Imaging lens assembly, imaging lens module, camera module and electronic device

Abstract

An imaging lens assembly, an imaging lens module, a camera module and an electronic device are disclosed. The imaging lens assembly includes a lens element. The lens element has an optical axis and includes an optically effective region and a peripheral portion. The optical axis passes through the optically effective region, and the peripheral portion surrounds the optically effective region. The peripheral portion includes an object-side surface, an image-side surface, a peripheral surface, an annular mark structure and a circular arc portion. The object-side surface faces toward an object side, the image-side surface faces toward an image side, and the image-side surface corresponds to the object-side surface. The peripheral surface connects the object-side surface and the image-side surface. The annular mark structure is disposed on one of the object-side surface and the image-side surface, and the annular mark structure is an annular tip protrusion structure and surrounds the optical axis. The circular arc portion is disposed on the other of the object-side surface and the image-side surface, and the circular arc portion is an annular convex arc. By disposing the annular mark structure on only one surface of the lens element and disposing the circular arc portion on the other surface, the dimensional accuracy and the delamination yield of the lens element can be improved.

Description

Technical Field

[0001] The present disclosure relates to an imaging lens group, an imaging lens module, and a camera module, and particularly to a miniaturized imaging lens group, an imaging lens module, and a camera module applied to an electronic device. Background Art

[0002] In recent years, camera modules have developed rapidly, filling modern people's lives and being widely used in various fields, such as being mounted on portable electronic devices, head-mounted devices, vehicle tools, etc. Camera modules and electronic photosensitive elements have also developed vigorously. However, with the progress of technology, users' requirements for the quality of camera modules are getting higher and higher. Therefore, developing an imaging lens module that can improve the dimensional accuracy and release yield of lens elements has become an important and urgent problem in the industry. Summary of the Invention

[0003] The present disclosure provides an imaging lens group, an imaging lens module, a camera module, and an electronic device. By providing a circular marking structure only on one side of the lens element and an arc portion on the other side, unnecessary light reflection inside the lens element can be effectively reduced, and at the same time, the possibility of excessive reflection of unnecessary light can be avoided when circular marking structures are provided on both the object side and the image side of the lens element. Thereby, the dimensional accuracy and release yield of the lens element can be improved.

[0004] According to an embodiment of the present disclosure, an imaging lens group is provided, which has an optical axis and includes at least one lens element. The lens element includes an optical effective area and an outer peripheral portion. The optical axis passes through the optical effective area, and the outer peripheral portion surrounds the optical effective area. The outer peripheral portion includes an object side surface, an image side surface, an outer peripheral surface, a circular marking structure, and at least one arc portion. The object side surface faces an object side, the image side surface faces an image side, and the image side surface corresponds to the object side surface. The outer peripheral surface connects the object side surface and the image side surface. The circular marking structure is provided on one of the object side surface and the image side surface, and the circular marking structure is a circular tip convex structure and surrounds the optical axis. The arc portion is provided on the other of the object side surface and the image side surface, and the arc portion is a circular convex arc. The perpendicular distance from the circular marking structure to the optical axis is dm, the perpendicular distance from the arc portion to the optical axis is da, and the radius of curvature of the arc portion is Ra, which satisfy the following conditions: 0.82 < da / dm < 1.18; and 0.025 mm ≤ Ra ≤ 0.5 mm.

[0005] For the imaging lens group according to the above-described embodiment, the lens element can be made by injection molding and may further include at least one injection mark, and the injection mark is provided on the outer peripheral surface.

[0006] An imaging lens group according to the embodiment described in the previous paragraph, wherein the distance from the annular marking structure to the injection mark in a direction perpendicular to the optical axis is t, which satisfies the following condition: t ≤ 0.4 mm.

[0007] An imaging lens group according to the embodiment described in the previous paragraph, wherein the radius of curvature of the arc portion is Ra, which satisfies the following condition: 0.035 mm ≤ Ra ≤ 0.45 mm.

[0008] An imaging lens group according to the embodiment described in the previous paragraph, wherein the perpendicular distance from the annular marking structure to the optical axis is dm, and the maximum radius of the outer peripheral surface is ds, which satisfies the following condition: 0.7 < dm / ds < 1.0.

[0009] An imaging lens group according to the embodiment described in the previous paragraph, wherein the optically effective area may include an object-side optical surface and an image-side optical surface. The object-side optical surface faces the object side, and the image-side optical surface faces the image side, wherein at least one of the object-side optical surface and the image-side optical surface is an aspherical optical surface.

[0010] An imaging lens group according to the embodiment described in the previous paragraph, wherein the height of the protrusion of the annular marking structure is h, which satisfies the following condition: 0.0025 mm ≤ h ≤ 0.1 mm.

[0011] An imaging lens module is provided according to an embodiment of the present disclosure, including a lens barrel and an imaging lens group. The lens barrel has a plurality of inner surfaces and forms an internal space. The imaging lens group is disposed in the internal space of the lens barrel, has an optical axis and includes at least one lens element. The lens element includes an optically effective area and an outer peripheral portion. The optical axis passes through the optically effective area, and the outer peripheral portion surrounds the optically effective area. The outer peripheral portion includes an object side surface, an image side surface, an outer peripheral surface, an annular marking structure and at least one arc portion. The object side surface faces an object side, the image side surface faces an image side, and the image side surface corresponds to the object side surface. The outer peripheral surface connects the object side surface and the image side surface and is in physical contact with one of the inner surfaces of the lens barrel. The annular marking structure is only disposed on the image side surface, and the annular marking structure is an annular tip protrusion structure and surrounds the optical axis. The arc portion is disposed on the object side surface, and the arc portion is an annular convex arc. The perpendicular distance from the annular marking structure to the optical axis is dm, the perpendicular distance from the arc portion to the optical axis is da, and the radius of curvature of the arc portion is Ra, which satisfies the following conditions: 0.75 < da / dm < 1.25; and 0.025 mm ≤ Ra ≤ 0.5 mm.

[0012] An imaging lens module according to the embodiment described in the previous paragraph, wherein the object side surface of the lens element may include an axial alignment structure for abutting and centering with another adjacent lens element.

[0013] According to the imaging lens module of the embodiment described above, the image side of the lens element may include an axial alignment structure for abutting against and centering with another adjacent lens element.

[0014] According to the imaging lens module of the embodiment described above, the radius of curvature of the arc portion is Ra, which can satisfy the following condition: 0.035mm≤Ra≤0.45mm.

[0015] According to the imaging lens module of the embodiment described above, the vertical distance from the annular marker structure to the optical axis is dm, and the maximum radius of the outer circumference is ds, which can satisfy the following condition: 0.8 <dm / ds<1.0。

[0016] According to the imaging lens module of the embodiment described above, the length of the area in which the outer peripheral surface contacts one of the aforementioned inner surfaces along a direction parallel to the optical axis is L, which can satisfy the following condition: L < 0.1 mm.

[0017] According to the imaging lens module of the embodiment described above, the optically effective area may include an object-side optical surface and an image-side optical surface. The object-side optical surface faces the object side, and the image-side optical surface faces the image side, wherein at least one of the object-side optical surface and the image-side optical surface is an optical aspherical surface.

[0018] According to the imaging lens module of the embodiment described above, the vertical distance from the annular marker structure to the optical axis is dm, and the maximum radius of the image-side optical surface is di, which can satisfy the following condition: 0.3 <di / dm<0.8。

[0019] According to the imaging lens module of the embodiment described above, the protrusion height of the annular mark structure is h, which can satisfy the following condition: 0.0025mm≤h≤0.1mm.

[0020] According to one embodiment of the present disclosure, a camera module is provided, including an imaging lens module and an electronic photosensitive element as described in the foregoing embodiments, which are disposed on an imaging surface of the imaging lens module.

[0021] According to one embodiment of the present disclosure, an electronic device is provided, which includes the camera module of the aforementioned embodiment. Attached Figure Description

[0022] Figure 1A A perspective view of the imaging lens module according to the first embodiment of this disclosure is shown;

[0023] Figure 1B Drawing according to Figure 1A An exploded view of the imaging lens module in the first embodiment;

[0024] Figure 1C Drawing according to Figure 1A A partial cross-sectional view of the imaging lens module in the first embodiment;

[0025] Figure 1D A schematic diagram of the imaging lens module according to the first embodiment of this disclosure is shown;

[0026] Figure 1E Drawing according to Figure 1D A schematic diagram of the first lens element in the first embodiment;

[0027] Figure 1F Drawing according to Figure 1E A schematic diagram of the parameters of the first lens element in the first embodiment;

[0028] Figure 1G Drawing according to Figure 1A Another schematic diagram of the imaging lens module in the first embodiment;

[0029] Figure 1H Drawing according to Figure 1G A schematic diagram of the parameters of the second lens element in the first embodiment;

[0030] Figure 1I Drawing according to Figure 1A Another schematic diagram of the imaging lens module in the first embodiment;

[0031] Figure 1J Drawing according to Figure 1I A schematic diagram of the parameters of the third lens element in the first embodiment;

[0032] Figure 2A A schematic diagram of the imaging lens module according to the second embodiment of this disclosure is shown;

[0033] Figure 2B Drawing according to Figure 2A A schematic diagram of the parameters of the first lens element in the second embodiment;

[0034] Figure 2C Drawing according to Figure 2A Another schematic diagram of the imaging lens module in the second embodiment;

[0035] Figure 2D Drawing according to Figure 2C A schematic diagram of the parameters of the second lens element in the second embodiment;

[0036] Figure 2E Drawing according to Figure 2A Another schematic diagram of the imaging lens module in the second embodiment;

[0037] Figure 2F Drawing according to Figure 2E A schematic diagram of the parameters of the third lens element in the second embodiment;

[0038] Figure 3A A schematic diagram of an electronic device according to a third embodiment of this disclosure is shown;

[0039] Figure 3B Draw Figure 3A Another schematic diagram of the electronic device in the third embodiment;

[0040] Figure 3C Drawing according to Figure 3A A schematic diagram of an image captured by the ultra-wide-angle camera module in the third embodiment;

[0041] Figure 3D Drawing according to Figure 3A A schematic diagram of an image captured by the high-pixel camera module in the third embodiment;

[0042] Figure 3E Drawing according to Figure 3A A schematic diagram of an image captured by the telephoto camera module in the third embodiment;

[0043] Figure 4 A schematic diagram of an electronic device according to the fourth embodiment of this disclosure is shown;

[0044] Figure 5A A schematic diagram illustrating a vehicle tool according to the fifth embodiment of this disclosure;

[0045] Figure 5B Drawing according to Figure 5A Top view of the vehicle tool according to the fifth embodiment;

[0046] Figure 5C Drawing according to Figure 5B A partially enlarged schematic diagram of the vehicle tool in the fifth embodiment; and

[0047] Figure 5D Drawing according to Figure 5A Another schematic diagram of the vehicle tool of the fifth embodiment.

[0048] [Symbol Explanation]

[0049] 10,20: Electronic devices

[0050] 11: User Interface

[0051] 12,21: Ultra-wide-angle camera module

[0052] 13,23: High-resolution camera module

[0053] 14,24: Telephoto camera module

[0054] 22: Wide-angle camera module

[0055] 25: TOF Module

[0056] 26: Flash module

[0057] 30: Vehicles and Tools

[0058] 31: Camera Module

[0059] 100, 200: Imaging lens module

[0060] 110, 210: Lens tube

[0061] 111,211: Inner surface

[0062] 120, 220: First lens element

[0063] 121,131,141,221,231,241: Effective optical region

[0064] 1211,1311,1411,2211,2311,2411: Object-side optical surfaces

[0065] 1212, 1312, 1412, 2212, 2312, 2412: Image-side optical surfaces

[0066] 122,222,232,242: Peripheral part

[0067] 1221, 1321, 1421: Side view of the object

[0068] 1222, 1322, 1422: Side view

[0069] 1223,1323,1423,2223,2323,2423: Outer peripheral surface

[0070] 1224,1324,1424,2224,2324,2424: Ring-shaped marking structure

[0071] 1225,1226,1325,1326,1425,1426,2225,2226,2325,2326,2425,2426: Arc portion

[0072] 123,133,143,223,233,243: Injection marks

[0073] 130, 230: Second lens element

[0074] 140, 240: Third lens element

[0075] 150, 270: Light-shielding elements

[0076] 160, 280: Stop ring

[0077] 2227, 2327, 2427: Inclined plane

[0078] 2228, 2328, 2428: Flat surface

[0079] 250, 260: Optical lens

[0080] θ: Viewing angle

[0081] da: Vertical distance from the arc portion to the optical axis

[0082] di: Maximum radius of the image-side optical surface

[0083] dm: Vertical distance from the annular marking structure to the optical axis

[0084] ds: Maximum radius of the outer peripheral surface

[0085] h: Protrusion height of the annular marking structure

[0086] L: Length of the region where the outer peripheral surface contacts the inner surface in the direction parallel to the optical axis

[0087] S1, S2, S3, S4: External space information

[0088] t: Distance from the annular marking structure in the direction perpendicular to the optical axis to the injection mark

[0089] X: Optical axis Detailed implementation manner

[0090] The present disclosure provides an imaging lens group having an optical axis and including at least one lens element. The lens element includes an optically effective region and an outer peripheral portion. The optical axis passes through the optically effective region, and the outer peripheral portion surrounds the optically effective region. The outer peripheral portion includes an object side surface, an image side surface, an outer peripheral surface, an annular marking structure, and at least one arc portion. The object side surface faces an object side, the image side surface faces an image side, and the image side surface corresponds to the object side surface. The outer peripheral surface connects the object side surface and the image side surface. The annular marking structure is provided on one of the object side surface and the image side surface, and the annular marking structure is an annular tip protrusion structure and surrounds the optical axis. The arc portion is provided on the other of the object side surface and the image side surface, and the arc portion is an annular convex arc. The vertical distance from the annular marking structure to the optical axis is dm, the vertical distance from the arc portion to the optical axis is da, and the radius of curvature of the arc portion is Ra, which satisfy the following conditions: 0.82 < da / dm < 1.18; and 0.025 mm ≤ Ra ≤ 0.5 mm.

[0091] By disposing the annular marking structure only on one side of the lens element and providing an arc portion on its corresponding side, the reflection of unnecessary light inside the lens element can be effectively reduced. At the same time, when the object side and the image side of the lens element are both provided with the annular marking structure, the possibility of excessive reflection of unnecessary light can be avoided. Thus, by disposing the annular marking structure on one side of the lens element and the arc portion on the other side, the dimensional accuracy and the release yield of the lens element can be improved.

[0092] Furthermore, the annular marking structure can be used to provide positioning of the lens element, thereby providing the effect of compensating for manufacturing tolerances.

[0093] Specifically, the annular marking structure can be disposed on the image side, and the arc portion is disposed on the object side. The annular marking structure can be a step difference formed when the mold is demolded, a complete ring, or a ring with a cut edge, but the present disclosure is not limited thereto. Further, the annular marking structure can have an included angle in a cross-section, where the included angle is between 80 degrees and 100 degrees. In this embodiment, the included angle is 90 degrees, but the present disclosure is not limited thereto. In addition, the annular marking structure is an annular tip protrusion structure, which can have a relatively sharp end; specifically, the radius of curvature (Rm) of its end can be less than 0.025 mm.

[0094] The lens element can be made by injection molding and can further include at least one injection mark, where the injection mark is disposed on the outer peripheral surface. Thus, a precision lens element with high precision and miniaturization can be provided.

[0095] When the distance from the annular marking structure to the injection mark in a direction perpendicular to the optical axis is t, it can satisfy the following condition: t ≤ 0.4 mm. Thus, the manufacturing efficiency in the mass production stage can be improved.

[0096] When the radius of curvature of the arc portion is Ra, it can satisfy the following condition: 0.035 mm ≤ Ra ≤ 0.45 mm. Thus, the probability of adhesion between the lens element and the mold can be reduced, and it is beneficial to the quality control in the demolding stage.

[0097] When the perpendicular distance from the annular marking structure to the optical axis is dm and the maximum radius of the outer peripheral surface is ds, it can satisfy the following condition: 0.7 < dm / ds < 1.0. Furthermore, it can satisfy the following condition: 0.8 < dm / ds < 1.0. Thus, the coaxiality on both sides of the optical effective area can be improved.

[0098] The optical effective area can include an object-side optical surface and an image-side optical surface. The object-side optical surface faces the object side, the image-side optical surface faces the image side, and at least one of the object-side optical surface and the image-side optical surface is an aspherical optical surface. Thus, a lens element with high resolution can be provided.

[0099] When the height of the protrusion of the annular marking structure is h, it can meet the following conditions: 0.0025 mm ≤ h ≤ 0.1 mm. Thereby, it is beneficial for the instrument to identify and can provide the feasibility of mold demolding.

[0100] The present disclosure provides an imaging lens module, which includes a lens barrel and an imaging lens group. The lens barrel has a plurality of inner surfaces and forms an internal space. The imaging lens group is disposed in the internal space of the lens barrel. The imaging lens group has an optical axis and includes at least one lens element. The lens element includes an optically effective region and an outer peripheral portion. The optical axis passes through the optically effective region, and the outer peripheral portion surrounds the optically effective region. The outer peripheral portion includes an object side surface, an image side surface, an outer peripheral surface, an annular marking structure, and at least one arc portion. The object side surface faces an object side, the image side surface faces an image side, and the image side surface corresponds to the object side surface. The outer peripheral surface connects the object side surface and the image side surface. The annular marking structure is only disposed on the image side surface, and the annular marking structure is an annular tip protrusion structure and surrounds the optical axis. The arc portion is disposed on the object side surface, and the arc portion is an annular convex arc. The perpendicular distance from the annular marking structure to the optical axis is dm, the perpendicular distance from the arc portion to the optical axis is da, and the radius of curvature of the arc portion is Ra, which satisfy the following conditions: 0.75 < da / dm < 1.25; and 0.025 mm ≤ Ra ≤ 0.5 mm.

[0101] Thereby, by providing an annular marking structure on the image side to improve the dimensional accuracy of the lens element and combining with the provision of an arc portion on the object side, the demolding yield of the lens element can be improved.

[0102] Furthermore, the annular marking structure can be used to provide positioning of the lens element, thereby providing the effect of compensating for manufacturing tolerances.

[0103] The object side surface of the lens element may include an axial alignment structure, which is used to abut against and center-align with another adjacent lens element. Thereby, the assembly yield can be improved, and thus better imaging quality can be provided. Specifically, the axial alignment structure may include an inclined surface and a flat surface, which are used to reduce the skew and offset between the lens elements, thereby achieving the effect of center alignment.

[0104] The image side surface of the lens element may include an axial alignment structure, which is used to abut against and center-align with another adjacent lens element. Thereby, the assembly yield can be improved, and thus better imaging quality can be provided. <​​​​When the perpendicular distance from the annular marking structure to the optical axis is dm and the maximum radius of the image-side optical surface is di, the following condition can be satisfied: 0.3 < di / dm < 0.8. Thereby, the mold replacement rate can be reduced, and the production cost can be further reduced.

[0107] Each technical feature in the imaging lens group of the above disclosure can be combined and configured or configured in the aforementioned imaging lens module to achieve the corresponding effects.

[0108] The present disclosure provides a camera module including the aforementioned imaging lens module and an electronic photosensitive element. The electronic photosensitive element is disposed on an imaging surface of the imaging lens module.

[0109] The present disclosure provides an electronic device including the aforementioned camera module.

[0110] According to the above embodiments, specific embodiments and examples are proposed below and will be described in detail with reference to the accompanying drawings.

[0111] <First Embodiment>

[0112] Please refer to Figures 1A to 1D , where Figure 1A shows a perspective view of the imaging lens module 100 in the first embodiment of the present disclosure, Figure 1B shows Figure 1A an exploded view of the imaging lens module 100 in the first embodiment, Figure 1C shows Figure 1A a partial cross-sectional view of the imaging lens module 100 in the first embodiment, Figure 1D shows Figure 1A a schematic view of the imaging lens module 100 in the first embodiment. As Figures 1A to 1D shown, the imaging lens module 100 includes a lens barrel 110 and an imaging lens group (not shown in the figure). The lens barrel 110 has a plurality of inner surfaces 111 and forms an internal space (not shown in the figure). The imaging lens group is disposed in the internal space of the lens barrel 110. It has an optical axis X and includes at least one lens element. Specifically, it includes three lens elements, namely a first lens element 120, a second lens element 130, and a third lens element 140, but the present disclosure is not limited thereto.

[0113] The imaging lens group may further include two light-shielding elements 150 and a stop ring 160. The two light-shielding elements 150 are respectively disposed between the first lens element 120 and the second lens element 130 and between the second lens element 130 and the third lens element 140. The stop ring 160 is disposed on the image side of the third lens element 140. The imaging lens group can be combined with other optical elements according to optical requirements and is not limited to the above content.

[0114] Please refer to Figure 1Eand Figure 1F ,in Figure 1E Drawing according to Figure 1D A schematic diagram of the first lens element 120 in the first embodiment. Figure 1F Drawing according to Figure 1E A schematic diagram of the parameters of the first lens element 120 in the first embodiment is shown. Figures 1C to 1F As shown, the first lens element 120 includes an optically effective region 121 and an outer peripheral portion 122. The optical axis X passes through the optically effective region 121, and the outer peripheral portion 122 surrounds the optically effective region 121. The outer peripheral portion 122 includes an object-side surface 1221, an image-side surface 1222, an outer peripheral surface 1223, an annular marking structure 1224, and two arcuate portions 1225 and 1226. The object-side surface 1221 faces an object side, and the image-side surface 1222 faces an image side and corresponds to the object-side surface 1221. The outer peripheral surface 1223 connects the object-side surface 1221 and the image-side surface 1222, and is in solid contact with one of the plurality of inner surfaces 111 of the lens barrel 110. The annular marking structure 1224 is disposed on one of the object-side surface 1221 and the image-side surface 1222, and the annular marking structure 1224 is an annular pointed protrusion structure surrounding the optical axis X. Two circular arc portions 1225 and 1226 are disposed on the other of the object side 1221 and the image side 1222, and each circular arc portion 1225 and 1226 is an annular convex arc. In the first embodiment, the annular marking structure 1224 is disposed on the image side 1222, and the two circular arc portions 1225 and 1226 are disposed on the object side 1221.

[0115] Specifically, the optically effective region 121 may include an object-side optical surface 1211 and an image-side optical surface 1212. The object-side optical surface 1211 faces the object side, and the image-side optical surface 1212 faces the image side, wherein at least one of the object-side optical surface 1211 and the image-side optical surface 1212 is an optical aspherical surface. In the first embodiment, both the object-side optical surface 1211 and the image-side optical surface 1212 are optical aspherical surfaces.

[0116] In addition, refer to Figure 1B The first lens element 120 may be manufactured by injection molding and may also include at least one injection mark 123. In the first embodiment, the first lens element 120 has one injection mark 123, and the injection mark 123 is disposed on the outer peripheral surface 1223 of the first lens element 120.

[0117] like Figures 1D to 1FAs shown, in the first lens element 120, the length of the area where the outer peripheral surface 1223 contacts an inner surface 111 along a direction parallel to the optical axis X is L, the protrusion height of the annular marking structure 1224 is h, the distance from the annular marking structure 1224 to the injection mark 123 along a direction perpendicular to the optical axis X is t, the vertical distance from the arc portion 1225 to the optical axis X is da, the vertical distance from the annular marking structure 1224 to the optical axis X is dm, the maximum radius of the outer peripheral surface 1223 is ds, and the maximum radius of the image-side optical surface 1212 is di. The parameters satisfy the conditions in Table 1 below.

[0118]

[0119] In the first lens element 120, the radii of curvature Ra of the two arc portions 1225 and 1226 are 0.03 mm and 0.05 mm, respectively.

[0120] Please refer to the following: Figure 1G and Figure 1H ,in Figure 1G Drawing according to Figure 1A Another schematic diagram of the imaging lens module 100 in the first embodiment. Figure 1H Drawing according to Figure 1G A schematic diagram of the parameters of the second lens element 130 in the first embodiment is shown. Figure 1G and Figure 1H As shown, the second lens element 130 includes an optically effective region 131 and an outer peripheral portion (not shown). The optical axis X passes through the optically effective region 131, and the outer peripheral portion surrounds the optically effective region 131. The outer peripheral portion includes an object-side surface 1321, an image-side surface 1322, an outer peripheral surface 1323, an annular marking structure 1324, and two arcuate portions 1325 and 1326. The object-side surface 1321 faces the object side, and the image-side surface 1322 faces the image side and corresponds to the object-side surface 1321. The outer peripheral surface 1323 connects the object-side surface 1321 and the image-side surface 1322, and is in solid contact with another of the plurality of inner surfaces 111 of the lens barrel 110. The annular marking structure 1324 is disposed on one of the object-side surface 1321 and the image-side surface 1322, and the annular marking structure 1324 is an annular pointed protrusion structure surrounding the optical axis X. Two arcuate portions 1325 and 1326 are disposed on the other of the object side 1321 and the image side 1322, and each arcuate portion 1325 and 1326 is an annular convex arc. In the first embodiment, the annular marking structure 1324 is disposed on the image side 1322, and the two arcuate portions 1325 and 1326 are disposed on the object side 1321.

[0121] Specifically, the optically effective region 131 may include an object-side optical surface 1311 and an image-side optical surface 1312. The object-side optical surface 1311 faces the object side, and the image-side optical surface 1312 faces the image side, wherein at least one of the object-side optical surface 1311 and the image-side optical surface 1312 is an optical aspherical surface. In the first embodiment, both the object-side optical surface 1311 and the image-side optical surface 1312 are optical aspherical surfaces.

[0122] In addition, refer to Figure 1B The second lens element 130 may be manufactured by injection molding and may further include at least one injection mark 133. In the first embodiment, the number of injection marks 133 of the second lens element 130 is one, and the injection mark 133 is disposed on the outer peripheral surface 1323 of the second lens element 130.

[0123] like Figure 1G and Figure 1H As shown, in the second lens element 130, the length of the area where the outer peripheral surface 1323 contacts the aforementioned other inner surface 111 along a direction parallel to the optical axis X is L, the protrusion height of the annular marking structure 1324 is h, the distance from the annular marking structure 1324 to the injection mark 133 along a direction perpendicular to the optical axis X is t, the vertical distance from the arc portion 1325 to the optical axis X is da, the vertical distance from the annular marking structure 1324 to the optical axis X is dm, the maximum radius of the outer peripheral surface 1323 is ds, and the maximum radius of the image-side optical surface 1312 is di. The parameters satisfy the conditions in Table 2 below.

[0124]

[0125] In the second lens element 130, the radius of curvature Ra of the two arc portions 1325 and 1326 is 0.03 mm.

[0126] Please refer to the following: Figure 1I and Figure 1J ,in Figure 1I Drawing according to Figure 1A Another schematic diagram of the imaging lens module 100 in the first embodiment. Figure 1J Drawing according to Figure 1I A schematic diagram of the parameters of the third lens element 140 in the first embodiment is shown. Figure 1I and Figure 1JAs shown, the third lens element 140 includes an optically effective region 141 and an outer peripheral portion (not shown). The optical axis X passes through the optically effective region 141, and the outer peripheral portion surrounds the optically effective region 141. The outer peripheral portion includes an object-side surface 1421, an image-side surface 1422, an outer peripheral surface 1423, an annular marking structure 1424, and two arcuate portions 1425 and 1426. The object-side surface 1421 faces the object side, and the image-side surface 1422 faces the image side and corresponds to the object-side surface 1421. The outer peripheral surface 1423 connects the object-side surface 1421 and the image-side surface 1422, and is in solid contact with one of the plurality of inner surfaces 111 of the lens barrel 110. The annular marking structure 1424 is disposed on one of the object-side surface 1421 and the image-side surface 1422, and the annular marking structure 1424 is an annular pointed protrusion structure surrounding the optical axis X. Two arcuate portions 1425 and 1426 are disposed on the other of the object side 1421 and the image side 1422, and each arcuate portion 1425 and 1426 is an annular convex arc. In the first embodiment, the annular marking structure 1424 is disposed on the image side 1422, and the two arcuate portions 1425 and 1426 are disposed on the object side 1421.

[0127] Specifically, the optically effective region 141 may include an object-side optical surface 1411 and an image-side optical surface 1412. The object-side optical surface 1411 faces the object side, and the image-side optical surface 1412 faces the image side, wherein at least one of the object-side optical surface 1411 and the image-side optical surface 1412 is an optical aspherical surface. In the first embodiment, both the object-side optical surface 1411 and the image-side optical surface 1412 are optical aspherical surfaces.

[0128] In addition, refer to Figure 1B The third lens element 140 may be injection molded and may also include at least one injection mark 143. In the first embodiment, the third lens element 140 has one injection mark 143, and the injection mark 143 is disposed on the outer peripheral surface 1423 of the third lens element 140.

[0129] like Figure 1I and Figure 1J As shown, in the third lens element 140, the length of the area where the outer peripheral surface 1423 contacts the aforementioned inner surface 111 along a direction parallel to the optical axis X is L, the protrusion height of the annular marking structure 1424 is h, the distance from the annular marking structure 1424 to the injection mark 143 along a direction perpendicular to the optical axis X is t, the vertical distance from the arc portion 1425 to the optical axis X is da, the vertical distance from the annular marking structure 1424 to the optical axis X is dm, the maximum radius of the outer peripheral surface 1423 is ds, and the maximum radius of the image-side optical surface 1412 is di. The parameters satisfy the conditions in Table 3 below.

[0130]

[0131]

[0132] In the third lens element 140, the radius of curvature Ra of the two arc portions 1425 and 1426 is 0.05 mm.

[0133] <Second Embodiment>

[0134] Please refer to Figure 2A The diagram illustrates an imaging lens module 200 according to the second embodiment of this disclosure. Figure 2A As shown, the imaging lens module 200 includes a lens barrel 210 and an imaging lens group (not shown). The lens barrel 210 has multiple inner surfaces 211 and forms an internal space (not shown). The imaging lens group is disposed in the internal space of the lens barrel 210, has an optical axis X, and includes a first lens element 220, a second lens element 230, a third lens element 240, and two optical lenses 250 and 260.

[0135] The imaging lens assembly may further include four light-shielding elements 270 and a stop ring 280. The four light-shielding elements 270 are respectively disposed between the first lens element 220 and the second lens element 230, between the second lens element 230 and the third lens element 240, between the third lens element 240 and the optical lens 250, and between the third lens element 240 and the two optical lenses 250 and 260. The stop ring 280 is disposed on one image side of the optical lens 260. The imaging lens assembly may be combined with other optical elements according to optical requirements, and is not limited to the above.

[0136] Please refer to the following: Figure 2B Its drawing is based on Figure 2A A schematic diagram of the parameters of the first lens element 220 in the second embodiment is shown. Figure 2A and Figure 2B As shown, the first lens element 220 includes an optically effective region 221 and an outer peripheral portion 222. The optical axis X passes through the optically effective region 221, and the outer peripheral portion 222 surrounds the optically effective region 221. The outer peripheral portion 222 includes an object-side surface, an image-side surface, an outer peripheral surface 2223, an annular marking structure 2224, and two arcuate portions 2225 and 2226. The object-side surface faces an object side, and the image-side surface faces an image side and corresponds to the object-side surface. The outer peripheral surface 2223 connects the object-side surface and the image-side surface and is in solid contact with one of the plurality of inner surfaces 211 of the lens barrel 210. The annular marking structure 2224 is only provided on the image-side surface, and the annular marking structure 2224 is an annular pointed protrusion structure surrounding the optical axis X. The two arcuate portions 2225 and 2226 are provided on the object-side surface, and each arcuate portion 2225 and 2226 is an annular convex arc.

[0137] Specifically, the optically effective region 221 may include an object-side optical surface 2211 and an image-side optical surface 2212. The object-side optical surface 2211 faces the object side, and the image-side optical surface 2212 faces the image side, wherein at least one of the object-side optical surface 2211 and the image-side optical surface 2212 is an optical aspherical surface. In the second embodiment, the object-side optical surface 2211 and the image-side optical surface 2212 are optical aspherical surfaces.

[0138] Furthermore, the first lens element 220 may be injection molded and may also include at least one injection mark 223. The number of injection marks 223 is one, and the injection mark 223 is disposed on the outer peripheral surface 2223 of the first lens element 220. In this way, a high-precision and miniaturized precision lens element can be provided.

[0139] like Figure 2A and Figure 2B As shown, the image-side surface of the first lens element 220 may include an axial alignment structure (not shown) for abutting and centering with the adjacent second lens element 230. This improves assembly yield and provides better image quality. Specifically, the axial alignment structure may include a chamfer 2227 and a plane 2228, which reduces the skew and offset between the first lens element 220 and the second lens element 230, thereby achieving center alignment.

[0140] In the first lens element 220, the length of the area where the outer peripheral surface 2223 contacts an inner surface 211 along a direction parallel to the optical axis X is L, the protrusion height of the annular marking structure 2224 is h, the distance from the annular marking structure 2224 to the injection mark 223 along a direction perpendicular to the optical axis X is t, the vertical distance from the arc portion 2225 to the optical axis X is da, the vertical distance from the annular marking structure 2224 to the optical axis X is dm, the maximum radius of the outer peripheral surface 2223 is ds, and the maximum radius of the image-side optical surface 2212 is di. The parameters satisfy the conditions in Table 4 below.

[0141]

[0142] In the first lens element 220, the radius of curvature Ra of the two arc portions 2225 and 2226 is 0.05 mm.

[0143] Please refer to the following: Figure 2C and Figure 2D ,in Figure 2C Drawing according to Figure 2A Another schematic diagram of the imaging lens module 200 in the second embodiment. Figure 2D Drawing according to Figure 2C A schematic diagram of the parameters of the second lens element 230 in the second embodiment is shown. Figure 2C and Figure 2DAs shown, the second lens element 230 includes an optically effective region 231 and an outer peripheral portion 232. The optical axis X passes through the optically effective region 231, and the outer peripheral portion 232 surrounds the optically effective region 231. The outer peripheral portion 232 includes an object-side surface, an image-side surface, an outer peripheral surface 2323, an annular marking structure 2324, and two arcuate portions 2325 and 2326. The object-side surface faces the object side, and the image-side surface faces the image side and corresponds to the object-side surface. The outer peripheral surface 2323 connects the object-side surface and the image-side surface and is in solid contact with another of the plurality of inner surfaces 211 of the lens barrel 210. The annular marking structure 2324 is only provided on the image-side surface, and the annular marking structure 2324 is an annular pointed protrusion structure surrounding the optical axis X. The two arcuate portions 2325 and 2326 are provided on the object-side surface, and each arcuate portion 2325 and 2326 is an annular convex arc.

[0144] Specifically, the optically effective region 231 may include an object-side optical surface 2311 and an image-side optical surface 2312. The object-side optical surface 2311 faces the object side, and the image-side optical surface 2312 faces the image side, wherein at least one of the object-side optical surface 2311 and the image-side optical surface 2312 is an optical aspherical surface. In the second embodiment, both the object-side optical surface 2311 and the image-side optical surface 2312 are optical aspherical surfaces.

[0145] Furthermore, the second lens element 230 may be injection molded and may also include at least one injection mark 233. The number of injection marks 233 is one, and the injection mark 233 is disposed on the outer peripheral surface 2323 of the second lens element 230. In this way, a high-precision and miniaturized precision lens element can be provided.

[0146] like Figure 2C and Figure 2D As shown, the object-side and image-side surfaces of the second lens element 230 may each include an axial alignment structure (not shown) for abutting against and centering with the adjacent first lens element 220 and third lens element 240. This improves assembly yield and provides better image quality. Specifically, the axial alignment structures on the object-side and image-side surfaces may each include a chamfer 2327 and a plane 2328, which reduce skew and offset between the first lens element 220 and the second lens element 230, and between the second lens element 230 and the third lens element 240, thereby achieving center alignment. More specifically, the chamfer 2327 and plane 2328 on the object-side surface of the second lens element 230 correspond to the chamfer 2227 and plane 2228 on the image-side surface of the first lens element 220, respectively.

[0147] In the second lens element 230, the length of the area where the outer peripheral surface 2323 contacts the other inner surface 211 along a direction parallel to the optical axis X is L, the protrusion height of the annular marking structure 2324 is h, the distance from the annular marking structure 2324 to the injection mark 233 along a direction perpendicular to the optical axis X is t, the vertical distance from the arc portion 2325 to the optical axis X is da, the vertical distance from the annular marking structure 2324 to the optical axis X is dm, the maximum radius of the outer peripheral surface 2323 is ds, and the maximum radius of the image-side optical surface 2312 is di. The parameters satisfy the conditions in Table 5 below.

[0148]

[0149] In the second lens element 230, the radii of curvature Ra of the two arc portions 2325 and 2326 are 0.025 mm and 0.1 mm, respectively.

[0150] Please refer to the following: Figure 2E and Figure 2F ,in Figure 2E Drawing according to Figure 2A Another schematic diagram of the imaging lens module 200 in the second embodiment. Figure 2F Drawing according to Figure 2E A schematic diagram of the parameters of the third lens element 240 in the second embodiment is shown. Figure 2E and Figure 2F As shown, the third lens element 240 includes an optically effective region 241 and an outer peripheral portion 242. The optical axis X passes through the optically effective region 241, and the outer peripheral portion 242 surrounds the optically effective region 241. The outer peripheral portion 242 includes an object-side surface, an image-side surface, an outer peripheral surface 2423, an annular marking structure 2424, and two arcuate portions 2425 and 2426. The object-side surface faces the object side, and the image-side surface faces the image side and corresponds to the object-side surface. The outer peripheral surface 2423 connects the object-side surface and the image-side surface and is in solid contact with one of the plurality of inner surfaces 211 of the lens barrel 210. The annular marking structure 2424 is only provided on the image-side surface, and the annular marking structure 2424 is an annular pointed protrusion structure surrounding the optical axis X. The two arcuate portions 2425 and 2426 are provided on the object-side surface, and each arcuate portion 2425 and 2426 is an annular convex arc.

[0151] Specifically, the optically effective region 241 may include an object-side optical surface 2411 and an image-side optical surface 2412. The object-side optical surface 2411 faces the object side, and the image-side optical surface 2412 faces the image side, wherein at least one of the object-side optical surface 2411 and the image-side optical surface 2412 is an optical aspherical surface. In the second embodiment, the object-side optical surface 2411 and the image-side optical surface 2412 are optical aspherical surfaces.

[0152] Furthermore, the third lens element 240 may be injection molded and may also include at least one injection mark 243. The injection mark 243 is one in number and is disposed on the outer peripheral surface 2423 of the third lens element 240. This provides a high-precision and miniaturized precision lens element.

[0153] like Figure 2E and Figure 2F As shown, the object-side and image-side surfaces of the third lens element 240 may each include an axial alignment structure (not shown) for abutting against and centering with the adjacent second lens element 230 and optical lens 250. This improves assembly yield and provides better image quality. Specifically, the axial alignment structures on the object-side and image-side surfaces may each include a chamfer 2427 and a plane 2428, which reduce skew and offset between the second lens element 230 and the third lens element 240, and between the third lens element 240 and the optical lens 250, thereby achieving center alignment. In detail, the chamfer 2427 and plane 2428 on the object-side surface of the third lens element 240 correspond to the chamfer 2327 and plane 2328 on the image-side surface of the second lens element 230, respectively.

[0154] In the third lens element 240, the length of the area where the outer peripheral surface 2423 contacts the aforementioned inner surface 211 along a direction parallel to the optical axis X is L, the protrusion height of the annular marking structure 2424 is h, the distance from the annular marking structure 2424 to the injection mark 243 along a direction perpendicular to the optical axis X is t, the vertical distance from the arc portion 2425 to the optical axis X is da, the vertical distance from the annular marking structure 2424 to the optical axis X is dm, the maximum radius of the outer peripheral surface 2423 is ds, and the maximum radius of the image-side optical surface 2412 is di. The parameters satisfy the conditions in Table 6 below.

[0155]

[0156]

[0157] In the third lens element 240, the radii of curvature Ra of the two arc portions 2425 and 2426 are 0.05 mm and 0.025 mm, respectively.

[0158] <Third Embodiment>

[0159] Please refer to Figure 3A and Figure 3B ,in Figure 3A A schematic diagram of the electronic device 10 according to the third embodiment of this disclosure is shown. Figure 3B Draw Figure 3A Another schematic diagram of the electronic device 10 in the third embodiment. Figure 3A and Figure 3BAs can be seen, the electronic device 10 in the third embodiment is a smartphone. The electronic device 10 includes at least one camera module. In the third embodiment, the number of camera modules is three, namely an ultra-wide-angle camera module 12, a high-pixel camera module 13, and a telephoto camera module 14. Furthermore, the camera module may include any of the imaging lens modules in the first and second embodiments and an electronic image sensor (not shown in the figure), and the electronic image sensor is disposed on an imaging surface of the imaging lens module (not shown in the figure), but this disclosure is not limited thereto. This helps to meet the current market requirements for the mass production and appearance of camera modules mounted on them in electronic devices.

[0160] Furthermore, the user enters the shooting mode through the user interface 11 of the electronic device 10. In the third embodiment, the user interface 11 can be a touch screen, which is used to display the image and has touch function. It can also be used to manually adjust the shooting angle to switch between different camera modules. At this time, the camera module gathers the imaging light onto the electronic photosensitive element and outputs the relevant electronic signal of the image to the image signal processing element (ISP) 15.

[0161] Furthermore, the electronic device 10 may further include, but is not limited to, a display unit, a control unit, a storage unit, random access memory (RAM), read-only memory (ROM), or a combination thereof.

[0162] Figure 3C Drawing according to Figure 3A A schematic diagram of an image captured by the ultra-wide-angle camera module 12 in the third embodiment. Figure 3C It can be seen that the ultra-wide-angle camera module 12 can capture images of a larger range and has the function of capturing more scenery.

[0163] Figure 3D Drawing according to Figure 3A A schematic diagram of an image captured by the high-resolution camera module 13 in the third embodiment. Figure 3D It can be seen that the high-pixel camera module 13 can capture images within a certain range and also has high pixel count, with high resolution and low distortion.

[0164] Figure 3E Drawing according to Figure 3A A schematic diagram of an image captured by the telephoto camera module 14 in the third embodiment. Figure 3E It is known that the telephoto camera module 14 has a high magnification function, which can capture images at a distance and magnify them to a high degree.

[0165] Depend on Figures 3C to 3EIt is understood that by using camera modules with different focal lengths for framing and combining them with image processing technology, the electronic device 10 can achieve the function of zooming.

[0166] <Fourth Embodiment>

[0167] Please refer to Figure 4 The diagram illustrates an electronic device 20 according to the fourth embodiment of this disclosure. Figure 4 As can be seen, the electronic device 20 in the fourth embodiment is a smartphone. The electronic device 20 includes at least one camera module. In the fourth embodiment, the number of camera modules is nine, namely two ultra-wide-angle camera modules 21, two wide-angle camera modules 22, two high-pixel camera modules 23, two telephoto camera modules 24, and one TOF module 25 (Time-Of-Flight). Furthermore, the camera module may include any of the imaging lens modules in the first and second embodiments and an electronic image sensor (not shown in the figure), and the electronic image sensor is disposed on an imaging surface of the imaging lens module (not shown in the figure), but this disclosure is not limited thereto. This helps to meet the current market requirements for the mass production and appearance of camera modules mounted on them.

[0168] Depending on the camera specifications of the electronic device 20, the electronic device 20 may also include at least one auxiliary optical element (not shown). In the fourth embodiment, the auxiliary optical element is a flash module 26. The flash module 26 can be used to compensate for color temperature. Therefore, the camera module used with this disclosure can provide a better shooting experience.

[0169] <Fifth Embodiment>

[0170] Please refer to Figure 5A The diagram illustrates a vehicle tool 30 according to the fifth embodiment of this disclosure. Figure 5A As shown, the vehicle tool 30 includes a plurality of camera modules 31. The camera module 31 may include any of the imaging lens modules in the first and second embodiments described above and an electronic photosensitive element (not shown in the figure), and the electronic photosensitive element is disposed on an imaging surface of the imaging lens module (not shown in the figure), but the content of this disclosure is not limited thereto.

[0171] In the fifth embodiment, the two camera modules 31 are respectively located below the left and right rearview mirrors of the vehicle tool 30, and capture image information from a viewing angle θ. Specifically, the viewing angle θ can satisfy the following condition: 40 degrees < θ < 90 degrees. In this way, image information within the range of the left and right lanes can be captured.

[0172] Please refer to the following: Figure 5B , Figure 5C and Figure 5D ,in Figure 5B Drawing according to Figure 5A Top view of the vehicle tool 30 of the fifth embodiment. Figure 5C Drawing according to Figure 5B A partially enlarged schematic diagram of the vehicle tool 30 in the fifth embodiment. Figure 5D Drawing according to Figure 5A Another schematic diagram of the vehicle tool 30 according to the fifth embodiment. (See also...) Figure 5B and Figure 5C As shown, the camera module 31 can be installed inside the vehicle tool 30. Specifically, the camera module 31 is installed near the rearview mirror and near the rear window. Furthermore, the camera module 31 can be installed on the non-mirror surfaces of the left and right rearview mirrors of the vehicle tool 30. Figure 5D As shown, the configuration of camera module 31 helps the driver obtain information about the external space outside the cockpit, such as external space information S1, S2, S3, and S4, but this disclosure is not limited to this. This provides more perspectives to reduce blind spots, thereby helping to improve driving safety.

[0173] 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 assembly having an optical axis and comprising at least one lens element, characterized in that, The lens element includes: an optically effective area through which the optical axis passes; and an outer peripheral portion surrounding the optically effective area, the outer peripheral portion including: an object side surface facing an object side; an image side surface facing an image side and corresponding to the object side surface; an outer peripheral surface connecting the object side surface and the image side surface; an annular marking structure provided on one of the object side surface and the image side surface, and the annular marking structure is an annular tip convex structure and surrounds the optical axis; and at least one arc portion provided on the other of the object side surface and the image side surface, and the arc portion is an annular convex arc; wherein the perpendicular distance from the annular marking structure to the optical axis is dm, the perpendicular distance from the arc portion to the optical axis is da, and the radius of curvature of the arc portion is Ra, which satisfy the following conditions: 0.82 < da / dm < 1.18; and 0.025 mm ≤ Ra ≤ 0.5 mm.

2. The imaging lens assembly according to claim 1, characterized in that, The lens element is made by injection molding and further includes at least one injection mark provided on the outer peripheral surface.

3. The imaging lens assembly according to claim 2, characterized in that, The distance from the annular marking structure to the injection mark in a direction perpendicular to the optical axis is t, which satisfies the following condition: t ≤ 0.4 mm.

4. The imaging lens assembly according to claim 1, characterized in that, The radius of curvature of the arc portion is Ra, which satisfies the following conditions: 0.035 mm ≤ Ra ≤ 0.45 mm.

5. The imaging lens assembly according to claim 1, characterized in that, The perpendicular distance from the annular marking structure to the optical axis is dm, and the maximum radius of the outer peripheral surface is ds, which satisfies the following conditions: 0.7 < dm / ds < 1.

0.

6. The imaging lens assembly according to claim 1, characterized in that, The optically effective area includes: an object side optical surface facing the object side; and an image side optical surface facing the image side, wherein at least one of the object side optical surface and the image side optical surface is an aspherical surface.

7. The imaging lens assembly according to claim 1, characterized in that, The convex height of the annular marking structure is h, which satisfies the following conditions: 0.0025 mm ≤ h ≤ 0.1 mm.

8. An imaging lens module, characterized in that, Includes: a lens barrel having a plurality of inner surfaces and forming an internal space; and an imaging lens group disposed in the internal space of the lens barrel, the imaging lens group having an optical axis and including at least one lens element, the lens element including: an optically effective area through which the optical axis passes; and an outer peripheral portion surrounding the optically effective area, the outer peripheral portion including: an object side surface facing the object side; an image side surface facing the image side and corresponding to the object side surface; an outer peripheral surface connecting the object side surface and the image side surface and in physical contact with one of the inner surfaces of the lens barrel; an annular marking structure provided only on the image side surface, and the annular marking structure is an annular tip convex structure and surrounds the optical axis; and at least one arc portion provided on the object side surface, and the arc portion is an annular convex arc; wherein the perpendicular distance from the annular marking structure to the optical axis is dm, the perpendicular distance from the arc portion to the optical axis is da, and the radius of curvature of the arc portion is Ra, which satisfy the following conditions: 0.75 < da / dm < 1.25; and 0.025 mm ≤ Ra ≤ 0.5 mm.

9. The imaging lens module according to claim 8, characterized in that, The object side surface of the at least one lens element includes an axial alignment structure for abutting and centering with an adjacent other lens element.

10. The imaging lens module according to claim 8, characterized in that, The image-side surface of the at least one lens element includes an axial alignment structure for abutting against and centering with an adjacent lens element.

11. The imaging lens module according to claim 8, characterized in that, The radius of curvature of the arc is Ra, which satisfies the following condition: 0.035mm≤Ra≤0.45mm.

12. The imaging lens module according to claim 8, characterized in that, The annular marker structure is perpendicular to the optical axis at a distance of dm, and its maximum radius is ds. It satisfies the following conditions: 0.8 <dm / ds<1.0。 13. The imaging lens module according to claim 8, characterized in that, The region where the outer peripheral surface contacts one of the inner surfaces has a length L along a direction parallel to the optical axis, and satisfies the following condition: L<0.1mm.

14. The imaging lens module according to claim 8, characterized in that, The effective optical region includes: An object-side optical surface, facing the object side; and An image-side optical surface facing the image side, wherein at least one of the object-side optical surface and the image-side optical surface is an optical aspherical surface.

15. The imaging lens module according to claim 14, characterized in that, The annular marker structure is perpendicularly distanced from the optical axis by dm, and the maximum radius of the image-side optical surface is di, satisfying the following conditions: 0.3 <di / dm<0.8。 16. The imaging lens module according to claim 8, characterized in that, The protrusion height of the ring-shaped marker structure is h, and it satisfies the following condition: 0.0025mm≤h≤0.1mm.

17. A camera module, characterized in that, Include: The imaging lens module as described in claim 8; and An electronic photosensitive element is disposed on an imaging surface of the imaging lens module.

18. An electronic device, characterized in that, Include: The camera module as described in claim 17.

Images