Thereby, it helps to compress the volume of the object-side end of the imaging lens system. Among them, the following conditions can also be satisfied: 0.50 < T34 / Dr1r6 < 1.30.

[0126] The maximum effective radius of the object-side surface of the first lens is Y1R1, and the maximum effective radius of the image-side surface of the fifth lens is Y5R2, which can satisfy the following conditions: 1.60 < Y1R1 / Y5R2 < 3.50. Thereby, the ratio of the optical effective radius heights of the first lens and the fifth lens can be adjusted, which helps to reduce the incident angle of light on the imaging surface and improve the illuminance. Among them, the following conditions can also be satisfied: 1.60 < Y1R1 / Y5R2 < 2.50. Please refer to Figure 30 , which is a schematic diagram showing the parameters Y1R1 and Y5R2 according to the first embodiment of the present disclosure.

[0127] All the technical features in the imaging lens system disclosed in the present disclosure can be combined and configured to achieve the corresponding effects.

[0128] In the imaging lens system disclosed in this invention, the lens material can be glass or plastic. If the lens is made of glass, the freedom of refractive power configuration of the imaging lens system can be increased, and the influence of external environmental temperature changes on imaging can be reduced. Glass lenses can be manufactured using techniques such as grinding or molding. If the lens is made of plastic, production costs can be effectively reduced. Furthermore, spherical (SPH) or aspherical (ASP) surfaces can be incorporated into the lens surface. Spherical lenses reduce manufacturing difficulty, while aspherical surfaces provide more controllable variables to reduce aberrations, decrease the number of lenses, and effectively reduce the overall length of the imaging lens system disclosed in this invention. Further, aspherical surfaces can be manufactured using methods such as plastic injection molding or molding glass lenses.

[0129] In the imaging lens system disclosed herein, if the lens surface is aspherical, it means that all or part of the optically effective area of ​​the lens surface is aspherical.

[0130] The imaging lens system disclosed herein allows for the selective addition of additives to any (or more) lens materials to produce light absorption or interference effects, thereby altering the lens's transmittance for specific wavelengths of light and reducing stray light and color shift. For example, the additives may filter out light in the 600 nm to 800 nm wavelength range to help reduce excess red or infrared light; or they may filter out light in the 350 nm to 450 nm wavelength range to reduce excess blue or ultraviolet light. Therefore, the additives can prevent specific wavelengths of light from interfering with imaging. Furthermore, the additives can be uniformly mixed into a plastic material and manufactured into a lens using injection molding technology. Additionally, the additives can also be deposited on the lens surface as a coating to provide the aforementioned effects.

[0131] In the imaging lens system disclosed herein, 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, radius of curvature, or focal length of the lens near the optical axis.

[0132] In the imaging lens system disclosed in this disclosure, 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. Please refer to... Figure 29 This is a schematic diagram illustrating the critical point C on the lens surface according to the first embodiment of this disclosure. Figure 29In the image-side surface of the fifth lens E5, there is a critical point C at the off-axis. Figure 29 The illustration of the first embodiment of this disclosure is provided as an example. However, in other embodiments of this disclosure, each lens surface may have one or more critical points at the off-axis.

[0133] In the imaging lens system disclosed herein, the imaging surface of the imaging lens system 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.

[0134] In the imaging lens system 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 elements, 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 elements is to place a thin plano-concave element with a concave surface in the object-side direction close to the imaging plane.

[0135] The imaging lens system 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.

[0136] In the imaging lens system disclosed in this invention, the aperture can be configured as a front aperture or a center aperture. A front aperture means the aperture is positioned between the subject and the first lens, while a center 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, creating a telecentric effect and increasing the efficiency of image reception by the CCD or CMOS sensor. A center aperture helps to widen the field of view of the imaging lens system.

[0137] 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 shielding 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.

[0138] This disclosure allows for the appropriate placement of one or more optical elements to restrict the form of light passing through the imaging lens system. 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 at the object end, image end, or between lenses of the imaging lens system to control the passage of specific forms of light, thereby meeting application requirements.

[0139] The imaging lens system disclosed herein may include at least one optical lens, optical element, or carrier, at least one surface of which has a low-reflection layer, which can effectively reduce stray light generated by light reflection at the interface. The low-reflection layer may be disposed in the 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.

[0140] The imaging lens system 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 inner periphery of the light-shielding element may contain a wavy or serrated structure.

[0141] In the imaging lens system 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, and if the optical axis is turned by a reflective element, the data on the optical axis are also calculated along the optical axis.

[0142] Based on the above implementation methods, specific embodiments are presented below and described in detail with reference to the accompanying drawings.

[0143] <First Embodiment>

[0144] 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, and Figure 2 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the first embodiment. Figure 1It is known that the image capturing device 1 includes an image capturing lens system (unlabeled) and an electronic photosensitive element IS. The image capturing lens system, along the optical path from the object side to the image side, sequentially includes an aperture ST, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, an aperture stop S1, a fifth lens E5, a filter element E6, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The image capturing lens system comprises five lenses (E1, E2, E3, E4, E5), and there are no other interposed lenses between the lenses.

[0145] The first lens E1 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are spherical.

[0146] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has two inflection points.

[0147] The third lens E3 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 its image-side surface also has a point of inflection.

[0148] The fourth lens E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are aspherical, and its image-side surface has a point of inflection.

[0149] The fifth lens E5 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical. Its image-side surface has a point of inflection and a critical point off-axis.

[0150] The filter element E6 is made of glass and is located between the fifth lens E5 and the imaging surface IMG. It does not affect the focal length of the imaging lens system.

[0151] The equations for the aspherical surfaces of the above lenses are expressed as follows:

[0152]

[0153] 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;

[0154] Y: The perpendicular distance between a point on the aspherical curve and the optical axis;

[0155] R: Radius of curvature;

[0156] k: cone coefficient; and

[0157] Ai: The i-th order aspherical coefficient.

[0158] In the first embodiment of the image-capturing lens system, the focal length of the image-capturing lens system is f, the aperture value (F-number) of the image-capturing lens system is Fno, and half of the maximum angle of view of the image-capturing lens system is HFOV, with the following values: f = 21.72 mm, Fno = 2.83, HFOV = 9.3 degrees.

[0159] The maximum field of view (FOV) of the imaging lens system satisfies the following condition: FOV = 18.6 degrees.

[0160] 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 imaging lens system is ImgH, which satisfies the following condition: TL / ImgH=5.43.

[0161] The distance from the image-side surface of the fifth lens E5 to the imaging plane IMG on the optical axis is BL, and the maximum imaging height of the imaging lens system is ImgH, which satisfies the following condition: BL / ImgH=2.84.

[0162] The distance on the optical axis from the object-side surface of the first lens E1 to the image-side surface of the fifth lens E5 is TD, and the distance on the optical axis from the image-side surface of the fifth lens E5 to the imaging plane IMG is BL. They satisfy the following condition: TD / BL=0.91.

[0163] The distance from the image-side surface of the fifth lens E5 to the imaging plane IMG on the optical axis is BL, and the distance between the third lens E3 and the fourth lens E4 on the optical axis is T34, which satisfies the following condition: BL / T34 = 3.20. 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.

[0164] The distance BL between the image-side surface of the fifth lens E5 and the imaging plane IMG on the optical axis is given by the fifth lens E5. The sum of the optical axis spacing between all adjacent lenses in the imaging lens system is given by the fifth lens E5, which satisfies the following condition: BL / ΣAT = 2.74. In this embodiment, ΣAT is the sum of the optical axis spacing between any two adjacent lenses among the first lens E1, second lens E2, third lens E3, fourth lens E4, and fifth lens E5.

[0165] The focal length of the image-taking lens system is f, and the focal length of the third lens E3 is f3, which satisfies the following condition: f / f3 = 0.89.

[0166] The focal length of the first lens E1 is f1, and the focal length of the second lens E2 is f2, which satisfy the following condition: |f1 / f2|=0.98.

[0167] The focal length of the first lens E1 is f1, and the focal length of the third lens E3 is f3, which satisfies the following condition: f1 / f3 = 0.49.

[0168] The focal length of the first lens E1 is f1, the focal length of the second lens E2 is f2, the focal length of the fourth lens E4 is f4, and the focal length of the fifth lens E5 is f5. They satisfy the following condition: (f1+f2) / (f4+f5)=-0.12.

[0169] 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 Dr1r6, and the distance on the optical axis from the object-side surface of the fourth lens E4 to the image-side surface of the fifth lens E5 is Dr7r10. They satisfy the following condition: Dr1r6 / Dr7r10=2.68.

[0170] The distance on the optical axis from the image-side surface of the first lens E1 to the object-side surface of the third lens E3 is Dr2r5, and the distance on the optical axis from the image-side surface of the fourth lens E4 to the image-side surface of the fifth lens E5 is Dr8r10, which satisfies the following condition: Dr2r5 / Dr8r10=0.96.

[0171] 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: |R3 / R2|=0.57.

[0172] The radius of curvature of the image-side surface of the second lens E2 is R4, and the radius of curvature of the image-side surface of the fifth lens E5 is R10, which satisfies the following condition: |R4 / R10|=0.40.

[0173] The radius of curvature of the image-side surface of the third lens E3 is R6, and the radius of curvature of the object-side surface of the fourth lens E4 is R7, which satisfies the following condition: R6 / R7 = 0.14.

[0174] The radius of curvature of the object-side surface of the fifth lens E5 is R9, and the radius of curvature of the image-side surface of the fifth lens E5 is R10, which satisfies the following condition: R9 / R10=-0.63.

[0175] 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)=-0.16.

[0176] 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 = 4.46.

[0177] The optical axis spacing between the first lens E1 and the second lens E2 is T12, the optical axis spacing between the second lens E2 and the third lens E3 is T23, the optical axis spacing between the third lens E3 and the fourth lens E4 is T34, and the optical axis spacing between the fourth lens E4 and the fifth lens E5 is T45. They satisfy the following condition: (T12+T23+T45) / T34=0.17.

[0178] The distance between the second lens E2 and the third lens E3 on the optical axis is T23, and the distance between the fourth lens E4 and the fifth lens E5 on the optical axis is T45. They satisfy the following condition: T23 / T45=0.27.

[0179] The distance between the third lens E3 and the fourth lens E4 on the optical axis is T34, and the distance between the object-side surface of the first lens E1 and the image-side surface of the third lens E3 on the optical axis is Dr1r6, which satisfies the following condition: T34 / Dr1r6=0.71.

[0180] The Abbe number of the second lens E2 is V2, which satisfies the following condition: V2 = 25.6.

[0181] The Abbe number of the third lens E3 is V3, which satisfies the following condition: V3 = 56.0.

[0182] The Abbe number of the fourth lens E4 is V4, which satisfies the following condition: V4 = 16.3.

[0183] The maximum effective radius of the image-side surface of the third lens E3 is Y3R2, and the maximum effective radius of the object-side surface of the fourth lens E4 is Y4R1, which satisfies the following condition: Y3R2 / Y4R1=1.31.

[0184] The maximum effective radius of the object-side surface of the first lens E1 is Y1R1, and the maximum effective radius of the image-side surface of the fifth lens E5 is Y5R2, which satisfies the following condition: Y1R1 / Y5R2=1.73.

[0185] Please refer to Table 1A and Table 1B below.

[0186]

[0187]

[0188]

[0189] 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 15 sequentially represent the surfaces along the optical path 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 A14 represent the 4th to 14th 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.

[0190] <Second Embodiment>

[0191] 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, and 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 an image capturing lens system (unlabeled) and an electronic photosensitive element IS. The image capturing lens system, along the optical path from the object side to the image side, sequentially includes an aperture ST, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, an aperture stop S1, a fifth lens E5, a filter element E6, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The image capturing lens system comprises five lenses (E1, E2, E3, E4, E5), and there are no other interposed lenses between the lenses.

[0192] The first lens E1 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are spherical.

[0193] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has two inflection points.

[0194] The third lens E3 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.

[0195] The fourth lens E4 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are aspherical. Its object-side surface has a point of inflection, its image-side surface has a point of inflection, its object-side surface has a critical point off-axis, and its image-side surface has a critical point off-axis.

[0196] The fifth lens, E5, has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are aspherical.

[0197] The filter element E6 is made of glass and is located between the fifth lens E5 and the imaging surface IMG. It does not affect the focal length of the imaging lens system.

[0198] Please refer to Table 2A and Table 2B below.

[0199]

[0200]

[0201]

[0202] In the second embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in Table 2C below are the same as in the first embodiment and will not be repeated here.

[0203]

[0204]

[0205] <Third Embodiment>

[0206] 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, and 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 an image capturing lens system (unlabeled) and an electronic photosensitive element IS. The image capturing lens system, along the optical path from the object side to the image side, sequentially includes an aperture ST, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, an aperture stop S1, a fifth lens E5, a filter element E6, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The image capturing lens system comprises five lenses (E1, E2, E3, E4, E5), and there are no other interposed lenses between each lens.

[0207] The first lens E1 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are spherical.

[0208] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has one inflection point, and its image-side surface has two inflection points.

[0209] The third lens E3 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 its image-side surface also has a point of inflection.

[0210] The fourth lens E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical.

[0211] The fifth lens, E5, has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are aspherical.

[0212] The filter element E6 is made of glass and is located between the fifth lens E5 and the imaging surface IMG. It does not affect the focal length of the imaging lens system.

[0213] Please refer to Table 3A and Table 3B below.

[0214]

[0215]

[0216]

[0217] In the third embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions described in Table 3C below are the same as in the first embodiment and will not be repeated here.

[0218]

[0219]

[0220] <Fourth Embodiment>

[0221] 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, and Figure 8 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the fourth embodiment. Figure 7It is known that the image capturing device 4 includes an image capturing lens system (unlabeled) and an electronic photosensitive element IS. The image capturing lens system, along the optical path from the object side to the image side, sequentially includes an aperture ST, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, an aperture stop S1, a fifth lens E5, a filter element E6, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The image capturing lens system comprises five lenses (E1, E2, E3, E4, E5), and there are no other interposed lenses between the lenses.

[0222] The first lens E1 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are spherical.

[0223] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has two inflection points.

[0224] The third lens E3 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.

[0225] The fourth lens E4 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are aspherical. Its object-side surface has a point of inflection, its image-side surface has a point of inflection, its object-side surface has a critical point off-axis, and its image-side surface has a critical point off-axis.

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

[0227] The filter element E6 is made of glass and is located between the fifth lens E5 and the imaging surface IMG. It does not affect the focal length of the imaging lens system.

[0228] Please refer to Table 4A and Table 4B below.

[0229]

[0230]

[0231]

[0232] In the fourth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions described in Table 4C below are the same as in the first embodiment and will not be repeated here.

[0233]

[0234] <Fifth Embodiment>

[0235] 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, and 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 an image capturing lens system (unlabeled) and an electronic photosensitive element IS. The image capturing lens system, along the optical path from the object side to the image side, sequentially includes an aperture ST, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, an aperture stop S1, a fifth lens E5, a filter element E6, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The image capturing lens system comprises five lenses (E1, E2, E3, E4, E5), and there are no other interposed lenses between the lenses.

[0236] The first lens E1 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are spherical.

[0237] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has a point of inflection.

[0238] The third lens E3 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.

[0239] The fourth lens E4 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 of its surfaces are aspherical. Its object-side surface has two inflection points, its image-side surface has one inflection point, and its image-side surface has a critical point off-axis.

[0240] The fifth lens E5 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are aspherical. Its object-side surface has a point of inflection and a critical point off-axis.

[0241] The filter element E6 is made of glass and is located between the fifth lens E5 and the imaging surface IMG. It does not affect the focal length of the imaging lens system.

[0242] Please refer to Table 5A and Table 5B below.

[0243]

[0244]

[0245]

[0246] In the fifth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions described in Table 5C below are the same as in the first embodiment and will not be repeated here.

[0247]

[0248] <Sixth Embodiment>

[0249] 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, and 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 an image capturing lens system (unlabeled) and an electronic photosensitive element IS. The image capturing lens system, along the optical path from the object side to the image side, sequentially includes an aperture ST, a first lens E1, a second lens E2, a third lens E3, an aperture stop S1, a fourth lens E4, an aperture stop S2, a fifth lens E5, a filter element E6, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The image capturing lens system comprises five lenses (E1, E2, E3, E4, and E5), and there are no other interposed lenses between the lenses.

[0250] The first lens E1 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are spherical.

[0251] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical. Its object-side surface has a point of inflection, and its image-side surface also has a point of inflection.

[0252] The third lens E3 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 three inflection points, and its image-side surface has one inflection point.

[0253] The fourth lens E4 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are aspherical.

[0254] The fifth lens E5 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical. Its image-side surface has a point of inflection and a critical point off-axis.

[0255] The filter element E6 is made of glass and is located between the fifth lens E5 and the imaging surface IMG. It does not affect the focal length of the imaging lens system.

[0256] Please refer to Table 6A and Table 6B below.

[0257]

[0258]

[0259]

[0260] In the sixth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in Table 6C below are the same as in the first embodiment and will not be repeated here.

[0261]

[0262] <Seventh Embodiment>

[0263] 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, and 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 an image capturing lens system (unlabeled) and an electronic photosensitive element IS. The image capturing lens system, along the optical path from the object side to the image side, sequentially includes an aperture ST, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, an aperture stop S1, a fifth lens E5, a filter element E6, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The image capturing lens system comprises five lenses (E1, E2, E3, E4, E5), and there are no other interposed lenses between the lenses.

[0264] The first lens E1 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are spherical.

[0265] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has a point of inflection.

[0266] The third lens E3 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 its image-side surface also has a point of inflection.

[0267] The fourth lens E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are aspherical. Its object-side surface has a point of inflection and a critical point off-axis.

[0268] The fifth lens E5 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical. Its image-side surface has a point of inflection and a critical point off-axis.

[0269] The filter element E6 is made of glass and is located between the fifth lens E5 and the imaging surface IMG. It does not affect the focal length of the imaging lens system.

[0270] Please refer to Table 7A and Table 7B below.

[0271]

[0272]

[0273]

[0274] In the seventh embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in Table 7C below are the same as in the first embodiment and will not be repeated here.

[0275]

[0276] <Eighth Embodiment>

[0277] Please refer to Figures 15 to 16 ,in Figure 15 A schematic diagram of an image-capturing device according to the eighth embodiment of this disclosure is shown, and Figure 16 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the eighth embodiment. Figure 15It is known that the image capturing device 8 includes an image capturing lens system (unlabeled) and an electronic photosensitive element IS. The image capturing lens system, along the optical path from the object side to the image side, sequentially includes an aperture ST, a first lens E1, a second lens E2, a third lens E3, an aperture stop S1, a fourth lens E4, an aperture stop S2, a fifth lens E5, a filter element E6, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The image capturing lens system comprises five lenses (E1, E2, E3, E4, and E5), and there are no other interposed lenses between the lenses.

[0278] The first lens E1 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are spherical.

[0279] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical. Its object-side surface has one inflection point, and its image-side surface has two inflection points.

[0280] The third lens E3 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 its image-side surface also has a point of inflection.

[0281] The fourth lens E4 has positive refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are aspherical.

[0282] The fifth lens, E5, has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is convex near the optical axis. Both of its surfaces are aspherical.

[0283] The filter element E6 is made of glass and is located between the fifth lens E5 and the imaging surface IMG. It does not affect the focal length of the imaging lens system.

[0284] Please refer to Table 8A and Table 8B below.

[0285]

[0286]

[0287]

[0288] In the eighth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in Table 8C below are the same as in the first embodiment and will not be repeated here.

[0289]

[0290]

[0291] <Ninth Embodiment>

[0292] Please refer to Figures 17 to 18 ,in Figure 17 A schematic diagram of an image-capturing device according to the ninth embodiment of this disclosure is shown, and Figure 18 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the ninth embodiment. Figure 17 It is known that the image capturing device 9 includes an image capturing lens system (unlabeled) and an electronic photosensitive element IS. The image capturing lens system, along the optical path from the object side to the image side, sequentially includes an aperture ST, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, an aperture stop S1, a fifth lens E5, a filter element E6, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The image capturing lens system comprises five lenses (E1, E2, E3, E4, E5), and there are no other interposed lenses between the lenses.

[0293] The first lens E1 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are spherical.

[0294] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical. Its object-side surface has a point of inflection, and its image-side surface also has a point of inflection.

[0295] The third lens E3 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 its image-side surface also has a point of inflection.

[0296] The fourth lens E4 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.

[0297] The fifth lens E5 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 image-side surface has a critical point off-axis.

[0298] The filter element E6 is made of glass and is located between the fifth lens E5 and the imaging surface IMG. It does not affect the focal length of the imaging lens system.

[0299] Please refer to Table 9A and Table 9B below.

[0300]

[0301]

[0302]

[0303] In the ninth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions in Table 9C below are the same as in the first embodiment and will not be repeated here.

[0304]

[0305] <Tenth Embodiment>

[0306] Please refer to Figures 19 to 20 ,in Figure 19 A schematic diagram of an image-capturing device according to the tenth embodiment of this disclosure is shown, and Figure 20 From left to right, the graphs show the spherical aberration, astigmatism, and distortion curves of the tenth embodiment. Figure 19 As can be seen, the image capturing device 10 includes an image capturing lens system (unlabeled) and an electronic photosensitive element IS. The image capturing lens system, along the optical path from the object side to the image side, sequentially includes an aperture ST, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, an aperture stop S1, a fifth lens E5, a filter element E6, and an imaging surface IMG. The electronic photosensitive element IS is disposed on the imaging surface IMG. The image capturing lens system comprises five lenses (E1, E2, E3, E4, and E5), and there are no other interposed lenses between the lenses.

[0307] The first lens E1 has positive refractive power and is made of glass. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical.

[0308] The second lens E2 has negative refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both surfaces are aspherical, and its object-side surface has two inflection points.

[0309] 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.

[0310] The fourth lens E4 has positive refractive power and is made of plastic. Its object-side surface is convex near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical.

[0311] The fifth lens E5 has negative refractive power and is made of plastic. Its object-side surface is concave near the optical axis, and its image-side surface is concave near the optical axis. Both of its surfaces are aspherical. Its image-side surface has a point of inflection and a critical point off-axis.

[0312] The filter element E6 is made of glass and is located between the fifth lens E5 and the imaging surface IMG. It does not affect the focal length of the imaging lens system.

[0313] Please refer to Table 10A and Table 10B below.

[0314]

[0315]

[0316]

[0317] In the tenth embodiment, the equation for the aspherical curve is expressed as in the first embodiment. Furthermore, the definitions described in Table 10C below are the same as in the first embodiment and will not be repeated here.

[0318]

[0319]

[0320] <Eleventh Embodiment>

[0321] Please refer to Figure 21 This is a perspective view illustrating an image capturing device according to the eleventh 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 image capturing lens system of the first embodiment described above, a lens barrel (not otherwise labeled) for supporting the image capturing lens system, and a support device (Holder Member, not otherwise labeled). The imaging lens 101 can also be configured with the image capturing lens system 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.

[0322] 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), microelectromechanical 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 image capturing lens system, which can truly present the good image quality of the image capturing lens system.

[0323] 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.

[0324] <Twelfth Embodiment>

[0325] Please refer to Figures 22 to 24 ,in Figure 22 A perspective view of one side of an electronic device according to the twelfth embodiment of this disclosure is shown. Figure 23 Draw Figure 22 A three-dimensional diagram of the other side of the electronic device, and Figure 24 Draw Figure 22 System block diagram of an electronic device.

[0326] In this embodiment, the electronic device 200 is a smartphone. The electronic device 200 includes, according to the eleventh embodiment, image capturing devices 100, 100a, 100b, 100c, and 100d, a flash module 201, a focus assist module 202, an image signal processor 203, a display module 204, and an image software processor 205. Image capturing devices 100 and 100a are both located on the same side of the electronic device 200 and are both single-focus. The focus assist module 202 may employ a laser rangefinder or a Time-of-Flight (ToF) module, but this disclosure is not limited thereto. Image capturing devices 100b, 100c, and 100d, and display module 204 are all disposed on the other side of electronic device 200. Display module 204 can serve as a user interface, allowing image capturing devices 100b, 100c, and 100d to function as front-facing lenses for selfies; however, this disclosure is not limited to this. Furthermore, image capturing devices 100a, 100b, 100c, and 100d can all include the image capturing lens system disclosed herein and can all have a structural configuration similar to that of image capturing device 100. Specifically, each of image capturing devices 100a, 100b, 100c, and 100d can include an imaging lens, a driving device, an electronic photosensitive element, and an image stabilization module, and each can include a reflective element as a component for deflecting the light path. The imaging lenses of imaging devices 100a, 100b, 100c and 100d may each include, for example, the imaging lens system disclosed herein, a lens barrel for carrying the imaging lens system and a support device.

[0327] Image capturing device 100 is a telephoto image capturing device, image capturing device 100a is a wide-angle image capturing device, image capturing device 100b is a wide-angle image capturing device, image capturing device 100c is an ultra-wide-angle image capturing device, and image capturing device 100d is a time-of-flight ranging image capturing device. In this embodiment, image capturing devices 100 and 100a have different viewing angles, allowing the electronic device 200 to provide different magnifications to achieve optical zoom shooting effects. Additionally, image capturing device 100d can acquire depth information of the image. Furthermore, image capturing devices 100, 100a, 100b, 100c, and 100d can have optical path reversal configurations, and can, for example, have similar... Figures 31 to 33 The structure can be referred to the aforementioned corresponding structure. Figures 31 to 33 The above-described electronic device 200 is exemplified by including multiple image capturing devices 100, 100a, 100b, 100c and 100d, but the number and configuration of the image capturing devices are not intended to limit this disclosure.

[0328] When the user photographs the subject 206, the electronic device 200 uses the image capturing device 100 or image capturing device 100a to focus the light, activates the flash module 201 for supplemental lighting, and uses the subject distance information of the subject 206 provided by the focus assist module 202 for fast focusing. Furthermore, the image signal processor 203 performs image optimization processing to further improve the image quality produced by the image capturing lens system. The focus assist module 202 can use an infrared or laser focus assist system to achieve fast focusing. In addition, the electronic device 200 can also use the image capturing devices 100b, 100c, or 100d for shooting. The display module 204 can use a touch screen, combined with the diverse functions of the image software processor 205 for image capturing and image processing (or can use a physical shooting button). The image processed by the image software processor 205 can be displayed on the display module 204.

[0329] <Thirteenth Embodiment>

[0330] Please refer to Figure 25 and Figure 26 ,in Figure 25 A schematic diagram showing one side of an electronic device according to the thirteenth embodiment of this disclosure is provided. Figure 26 Draw Figure 25 A schematic diagram of the other side of the electronic device.

[0331] In this embodiment, the electronic device 300 is a smartphone. The electronic device 300 includes, according to the eleventh embodiment, image-capturing devices 100, 100e, 100f, and 100g, and a display module 301. Figure 25 As shown, image capturing devices 100, 100e, and 100f are all located on the same side of the electronic device 300 and are all single-focus. Figure 26 As shown, the image capturing device 100g and the display module 301 are both disposed on the other side of the electronic device 300. The image capturing device 100g can serve as a front-facing lens to provide a selfie function, but this disclosure is not limited thereto. Furthermore, the image capturing devices 100e, 100f, and 100g can all include the image capturing lens system 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 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 the image capturing devices 100e, 100f, and 100g can each include, for example, the image capturing lens system disclosed herein, a lens barrel for supporting the image capturing lens system, and a support device.

[0332] Image capturing device 100 is a telephoto 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 wide-angle image capturing device. In this embodiment, image capturing devices 100, 100e, and 100f have different viewing angles, allowing the electronic device 300 to provide different magnifications to achieve an optical zoom shooting effect. Furthermore, as... Figure 26 As shown, the opening of the image capturing device 100g can be non-circular, and the lens barrel or lens inside the image capturing device 100g 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 100g, which helps to reduce the lens volume, increase the area ratio of the display module 301 relative to the electronic device 300, and reduce the thickness of the electronic device 300, further achieving module miniaturization. The aforementioned electronic device 300 is exemplified by including multiple image capturing devices 100, 100e, 100f, and 100g, but the number and configuration of the image capturing devices are not intended to limit this disclosure.

[0333] <Fourteenth Embodiment>

[0334] Please refer to Figure 27 This is a perspective view illustrating one side of an electronic device according to the fourteenth embodiment of this disclosure.

[0335] In this embodiment, the electronic device 400 is a smartphone. The electronic device 400 includes, according to the eleventh embodiment, 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). 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 image capturing lens system 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.

[0336] Image capturing device 100 is a telescopic image capturing device with a reversible optical path, image capturing device 100h is a wide-angle 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 100 can be a telescopic image capturing device with a reversible optical path element (reflective element), so that the total length of image capturing device 100 is not limited by the thickness of the electronic device 400. The reversible optical path configuration of image capturing device 100 can, for example, have a similar... Figures 31 to 33 The structure can be referred to the aforementioned corresponding structure. Figures 31 to 33 The explanation will not be repeated here. Furthermore, the imaging devices 100h and 100i may also have an optical path reversal configuration, and may also have, for example, similar... Figures 31 to 33 The structure can be referred to the aforementioned corresponding structure. Figures 31 to 33 The above-described electronic device 400 is exemplified by including 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 image capturing device 100, image capturing device 100h, or image capturing device 100i to focus light and capture an image, activates the flash module 401 for supplementary lighting, and performs subsequent processing in a manner similar to the aforementioned embodiments, which will not be described in detail here.

[0337] <Fifteenth Embodiment>

[0338] Please refer to Figure 28 This is a perspective view illustrating one side of an electronic device according to the fifteenth embodiment of this disclosure.

[0339] In this embodiment, the electronic device 500 is a smartphone. The electronic device 500 includes, according to the eleventh 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 image capturing lens system 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.

[0340] Image capturing device 100 is a telescopic image capturing device with a reversible optical path; image capturing device 100k is a telescopic image capturing device with a reversible optical path; image capturing device 100j is an ultra-wide-angle image capturing device; image capturing device 100m is an ultra-wide-angle image capturing device; image capturing device 100n is a wide-angle image capturing device; image capturing device 100p is a wide-angle image capturing device; image capturing device 100q is a telescopic image capturing device; image capturing device 100r is a telescopic 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 device 100 and image capturing device 100k can be telescopic image capturing devices configured with optical path deflection elements (reflective elements), so that the total length of the image capturing device 100 and image capturing device 100k is not limited by the thickness of the electronic device 500. Additionally, the image capturing device 100s can acquire depth information of the image. The optical path deflection configuration of the image capturing devices 100 and 100k can, for example, have a similar... Figures 31 to 33 The structure can be referred to the aforementioned corresponding structure. Figures 31 to 33 The explanation will not be repeated here. Furthermore, the imaging devices 100j, 100m, 100n, 100p, 100q, 100r, and 100s may also have an optical path reversal configuration, and may also have, for example, similar... Figures 31 to 33 The structure can be referred to the aforementioned corresponding structure. Figures 31 to 33 The above-described electronic device 500 is exemplified by including multiple image capturing devices 100, 100j, 100k, 100m, 100n, 100p, 100q, 100r, and 100s, 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 500 uses image capturing devices 100, 100j, 100k, 100m, 100n, 100p, 100q, 100r, or 100s to focus light and capture 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 described in detail here.

[0341] 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 products, tablet computers, smart TVs, network monitoring equipment, dashcams, reversing cameras, multi-lens devices, recognition systems, motion-sensing game consoles, mobile vehicles, unmanned aerial vehicles, wearable products, and personal video recorders. 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.

[0342] 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. An image-capturing lens system, characterized in that, It includes five lenses. The five lenses are, in order from the object side to the image side along the optical path, the first lens, the second lens, the third lens, the fourth lens, and the fifth lens. And the five 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 second lens has a negative refractive power, and the image-side surface of the second lens is concave near the optical axis; and Among them, 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 Dr1r6, the distance on the optical axis from the object-side surface of the fourth lens to the image-side surface of the fifth lens is Dr7r10, the distance on the optical axis from the object-side surface of the first lens to the image-side surface of the fifth lens is TD, the distance on the optical axis from the image-side surface of the fifth lens to an imaging surface is BL, the distance on the optical axis between the first lens and the second lens is T12, the distance on the optical axis between the second lens and the third lens is T23, the distance on the optical axis between the third lens and the fourth lens is T34, the distance on the optical axis between the fourth lens and the fifth lens is T45, the Abbe number of the fourth lens is V4, the radius of curvature of the image-side surface of the second lens is R4, the radius of curvature of the image-side surface of the fifth lens is R10, and they satisfy the following conditions: [[ID=�]]1.60 < Dr1r6 / Dr7r10 < 5.00; 0.50 < TD / BL < 1.50; 0.00 < (T12 + T23 + T45) / T34 < 0.50; 0.00 < T23 / T45 < 0.50; 5.0 < V4 < 35.0; and 0.00 < |R4 / R10| < 1.

00.

2. The image-capturing lens system according to claim 1, characterized in that, The object-side surface of the first lens is convex near the optical axis, the object-side surface of the second lens is convex near the optical axis, the object-side surface of the third lens is convex near the optical axis, and the image-side surface of the third lens is concave near the optical axis; and Among them, the focal length of the imaging lens system is f, and the focal length of the third lens is f3, and they satisfy the following conditions: -0.25 < f / f3 < 5.

00.

3. The image-capturing lens system according to claim 1, characterized in that, At least one lens in the imaging lens system has at least one inflection point; and Among them, the distance on the optical axis from the image-side surface of the fifth lens to the imaging surface is BL, the maximum imaging height of the imaging lens system is ImgH, and the distance on the optical axis from the object-side surface of the first lens to the imaging surface is TL, and they satisfy the following conditions: 2.20 < BL / ImgH < 3.50; and 4.00 < TL / ImgH < 7.

00.

4. The image-capturing lens system according to claim 1, characterized in that, The focal length of the first lens is f1, and the focal length of the second lens is f2, and they satisfy the following conditions: 0.50 < |f1 / f2| < 1.

50.

5. The image-capturing lens system according to claim 1, characterized in that, The focal length of the first lens is f1, and the focal length of the third lens is f3, and they satisfy the following conditions: 0.40 < f1 / f3 < 1.

50.

6. The image-capturing lens system according to claim 1, characterized in that, The focal length of the first lens is f1, the focal length of the second lens is f2, the focal length of the fourth lens is f4, and the focal length of the fifth lens is f5, and they satisfy the following conditions: -0.60 < (f1 + f2) / (f4 + f5) < 5.00。 7. The image-capturing lens system according to claim 1, characterized in that, The radius of curvature of the image-side surface of the third lens is R6, the radius of curvature of the object-side surface of the fourth lens is R7, the radius of curvature of the object-side surface of the fifth lens is R9, and the radius of curvature of the image-side surface of the fifth lens is R10, which satisfy the following conditions: -1.80 < R9 / R10 < 1.00; and -1.00 < R6 / R7 < 1.10。 8. The image-capturing lens system according to claim 1, characterized in that, The imaging lens system further includes at least one reflecting element.

9. The image-capturing lens system according to claim 1, characterized in that, The distance on the optical axis from the image-side surface of the first lens to the object-side surface of the third lens is Dr2r5, and the distance on the optical axis from the image-side surface of the fourth lens to the image-side surface of the fifth lens is Dr8r10, which satisfy the following conditions: 0.00 < Dr2r5 / Dr8r10 < 1.70。 10. The image-capturing lens system 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: 5.0 < V2 < 35.0; and 45.0<V3<70.0。 11. The image-capturing lens system according to claim 1, characterized in that, The maximum effective radius of the image-side surface of the third lens is Y3R2, and the maximum effective radius of the object-side surface of the fourth lens is Y4R1, which satisfy the following conditions: 1.20 < Y3R2 / Y4R1 < 1.90。 12. The image-capturing lens system according to claim 1, characterized in that, 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 Dr1r6, the distance on the optical axis from the object-side surface of the fourth lens to the image-side surface of the fifth lens is Dr7r10, the distance on the optical axis from the object-side surface of the first lens to the image-side surface of the fifth lens is TD, the distance on the optical axis from the image-side surface of the fifth lens to the imaging surface is BL, the distance on the optical axis between the first lens and the second lens is T12, the distance on the optical axis between the second lens and the third lens is T23, the distance on the optical axis between the third lens and the fourth lens is T34, and the distance on the optical axis between the fourth lens and the fifth lens is T45, which satisfy the following conditions: 1.70 < Dr1r6 / Dr�r10 < 4.00; 0.60 < TD / BL < 1.20; 0.00 < T23 / T45 < 0.40; and 0.05 < (T12 + T23 + T45) / T34 < 0.45。 13. An image capturing device, characterized in that, Comprising: The imaging lens system according to claim 1; and An electronic photosensitive element disposed on the imaging surface of the imaging lens system.

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

15. An image-capturing lens system, characterized in that, Comprising five lenses, which are, in order from the object side to the image side along the optical path, the first lens, the second lens, the third lens, the fourth lens, and the fifth lens, and the five lenses respectively have an object-side surface facing the object side and an image-side surface facing the image side; Wherein, the first lens has a positive refractive power, the second lens has a negative refractive power, the object-side surface of the second lens is convex near the optical axis, and the object-side surface of the fifth lens is concave near the optical axis; and Among them, 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 Dr1r6, the distance on the optical axis from the object side surface of the fourth lens to the image side surface of the fifth lens is Dr7r10, the distance on the optical axis from the object side surface of the first lens to the image side surface of the fifth lens is TD, the distance on the optical axis from the image side surface of the fifth lens to an imaging surface is BL, the distance on the optical axis between the first lens and the second lens is T12, the distance on the optical axis between the second lens and the third lens is T23, the distance on the optical axis between the third lens and the fourth lens is T34, and the distance on the optical axis between the fourth lens and the fifth lens is T45, which satisfy the following conditions: 1.60 < Dr1r6 / Dr7r10 < 5.00; 0.50 < TD / BL < 1.50; 0.00 < (T12 + T23 + T45) / T34 < 0.50; and 0.00 < T23 / T45 < 0.

50.

16. The image-capturing lens system according to claim 15, characterized in that, The object side surface of the first lens is convex near the optical axis, the image side surface of the second lens is concave near the optical axis, the object side surface of the third lens is convex near the optical axis, and the fourth lens has a positive refractive power; and Among them, the focal length of the imaging lens system is f, and the focal length of the third lens is f3, which satisfy the following conditions: -0.20 < f / f3 < 2.

00.

17. The image-capturing lens system according to claim 15, characterized in that, At least one lens in the imaging lens system has at least one inflection point; and Among them, the maximum viewing angle in the imaging lens system is FOV, which satisfy the following conditions: 10.0 degrees < FOV < 25.0 degrees.

18. The image-capturing lens system according to claim 15, characterized in that, The distance on the optical axis from the image side surface of the fifth lens to the imaging surface is BL, and the distance on the optical axis between the third lens and the fourth lens is T34, which satisfy the following conditions: 1.00 < BL / T34 < 4.

50.

19. The image-capturing lens system according to claim 15, 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: 0.00 < |R3 / R2| < 1.

10.

20. The image-capturing lens system according to claim 15, characterized in that, The radius of curvature of the object side surface of the third lens is R5, and the radius of curvature of the image side surface of the third lens is R6, which satisfy the following conditions: -0.50 < (R5 - R6) / (R5 + R6) < 1.

00.

21. The image-capturing lens system according to claim 15, 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: 2.00 < CT1 / CT2 < 5.

50.

22. The image-capturing lens system according to claim 15, characterized in that, The distance on the optical axis from the image side surface of the fifth lens to the imaging surface is BL, and the sum of the distances on the optical axis between all adjacent lenses in the imaging lens system is ΣAT, which satisfy the following conditions: 1.70 < BL / ΣAT < 3.

80.

23. The image-capturing lens system according to claim 15, characterized in that, The distance on the optical axis between the third lens and the fourth lens is T34, and 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 Dr1r6, which satisfy the following conditions: 0.50 < T34 / Dr1r6 < 1.

60.

24. The image-capturing lens system according to claim 15, characterized in that, The maximum effective radius of the object-side surface of the first lens is Y1R1, and the maximum effective radius of the image-side surface of the fifth lens is Y5R2, which satisfy the following conditions: 1.60 <Y1R1 / Y5R2<3.50。 25. The image-capturing lens system according to claim 15, characterized in that, 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 Dr1r6, the distance on the optical axis from the object-side surface of the fourth lens to the image-side surface of the fifth lens is Dr7r10, the distance on the optical axis from the object-side surface of the first lens to the image-side surface of the fifth lens is TD, the distance on the optical axis from the image-side surface of the fifth lens to the imaging plane is BL, the optical axis spacing between the first lens and the second lens is T12, the optical axis spacing between the second lens and the third lens is T23, the optical axis spacing between the third lens and the fourth lens is T34, the optical axis spacing between the fourth lens and the fifth lens is T45, the Abbe number of the fourth lens is V4, the radius of curvature of the image-side surface of the second lens is R4, and the radius of curvature of the image-side surface of the fifth lens is R10, which satisfies the following conditions: 1.81≤Dr1r6 / Dr7r10≤3.58; 0.77≤TD / BL≤1.02; 0.10≤(T12+T23+T45) / T34≤0.42; 0.05≤T23 / T45≤0.35; 16.3 ≤ V4 ≤ 25.3; and 0.06≤|R4 / R10|≤0.72.

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