Imaging lens, camera module and electronic device

Abstract

An imaging lens, a camera module and an electronic device are disclosed. The imaging lens has an optical axis and includes an imaging lens group and a lens holding element. The optical axis passes through the imaging lens group. The lens holding element accommodates the imaging lens group and aligns the imaging lens group with the optical axis. The lens holding element includes a plurality of light shielding structures disposed on an object side of the imaging lens group and surrounding the optical axis to form a light passing hole. Each of the light shielding structures has a linear shape with two end points and a middle point. The middle point is closer to the optical axis than the two end points. A maximum radius of the light passing hole can be defined around each of the end points of each of the light shielding structures. A minimum radius of the light passing hole can be defined around the middle point of each of the light shielding structures closest to the optical axis. Thus, the generation of ghosting can be effectively controlled, and the imaging quality can be improved.

Description

Technical Field

[0001] This disclosure relates to an imaging lens and camera module, and more particularly to a miniaturized imaging lens and camera module for use in electronic devices. Background Technology

[0002] In recent years, portable electronic devices have developed rapidly, such as smart electronic devices and tablet computers, which have become ubiquitous in modern life. Consequently, camera modules, imaging lenses, and their lens elements mounted on these portable electronic devices have also flourished. However, as technology advances, users' demands for the quality of lens elements are also increasing. Therefore, improving the assembly precision of optical components has become an important and urgent problem for the industry. Summary of the Invention

[0003] This disclosure provides an imaging lens, camera module, and electronic device that forms a light-shielding aperture through the configuration of a light-shielding structure, which can effectively control the generation of ghosting and thus improve image quality.

[0004] According to one embodiment of this disclosure, an imaging lens is provided, which has an optical axis and includes an imaging lens group and a lens holding element. The optical axis passes through the imaging lens group, and the lens holding element houses the imaging lens group, aligning the imaging lens group with the optical axis. The lens holding element includes a plurality of light-shielding structures disposed on an object side of the imaging lens group and forming a light-transmitting aperture around the optical axis. Each light-shielding structure is linear and has two endpoints and a midpoint, with each midpoint closer to the optical axis than its two endpoints. A maximum radius Rmax of the light-transmitting aperture can be defined near each endpoint of each light-shielding structure, and a minimum radius Rmin of the light-transmitting aperture can be defined near the midpoint of each light-shielding structure closest to the optical axis. The total number of light-shielding structures is N, which satisfies the following condition: 3 ≤ N < 40. The lens holding element may further include a plurality of radius structures, each radius structure connecting the endpoints of adjacent light-shielding structures, and the center of each radius structure coincides with the center of the light-transmitting aperture. The light-shielding structures and radius structures are alternately connected to form the light-transmitting aperture, and the radius structures are arc-shaped.

[0005] The imaging lens according to the aforementioned embodiment is wherein the lens holding element and the light-shielding structure are integrally formed.

[0006] The imaging lens according to the aforementioned embodiment has no contact between the light-shielding structure and the imaging lens group.

[0007] According to the imaging lens of the aforementioned embodiment, when the total number of light-blocking structures is between 7 and 22, the light-transmitting aperture has a roundness tolerance value t and a roundness coefficient tc, which satisfy the following conditions: 0.01 < t < 0.08; and 1.02% < tc < 9.90%; where t = Rmax - Rmin, tc = t / Rmax × 100%. Additionally, it can satisfy the following condition: 1.12% < tc < 8.05%.

[0008] According to the imaging lens of the aforementioned embodiment, the two endpoints of each light-shielding structure have an included angle θ with the line connecting them to the optical axis. Furthermore, the minimum radius Rmin of the light-transmitting aperture can be defined as the equivalent number of light-shielding structures, N'. The light-transmitting aperture has a roundness tolerance value t and a roundness coefficient tc, which satisfy the following conditions: N' = 360° / θ; 7 < N' < 22; 0.01 < t < 0.08; and 1.02% < tc < 9.90%; where N' ≠ N, t = Rmax - Rmin, tc = t / Rmax × 100%. It also satisfies the following condition: 1.12% < tc < 8.05%.

[0009] According to the imaging lens of the aforementioned embodiment, each light-shielding structure is formed by connecting and intersecting a first tapered surface and a second tapered surface. Furthermore, the first tapered surface faces the object side of the imaging lens and tapers towards the image side of the imaging lens, while the second tapered surface faces the image side of the imaging lens and tapers towards the object side of the imaging lens.

[0010] According to the imaging lens of the aforementioned embodiment, each light-shielding structure overlaps with the imaging lens group along the direction parallel to the optical axis.

[0011] According to the imaging lens of the aforementioned embodiment, the light-passing hole is an aperture of the imaging lens, used to control the amount of light entering the imaging lens.

[0012] The imaging lens according to the aforementioned embodiment has a focal length of EFL, which satisfies the following condition: 1.0 < EFL / (2×Rmin) < 3.0.

[0013] In the imaging lens according to the aforementioned embodiment, the light-transmitting aperture can be N-sided. Alternatively, the light-transmitting aperture can be a regular polygon.

[0014] The imaging lens according to the foregoing embodiment may have at least two injection marks.

[0015] According to one embodiment of the present disclosure, a camera module is provided, which includes the imaging lens of the aforementioned embodiment.

[0016] According to one embodiment of the present disclosure, an electronic device is provided, which includes a camera module provided in the foregoing embodiments and an electronic photosensitive element, wherein the electronic photosensitive element is disposed on the imaging surface of the camera module. Attached Figure Description

[0017] Figure 1A This is a perspective view illustrating an imaging lens in a first embodiment according to the first embodiment of the present disclosure;

[0018] Figure 1B Drawing according to Figure 1A Exploded view of the imaging lens;

[0019] Figure 1C Drawing according to Figure 1A Another exploded view of the imaging lens;

[0020] Figure 1D Drawing according to Figure 1A Side view of the imaging lens;

[0021] Figure 1E Drawing according to Figure 1A A schematic diagram of the image side of a medium-resolution imaging lens;

[0022] Figure 1F for Figure 1E A sectional view along section line 1F-1F;

[0023] Figure 1G for Figure 1E A cross-sectional view of the lens holding element along section line 1F-1F;

[0024] Figure 1H Drawing according to Figure 1B A schematic diagram of the light-shielding structure on the lens retaining element;

[0025] Figure 1I This is a perspective view illustrating the imaging lens in a second embodiment of the first embodiment according to the present disclosure;

[0026] Figure 1J Drawing according to Figure 1I Side view of the imaging lens;

[0027] Figure 1K Drawing according to Figure 1I A schematic diagram of the image side of a medium-resolution imaging lens;

[0028] Figure 1L for Figure 1K A sectional view along section line 1L-1L;

[0029] Figure 1M for Figure 1K A cross-sectional view of the lens holding element along section line 1L-1L;

[0030] Figure 1N Drawing according to Figure 1I A schematic diagram of the light-shielding structure on the lens retaining element;

[0031] Figure 10 A schematic diagram illustrating the light-shielding structure on the lens holding element of the imaging lens in a third embodiment of the first embodiment according to the present disclosure;

[0032] Figure 2A This is a perspective view illustrating the imaging lens in the first embodiment of the second embodiment according to the present disclosure;

[0033] Figure 2B Drawing according to Figure 2A Exploded view of the imaging lens;

[0034] Figure 2C Drawing according to Figure 2A Another exploded view of the imaging lens;

[0035] Figure 2D Drawing according to Figure 2A Side view of the imaging lens;

[0036] Figure 2E Drawing according to Figure 2A A schematic diagram of the image side of a medium-resolution imaging lens;

[0037] Figure 2F for Figure 2E A sectional view along section line 2F-2F;

[0038] Figure 2G for Figure 2E A cross-sectional view of the lens retaining element along section line 2F-2F;

[0039] Figure 2H Drawing according to Figure 2B A schematic diagram of the light-shielding structure on the lens retaining element;

[0040] Figure 2I This is a perspective view illustrating the imaging lens in a second embodiment according to the second embodiment of the present disclosure;

[0041] Figure 2J Drawing according to Figure 2I Side view of the imaging lens;

[0042] Figure 2K Drawing according to Figure 2I A schematic diagram of the image side of a medium-resolution imaging lens;

[0043] Figure 2L for Figure 2K A sectional view along section line 2L-2L;

[0044] Figure 2M for Figure 2K A cross-sectional view of the lens holding element along section line 2L-2L;

[0045] Figure 2N Drawing according to Figure 2I A schematic diagram of the light-shielding structure and radius structure on the lens retaining element;

[0046] Figure 2O A schematic diagram illustrating the light-shielding structure on the lens holding element of the imaging lens in a third embodiment according to the second embodiment of this disclosure;

[0047] Figure 3A This is a perspective view illustrating the imaging lens in the first embodiment of the third embodiment according to the present disclosure;

[0048] Figure 3B Drawing according to Figure 3A Exploded view of the imaging lens;

[0049] Figure 3C Drawing according to Figure 3A Another exploded view of the imaging lens;

[0050] Figure 3D Drawing according to Figure 3A Side view of the imaging lens;

[0051] Figure 3E Drawing according to Figure 3A A schematic diagram of the image side of a medium-resolution imaging lens;

[0052] Figure 3F for Figure 3E A sectional view along section line 3F-3F;

[0053] Figure 3G for Figure 3E A cross-sectional view of the lens retaining element along section line 3F-3F;

[0054] Figure 3H Drawing according to Figure 3B A schematic diagram of the light-shielding structure on the lens retaining element;

[0055] Figure 3I This is a perspective view illustrating the imaging lens in the second embodiment of the third embodiment according to the present disclosure;

[0056] Figure 3J Drawing according to Figure 3I Side view of the imaging lens;

[0057] Figure 3K Drawing according to Figure 3I A schematic diagram of the image side of a medium-resolution imaging lens;

[0058] Figure 3L for Figure 3K A sectional view along section line 3L-3L;

[0059] Figure 3M for Figure 3K A cross-sectional view of the lens retaining element along section line 3L-3L;

[0060] Figure 3N Drawing according to Figure 3I A schematic diagram of the light-shielding structure and radius structure on the lens retaining element;

[0061] Figure 3O A schematic diagram illustrating the light-shielding structure and radius structure on the lens holding element of the imaging lens in a third embodiment of the third embodiment of the present disclosure;

[0062] Figure 4A A schematic diagram illustrating an electronic device according to one embodiment of the fourth description of this disclosure;

[0063] Figure 4B Drawing according to Figure 4A Block diagram of the electronic device;

[0064] Figure 4C Drawing according to Figure 4A A schematic diagram of a selfie scene in the embodiment; and

[0065] Figure 4D Drawing according to Figure 4A A schematic diagram of the images captured in the embodiment.

[0066] [Symbol Explanation]

[0067] 10: Electronic devices

[0068] 11: Camera Module

[0069] 12: Electronic photosensitive element

[0070] 13: User Interface

[0071] 14: Imaging signal processing element

[0072] 15: Optical anti-shake component

[0073] 16: Sensing element

[0074] 17: Flash module

[0075] 18: Focusing Assist Module

[0076] 100, 200, 300: Imaging lens

[0077] 1101, 2101, 3101: Optical lenses

[0078] 1102, 2102, 3102: Light-blocking sheet

[0079] 1103, 2103, 3103: Lens spacing maintaining element

[0080] 1104, 2104, 3104: Fixing ring

[0081] 120, 220, 320: Lens holding element

[0082] 1201, 2201, 3201: Light-transmitting apertures

[0083] 121, 121a, 121b, 221, 321: Light-shielding structures

[0084] 1211,1211a,1211b,2211,3211: Endpoints

[0085] 1212,1212a,1212b,2212,3212: Midpoint

[0086] 122,222,322: First tapering surface

[0087] 123,223,323: Second tapering surface

[0088] 124: Injection marks

[0089] 225, 325: Radius structure

[0090] θ, θa, θb: included angle

[0091] Rmax: Maximum radius of the light aperture

[0092] Rmin: Minimum radius of the light aperture

[0093] X: Optical axis

[0094] N: Total number of light-shielding structures

[0095] N': Equivalent number of light-blocking structures

[0096] EFL: Focal length of the imaging lens

[0097] t: Roundness tolerance value

[0098] tc: Roundness coefficient Detailed Implementation

[0099] This disclosure provides an imaging lens having an optical axis and including an imaging lens group and a lens holding element. The optical axis passes through the imaging lens group, and the lens holding element houses the imaging lens group, aligning the imaging lens group with the optical axis. The lens holding element includes multiple light-shielding structures disposed on the object side of the imaging lens group and forming a light-passing aperture around the optical axis. Each light-shielding structure is linear and has two endpoints and a midpoint, with each midpoint closer to the optical axis than its two endpoints. A maximum radius Rmax of the light-passing aperture can be defined near each endpoint of each light-shielding structure, and a minimum radius Rmin of the light-passing aperture can be defined near the midpoint of each light-shielding structure closest to the optical axis. The total number of light-shielding structures is N, satisfying the following condition: 3 ≤ N < 40. The light-shielding aperture formed by the configuration of the light-shielding structures can effectively control the generation of ghosting, thereby improving image quality.

[0100] In detail, the adjacent endpoints of each light-shielding structure are interconnected, causing the light-shielding structure to surround the optical axis and form a polygonal light-passing aperture. When the light-passing aperture is polygonal, the appearance and intensity of ghosting in the image of incident light at a specific angle can be controlled. In addition, the maximum radius Rmax of the light-passing aperture is the radius of its circumcircle, and the minimum radius Rmin of the light-passing aperture is the radius of its incircle.

[0101] The lens holding element and the light-shielding structure can be integrally molded. By forming the lens holding element and the light-shielding structure simultaneously, production costs can be reduced.

[0102] There is no contact between the light-shielding structure and the imaging lens group. Therefore, proper spatial arrangement can optimize the light-shielding efficiency of the structure.

[0103] When the total number of light-shielding structures is between 7 and 22, the aperture has a roundness tolerance value t and a roundness coefficient tc, which satisfy the following conditions: 0.01 < t < 0.08; and 1.02% < tc < 9.90%, where t = Rmax - Rmin, and tc = t / Rmax × 100%. This allows control over the optimal range of technical characteristics of the aperture under different shapes to meet light-shielding requirements. Additionally, it satisfies the following condition: 1.12% < tc < 8.05%. This provides a roundness coefficient range with high ghosting controllability.

[0104] In detail, the light aperture can be N-sided. Further, the light aperture can be a regular polygon. Please refer to Table 1 below, which lists the number of sides of the regular polygons and their corresponding roundness tolerance value t and roundness coefficient tc of the light aperture.

[0105]

[0106] Furthermore, the lens holding element may also include multiple radius structures, each connecting to the endpoints of adjacent light-shielding structures. This helps to ensure that the minimum radius Rmin of the light-transmitting aperture does not decrease as the total number of light-shielding structures decreases, thereby improving the design margin of the light-transmitting aperture. Specifically, the radius of the radius structure is the maximum radius Rmax.

[0107] Each light-shielding structure has an included angle θ between its two endpoints and the line connecting them to the optical axis. The minimum radius Rmin of the light-transmitting aperture can be defined as the equivalent number of light-shielding structures, N'. The light-transmitting aperture has a roundness tolerance value t and a roundness coefficient tc, which satisfy the following conditions: N' = 360° / θ; 7 < N' < 22; 0.01 < t < 0.08; and 1.02% < tc < 9.90%, where N' ≠ N, t = Rmax - Rmin, and tc = t / Rmax × 100%. This allows control over the optimal range of technical characteristics of the light-transmitting aperture under different shapes to meet light-shielding requirements. Additionally, it satisfies the following condition: 1.12% < tc < 8.05%.

[0108] Each light-shielding structure can be formed by connecting and intersecting a first tapered surface and a second tapered surface. By employing an optimized mold design, the difficulty of releasing the lens holding element can be reduced, improving yield. Furthermore, the first tapered surface faces the object side of the imaging lens and tapers towards the image side, while the second tapered surface faces the image side of the imaging lens and tapers towards the object side. This optimized tapered surface design ensures that the light-shielding structure is positioned in the ideal light-shielding location.

[0109] Each light-shielding structure overlaps with the imaging lens group along the direction parallel to the optical axis. By properly arranging the space, the light-shielding efficiency of the light-shielding structure can be optimized.

[0110] The light-passing aperture can serve as an aperture for the imaging lens, controlling the amount of light entering the lens. This allows it to be positioned to meet the light-shielding requirements of a front-aperture imaging lens, thereby improving optical design margins.

[0111] The focal length of the imaging lens is EFL, which satisfies the following condition: 1.0 < EFL / (2×Rmin) < 3.0. This ensures sufficient light enters to maintain image quality. Additionally, when the aperture is the same as the imaging lens's aperture, the aperture value Fno (F-number) of the imaging lens is equal to EFL / (2×Rmin).

[0112] The lens retaining element may have at least two injection marks. This allows for the adaptation to more complex lens retaining elements and increases mold design margin. Furthermore, the lens retaining element may have at least three injection marks.

[0113] This disclosure provides a camera module that includes an imaging lens as described above. This provides good image quality.

[0114] This disclosure provides an electronic device comprising a camera module as described above and an electronic image sensor, wherein the electronic image sensor is disposed on an imaging surface of the camera module. This improves image quality. Preferably, the aforementioned electronic device may further include a control unit, a display unit, a storage unit, a temporary storage unit, or a combination thereof.

[0115] Based on the above description, specific implementation methods and examples are presented below, along with detailed descriptions in conjunction with the accompanying drawings.

[0116] <First Implementation>

[0117] Please refer to Figures 1A to 1F ,in Figure 1A This is a perspective view illustrating the imaging lens 100 in the first embodiment according to the first embodiment of the present disclosure. Figure 1B Drawing according to Figure 1A Exploded view of the medium imaging lens 100. Figure 1C Drawing according to Figure 1A Another exploded view of the medium imaging lens 100. Figure 1D Drawing according to Figure 1A Side view of the imaging lens 100. Figure 1E Drawing according to Figure 1A A schematic diagram of the image side of the imaging lens 100. Figure 1F for Figure 1E A sectional view along section line 1F-1F. (By...) Figures 1A to 1F As can be seen, the imaging lens 100 has an optical axis X, which includes an imaging lens group (not otherwise labeled) and a lens holding element 120. The optical axis X passes through the imaging lens group, and the lens holding element 120 houses the imaging lens group, so that the imaging lens group is aligned with the optical axis X. In detail, in the first embodiment of the first implementation, the imaging lens group includes five optical lenses 1101, and is disposed in the lens holding element 120 along the optical axis X with other optical elements; specifically, from the object side to the image side of the imaging lens 100, the lens holding element 120 houses two optical lenses 1101, a light shield 1102, an optical lens 1101, a light shield 1102, an optical lens 1101, a lens spacing maintaining element 1103, a light shield 1102, an optical lens 1101, and a retaining ring 1104.

[0118] Reference Figure 1G as well as Figure 1H ,in Figure 1G for Figure 1E The illustrated sectional view of the lens holding element 120 along section line 1F-1F. Figure 1H Drawing according to Figure 1BA schematic diagram of the light-shielding structure 121 on the lens holding element 120. Figure 1B , Figure 1C as well as Figure 1G It is understood that the lens holding element 120 includes multiple light-shielding structures 121. The light-shielding structures 121 are disposed on the object side of the imaging lens group and form a light-passing hole 1201 around the optical axis X. The lens holding element 120 and the light-shielding structures 121 are integrally formed. In the first embodiment of the first implementation, the light-passing hole 1201 is an aperture of the imaging lens 100, used to control the amount of light entering the imaging lens 100. Each light-shielding structure 121 can be formed by connecting and intersecting a first tapered surface 122 and a second tapered surface 123. The first tapered surface 122 faces the object side of the imaging lens 100 and tapers towards the image side of the imaging lens 100. The second tapered surface 123 faces the image side of the imaging lens 100 and tapers towards the object side of the imaging lens 100. That is, the first tapered surface 122 and the second tapered surface 123 taper from the object side to the image side and from the image side to the object side of the imaging lens 100 towards the optical axis X, respectively, forming a pointed light-shielding structure 121.

[0119] Depend on Figure 1H It can be seen that each light-shielding structure 121 is linear and has two endpoints 1211 and a midpoint 1212, with each midpoint 1212 being closer to the optical axis X than each endpoint 1211. Specifically, the adjacent endpoints 1211 of each light-shielding structure 121 are connected to each other, so that the light-shielding structure 121 surrounds the optical axis X and forms a polygonal light-transmitting hole 1201. In the first embodiment of the first implementation, the total number of light-shielding structures 121 is N and N is 16, that is, the light-transmitting hole 1201 is a 16-sided polygon and is a regular polygon.

[0120] Reference Figure 1F It can be seen that there is no contact between the light-shielding structure 121 and the optical lens 1101 on the object side; that is, there is no contact between the light-shielding structure 121 and the imaging lens group. In addition, each light-shielding structure 121 overlaps with the imaging lens group along the direction parallel to the optical axis X.

[0121] In addition Figure 1H It can be seen that a maximum radius Rmax of the light-transmitting aperture 1201 can be defined near each endpoint 1211 of each light-blocking structure 121, and a minimum radius Rmin of the light-transmitting aperture 1201 can be defined near the midpoint 1212 closest to the optical axis X of each light-blocking structure 121. An angle θ is formed between the two endpoints 1211 of each light-blocking structure 121 and the line connecting them to the optical axis X. The focal length of the imaging lens 100 is EFL. The light-transmitting aperture 1201 has a roundness tolerance value t and a roundness coefficient tc, where t = Rmax - Rmin, and tc = t / Rmax × 100%. The aforementioned parameters satisfy the values ​​in Table 1A below.

[0122]

[0123] Please refer to Figures 1I to 1L ,in Figure 1I This is a perspective view illustrating the imaging lens 100 in the second embodiment according to the first embodiment of this disclosure. Figure 1J Drawing according to Figure 1I Side view of the imaging lens 100. Figure 1K Drawing according to Figure 1I A schematic diagram of the image side of the imaging lens 100. Figure 1L for Figure 1K A sectional view along section line 1L-1L. (By...) Figures 1I to 1L As can be seen, the imaging lens 100 of the second embodiment of the first embodiment has an optical axis X, and includes an imaging lens group (not otherwise labeled) and a lens holding element 120. The following only describes the differences between the imaging lens 100 of the second embodiment of the first embodiment and the imaging lens 100 of the first embodiment; the remaining identical component structures and technical features will not be repeated.

[0124] Depend on Figure 1I It is known that the lens holding element 120 has at least two injection marks 124; specifically, in the imaging lens 100 of the second embodiment of the first embodiment, the number of injection marks 124 is three, and they are located on the outside of the lens holding element 120.

[0125] Reference Figure 1M as well as Figure 1N ,in Figure 1M for Figure 1K A cross-sectional view of the lens holding element 120 along section line 1L-1L is shown. Figure 1N Drawing according to Figure 1I Schematic diagram of the light-shielding structures 121a and 121b on the lens holding element 120. Figure 1I , Figure 1M as well as Figure 1N It is understood that the lens holding element 120 includes multiple light-shielding structures 121a and 121b. The light-shielding structures 121a and 121b are disposed on the object side of the imaging lens group and form a light-passing hole 1201 around the optical axis X. The lens holding element 120 and the light-shielding structures 121a and 121b are integrally formed. In the second embodiment of the first implementation, the light-passing hole 1201 is an aperture of the imaging lens 100, used to control the amount of light entering the imaging lens 100. Figure 1L It can be seen that there is no contact between the light-shielding structures 121a and 121b and the optical lens 1101 on the object side; that is, there is no contact between the light-shielding structures 121a and 121b and the imaging lens group. In addition, each light-shielding structure 121 overlaps with the imaging lens group along the direction parallel to the optical axis X.

[0126] Depend on Figure 1NIt is understood that the light-shielding structures 121a and 121b in the second embodiment of the first implementation method are of two types. Each light-shielding structure 121a and 121b is linear and has two endpoints 1211a and 1211b and a midpoint 1212a and 1212b, respectively. Each midpoint 1212a and 1212b is closer to the optical axis X than each endpoint 1211a and 1211b. Specifically, the adjacent endpoints 1211a and 1211b of each light-shielding structure 121a and 121b are connected to each other, so that the light-shielding structures 121a and 121b surround the optical axis X and form a polygonal light-transmitting hole 1201. The number of light-shielding structures 121a is 5, and the number of light-shielding structures 121b is 24; that is, the total number of light-shielding structures 121a and 121b is N, and N is 29.

[0127] In the second embodiment of the first implementation, the maximum radius of the light-transmitting aperture 1201 is Rmax, the minimum radius of the light-transmitting aperture 1201 is Rmin, the two endpoints 1211a of each light-blocking structure 121a have an included angle θa with the line connecting the optical axis X, the two endpoints 1211b of each light-blocking structure 121b have an included angle θb with the line connecting the optical axis X, the focal length of the imaging lens 100 is EFL, and the light-transmitting aperture 1201 has a roundness tolerance value t and a roundness coefficient tc, where t = Rmax - Rmin, tc = t / Rmax × 100%. The aforementioned parameters satisfy the values ​​in Table 1B below.

[0128]

[0129] Please refer to the following: Figure 10 The diagram illustrates the light-shielding structures 121a and 121b on the lens holding element of the imaging lens in the third embodiment of the first embodiment according to the present disclosure. The following description only details the differences between the imaging lens of the third embodiment of the first embodiment and the imaging lens 100 of the first embodiment; other identical component structures and technical features will not be repeated. Figure 10It is understood that the lens holding element includes multiple light-shielding structures 121a and 121b, which form a light-transmitting hole 1201 around the optical axis. The third embodiment of the first embodiment has two types of light-shielding structures 121a and 121b. Each light-shielding structure 121a and 121b is linear and has two endpoints 1211a and 1211b and a midpoint 1212a and 1212b, with each midpoint 1212a and 1212b closer to the optical axis than each endpoint 1211a and 1211b. Specifically, adjacent endpoints 1211a and 1211b of each light-shielding structure 121a and 121b are interconnected, so that the light-shielding structures 121a and 121b surround the optical axis and form a polygonal light-transmitting hole 1201. The number of light-blocking structures 121a is 3, and the number of light-blocking structures 121b is 28; that is, the total number of light-blocking structures 121a and 121b is N and N is 31.

[0130] In the third embodiment of the first implementation, the maximum radius of the light-transmitting aperture 1201 is Rmax, the minimum radius of the light-transmitting aperture 1201 is Rmin, the two endpoints 1211a of each light-blocking structure 121a have an included angle θa with the line connecting the optical axis X, the two endpoints 1211b of each light-blocking structure 121b have an included angle θb with the line connecting the optical axis X, the focal length of the imaging lens 100 is EFL, and the light-transmitting aperture 1201 has a roundness tolerance value t and a roundness coefficient tc, where t = Rmax - Rmin, tc = t / Rmax × 100%. The aforementioned parameters satisfy the values ​​in Table 1C below.

[0131]

[0132] <Second Implementation>

[0133] Please refer to Figures 2A to 2F ,in Figure 2A This is a perspective view illustrating the imaging lens 200 in the first embodiment of the second embodiment according to the present disclosure. Figure 2B Drawing according to Figure 2A Exploded view of the medium imaging lens 200. Figure 2C Drawing according to Figure 2A Another exploded view of the 200mm imaging lens. Figure 2D Drawing according to Figure 2A Side view of the medium imaging lens 200. Figure 2E Drawing according to Figure 2A A schematic diagram of the image side of the medium imaging lens 200. Figure 2F for Figure 2E A sectional view along section line 2F-2F. (By...) Figures 2A to 2FAs can be seen, the imaging lens 200 has an optical axis X, which includes an imaging lens group (not otherwise labeled) and a lens holding element 220. The optical axis X passes through the imaging lens group, and the lens holding element 220 houses the imaging lens group, aligning the imaging lens group with the optical axis X. Specifically, in the first embodiment of the second implementation, the imaging lens group includes five optical lenses 2101, which, along with other optical elements, are disposed in the lens holding element 220 along the optical axis X; specifically, from the object side to the image side of the imaging lens 200, the lens holding element 220 houses a light-shielding plate 2102, an optical lens 2101, a light-shielding plate 2102, an optical lens 2101, a lens spacing maintaining element 2103, an optical lens 2101, a light-shielding plate 2102, an optical lens 2101, and a retaining ring 2104.

[0134] Reference Figure 2G as well as Figure 2H ,in Figure 2G for Figure 2E The illustrated sectional view of the lens holding element 220 along section line 2F-2F. Figure 2H Drawing according to Figure 2B A schematic diagram of the light-shielding structure 221 on the lens holding element 220. Figure 2B , Figure 2C as well as Figure 2G It is known that the lens holding element 220 includes multiple light-shielding structures 221. The light-shielding structures 221 are disposed on the object side of the imaging lens group and form a light-passing hole 2201 around the optical axis X. The lens holding element 220 and the light-shielding structures 221 are integrally formed. In the first embodiment of the second implementation, the light-passing hole 2201 is an aperture of the imaging lens 200, used to control the amount of light entering the imaging lens 200. Each light-shielding structure 221 can be formed by connecting and intersecting a first tapered surface 222 and a second tapered surface 223. The first tapered surface 222 faces the object side of the imaging lens 200 and tapers towards the image side of the imaging lens 200. The second tapered surface 223 faces the image side of the imaging lens 200 and tapers towards the object side of the imaging lens 200. That is, the first tapered surface 222 and the second tapered surface 223 taper from the object side to the image side and from the image side to the object side of the imaging lens 200 towards the optical axis X, respectively, forming a pointed light-shielding structure 221.

[0135] Depend on Figure 2H It can be seen that each light-shielding structure 221 is straight and has two endpoints 2211 and a midpoint 2212, with each midpoint 2212 being closer to the optical axis X than each endpoint 2211. Specifically, the adjacent endpoints 2211 of each light-shielding structure 221 are connected to each other, so that the light-shielding structure 221 surrounds the optical axis X and forms a light-transmitting hole 2201 with a polygonal appearance; in the first embodiment of the second implementation, the total number of light-shielding structures 221 is N and N is 24, that is, the light-transmitting hole 2201 is a 24-sided polygon and is a regular polygon.

[0136] Reference Figure 2F It can be seen that there is no contact between the light-shielding structure 221 and the optical lens 2101 on the object side; that is, there is no contact between the light-shielding structure 221 and the imaging lens group. In addition, each light-shielding structure 221 overlaps with the imaging lens group along the direction parallel to the optical axis X.

[0137] In addition Figure 2H It can be seen that a maximum radius Rmax of the light-transmitting aperture 2201 can be defined near each endpoint 2211 of each light-blocking structure 221, and a minimum radius Rmin of the light-transmitting aperture 2201 can be defined near the midpoint 2212 closest to the optical axis X of each light-blocking structure 221. An angle θ is formed between the two endpoints 2211 of each light-blocking structure 221 and the line connecting them to the optical axis X. The focal length of the imaging lens 200 is EFL. The light-transmitting aperture 2201 has a roundness tolerance value t and a roundness coefficient tc, where t = Rmax - Rmin, and tc = t / Rmax × 100%. The aforementioned parameters satisfy the values ​​in Table 2A below.

[0138]

[0139] Please refer to Figures 2I to 2L ,in Figure 2I This is a perspective view illustrating the imaging lens 200 in the second embodiment according to the second embodiment of the present disclosure. Figure 2J Drawing according to Figure 2I Side view of the medium imaging lens 200. Figure 2K Drawing according to Figure 2I A schematic diagram of the image side of the medium imaging lens 200. Figure 2L for Figure 2K A sectional view along section line 2L-2L. (By...) Figures 2I to 2L As can be seen, the imaging lens 200 of the second embodiment of the second embodiment has an optical axis X, and includes an imaging lens group (not otherwise labeled) and a lens holding element 220. The following only describes the differences between the imaging lens 200 of the second embodiment of the second embodiment and the imaging lens 200 of the first embodiment of the second embodiment; the other identical component structures and technical features will not be described again.

[0140] Reference Figure 2M as well as Figure 2N ,in Figure 2M for Figure 2K The illustrated sectional view of the lens holding element 220 along section line 2L-2L. Figure 2N Drawing according to Figure 2I A schematic diagram of the light-shielding structure 221 and the radius structure 225 on the lens holding element 220. Figure 2I , Figure 2M as well as Figure 2NIt is understood that the lens holding element 220 includes multiple light-shielding structures 221 and multiple radius structures 225. The light-shielding structures 221 and radius structures 225 are all disposed on the object side of the imaging lens group and are alternately connected to each other, forming a light-passing aperture 2201 around the optical axis X. The lens holding element 220 is integrally formed with the light-shielding structures 221 and the radius structures 225. In the second embodiment of the second implementation, the light-passing aperture 2201 is an aperture of the imaging lens 200, used to control the amount of light entering the imaging lens 200. The total number of light-shielding structures 221 is N, and N is 7. The number of radius structures 225 is 7.

[0141] In detail, each light-shielding structure 221 is linear and has two endpoints 2211 and a midpoint 2212, with the midpoint 2212 being closer to the optical axis X than the endpoints 2211. Each radius structure 225 connects to the endpoints 2211 of adjacent light-shielding structures 221. It must be noted that the radius structure 225 is arc-shaped, and the maximum radius Rmax of the light-transmitting aperture 2201 can be defined near each endpoint 2211 of each light-shielding structure 221. The radius of the radius structure 225 is the maximum radius Rmax of the light-transmitting aperture 2201.

[0142] Depend on Figure 2N It can be seen that the maximum radius of the light-transmitting aperture 2201 is Rmax, the minimum radius of the light-transmitting aperture 2201 is Rmin, and there is an angle θ between the two endpoints 2211 of each light-blocking structure 221 and the line connecting them to the optical axis X. The focal length of the imaging lens 200 is EFL. The light-transmitting aperture 2201 has a roundness tolerance value t and a roundness coefficient tc, where t = Rmax - Rmin, and tc = t / Rmax × 100%. The aforementioned parameters satisfy the values ​​in Table 2B below.

[0143]

[0144] In addition, when the lens holding element 220 is provided with a radius structure 225, the minimum radius Rmin of the light-transmitting hole 2201 can define the equivalent number of light-blocking structures 221 as N', where N' = 360° / θ, N' ≠ N; in the second embodiment of the second implementation, N' = 19.46.

[0145] Please refer to the following: Figure 2O This diagram illustrates a light-shielding structure 221 on the lens holding element of the imaging lens in the third embodiment of the second embodiment according to the present disclosure. The following description only details the differences between the imaging lens of the third embodiment of the second embodiment and the imaging lens 200 of the first embodiment of the second embodiment; other identical component structures and technical features will not be repeated. Figure 2OIt is understood that the lens holding element includes multiple light-shielding structures 221. Each light-shielding structure 221 is linear and has two endpoints 2211 and a midpoint 2212. Each midpoint 2212 is closer to the optical axis than each endpoint 2211. Specifically, the adjacent endpoints 2211 of each light-shielding structure 221 are connected to each other, so that the light-shielding structure 221 surrounds the optical axis and forms a light-transmitting hole 2201 with a polygonal appearance. In the third embodiment of the second embodiment, the total number of light-shielding structures 221 is N and N is 34, that is, the light-transmitting hole 2201 is a 34-sided polygon and a regular polygon.

[0146] In the third embodiment of the second implementation, the maximum radius of the light-transmitting aperture 2201 is Rmax, the minimum radius of the light-transmitting aperture 2201 is Rmin, and there is an included angle θ between the two endpoints 2211 of each light-blocking structure 221 and the line connecting them to the optical axis. The focal length of the imaging lens 200 is EFL. The light-transmitting aperture 2201 has a roundness tolerance value t and a roundness coefficient tc, where t = Rmax - Rmin, and tc = t / Rmax × 100%. The aforementioned parameters satisfy the values ​​in Table 2C below.

[0147]

[0148] <Third Implementation Method>

[0149] Please refer to Figures 3A to 3F ,in Figure 3A This is a perspective view illustrating the imaging lens 300 in the first embodiment of the third embodiment according to the present disclosure. Figure 3B Drawing according to Figure 3A Exploded view of the 300mm medium imaging lens. Figure 3C Drawing according to Figure 3A Another exploded view of the 300mm imaging lens. Figure 3D Drawing according to Figure 3A Side view of the 300-inch imaging lens. Figure 3E Drawing according to Figure 3A A schematic diagram of the image side of the 300-inch imaging lens. Figure 3F for Figure 3E A sectional view along section line 3F-3F. (By...) Figures 3A to 3FAs can be seen, the imaging lens 300 has an optical axis X, which includes an imaging lens group (not otherwise labeled) and a lens holding element 320. The optical axis X passes through the imaging lens group, and the lens holding element 320 accommodates the imaging lens group, so that the imaging lens group is aligned with the optical axis X. In detail, in the first embodiment of the third embodiment, the imaging lens group includes five optical lenses 3101, and is disposed in the lens holding element 320 along the optical axis X with other optical elements; specifically, from the object side to the image side of the imaging lens 300, the lens holding element 320 accommodates two optical lenses 3101, a light shield 3102, an optical lens 3101, a light shield 3102, an optical lens 3101, a lens spacing maintaining element 3103, a light shield 3102, an optical lens 3101, and a retaining ring 3104.

[0150] Reference Figure 3G as well as Figure 3H ,in Figure 3G for Figure 3E The illustrated sectional view of the lens holding element 320 along section line 3F-3F. Figure 3H Drawing according to Figure 3B A schematic diagram of the light-shielding structure 321 on the lens holding element 320. Figure 3B , Figure 3C as well as Figure 3G It is known that the lens holding element 320 includes multiple light-shielding structures 321. The light-shielding structures 321 are disposed on the object side of the imaging lens group and form a light-passing hole 3201 around the optical axis X. The lens holding element 320 and the light-shielding structures 321 are integrally formed. In the first embodiment of the third implementation, the light-passing hole 3201 is an aperture of the imaging lens 300, used to control the amount of light entering the imaging lens 300. Each light-shielding structure 321 can be formed by connecting and intersecting a first tapered surface 322 and a second tapered surface 323. The first tapered surface 322 faces the object side of the imaging lens 300 and tapers towards the image side of the imaging lens 300. The second tapered surface 323 faces the image side of the imaging lens 300 and tapers towards the object side of the imaging lens 300. That is, the first tapered surface 322 and the second tapered surface 323 taper from the object side to the image side and from the image side to the object side of the imaging lens 300 towards the optical axis X, respectively, forming a pointed light-shielding structure 321.

[0151] Depend on Figure 3H It can be seen that each light-shielding structure 321 is straight and has two endpoints 3211 and a midpoint 3212, with each midpoint 3212 being closer to the optical axis X than each endpoint 3211. Specifically, the adjacent endpoints 3211 of each light-shielding structure 321 are connected to each other, so that the light-shielding structure 321 surrounds the optical axis X and forms a light-transmitting hole 3201 with a polygonal appearance; in the first embodiment of the third embodiment, the total number of light-shielding structures 321 is N and N is 12, that is, the light-transmitting hole 3201 is a dodecagon and is a regular polygon.

[0152] Reference Figure 3F It can be seen that there is no contact between the light-shielding structure 321 and the optical lens 3101 on the object side; that is, there is no contact between the light-shielding structure 321 and the imaging lens group. In addition, each light-shielding structure 321 overlaps with the imaging lens group along the direction parallel to the optical axis X.

[0153] In addition Figure 3H It can be seen that a maximum radius Rmax of the light-transmitting aperture 3201 can be defined near each endpoint 3211 of each light-blocking structure 321, and a minimum radius Rmin of the light-transmitting aperture 3201 can be defined near the midpoint 3212 closest to the optical axis X of each light-blocking structure 321. An angle θ exists between the two endpoints 3211 of each light-blocking structure 321 and the line connecting them to the optical axis X. The focal length of the imaging lens 300 is EFL. The light-transmitting aperture 3201 has a roundness tolerance value t and a roundness coefficient tc, where t = Rmax - Rmin, and tc = t / Rmax × 100%. The aforementioned parameters satisfy the values ​​in Table 3A below.

[0154]

[0155] Please refer to Figures 3I to 3L ,in Figure 3I This is a perspective view illustrating the imaging lens 300 in the second embodiment of the third embodiment according to the present disclosure. Figure 3J Drawing according to Figure 3I Side view of the 300-inch imaging lens. Figure 3K Drawing according to Figure 3I A schematic diagram of the image side of the 300-inch imaging lens. Figure 3L for Figure 3K A sectional view along section line 3L-3L. (By...) Figures 3I to 3L As can be seen, the imaging lens 300 of the second embodiment of the third embodiment has an optical axis X, and includes an imaging lens group (not otherwise labeled) and a lens holding element 320. The following only describes the differences between the imaging lens 300 of the second embodiment of the third embodiment and the imaging lens 300 of the first embodiment of the third embodiment; the remaining identical component structures and technical features will not be repeated.

[0156] Reference Figure 3M as well as Figure 3N ,in Figure 3M for Figure 3K A cross-sectional view of the lens holding element 320 along section line 3L-3L is shown. Figure 3N Drawing according to Figure 3I A schematic diagram of the light-shielding structure 321 and the radius structure 325 on the lens holding element 320. Figure 3I , Figure 3M as well as Figure 3NIt is understood that the lens holding element 320 includes multiple light-shielding structures 321 and multiple radius structures 325. The light-shielding structures 321 and radius structures 325 are all disposed on the object side of the imaging lens group and are alternately connected to each other, forming a light-passing aperture 3201 around the optical axis X. The lens holding element 320 is integrally formed with the light-shielding structures 321 and the radius structures 325. In the second embodiment of the third embodiment, the light-passing aperture 3201 is an aperture of the imaging lens 300, used to control the amount of light entering the imaging lens 300, and the total number of light-shielding structures 321 is 5, and the total number of radius structures 325 is 5.

[0157] In detail, each light-shielding structure 321 is linear and has two endpoints 3211 and a midpoint 3212, with the midpoint 3212 being closer to the optical axis X than the endpoints 3211. Each radius structure 325 connects to the endpoints 3211 of adjacent light-shielding structures 321. It must be noted that the radius structure 325 is arc-shaped, and the maximum radius Rmax of the light-transmitting aperture 3201 can be defined near each endpoint 3211 of each light-shielding structure 321. The radius of the radius structure 325 is the maximum radius Rmax of the light-transmitting aperture 3201.

[0158] Depend on Figure 3N It can be seen that the maximum radius of the light-transmitting aperture 3201 is Rmax, the minimum radius of the light-transmitting aperture 3201 is Rmin, and there is an angle θ between the two endpoints 3211 of each light-blocking structure 321 and the line connecting them to the optical axis X. The focal length of the imaging lens 300 is EFL. The light-transmitting aperture 3201 has a roundness tolerance value t and a roundness coefficient tc, where t = Rmax - Rmin, and tc = t / Rmax × 100%. The aforementioned parameters satisfy the values ​​in Table 3B below.

[0159]

[0160] In addition, when the lens holding element 320 is provided with a radius structure 325, the minimum radius Rmin of the light-transmitting hole 3201 can define the equivalent number of light-blocking structures 321 as N', where N' = 360° / θ, N' ≠ N; in the second embodiment of the third implementation, N' = 17.7.

[0161] Please refer to the following: Figure 3O This diagram illustrates the light-shielding structure 321 and radius structure 325 on the lens holding element of the imaging lens according to the third embodiment of this disclosure. The following description only details the differences between the imaging lens of the third embodiment and the imaging lens 300 of the first embodiment; other identical component structures and technical features will not be repeated. Figure 3OIt is understood that the lens holding element includes multiple light-shielding structures 321 and multiple radius structures 325. The light-shielding structures 321 and radius structures 325 are all disposed on the object side of the imaging lens group and are alternately connected to each other, forming a light-passing aperture around the optical axis. The lens holding element is integrally formed with the light-shielding structures 321 and the radius structures 325. In the third embodiment of the third implementation, the total number of light-shielding structures 321 is 3, and the number of radius structures 325 is 3.

[0162] In detail, each light-shielding structure 321 is linear and has two endpoints 3211 and a midpoint 3212, with the midpoint 3212 being closer to the optical axis than the endpoints 3211. Each radius structure 325 connects to the endpoints 3211 of adjacent light-shielding structures 321. It must be noted that the radius structure 325 is arc-shaped, and the maximum radius Rmax of the light-transmitting aperture can be defined near each endpoint 3211 of each light-shielding structure 321. The radius of the radius structure 325 is the maximum radius Rmax of the light-transmitting aperture.

[0163] The maximum radius of the light-transmitting aperture is Rmax, and the minimum radius is Rmin. The two endpoints 3211 of each light-blocking structure 321 form an angle θ with the line connecting them to the optical axis X. The focal length of the imaging lens 300 is EFL. The light-transmitting aperture 3201 has a roundness tolerance value t and a roundness coefficient tc, where t = Rmax - Rmin, and tc = t / Rmax × 100%. The aforementioned parameters satisfy the values ​​in Table 3C below.

[0164]

[0165] In addition, when the lens holding element is provided with a radius structure 325, the minimum radius Rmin of the light-transmitting hole can define the equivalent number of light-blocking structures 321 as N', where N' = 360° / θ, N' ≠ N; in the third embodiment of the third implementation, N' = 7.8.

[0166] <Fourth Implementation>

[0167] Figure 4A A schematic diagram of an electronic device 10 according to one embodiment of the fourth description of this disclosure is shown. Figure 4B Drawing according to Figure 4A A block diagram of the electronic device 10. Figure 4A and Figure 4BAs can be seen, the electronic device 10 is a smartphone, and includes a camera module 11, an electronic image sensor 12, and a user interface 13. The electronic image sensor 12 is disposed on the imaging surface of the camera module 11, and the camera module 11 includes an imaging lens (not shown in the figure). The camera module 11 is disposed in the area on the side of the user interface 13, which may be a touch screen or a display screen, and is not limited thereto. The imaging lens in the camera module 11 may be the imaging lens disclosed in any of the embodiments of the first to third embodiments described above, but the content of this disclosure is not limited thereto.

[0168] Furthermore, the user enters the shooting mode through the user interface 13 of the electronic device 10. At this time, the camera module 11 gathers the imaging light onto the electronic photosensitive element 12 and outputs the electronic signal of the image to the image signal processing element (ISP) 14.

[0169] Depending on the camera specifications of the electronic device 10, the electronic device 10 may further include an optical image stabilization component 15, which may be an OIS image stabilization feedback device. Furthermore, the electronic device 10 may also include at least one auxiliary optical element (not otherwise labeled) and at least one sensing element 16. In the fourth embodiment, the auxiliary optical element is a flash module 17 and a focus assist module 18. The flash module 17 can be used to compensate for color temperature, and the focus assist module 18 may be an infrared rangefinder, a laser focus module, etc. The sensing element 16 may have the function of sensing physical momentum and kinetic energy, such as an accelerometer, gyroscope, or Hall effect element, to sense the shaking and tremors caused by the user's hand or the external environment. This facilitates the performance of the autofocus function and optical image stabilization component 15 configured in the camera module 11 of the electronic device 10, resulting in good image quality. This helps the electronic device 10 according to the present disclosure to have multiple shooting modes, such as optimized Selfie, low-light HDR (High Dynamic Range) imaging, and high-resolution 4K video recording. In addition, the user can directly view the camera's shooting screen from the touch screen and manually operate the framing on the touch screen to achieve a WYSIWYG autofocus function.

[0170] In addition, the electronic device 10 may also include, but is not limited to, a display unit, a control unit, a storage unit, a temporary storage unit (RAM), a read-only storage unit (ROM), or a combination thereof.

[0171] Figure 4C Drawing according to Figure 4A A schematic diagram of a selfie scene in the embodiment. Figure 4D Drawing according to Figure 4A A schematic diagram of images captured in the embodiment. (By...) Figure 4A , Figure 4C and Figure 4D As can be seen, both the camera module 11 and the user interface 13 face the user. When taking a selfie or live streaming, the user can simultaneously view the captured image and operate the interface, and obtain a result after shooting. Figure 4D The images captured. Therefore, the camera module 11, when used with the content disclosed herein, can provide a better shooting experience.

[0172] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. An imaging lens, characterized in that, It has an optical axis and includes: An imaging lens group, through which the optical axis passes; and A lens holding element, housing the imaging lens group and aligning the imaging lens group with the optical axis, includes: Multiple light-blocking structures are disposed on one object side of the imaging lens group and form a light-passing hole around the optical axis; Each of the light-shielding structures is linear and has two endpoints and a midpoint. Each midpoint is closer to the optical axis than each of the two endpoints. A maximum radius Rmax of the light-transmitting hole can be defined near each endpoint of the light-shielding structure, and a minimum radius Rmin of the light-transmitting hole can be defined near the midpoint of the light-shielding structure that is closest to the optical axis. The total number of these light-shielding structures is N, which satisfies the following condition: 3 ≤ N < 40； The lens holding element further includes multiple radial structures, each of which is connected to one end of an adjacent light-shielding structure, and the center of each radial structure coincides with the center of the light-transmitting aperture. The light-blocking structure and the radius structure are alternately connected to form the light-transmitting hole, and the radius structure is arc-shaped.

2. The imaging lens as described in claim 1, characterized in that, The lens retaining element is integrally formed with these light-shielding structures.

3. The imaging lens as described in claim 2, characterized in that, These light-shielding structures are not in contact with the imaging lens group.

4. The imaging lens as described in claim 3, characterized in that, When the total number of these light-blocking structures is between 7 and 22, the light-transmitting aperture has a roundness tolerance value t and a roundness coefficient tc, which satisfy the following conditions: 0.01 < t < 0.08; and 1.02% < tc < 9.90%; Where t = Rmax - Rmin; and tc = t / Rmax × 100%.

5. The imaging lens as described in claim 4, characterized in that, The roundness coefficient of the aperture is tc, which satisfies the following condition: 1.12% < tc < 8.05%.

6. The imaging lens as described in claim 1, characterized in that, The two endpoints of each light-shielding structure have an included angle θ with the line connecting the optical axis.

7. The imaging lens as described in claim 6, characterized in that, The minimum radius Rmin of the light-transmitting aperture can define an equivalent quantity N' of these light-blocking structures. The light-transmitting aperture has a roundness tolerance value t and a roundness coefficient tc, which satisfy the following conditions: N' = 360° / θ; 7 < N' < 22； 0.01 < t < 0.08; and 1.02% < tc < 9.90%; Where N' ≠ N, t = Rmax - Rmin, tc = t / Rmax × 100%.

8. The imaging lens as described in claim 7, characterized in that, The roundness coefficient of the aperture is tc, which satisfies the following condition: 1.12% < tc < 8.05%.

9. The imaging lens as described in claim 3, characterized in that, Each of these light-shielding structures is formed by the intersection of a first tapered surface and a second tapered surface.

10. The imaging lens as described in claim 9, characterized in that, The first tapering surface faces the object side of the imaging lens and tapers toward the image side of the imaging lens.

11. The imaging lens as described in claim 10, characterized in that, The second tapering surface faces the image side of the imaging lens and tapers toward the object side of the imaging lens.

12. The imaging lens as described in claim 3, characterized in that, Each of the light-shielding structures overlaps with the imaging lens group along a direction parallel to the optical axis.

13. The imaging lens as described in claim 12, characterized in that, This light-passing aperture is an aperture of the imaging lens, used to control the amount of light entering the imaging lens.

14. The imaging lens as described in claim 13, characterized in that, The focal length of the imaging lens is EFL, and it satisfies the following conditions: 1.0 < EFL / (2×Rmin) < 3.

0.

15. The imaging lens as described in claim 3, characterized in that, The light-transmitting aperture is N-sided.

16. The imaging lens as described in claim 3, characterized in that, The light-transmitting aperture is a regular polygon.

17. The imaging lens as described in claim 3, characterized in that, The lens retaining element has at least two injection marks.

18. A camera module, characterized in that, Include: The imaging lens as described in claim 1.

19. An electronic device, characterized in that, Include: The camera module as claimed in claim 18; and An electronic image sensor is disposed on an imaging surface of the camera module.

Images