Camera module, image module and electronic device

Abstract

A camera module, an image module and an electronic device. The camera module includes an imaging lens and an image sensor. The imaging lens includes a plastic optical element. A light-shielding film layer is disposed on a light-transmitting surface of the plastic optical element. The plastic optical element includes an optically effective region. An edge region of the light-shielding film layer forms a specific shape around the optically effective region, so that the light-shielding film layer is used to define a light-transmitting region corresponding to the optically effective region. The edge region includes a main body portion and a compensation portion. The compensation portion is disposed at an edge of the main body portion adjacent to the optically effective region. The compensation portion is closer to the optically effective region than the main body portion. The compensation portion extends toward the optically effective region, and the compensation portion has a lower optical density than the main body portion. The image sensor is disposed on an image side of the imaging lens. In this way, the optical quality can be improved.

Description

Technical Field

[0001] This disclosure relates to a camera module and an image module, and more particularly to a camera module and an image module used in a portable electronic device. 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 and image modules mounted on these portable electronic devices have also flourished. Due to advancements in semiconductor technology, the light sensitivity and resolution of image sensors have improved dramatically, making imperfections in the light-shielding coating of imaging lenses an issue that cannot be ignored.

[0003] Existing light-shielding films often achieve their effect by excessively blocking light, which sacrifices the surrounding optical quality and reduces relative illumination. Furthermore, existing light-shielding films cannot form specific shapes at the micrometer scale.

[0004] Furthermore, if the edge area of ​​the light-shielding film has defects, unexpected light that was originally blocked may pass through, causing a decrease in optical quality. The defects may be caused by random defects generated during molding or by the inability to achieve micron-scale dimensional control of the light-shielding film. On the other hand, the uniformity of film thickness determines the light-shielding quality. Thinner areas of the light-shielding film may be penetrated by light, and the noise generated by this penetrated light in the image sensor will be difficult to eliminate. Due to advancements in electronic technology, photosensitive elements can acquire information from lower brightness levels, enabling them to operate in low-light environments. However, when the optical density of the light-shielding film is insufficient, light will penetrate the film and be received by the photosensitive element, creating noise.

[0005] Please refer to FIGS. 8A-8F ,in FIGS. 8A-8F A schematic diagram of a light-shielding film layer 860 according to the prior art is shown. FIGS. 8A-8FIt is known that the light shielding film layer 860 is often used to control the light path of light, thereby eliminating the light spot or glare. However, when the incident light is too strong, the edge of the light shielding film layer 860 is easy to produce stray light, affecting the optical quality, which is caused by the defects P, P1, P2, P2', P3 of the light shielding film layer. The defects P, P1, P2, P2', P3 can be discussed in three points, the first is that the edge area of the light shielding film layer 860 has defects, the second is that the light shielding film layer 860 is not uniformly coated, and the third is that the optical concentration of the light shielding film layer 860 is insufficient. Specifically, the defects P, P1 exist in the edge area (not marked in the figure) of the light shielding film layer 860, that is, the main body part 862 of the edge area. The defects P, P1 are caused by the fact that the surface roughness is too large, and are not limited to the above reasons. It must be pointed out that the main body part 862 is in physical contact with the light transmission surface 871 of the plastic optical element (not shown in the figure). The defect P2 is caused by the uneven optical concentration of the light shielding film layer 860. The defect P2 is caused by the influence of surface tension, the light shielding film layer 860 is gathered at the edge, or the light shielding film layer 860 is gathered due to the protrusions or depressions on the surface, and is not limited to the above reasons. Furthermore, the defect P2 can further cause the optical concentration of the peripheral light shielding film layer 860 to be insufficient and form the defect P2'. The defect P3 is caused by the fact that the surface has a high difference, and is not limited to the above reasons.

[0006] Therefore, it is an important and urgent problem in the industry to develop a camera module and an image module with a light shielding film layer with precise control characteristics. SUMMARY

[0007] The present disclosure provides a camera module, an image module and an electronic device by arranging a light shielding film layer with precise control characteristics on a plastic optical element to improve the optical quality.

[0008] A camera module is provided according to an embodiment of the present disclosure. The camera module includes an imaging lens and an image sensor. The imaging lens includes a plastic optical element. A light-shielding film layer is disposed on a light-transmitting surface of the plastic optical element. The plastic optical element includes an optically effective region. An edge region of the light-shielding film layer forms a specific shape around the optically effective region, so that the light-shielding film layer defines a light-transmitting region corresponding to the optically effective region. The edge region includes a main portion and a compensation portion. The main portion is in physical contact with the light-transmitting surface. The compensation portion is disposed at an edge of the main portion adjacent to the optically effective region. The compensation portion is closer to the optically effective region than the main portion. The compensation portion extends toward the optically effective region. The compensation portion has a lower optical density than the main portion. The image sensor is disposed on an image side of the imaging lens. The image sensor defines a maximum image height. The imaging lens defines a relative illumination corresponding to the maximum image height. The light-transmitting surface has a roughness RO equal to or less than 1.2 um. The light-transmitting surface includes a ring-shaped mark structure having an angular end. The angular end surrounds the optically effective region. The relative illumination of the imaging lens is RI. The optical density of the main portion is DM. A thickness of the main portion is T. An extension distance of the compensation portion is L. The following conditions are satisfied: -LOG(RI) / DM≤1.2; 3 degrees≤tan -1 (T / L)≤89.5 degrees; 0.7 um -1 ≤DM / T≤7.2 um -1 ; and 0 um

[0009] The camera module according to the embodiment of the preceding paragraph, wherein the imaging lens defines a half field of view corresponding to the maximum image height. The half field of view is HFOV. The relative illumination of the imaging lens is RI. The following condition is satisfied: 0.04≤RI×sin(HFOV)≤0.35.

[0010] The camera module according to the embodiment of the preceding paragraph, wherein the thickness of the main portion is T. The following condition is satisfied: 0.14 um≤T≤9.85 um. In addition, the following condition is satisfied: 0.28 um≤T≤4.95 um. In addition, the following condition is satisfied: 0.48 um≤T≤1.95 um.

[0011] The camera module according to the embodiment of the preceding paragraph, wherein the extension distance of the compensation portion is L. The following condition is satisfied: 0 um

[0012] The camera module according to the embodiment of the preceding paragraph, wherein the optical density of the main portion is DM. The thickness of the main portion is T. The following condition is satisfied: 1.6 um -1 ≤DM / T≤1.95 um -1 .

[0013] The camera module according to the preceding embodiment, wherein a roughness of the light-transmitting surface is RO, a roughness of the main portion is RM, and the following condition is satisfied: 0≤|1-RO / RM|≤0.6.

[0014] The camera module according to the preceding embodiment, wherein the plastic optical element is a plastic lens, the plastic lens includes an aspherical surface, and the aspherical surface corresponds to the optically effective region.

[0015] The camera module according to the preceding embodiment, wherein the plastic optical element is a plastic reflection element, the plastic reflection element includes at least one reflection surface, and the reflection surface is disposed on the same optical path as the optically effective region.

[0016] An electronic device according to an embodiment of the present disclosure includes at least one camera module according to the preceding embodiments.

[0017] A camera module according to an embodiment of the present disclosure includes an imaging lens and an image sensor. The imaging lens includes a plastic optical element. A light-shielding film layer is disposed on a light-transmitting surface of the plastic optical element, and the plastic optical element includes an optically effective region. An edge region of the light-shielding film layer forms a specific shape around the optically effective region, so that the light-shielding film layer defines a light-transmitting region corresponding to the optically effective region. The edge region includes a main portion and a compensation portion. The main portion is in physical contact with the light-transmitting surface. The compensation portion is disposed at an edge of the main portion adjacent to the optically effective region. The compensation portion is closer to the optically effective region than the main portion. The compensation portion extends toward the optically effective region, and the compensation portion has a lower optical density than the main portion. The image sensor is disposed on an image side of the imaging lens. The image sensor defines a maximum image height, and the imaging lens defines a relative illumination corresponding to the maximum image height. A roughness of the light-transmitting surface is RO, which is equal to or less than 1.2 um. The light-transmitting surface includes a ring-shaped mark structure having an angular end, and the angular end surrounds the optically effective region. A relative illumination of the imaging lens is RI, an optical density of the main portion is DM, a thickness of the main portion is T, a maximum extension distance of the compensation portion is Lmax, and an area of the compensation portion is A, which satisfy the following conditions: -LOG(RI) / DM≤1.2; 0.7um -1 ≤DM / T≤7.2um -1 ; 0um

[0018] The camera module according to the preceding embodiment, wherein the imaging lens defines a half field of view corresponding to the maximum image height, the half field of view is HFOV, and a relative illumination of the imaging lens is RI, which satisfy the following condition: 0.04≤RI×sin(HFOV)≤0.35.

[0019] The camera module according to the preceding embodiment, wherein a thickness of the main body portion is T, a maximum extension distance of the compensation portion is Lmax, and the following condition is satisfied: 3 degrees ≤ tan -1 (T / Lmax) ≤ 89.5 degrees.

[0020] The camera module according to the preceding embodiment, wherein a maximum extension distance of the compensation portion is Lmax, and the following condition is satisfied: 0 um < Lmax ≤ 16 um. In addition, the following condition can be satisfied: 0 um < Lmax ≤ 7 um.

[0021] The camera module according to the preceding embodiment, wherein a thickness of the main body portion is T, and the following condition is satisfied: 0.14 um ≤ T ≤ 9.85 um. In addition, the following condition can be satisfied: 0.28 um ≤ T ≤ 4.95 um. In addition, the following condition can be satisfied: 0.48 um ≤ T ≤ 1.95 um.

[0022] The camera module according to the preceding embodiment, wherein an optical concentration of the main body portion is DM, a thickness of the main body portion is T, and the following condition is satisfied: 1.6 um -1 ≤ DM / T ≤ 1.95 um -1 .

[0023] The camera module according to the preceding embodiment, wherein a roughness of the light-transmitting surface is RO, a roughness of the main body portion is RM, and the following condition is satisfied: 0 ≤ |1-RO / RM| ≤ 0.6.

[0024] The camera module according to the preceding embodiment, wherein the plastic optical element can be a plastic lens, the plastic lens includes an aspherical surface, and the aspherical surface corresponds to the optically effective region.

[0025] The camera module according to the preceding embodiment, wherein the plastic optical element can be a plastic reflecting element, the plastic reflecting element includes at least one reflecting surface, and the reflecting surface and the optically effective region are disposed on the same optical path.

[0026] An electronic device according to an embodiment of the present disclosure includes at least one camera module according to the preceding embodiments.

[0027] A camera module is provided according to an embodiment of the present disclosure. The camera module includes an imaging lens and an image sensor. The imaging lens includes a plastic optical element. A light-shielding film layer is disposed on a light-transmitting surface of the plastic optical element. The plastic optical element includes an optically effective region. An edge region of the light-shielding film layer forms a specific shape around the optically effective region, so that the light-shielding film layer defines a light-transmitting region corresponding to the optically effective region. The edge region includes a main portion and a compensation portion. The main portion is in physical contact with the light-transmitting surface. The compensation portion is disposed at an edge of the main portion adjacent to the optically effective region. The compensation portion is closer to the optically effective region than the main portion. The compensation portion extends toward the optically effective region. The compensation portion has a lower optical density than the main portion. The compensation portion includes a tip and an inverse bevel. The tip is disposed at an end away from the main portion. The inverse bevel faces the light-transmitting surface. The inverse bevel is closer to the light-transmitting surface from the tip toward the main portion. An air gap is formed between the inverse bevel and the light-transmitting surface. The image sensor is disposed on an image side of the imaging lens. The image sensor defines a maximum image height. The imaging lens defines a relative illumination corresponding to the maximum image height. The light-transmitting surface has a roughness RO equal to or less than 1.2 um. The light-transmitting surface includes a ring-shaped mark structure having an angular end. The angular end surrounds the optically effective region. The relative illumination of the imaging lens is RI. The optical density of the main portion is DM. A thickness of the main portion is T. An extension distance of the compensation portion is L. The following conditions are satisfied: -LOG(RI) / DM≤1.2; 3 degrees≤tan -1 (T / L)≤89.5 degrees; and 0 um

[0028] The camera module according to the preceding embodiment, wherein the imaging lens defines a half field of view corresponding to the maximum image height. The half field of view is HFOV. The relative illumination of the imaging lens is RI. The following condition is satisfied: 0.04≤RI×sin(HFOV)≤0.35.

[0029] The camera module according to the preceding embodiment, wherein the optical density of the main portion is DM. The thickness of the main portion is T. The following conditions are satisfied: 0.7 um -1 ≤DM / T≤7.2 um -1 . In addition, the following condition is satisfied: 1.6 um -1 ≤DM / T≤1.95 um -1 .

[0030] The camera module according to the preceding embodiment, wherein the extension distance of the compensation portion is L. The following condition is satisfied: 0 um

[0031] The camera module according to the preceding embodiment, wherein a thickness of the main portion is T, which satisfies the following condition: 0.14um ≤ T ≤ 9.85um. In addition, it satisfies the following condition: 0.28um ≤ T ≤ 4.95um. In addition, it satisfies the following condition: 0.48um ≤ T ≤ 1.95um.

[0032] The camera module according to the preceding embodiment, wherein a roughness of the light-transmitting surface is RO, and a roughness of the main portion is RM, which satisfies the following condition: 0 ≤ |1-RO / RM| ≤ 0.6.

[0033] The camera module according to the preceding embodiment, wherein the plastic optical element is a plastic lens, the plastic lens includes an aspherical surface, and the aspherical surface corresponds to the optically effective region.

[0034] The camera module according to the preceding embodiment, wherein the plastic optical element is a plastic reflective element, the plastic reflective element includes at least one reflective surface, and the reflective surface is disposed on the same optical path as the optically effective region.

[0035] An electronic device according to an embodiment of the present disclosure includes at least one camera module according to the preceding embodiments.

[0036] A camera module according to an embodiment of the present disclosure includes an imaging lens and an image sensor. The imaging lens includes a plastic optical element. A light-shielding film layer is disposed on a light-transmitting surface of the plastic optical element, and the plastic optical element includes an optically effective region. An edge region of the light-shielding film layer forms a specific shape around the optically effective region, so that the light-shielding film layer defines a light-transmitting region corresponding to the optically effective region. The edge region includes a main portion. The main portion forms the specific shape. The image sensor is disposed on an image side of the imaging lens. The image sensor defines a maximum image height. The imaging lens defines a relative luminance and a half field of view corresponding to the maximum image height. A roughness of the light-transmitting surface is RO, which is equal to or less than 1.2um. The light-transmitting surface includes a ring-shaped mark structure having an angular end, and the angular end surrounds the optically effective region. A thickness of the main portion is T, an optical density of the main portion is DM, the relative luminance of the imaging lens is RI, and the half field of view is HFOV, which satisfy the following conditions: -LOG(RI) / DM ≤ 1.2; 0.14um ≤ T ≤ 9.85um; 0.7um -1 ≤ DM / T ≤ 7.2um -1 ; and 0.04 ≤ RI × sin(HFOV) ≤ 0.35.

[0037] The camera module according to the preceding embodiment, wherein an optical density of the main portion is DM, and a thickness of the main portion is T, which satisfies the following condition: 1.6um -1≤ DM / T ≤ 1.95 um -1 .

[0038] The camera module according to the previous embodiment, wherein a roughness of the light-transmitting surface is RO, a roughness of the main portion is RM, and the following condition is satisfied: 0 ≤ |1-RO / RM| ≤ 0.6.

[0039] The camera module according to the previous embodiment, wherein the plastic optical element is a plastic lens, the plastic lens includes an aspherical surface, and the aspherical surface corresponds to the optically effective region.

[0040] The camera module according to the previous embodiment, wherein the plastic optical element is a plastic reflection element, the plastic reflection element includes at least one reflection surface, and the reflection surface is disposed on the same optical path as the optically effective region.

[0041] An electronic device according to an embodiment of the present disclosure includes at least one camera module according to the previous embodiment.

[0042] An image module according to an embodiment of the present disclosure includes a lens and an image source, wherein the lens includes a glass lens and a plastic lens, and the image source is disposed on a light-incident side of the lens. The glass lens is closer to the image source than the plastic lens. A light-shielding film layer is disposed on a light-transmitting surface of the plastic lens, and the plastic lens includes an optically effective region. An edge region of the light-shielding film layer forms a specific shape around the optically effective region, so that the light-shielding film layer defines a light-transmitting region corresponding to the optically effective region. A roughness of the light-transmitting surface is RO, which is equal to or less than 1.2 um. The light-transmitting surface includes a ring-shaped mark structure having an angular end, and the angular end surrounds the optically effective region. The edge region includes a main portion, wherein the main portion forms the specific shape. A thickness of the main portion is T, and an optical density of the main portion is DM, which satisfy the following conditions: 0.14 um ≤ T ≤ 9.85 um; and 0.7 um -1 ≤ DM / T ≤ 7.2 um -1 .

[0043] The image module according to the previous embodiment, wherein the optical density of the main portion is DM, and the thickness of the main portion is T, which satisfy the following conditions: 1.6 um -1 ≤ DM / T ≤ 1.95 um -1 .

[0044] The image module according to the previous embodiment, wherein a roughness of the light-transmitting surface is RO, a roughness of the main portion is RM, and the following condition is satisfied: 0 ≤ |1-RO / RM| ≤ 0.6.

[0045] The image module according to the preceding embodiment, wherein the optically effective region of the light-transmitting surface can be an aspheric surface, the aspheric surface comprising at least one inflection point.

[0046] An electronic device according to an embodiment of the present disclosure comprises at least one image module according to the preceding embodiments.

[0047] An image module according to an embodiment of the present disclosure comprises a lens and an image source, wherein the lens comprises, in order from an entrance side to an exit side, a reflective element and a plastic lens, and the image source is disposed at the entrance side of the lens. A light-shielding film layer is disposed on a light-transmitting surface of the plastic lens, and the plastic lens comprises an optically effective region. An edge region of the light-shielding film layer forms a specific shape around the optically effective region, so that the light-shielding film layer is used to define a light-transmitting region corresponding to the optically effective region. The roughness of the light-transmitting surface is RO, which is equal to or less than 1.2 um. The light-transmitting surface comprises a ring-shaped mark structure having an angular end, and the angular end surrounds the optically effective region. The edge region comprises a main body, wherein the main body forms the specific shape. A thickness of the main body is T, and the optical density of the main body is DM, which satisfies the following conditions: 0.14 um≤T≤9.85 um; and 0.7 um -1 ≤DM / T≤7.2 um -1 .

[0048] The image module according to the preceding embodiment, wherein the optical density of the main body is DM, and the thickness of the main body is T, which can satisfy the following conditions: 1.6 um -1 ≤DM / T≤1.95 um -1 .

[0049] The image module according to the preceding embodiment, wherein the roughness of the light-transmitting surface is RO, and the roughness of the main body is RM, which can satisfy the following conditions: 0≤|1-RO / RM|≤0.6.

[0050] The image module according to the preceding embodiment, wherein the optically effective region of the light-transmitting surface can be an aspheric surface, the aspheric surface comprising at least one inflection point.

[0051] An electronic device according to an embodiment of the present disclosure comprises at least one image module according to the preceding embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0052] FIG. 1A A schematic view of a camera module according to a first embodiment of the present disclosure is shown;

[0053] FIG. 1B A perspective view of an imaging lens according to the first embodiment is shown; FIG. 1A

[0054] ​FIG. 1C a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1B a schematic diagram illustrating a plastic lens in the first embodiment;

[0055] FIG. 1D a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1C a schematic diagram illustrating a plastic lens in the first embodiment;

[0056] FIG. 1E a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1D a schematic diagram illustrating a plastic lens in the first embodiment;

[0057] FIG. 1F a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1E a schematic diagram illustrating a plastic lens in the first embodiment;

[0058] FIG. 1G a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1E a schematic diagram illustrating a plastic lens in the first embodiment;

[0059] FIG. 1H a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1E a schematic diagram illustrating a plastic lens in the first embodiment;

[0060] FIG. 1I a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1E a schematic diagram illustrating a plastic lens in the first embodiment;

[0061] FIG. 1J a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1E a schematic diagram illustrating a plastic lens in the first embodiment;

[0062] FIG. 1K a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1E a schematic diagram illustrating a plastic lens in the first embodiment;

[0063] FIG. 1L a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1E a schematic diagram illustrating a plastic lens in the first embodiment;

[0064] FIG. 1M a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1E a schematic diagram illustrating a plastic lens in the first embodiment;

[0065] FIG. 1N a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1E a schematic diagram illustrating a plastic lens in the first embodiment;

[0066] FIG. 1O a schematic diagram illustrating a plastic lens in the first embodiment; FIG. 1E a schematic diagram illustrating a plastic lens in the first embodiment;

[0067] FIG. 1P FIG. 13 illustrates a schematic diagram of a camera module according to the first embodiment of the present disclosure; FIG. 1E FIG. 14 illustrates a schematic diagram of parameters of a light-shielding film layer in a first embodiment of the present disclosure;

[0068] FIG. 1Q FIG. 15 illustrates a schematic diagram of a camera module according to the first embodiment of the present disclosure; FIG. 1E FIG. 16 illustrates a schematic diagram of parameters of a light-shielding film layer in a first embodiment of the present disclosure;

[0069] FIG. 1R FIG. 17 illustrates a schematic diagram of a camera module according to the first embodiment of the present disclosure; FIG. 1E FIG. 18 illustrates a schematic diagram of parameters of a light-shielding film layer in a first embodiment of the present disclosure;

[0070] FIG. 1S FIG. 19 illustrates a schematic diagram of a camera module according to the first embodiment of the present disclosure; FIG. 1E FIG. 20 illustrates a schematic diagram of parameters of a light-shielding film layer in a first embodiment of the present disclosure;

[0071] FIG. 1T FIG. 21 illustrates a schematic diagram of a camera module according to the first embodiment of the present disclosure; FIG. 1E FIG. 22 illustrates a schematic diagram of parameters of a light-shielding film layer in a first embodiment of the present disclosure;

[0072] FIG. 1U FIG. 23 illustrates a schematic diagram of a camera module according to the first embodiment of the present disclosure; FIG. 1E FIG. 24 illustrates a schematic diagram of parameters of a light-shielding film layer in a first embodiment of the present disclosure;

[0073] FIG. 1V FIG. 25 illustrates a schematic diagram of a camera module according to the first embodiment of the present disclosure; FIG. 1E FIG. 26 illustrates a schematic diagram of parameters of a light-shielding film layer in a first embodiment of the present disclosure;

[0074] FIG. 2A FIG. 27 illustrates a schematic diagram of a camera module according to the second embodiment of the present disclosure;

[0075] FIG. 2B FIG. 28 illustrates a perspective view of an imaging lens according to the second embodiment of the present disclosure; FIG. 2A FIG. 29 illustrates an exploded view of an imaging lens according to the second embodiment of the present disclosure;

[0076] FIG. 2C FIG. 30 illustrates a schematic diagram of a plastic lens according to the second embodiment of the present disclosure; FIG. 2B FIG. 31 illustrates another schematic diagram of a plastic lens according to the second embodiment of the present disclosure;

[0077] FIG. 2D FIG. 32 illustrates a schematic diagram of a compensation portion of a light-shielding film layer according to the second embodiment of the present disclosure; FIG. 2C FIG. 33 illustrates another schematic diagram of a compensation portion of a light-shielding film layer according to the second embodiment of the present disclosure;

[0078] FIG. 2E FIG. 34 illustrates another schematic diagram of a compensation portion of a light-shielding film layer according to the second embodiment of the present disclosure; FIG. 2C FIG. 35 illustrates another schematic diagram of a compensation portion of a light-shielding film layer according to the second embodiment of the present disclosure;

[0079] FIG. 2F FIG. 36 illustrates another schematic diagram of a compensation portion of a light-shielding film layer according to the second embodiment of the present disclosure; FIG. 2E FIG. 37 illustrates another schematic diagram of a compensation portion of a light-shielding film layer according to the second embodiment of the present disclosure;

[0080] FIG. 3A A schematic diagram of the camera module according to the third embodiment of this disclosure is shown;

[0081] FIG. 3B Drawing according to FIG. 3A Exploded view of the imaging lens in the third embodiment;

[0082] FIG. 3C Drawing according to FIG. 3B A schematic diagram of the plastic reflective element in the third embodiment;

[0083] FIG. 3D Drawing according to FIG. 3B Another schematic diagram of the plastic reflective element in the third embodiment;

[0084] FIG. 3E Drawing according to FIG. 3B A schematic diagram of the plastic reflective element, the plastic injection molding die, and the ring-shaped marking structure in the third embodiment;

[0085] FIG. 3F Drawing according to FIG. 3D A schematic diagram of the compensation section of the light-shielding film layer in the third embodiment;

[0086] FIG. 4 A schematic diagram of the image module according to the fourth embodiment of this disclosure is shown;

[0087] FIG. 5 A schematic diagram of the image module according to the fifth embodiment of this disclosure is shown;

[0088] FIG. 6A A schematic diagram of the electronic device according to the sixth embodiment of this disclosure is shown;

[0089] FIG. 6B Drawing according to FIG. 6A Another schematic diagram of the electronic device in the sixth embodiment;

[0090] FIG. 6C Drawing according to FIG. 6A Another schematic diagram of the electronic device in the sixth embodiment;

[0091] FIG. 6D Drawing according to FIG. 6A A schematic diagram of the electronic device in the sixth embodiment;

[0092] FIG. 6E Drawing according to FIG. 6A Another image diagram of the electronic device in the sixth embodiment;

[0093] FIG. 6F Drawing according to FIG. 6A Another image illustration of the electronic device in the sixth embodiment;

[0094] FIG. 6G FIG. 1 illustrates a perspective view of an electronic device according to an embodiment of the present disclosure; FIG. 6A FIG. 2 illustrates another perspective view of an electronic device according to an embodiment of the present disclosure;

[0095] FIG. 7A FIG. 3 illustrates an application view of an electronic device according to an embodiment of the present disclosure;

[0096] FIG. 7B FIG. 4 illustrates a projection view of an electronic device according to an embodiment of the present disclosure; FIG. 7A

[0097] FIG. 8A FIG. 5 illustrates a schematic view of a light blocking film layer according to the prior art;

[0098] FIG. 8B FIG. 6 illustrates another schematic view of a light blocking film layer according to the prior art;

[0099] FIG. 8C FIG. 7 illustrates another schematic view of a light blocking film layer according to the prior art;

[0100] FIG. 8D FIG. 8 illustrates another schematic view of a light blocking film layer according to the prior art;

[0101] FIG. 8E FIG. 9 illustrates another schematic view of a light blocking film layer according to the prior art; and

[0102] FIG. 8F FIG. 10 illustrates another schematic view of a light blocking film layer according to the prior art.

[0103]

List of Symbols

[0104] 10, 20, 30: camera module

[0105] 110, 210: imaging lens

[0106] 111, 112, 113, 114, 115, 116, 211, 212, 213, 214, 215, 216, 311, 312, 313, 314: plastic lens

[0107] 121, 122, 123, 124, 125, 221, 222, 223, 224, 225, 321, 322, 323, 324: spacer element

[0108] 126, 226, 325, 326: fixing element

[0109] 130, 230, 330, 430, 530: carrier element

[0110] 140, 240: filter element​

[0111] 150, 250, 350: image sensor

[0112] 160, 260, 360, 860: light shielding film layer

[0113] 161, 261, 361: edge area

[0114] 162, 262, 362, 862: main body portion

[0115] 163, 263, 363: compensation portion

[0116] 164: tip

[0117] 165: chamfer

[0118] 171, 271, 371, 871: light transmitting surface

[0119] 172, 272, 372: optically effective area

[0120] 173, 273, 373: ring-shaped mark structure

[0121] 174: angle end

[0122] 175, 275, 375: injection mark

[0123] 380: plastic reflective element

[0124] 40, 50, 700: image module

[0125] 411, 412, 413, 414, 415, 511, 512, 513, 514, 515: lens

[0126] 450, 550, 750: image source

[0127] 510, 551, 710: lens

[0128] 580: reflective element

[0129] 60, 70: electronic device

[0130] 610: image capturing control interface

[0131] 611: image playback button

[0132] 612: camera module switching button

[0133] 613: focus and photographing button

[0134] 614: integrated menu button

[0135] 615: zoom control key

[0136] 621, 622: ultra-wide camera module

[0137] 623: super-zoom camera module

[0138] 624, 625: wide camera module

[0139] 626: zoom camera module

[0140] 627: TOF module

[0141] 628: macro camera module

[0142] 629: camera module for biometric sensing

[0143] 63: indicator light

[0144] 64: circuit board

[0145] 641: connector

[0146] 65: single wafer system

[0147] 66: focus assist element

[0148] 661: light emitting element

[0149] 701: projection surface

[0150] 720: image transfer module

[0151] S: air gap

[0152] I: inflection point

[0153] IL: imaging light

[0154] M1, M2: upper mold

[0155] M3, M4: lower mold

[0156] X: optical axis

[0157] X1: first optical axis

[0158] X2: second optical axis

[0159] P, P1, P2, P2', P3: defect

[0160] N: number of plastic lenses of the lens

[0161] ImgH: maximum image height of the lens

[0162] RI: relative illumination of the lens

[0163] HFOV: half field of view of the lens

[0164] L: extension distance of the compensation portion

[0165] Lmax: maximum extension distance of the compensation portion

[0166] A: area of the compensation portion

[0167] T: thickness of the main portion

[0168] DM: optical density of the main portion DETAILED DESCRIPTION

[0169] The present disclosure provides a camera module, which includes an imaging lens and an image sensor. The imaging lens includes a plastic optical element, wherein a light-shielding film layer is disposed on a light-transmitting surface of the plastic optical element, and the plastic optical element includes an optically effective region. Further, an edge region of the light-shielding film layer forms a specific shape around the optically effective region, so that the light-shielding film layer is used to define a light-transmitting region, and the light-transmitting region corresponds to the optically effective region. The edge region includes a main portion, wherein the main portion can be in physical contact with the light-transmitting surface, and the main portion can form the specific shape. The image sensor is disposed on an image side of the imaging lens, and the image sensor is used to define a maximum image height, and the imaging lens corresponds to the maximum image height to define a relative illumination. The roughness of the light-transmitting surface is RO, which is equal to or less than 1.2 um. The light-transmitting surface includes a ring-shaped mark structure, and the ring-shaped mark structure has an angular end, and the angular end surrounds the optically effective region. The relative illumination of the imaging lens is RI, and the optical density of the main portion is DM, which satisfies the following condition: -LOG(RI) / DM≤1.2. When -LOG(RI) / DM≤1.2 is satisfied, the light-shielding film layer has sufficient optical density for the imaging lens.

[0170] In detail, the angular end of the ring-shaped mark structure can integrally surround the optically effective region, and the ring-shaped mark structure can be used as an alignment mark when the light-shielding film layer is coated, or can be used as a reference for detecting the offset of the optically effective region or an alignment mark during assembly, but is not limited thereto. In this way, the overall optical quality of the imaging lens can be improved. In addition, the ring-shaped mark structure can further correspond to the demolding direction of the plastic injection molding mold, so that the ring-shaped mark structure is integrally formed on the plastic optical element, thereby ensuring the relative position of the ring-shaped mark structure and other elements.

[0171] Relative luminance is a ratio of intensity of peripheral light to intensity of central light when light passes through an imaging lens and converges on an imaging surface. The value of relative luminance is between 0 and 1. In detail, the ratio of intensity of peripheral light to intensity of central light can be greater than 0.1, and further can be greater than 0.2. Specifically, relative luminance corresponds to a maximum image height of an image sensor. When the image sensor is rectangular, the maximum image height can be defined as half of a diagonal length of the image sensor. When the image sensor is non-rectangular, the maximum image height can be defined as a radius of a minimum circumscribed circle of the image sensor.

[0172] Optical density refers to an intensity of blocking visible light (a common visible light range can be defined as 400 nm to 700 nm, or 380 nm to 720 nm, but is not limited thereto). The light blocking film layer can provide an optical density range of greater than or equal to 1.0 and less than or equal to 9.0, but is not limited thereto.

[0173] Specific shape refers to a non-intended shape of an edge region of the light blocking film layer in a micron scale, and the specific shape is controllable in the micron scale.

[0174] The edge region can further include a compensation portion, wherein the compensation portion is disposed adjacent to an edge of the main portion and adjacent to the optically effective region. The compensation portion is closer to the optically effective region than the main portion, the compensation portion extends toward the optically effective region, and the compensation portion has a lower optical density than the main portion. Specifically, the compensation portion has a pre-compensation function, which can eliminate random defects that can occur in the main portion and can make the edge region achieve better roundness, thereby ensuring the light blocking function of the light blocking film layer.

[0175] The compensation portion can include a tip and an inverse bevel, wherein the tip is disposed at an end away from the main portion, and the inverse bevel faces the light-transmitting surface. The inverse bevel is closer to the light-transmitting surface from the tip toward the main portion, and an air gap is formed between the inverse bevel and the light-transmitting surface. In this way, a light trap structure is formed between the compensation portion and the plastic optical element to reduce the generation of stray light.

[0176] The plastic optical element can be a plastic lens, wherein the plastic lens includes an aspheric surface, and the aspheric surface corresponds to the optically effective region. Alternatively, the plastic optical element can be a plastic reflective element, wherein the plastic reflective element includes at least one reflective surface, and the reflective surface is disposed on the same optical path as the optically effective region.

[0177] A thickness of the main portion is T, and an extension distance of the compensation portion is L, which can satisfy the following condition: 3 degrees ≤ tan -1 (T / L) ≤ 89.5 degrees. When 3 degrees ≤ tan -1 (T / L) ≤ 89.5 degrees is satisfied, the size of the compensation portion can be well controlled, thereby improving yield.

[0178] The optical concentration of the main body part is DM, and the thickness of the main body part is T, which can satisfy the following conditions: 0.7um -1 ≤DM / T≤7.2um -1 When 0.7um -1 ≤DM / T≤7.2um -1 , the main body part can reduce the thickness of the light shielding film layer while having sufficient light shielding functionality, and improve thickness uniformity. In addition, it can satisfy the following conditions: 1.6um -1 ≤DM / T≤1.95um -1 .

[0179] The extension distance of the compensation part is L, which can satisfy the following conditions: 0um<L≤32um. When 0um<L≤32um is satisfied, the formability of the compensation part can be ensured, and peeling pollution can be avoided. In addition, it can satisfy the following conditions: 0um<L≤16um. Furthermore, it can satisfy the following conditions: 0um<L≤7um.

[0180] The maximum extension distance of the compensation part is Lmax, which can satisfy the following conditions: 0um<Lmax≤32um. When 0um<Lmax≤32um is satisfied, the formability of the compensation part can be further ensured. In addition, it can satisfy the following conditions: 0um<Lmax≤16um. Furthermore, it can satisfy the following conditions: 0um<Lmax≤7um.

[0181] The maximum extension distance of the compensation part is Lmax, and the area of the compensation part is A, which can satisfy the following conditions: When is satisfied, the formability of the compensation part can be ensured, and peeling pollution can be avoided. In addition, it can satisfy the following conditions: Furthermore, it can satisfy the following conditions:

[0182] The imaging lens corresponds to a maximum image height to define a half field of view, the half field of view is HFOV, and the relative illumination of the imaging lens is RI, which can satisfy the following conditions: 0.04≤RI×sin(HFOV)≤0.35. When 0.04≤RI×sin(HFOV)≤0.35 is satisfied, the precision of the light shielding film layer has a significant impact on optical quality. In addition, it can satisfy the following conditions: 0.05≤RI×sin(HFOV)≤0.3. Furthermore, it can satisfy the following conditions: 0.1≤RI×sin(HFOV)≤0.2.

[0183] The thickness of the main body portion is T, which satisfies the following condition: 0.14 um ≤ T ≤ 9.85 um. A sufficiently thin thickness can avoid the light shielding film layer from accumulating during molding, thereby improving the thickness uniformity of the light shielding film layer. In addition, the thickness of the main body portion satisfies the following condition: 0.28 um ≤ T ≤ 4.95 um. Furthermore, the thickness of the main body portion satisfies the following condition: 0.48 um ≤ T ≤ 1.95 um.

[0184] The roughness of the light transmitting surface is RO, and the roughness of the main body portion is RM, which satisfies the following condition: 0 ≤ |1-RO / RM| ≤ 0.6. When 0 ≤ |1-RO / RM| ≤ 0.6 is satisfied, the thickness uniformity can be further controlled. It should be noted that the roughness RO of the light transmitting surface and the roughness RM of the main body portion are both measured by the statistical method of Ra in the present disclosure.

[0185] The thickness of the main body portion is T, and the maximum extension distance of the compensation portion is Lmax, which satisfies the following condition: 3 degrees ≤ tan -1 (T / Lmax) ≤ 89.5 degrees. When 3 degrees ≤ tan -1 (T / Lmax) ≤ 89.5 degrees is satisfied, the light shielding function of the light shielding film layer can be further ensured.

[0186] The technical features of the camera module of the present disclosure described above can be combined to achieve the corresponding effects.

[0187] The present disclosure provides an electronic device comprising at least one of the camera modules described above.

[0188] The present disclosure provides an image module comprising a lens and an image source, wherein the lens comprises a plastic lens, and the image source is disposed on the light entering side of the lens. A light shielding film layer is disposed on a light transmitting surface of the plastic lens, and the plastic lens comprises an optically effective region. An edge region of the light shielding film layer forms a specific shape around the optically effective region, so that the light shielding film layer defines a light passing region corresponding to the optically effective region. The roughness of the light transmitting surface is RO, which is equal to or less than 1.2 um. The light transmitting surface comprises a ring-shaped marking structure having an angular end, and the angular end surrounds the optically effective region. The edge region comprises a main body portion forming the specific shape. A thickness of the main body portion is T, and the optical density of the main body portion is DM, which satisfies the following conditions: 0.14 um ≤ T ≤ 9.85 um; and 0.7 um -1 ≤ DM / T ≤ 7.2 um -1 .

[0189] Specifically, the image module can be a single group lens or a multi-group lens, and the light from the image source entering the lens can be converged or diverged.

[0190] The image source can be a liquid crystal display (LCD), a digital light processing (DLP), a laser light source, an ultraviolet light source, or an infrared light source. The image source can further include optical elements such as a lens array, a light homogenizer, a glass sheet, and an image transfer module. The image transfer module can be a waveguide or a light path turning mirror group, but is not limited thereto.

[0191] The lens can further include a glass lens. The glass lens is closer to the image source than the plastic lens. In this way, the optical properties of the plastic lens can be ensured to be less affected by the waste heat of the image source, thereby ensuring the optical quality of the lens.

[0192] The lens can further include a reflective element. In detail, the lens includes the reflective element and the plastic lens in order from the light-in side to the light-out side. The reflective element can reduce the total height of the image module, thereby facilitating miniaturization and enabling application to a head-mounted device, but is not limited thereto.

[0193] The optically effective region of the light-transmitting surface can be an aspheric surface. The aspheric surface includes at least one inflection point.

[0194] The optical concentration of the main body portion is DM, and the thickness of the main body portion is T. The following condition can be satisfied: 1.6 um -1 ≤ DM / T ≤ 1.95 um -1 .

[0195] The roughness of the light-transmitting surface is RO, and the roughness of the main body portion is RM. The following condition can be satisfied: 0 ≤ |1-RO / RM| ≤ 0.6.

[0196] The technical features of the image module described above can be combined to achieve the corresponding effects.

[0197] The present disclosure provides an electronic device including at least one of the image modules described above.

[0198] Overall, the camera module and the image module according to the present disclosure can improve the thickness uniformity of the light shielding film layer, enable the light-transmitting surface physically contacted by the light shielding film layer to have a low surface roughness, and avoid the light shielding film layer from being uneven in thickness at the micron scale, thereby reducing the risk of light penetrating through the thinner part of the light shielding film layer. Furthermore, the surface of the light shielding film layer can also have a low surface roughness, thereby further ensuring the thickness uniformity of the light shielding film layer. In addition, the thinner light shielding film layer can overcome the aggregation of the light shielding film layer, thereby further improving the thickness uniformity of the light shielding film layer.

[0199] Further, the light blocking film layer has excellent optical density. Further, when the optical density of the main body is O.D., and the thickness of the main body is T, the following conditions are satisfied: 1.0≤O.D.≤9; and 0.14um≤T≤9.85um. Under the above conditions, the light intensity of the light transmitted through the light blocking film layer is I(out), and the light intensity of the light entering the light blocking film layer is I(in), wherein O.D. is defined as -log(I(out) / I(in)).

[0200] Specifically, the method for measuring the optical density is as follows.

[0201] First, embed the plastic optical element with the light blocking film layer in a transparent plastic to form a quasi-test piece.

[0202] Second, plan an entrance surface and an exit surface on the quasi-test piece, so that the light beam can sequentially pass through the entrance surface, the light blocking film layer, and the exit surface. The entrance surface and the exit surface can be cut, ground, and polished as necessary to form a test piece. In general, the entrance surface and the exit surface are parallel and have a roughness of less than 0.5um. It should be noted that the roughness is measured by the Ra statistical method. Under the condition that the light blocking film layer can be exposed to the entrance surface, the light beam passes through the entrance surface and the light blocking film layer and then passes through the exit surface. The above-mentioned allowable conditions are, for example, a flat and large enough light blocking film layer.

[0203] Third, prepare a control piece made of the aforementioned transparent plastic, which has a similar configuration and surface topography as the test piece, but does not embed the optical element.

[0204] Fourth, place the control piece between a light emitting end and a receiving end, and scan the control piece in the visible light range (i.e. 400nm to 700nm) with a scanning interval of 1nm, 5nm, 10nm, or 0.5nm, 0.1nm, but not limited thereto. The light beam from the light emitting end sequentially passes through the entrance surface and the exit surface, and is then received by the receiving end to obtain intensity information, and the intensity information is averaged to obtain I(in).

[0205] Fifth, place the test piece between the light emitting end and the receiving end, and scan the test piece in the visible light range (i.e. 400nm to 700nm) with a scanning interval of 1nm, 5nm, 10nm, or 0.5nm, 0.1nm, but not limited thereto. The light beam from the light emitting end sequentially passes through the entrance surface, the light blocking film layer, and the exit surface, and is then received by the receiving end to obtain intensity information, and the intensity information is averaged to obtain I(out).

[0206] Sixth, perform mathematical operations on I(in) and I(out) to obtain the numerical value of the optical density.

[0207] According to the above features, the light shielding film layer of the present disclosure has the characteristics of precise control, which can be used to describe the controllable light shielding range, film layer thickness, film layer uniformity, and other dimensions of the light shielding film layer in the micron scale.

[0208] Referring to Table 1, which is experimental data of the lens coated with the light shielding film layer of the present disclosure, the number of plastic lenses of the lens is N, the maximum image height of the lens is ImgH, the relative luminance of the lens is RI, and the half field of view of the lens is HFOV. It should be noted that the light shielding film layer is coated on at least one of the N plastic lenses, and serial numbers 1 to 35 and 37 to 39 are embodiments of the present disclosure, and serial number 36 is a comparative example. As can be seen from Table 1, except for serial number 36, the stray light performance of the remaining serial numbers is sensitive to the dimensional accuracy of the light shielding film layer and shows excellent relative luminance and half field of view. It should be noted that serial number 36 has no significant effect on the control of stray light, because serial number 36 has a larger relative luminance compared to other lenses with a half field of view greater than 60 degrees (such as serial number 04, serial number 05), so that the negative impact of the lens of serial number 36 on the relative luminance under the condition of excessive light shielding of the light shielding film layer is relatively low compared to other serial numbers.

[0209]

[0210]

[0211] According to the above embodiments, the following specific embodiments are proposed and described in detail with reference to the accompanying drawings.

[0212] <First Embodiment>

[0213] Referring to FIGS. 1A-1C , wherein FIG. 1A a schematic diagram of the camera module 10 according to the first embodiment of the present disclosure is shown, FIG. 1B a perspective view of the imaging lens 110 according to the first embodiment of the present disclosure is shown, FIG. 1A a perspective view of the imaging lens 110 according to the first embodiment of the present disclosure is shown, FIG. 1C a perspective view of the imaging lens 110 according to the first embodiment of the present disclosure is shown, FIG. 1B a perspective view of the imaging lens 110 according to the first embodiment of the present disclosure is shown, FIGS. 1A-1C It can be seen that the camera module 10 includes an imaging lens 110, a carrier element 130, a filter element 140, and an image sensor 150, wherein an optical axis X passes through the imaging lens 110, and the image sensor 150 is disposed on the image side of the imaging lens 110.

[0214] The imaging lens 110, from the object side to the image side, sequentially includes a plastic lens 111, a spacer element 121, a plastic lens 112, a spacer element 122, a plastic lens 113, a spacer element 123, a plastic lens 114, a spacer element 124, a plastic lens 115, a spacer element 125, a plastic lens 116, and a fixing element 126. The plastic lenses 111, 112, 113, 114, 115, 116, spacers 121, 122, 123, 124, 125, and fixing element 126 are housed within the carrier element 130. It must be noted that the number, structure, surface shape, and other optical characteristics of the plastic lenses and other optical elements can be configured according to different imaging requirements and are not limited thereto.

[0215] Please refer to FIG. 1D and FIG. 1E ,in FIG. 1D Drawing according to FIG. 1C A schematic diagram of the plastic lens 111 in the first embodiment. FIG. 1E Drawing according to FIG. 1D A schematic diagram of the light-shielding film layer 160 in the first embodiment. (From...) FIGS. 1B-1E As can be seen, the light-shielding film layer 160 is disposed on a light-transmitting surface 171 of the plastic lens 111, and the plastic lens 111 includes an optically effective area 172 and an injection molding mark 175. An edge region 161 of the light-shielding film layer 160 forms a specific shape around the optically effective area 172, so that the light-shielding film layer 160 defines a light-transmitting area corresponding to the optically effective area 172. The injection molding mark 175 is disposed on the outer periphery of the plastic lens 111 (not shown in the figure). It must be noted that, to clearly show the position and extent of the light-shielding film layer 160, FIG. 1D The thickness of the 160mm medium-shading film layer is not the actual thickness.

[0216] Furthermore, the light-transmitting surface 171 includes an annular marking structure 173, wherein the annular marking structure 173 has an angled end 174 surrounding the optically effective region 172. The plastic lens 111 includes an aspherical surface, and the aspherical surface corresponds to the optically effective region 172. In detail, the annular marking structure 173 may be integrally formed around the optically effective region 172, and the annular marking structure 173 may serve as an alignment mark and boundary when the light-shielding film layer 160 is applied, or as a reference for detecting the offset of the optically effective region 172, or as an alignment mark during assembly, but is not limited thereto. This improves the overall optical quality of the imaging lens 110.

[0217] Please refer to FIGS. 1F-1H ,in FIG. 1F Drawing according to FIG. 1E A schematic diagram of the light-shielding film layer 160 in the first embodiment. FIG. 1G and FIG. 1H Drawing according to FIG. 1EA schematic diagram of the compensation portion 163 of the light-shielding film layer 160 in the first embodiment. (From...) FIGS. 1F-1H It is understood that the edge region 161 includes a main body 162 and a compensation part 163, wherein the main body 162 is in solid contact with the light-transmitting surface 171, the main body 162 forms a specific shape, and the compensation part 163 is disposed at the edge of the main body 162 adjacent to the optically effective region 172.

[0218] Specifically FIG. 1G The compensation section 163 can improve, for example FIG. 8C Defect P in the prior art FIG. 1H The compensation section 163 can improve, for example FIG. 8D The defect P in the prior art. Therefore, the compensation part 163 has the function of pre-compensation, which can eliminate random defects that may occur in the main body part 162, and can make the edge area 161 achieve better roundness, thereby ensuring the light-shielding function of the light-shielding film layer 160.

[0219] The extension distance of the compensation section 163 is L, the maximum extension distance of the compensation section 163 is Lmax, and the area of ​​the compensation section 163 is A. FIG. 1G of It is 0.7.

[0220] Please refer to FIGS. 1I-1N ,in FIG. 1I Drawing according to FIG. 1E A schematic diagram of the parameters of the light-shielding film layer 160 in the first embodiment of the first implementation method. FIG. 1J Drawing according to FIG. 1E A schematic diagram of the parameters of the light-shielding film layer 160 in the second embodiment of the first embodiment. FIG. 1K Drawing according to FIG. 1E A schematic diagram of the parameters of the light-shielding film layer 160 in the third embodiment of the first embodiment. FIG. 1L Drawing according to FIG. 1E A schematic diagram of the parameters of the light-shielding film layer 160 in the fourth embodiment of the first embodiment. FIG. 1M Drawing according to FIG. 1E A schematic diagram of the parameters of the light-shielding film layer 160 in the fifth embodiment of the first embodiment. FIG. 1N Drawing according to FIG. 1E A schematic diagram of the parameters of the light-shielding film layer 160 in the sixth embodiment of the first embodiment. FIGS. 1I-1N It is known that the compensation section 163 is closer to the optically effective region 172 than the main body section 162, the compensation section 163 extends in the direction closer to the optically effective region 172, and the compensation section 163 has a lower optical density than the main body section 162.

[0221] Please refer to FIGS. 1O-1V ,in FIG. 1O Drawing according to FIG. 1EA schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1P A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1E A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1Q A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1E A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1R A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1E A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1S A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1E A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1T A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1E A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1U A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1E A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment, FIG. 1V A schematic diagram of parameters of the light shielding film layer 160 in the seventh embodiment of the first embodiment. FIG. 1E It can be known that the compensation portion 163 extends toward the direction close to the optical effective area 172, the compensation portion 163 comprises a tip 164 and an inverse bevel 165, wherein the tip 164 is arranged at one end away from the main body portion 162, the inverse bevel 165 faces the light transmission surface 171, the inverse bevel 165 is close to the light transmission surface 171 from the tip 164 toward the direction close to the main body portion 162, and an air layer S is formed between the inverse bevel 165 and the light transmission surface 171. In this way, a light trap structure is formed between the compensation portion 163 and the plastic lens 111 to reduce the generation of stray light. FIGS. 1O-1V The thickness of the main body portion 162 is T, and the extension distance of the compensation portion 163 is L, wherein

[0222] The numerical value of satisfies the following two conditions. FIGS. 1I-1V

[0223] In the first embodiment, the image sensor 150 is used to define a maximum image height, the imaging lens 110 corresponding to the maximum image height is used to define a relative illumination and a half field of view, the maximum image height of the camera module 10 is ImgH, the relative illumination of the imaging lens 110 is RI, and the half field of view is HFOV; the optical concentration of the main body portion 162 is DM; the thickness of the main body portion 162 is T; the roughness of the main body portion 162 is RM; the roughness of the light transmission surface 171 is RO, and the parameters satisfy the following three conditions.

[0224]

[0225] ​

[0226] <Second Implementation>

[0227] Please refer to FIGS. 2A-2C ,in FIG. 2A A schematic diagram of the camera module 20 according to the second embodiment of this disclosure is shown. FIG. 2B Drawing according to FIG. 2A A perspective view of the imaging lens 210 in the second embodiment. FIG. 2C Drawing according to FIG. 2B An exploded view of the imaging lens 210 in the second embodiment. FIGS. 2A-2C It is known that the camera module 20 includes an imaging lens 210, a carrier element 230, a filter element 240 and an image sensor 250, wherein an optical axis X passes through the imaging lens 210 and the image sensor 250 is disposed on the image side of the imaging lens 210.

[0228] The imaging lens 210, from the object side to the image side, sequentially includes a plastic lens 211, a spacer element 221, a plastic lens 212, a spacer element 222, a plastic lens 213, a spacer element 223, a plastic lens 214, a spacer element 224, a plastic lens 215, a spacer element 225, a plastic lens 216, and a fixing element 226. The plastic lenses 211, 212, 213, 214, 215, 216, spacers 221, 222, 223, 224, 225, and fixing element 226 are housed within the carrier element 230. It must be noted that the number, structure, surface shape, and other optical characteristics of the plastic lenses and other optical elements can be configured according to different imaging requirements and are not limited thereto.

[0229] Please refer to FIG. 2D and FIG. 2E ,in FIG. 2D Drawing according to FIG. 2C A schematic diagram of the plastic lens 216 in the second embodiment. FIG. 2E Drawing according to FIG. 2C Another schematic diagram of the plastic lens 216 in the second embodiment. (From...) FIGS. 2B-2E As can be seen, the light-shielding film layer 260 is disposed on a light-transmitting surface 271 of the plastic lens 216, and the plastic lens 216 includes an optically effective area 272 and an injection molding mark 275. An edge region 261 of the light-shielding film layer 260 forms a specific shape around the optically effective area 272, so that the light-shielding film layer 260 defines a light-transmitting area corresponding to the optically effective area 272. The injection molding mark 275 is disposed on the outer periphery of the plastic lens 216 (not shown in the figure). It must be noted that, to clearly show the position and extent of the light-shielding film layer 260, FIG. 2D The thickness of the 260mm medium-shading film layer is not the actual thickness.

[0230] Furthermore, the light-transmitting surface 271 comprises a ring-shaped mark structure 273 and two inflection points I, wherein the plastic lens 216 comprises an aspheric surface, and the aspheric surface corresponds to the optically effective area 272. In detail, the ring-shaped mark structure 273 can be integrally formed around the optically effective area 272, and the ring-shaped mark structure 273 can serve as an alignment mark and a boundary when the light-shielding film layer 260 is coated, and can also serve as a reference for detecting the offset of the optically effective area 272 or an alignment mark during assembly, but is not limited thereto. In this way, the overall optical quality of the imaging lens 210 can be improved.

[0231] Please refer to FIG. 2F which shows a schematic diagram of the compensation portion 263 of the light-shielding film layer 260 according to FIG. 2E the second embodiment. As can be seen from FIGS. 2D-2F , the edge area 261 comprises a main portion 262 and a compensation portion 263, wherein the main portion 262 is in physical contact with the light-transmitting surface 271, the main portion 262 has a specific shape, and the compensation portion 263 is arranged at the edge of the main portion 262 adjacent to the optically effective area 272.

[0232] In detail, FIG. 2F the compensation portion 263 of the light-shielding film layer 260 can improve the defects P as FIG. 8E in the prior art. In this way, the compensation portion 263 has a pre-compensation function, which can eliminate random defects that may occur in the main portion 262, thereby ensuring the light-shielding function of the light-shielding film layer 260.

[0233] In the second embodiment, the image sensor 250 is used to define a maximum image height, and the imaging lens 210 corresponding to the maximum image height is used to define a relative illumination and a half field of view, the maximum image height of the camera module 20 is ImgH, the relative illumination of the imaging lens 210 is RI, and the half field of view is HFOV; the optical density of the main portion 262 is DM; the thickness of the main portion 262 is T; the roughness of the main portion 262 is RM; the roughness of the light-transmitting surface 271 is RO, and the parameters satisfy the following four conditions.

[0234]

[0235] It should be noted that the second embodiment and the first embodiment are the same camera module system, and the first embodiment and the second embodiment are used to illustrate the case of arranging the light-shielding film layer on different plastic lenses.

[0236] In addition, the structures and configuration relationships of the remaining elements of the second embodiment and the first embodiment are the same, and will not be described again here.

[0237] <Third Embodiment>

[0238] Please refer to FIG. 3A and FIG. 3B , whereinFIG. 3A A schematic diagram of the camera module 30 according to the third embodiment of this disclosure is shown. FIG. 3B Drawing according to FIG. 3A An exploded view of the imaging lens in the third embodiment. FIG. 3A and FIG. 3B As can be seen, the camera module 30 includes an imaging lens (not shown), a carrier element 330 and an image sensor 350, wherein the image sensor 350 is disposed on the image side of the imaging lens.

[0239] The imaging lens, from the object side to the image side, sequentially includes a plastic lens 311, spacers 321 and 322, a plastic lens 312, a spacer 323, a plastic lens 313, a spacer 324, a plastic lens 314, a fixing element 325, a plastic reflective element 380, and a fixing element 326. The plastic lenses 311, 312, 313, 314, spacers 321, 322, 323, 324, fixing elements 325 and 326, and the plastic reflective element 380 are housed within the carrier element 330. It must be noted that the number, structure, surface shape, and other optical characteristics of the plastic lenses and other optical elements can be configured according to different imaging requirements and are not limited thereto.

[0240] Specifically, light passes sequentially along the first optical axis X1 through plastic lens 311, spacer elements 321, 322, plastic lens 312, spacer element 323, plastic lens 313, spacer element 324, plastic lens 314, and fixing element 325, and plastic reflective element 380 is used to deflect the light so that the light enters the image sensor 350 along the second optical axis X2.

[0241] Please refer to FIG. 3C and FIG. 3D ,in FIG. 3C Drawing according to FIG. 3B A schematic diagram of the plastic reflective element 380 in the third embodiment. FIG. 3D Drawing according to FIG. 3B Another schematic diagram of the reflective surface 381 of the plastic reflective element 380 in the third embodiment. FIG. 3C and FIG. 3D As can be seen, the light-shielding film layer 360 is disposed on a light-transmitting surface 371 of the plastic reflective element 380, and the plastic reflective element 380 includes an optically effective area 372, an injection molding mark 375, and at least one reflective surface 381. An edge region 361 of the light-shielding film layer 360 forms a specific shape around the optically effective area 372, so that the light-shielding film layer 360 defines a light-transmitting area corresponding to the optically effective area 372. The injection molding mark 375 is disposed on the outer periphery of the plastic reflective element 380 (not shown in the figure), and the reflective surface 381 and the optically effective area 372 are disposed on the same optical path. It must be noted that, for clear illustration of the position and extent of the light-shielding film layer 360,FIG. 3D The thickness of the light-shielding film layer 360 is not the actual thickness.

[0242] Please refer to FIG. 3E which illustrates a schematic diagram of the plastic reflective element 380, the plastic injection molding mold and the annular mark structure 373 according to the third embodiment. FIG. 3B As shown in FIG. 3B, the plastic reflective element 380 comprises a light- transmitting surface 371 and a light-shielding film layer 360 disposed on the light-transmitting surface 371. FIG. 3D As shown in FIG. 3B, the light-transmitting surface 371 comprises an annular mark structure 373. FIG. 3E As shown in FIG. 3B, the light-transmitting surface 371 comprises an annular mark structure 373.

[0243] Please refer to FIG. 3F which illustrates a schematic diagram of the plastic reflective element 380, the plastic injection molding mold and the annular mark structure 373 according to the third embodiment. FIG. 3D As shown in FIG. 3B, the plastic reflective element 380 comprises a light- transmitting surface 371 and a light-shielding film layer 360 disposed on the light-transmitting surface 371. FIG. 3D As shown in FIG. 3B, the light-transmitting surface 371 comprises an annular mark structure 373. FIG. 3F As shown in FIG. 3B, the light-transmitting surface 371 comprises an annular mark structure 373.

[0244] Specifically, the compensation portion 363 of the light-shielding film layer 360 can improve the defects P in the prior art. FIG. 3F As shown in FIG. 3B, the light-transmitting surface 371 comprises an annular mark structure 373. FIG. 8F As shown in FIG. 3B, the light-transmitting surface 371 comprises an annular mark structure 373.

[0245] The maximum extension distance of the compensation portion 363 is Lmax, the area of the compensation portion 363 is A, and the thickness of the main portion 362 is T, wherein FIG. 3F As shown in FIG. 3B, the light-transmitting surface 371 comprises an annular mark structure 373. As shown in FIG. 3B, the light-transmitting surface 371 comprises an annular mark structure 373. -1 (T / Lmax) is 17.6 degrees.

[0246] In the third embodiment, the image sensor 350 is configured to define a maximum image height, and the imaging lens is configured to define a relative illumination and a half field of view, wherein the maximum image height of the camera module 30 is ImgH, the relative illumination of the imaging lens is RI, and the half field of view is HFOV. The optical density of the main portion 362 is DM. The thickness of the main portion 362 is T. The maximum extension distance of the compensation portion 363 is Lmax. The roughness of the main portion 362 is RM. The roughness of the light-transmitting surface 371 is RO. The area of the compensation portion 363 is A. The parameters satisfy the following five conditions.

[0247]

[0248] In addition, the maximum extension distance Lmax of the compensation portion 363 and the thickness T of the main portion 362 in the third embodiment can be the extension distance L and the thickness T of any one of the embodiments in the first embodiment, but are not limited thereto.

[0249] <Fourth Embodiment>

[0250] Please refer to FIG. 4 which shows a schematic diagram of the image module 40 according to the fourth embodiment of the present disclosure. As shown in FIG. 4 , the image module 40 comprises a lens (not shown in the figure) and an image source 450, wherein the image source 450 is arranged on the light-incoming side of the lens, and the image is projected on a projection surface (not shown in the figure) through the lens.

[0251] In detail, the image module 40 is a single lens group, and the light from the image source 450 can be converged or diverged after entering the lens. The image module 40 can further comprise an image transmission module (not shown in the figure), wherein the image transmission module can be a waveguide or a light path turning mirror group, but is not limited thereto. The image source 450 can be an LCD, a DLP, a laser light source, an ultraviolet light source, or an infrared light source, and the image source 450 can further comprise a lens array, a light homogenizing sheet, a glass sheet, and other optical elements, but is not limited thereto.

[0252] The lens comprises, in order from the light-incoming side to the light-outgoing side, lenses 411, 412, 413, 414, and 415, wherein the lenses 411, 412, 413, 414, and 415 are arranged in a carrier element 430. In addition, the lens 411 is a glass lens, and the lens 413 is a plastic lens, wherein the lens 411 is closer to the image source 450 than the lens 413. In this way, the influence of the waste heat of the image source 450 on the optical properties of the plastic lens can be reduced to ensure the optical quality of the lens. It should be noted that the number, structure, surface shape, and other optical characteristics of the lenses and the optical elements can be configured according to different imaging requirements, and are not limited thereto.

[0253] Further, a light blocking film layer (not shown) is disposed on a light transmitting surface (not shown) of the lens 413, and the lens 413 includes an optically effective area (not shown), wherein an edge area (not shown) of the light blocking film layer is formed in a specific shape around the optically effective area, so that the light blocking film layer is used to define a light transmitting area, and the light transmitting area corresponds to the optically effective area. Specifically, the edge area includes a main body (not shown), and the main body is formed in a specific shape.

[0254] The light transmitting surface includes a ring-shaped mark structure (not shown), wherein the ring-shaped mark structure has an angular end, the angular end surrounds the optically effective area, the optically effective area of the light transmitting surface is an aspheric surface, and the aspheric surface includes at least one inflection point.

[0255] In addition, the light blocking film layer and other elements in the fourth embodiment are the same as the structure and configuration relationship of any light blocking film layer and other corresponding elements in the first embodiment, and will not be described here.

[0256] < Fifth Embodiment >

[0257] Please refer to FIG. 5 , which shows a schematic diagram of an image module 50 according to the fifth embodiment of the present disclosure. As can be seen from FIG. 5 , the image module 50 includes a lens 510, 551 and an image source 550, wherein the image source 550 is disposed on the light entering side of the lens 510, and the lens 551 is used to control the illumination range of the image source 550.

[0258] In detail, the image module 50 is a multi-group lens, and the light from the image source 550 entering the lens can be converged or diverged. The image module 50 can further include an image transmission module (not shown), wherein the image transmission module can be a waveguide or a light path turning mirror group, but is not limited thereto. The image source 550 can be an LCD, a DLP, a laser light source, an ultraviolet light source or an infrared light source, and the image source 550 can further include lens arrays, light homogenizing sheets, glass sheets and other optical elements, but is not limited thereto.

[0259] The lens 510 includes, in order from the light entering side to the light exiting side, lenses 511, 512, 513, 514 and 515, wherein the lenses 511, 512, 513, 514 and 515 are disposed in a carrier element 530. Further, the lens 511 is a glass lens, and the lens 513 is a plastic lens, wherein the lens 511 is closer to the image source 550 than the lens 513. In this way, the influence of the waste heat of the image source 550 on the optical properties of the plastic lens can be reduced to ensure the optical quality of the lens. It should be noted that the number, structure, surface shape and other optical characteristics of the lenses and various optical elements can be configured according to different imaging needs, and are not limited thereto.

[0260] The lens 510 further includes a reflective element 580. Specifically, the lens 510 includes, in order from the light-incoming side to the light-outgoing side, the reflective element 580 and the lenses 511, 512, 513, 514, and 515, and the reflective element 580 is disposed between the lens 551 and the lens 511 of the lens 510. In this way, the size of the image module 50 in a direction can be controlled.

[0261] Furthermore, a light-shielding film layer (not shown) is disposed on a light-transmitting surface (not shown) of the lens 513, and the lens 513 includes an optically effective region (not shown), wherein an edge region (not shown) of the light-shielding film layer is formed in a specific shape around the optically effective region, so that the light-shielding film layer is used to define a light-transmitting region, and the light-transmitting region corresponds to the optically effective region. Specifically, the edge region includes a main body portion (not shown), and the main body portion is formed in the specific shape.

[0262] The light-transmitting surface includes a ring-shaped mark structure (not shown), wherein the ring-shaped mark structure has an angular end that surrounds the optically effective region, the optically effective region of the light-transmitting surface is an aspheric surface, and the aspheric surface includes at least one inflection point.

[0263] In addition, the light-shielding film layer and other elements in the fifth embodiment are the same as the structures and configuration relationships of the light-shielding film layer and other corresponding elements in any one of the first embodiment and the fourth embodiment, and will not be described again here.

[0264] < SIXTH EMBODIMENT >

[0265] Please refer to FIGS. 6A-6C , wherein FIG. 6A a schematic diagram of an electronic device 60 according to a sixth embodiment of the present disclosure is shown, FIG. 6B a schematic diagram of the electronic device 60 according to FIG. 6A the sixth embodiment is shown, FIG. 6C another schematic diagram of the electronic device 60 according to FIG. 6A the sixth embodiment is shown. As can be seen, FIGS. 6A-6C the electronic device 60 is a smart phone, but the electronic device 60 can also be a notebook computer, a tablet computer, a driving recorder, etc., but is not limited thereto. The electronic device 60 includes at least one camera module, an electronic photosensitive element (not shown), and an image capturing control interface 610, wherein the camera module includes an imaging lens (not shown) and an image sensor (not shown). Specifically, the camera module can be the camera module of the first embodiment to the third embodiment, but the present disclosure is not limited thereto.

[0266] In the sixth embodiment, the electronic device 60 comprises a super wide-angle camera module 621, 622, a super telephoto camera module 623, a wide-angle camera module 624, 625, a telephoto camera module 626, a TOF module (Time-Of-Flight) 627, a macro camera module 628 and a biometric sensing camera module 629. The TOF module 627 and the biometric sensing camera module 629 can also be other types of camera modules and are not limited to this configuration.

[0267] In detail, in the sixth embodiment, the super wide-angle camera module 621, the wide-angle camera module 624, the TOF module 627 and the biometric sensing camera module 629 are disposed on the front side of the electronic device 60, while the super wide-angle camera module 622, the super telephoto camera module 623, the wide-angle camera module 625, the telephoto camera module 626 and the macro camera module 628 are disposed on the back side of the electronic device 60.

[0268] The image capturing control interface 610 can be a touch screen for displaying images and having touch functions, and can be used to manually adjust the shooting angle. In detail, the image capturing control interface 610 comprises an image playback button 611, a camera module switching button 612, a focus shooting button 613, an integrated menu button 614 and a zoom control button 615. Further, the user enters the shooting mode through the image capturing control interface 610 of the electronic device 60, the camera module switching button 612 can freely switch one of the super wide-angle camera module 621, 622, the super telephoto camera module 623, the wide-angle camera module 624, 625, the telephoto camera module 626 and the macro camera module 628 to shoot, the zoom control button 615 is used to adjust the zoom, the focus shooting button 613 is used to take pictures after the scene is taken and it is determined that one of the super wide-angle camera module 621, 622, the super telephoto camera module 623, the wide-angle camera module 624, 625, the telephoto camera module 626 and the macro camera module 628 is used to take pictures, the image playback button 611 allows the user to view the photos after taking pictures, and the integrated menu button 614 is used to adjust the details (such as timed shooting, shooting ratio, etc.) when taking pictures.

[0269] The electronic device 60 can further comprise a prompt light 63 disposed on the front side of the electronic device 60 and can be used to prompt the user of unread messages, missed calls and phone status.

[0270] Further, after the user enters the shooting mode through the image capturing control interface 610 of the electronic device 60, the camera module collects the imaging light on the electronic photosensitive element and outputs the electronic signal related to the image to the image signal processor (not shown in the figure) of the single-chip system 65. The single-chip system 65 can further include a random access memory (RAM), a central processing unit and a storage unit (Storage Unit), and can further include but not limited to a display unit (Display), a control unit (Control Unit), a read-only memory (ROM) or a combination thereof.

[0271] According to the camera specifications of the electronic device 60, the electronic device 60 can further include an optical anti-shake component (not shown in the figure) and an image software processor (not shown in the figure). Further, the electronic device 60 can further include at least one focusing auxiliary element 66 and at least one sensing element (not shown in the figure). The focusing auxiliary element 66 can include a color temperature compensation light emitting element 661, an infrared distance measuring element (not shown in the figure), a laser focusing module (not shown in the figure), etc. The sensing element can have the function of sensing physical momentum and action energy, such as an accelerometer, a gyroscope, a Hall Effect Element, a position locator, a signal emitting module, to sense the shaking and shaking applied by the user's hand or the external environment, thereby facilitating the automatic focusing function of the camera module configuration in the electronic device 60 and the play of the optical anti-shake component, to obtain good imaging quality, which helps the electronic device 60 according to the present disclosure to have multiple shooting modes, such as optimized selfie, low light source HDR (High Dynamic Range, high dynamic range imaging), high resolution 4K (4K Resolution) video recording, etc. In addition, the user can directly view the shooting picture of the camera from the image capturing control interface 610 and manually operate the framing range on the image capturing control interface 610 to achieve the seen is the obtained automatic focusing function.

[0272] Furthermore, the camera module, electronic image sensor, optical image stabilization assembly, sensing element, and focus assist element 66 can be mounted on a circuit board 64 and electrically connected to related components such as an image signal processor via a connector 641 to execute the shooting process. The circuit board 64 can be a flexible printed circuit board (FPC). Current electronic devices, such as smartphones, tend to be thinner and lighter. Mounting the camera module and related components on a circuit board and then using connectors to integrate the circuitry onto the mainboard of the electronic device satisfies the structural design and circuit layout requirements of the limited internal space of the electronic device, providing greater flexibility. It also allows for more flexible control of the camera module's autofocus function through the device's touchscreen. In the sixth embodiment, the sensing element and focus assist element 66 are mounted on a flexible circuit board (not shown) and electrically connected to related components such as an imaging signal processing element via corresponding connectors to execute the shooting process. In other embodiments (not shown), the sensing element and auxiliary optical element can also be mounted on the mainboard of the electronic device or other types of carrier boards, depending on the structural design and circuit layout requirements.

[0273] Please refer to FIG. 6D Its drawing is based on FIG. 6A A schematic image of the electronic device 60 in the sixth embodiment. FIG. 6D It is known that the imaging results of ultra-wide-angle camera modules 621 and 622 can have a larger angle of view and depth of field than those of wide-angle camera modules 624 and 625, but are often accompanied by greater distortion. Specifically, FIG. 6D The angle of view is 105 to 125 degrees, and the equivalent focal length is 11 mm to 14 mm.

[0274] Please refer to FIG. 6E Its drawing is based on FIG. 6A Another schematic image of the electronic device 60 in the sixth embodiment. FIG. 6E It can be seen that the wide-angle camera modules 624 and 625 can capture images within a certain range with high resolution and low distortion. Specifically, FIG. 6E for FIG. 6D Enlarged portion of the image. FIG. 6E The field of view is 70 to 90 degrees, and the equivalent focal length is 22mm to 30mm.

[0275] Please refer to FIG. 6F Its drawing is based on FIG. 6A Another schematic image of the electronic device 60 in the sixth embodiment. FIG. 6FIt can be seen that the imaging result of the telephoto camera module 626 can have a smaller angle of view and depth of field than that of the wide-angle camera modules 624 and 625, and can be used to photograph moving targets. That is, the actuator (not shown in the figure) of the electronic device 60 can drive the telephoto camera module 626 to perform fast and continuous autofocus on the target, so that the target does not become blurry as it moves away from the focus position. Specifically, FIG. 6F for FIG. 6E Enlarged portion of the image. FIG. 6F The angle of view is 10 to 40 degrees, and the equivalent focal length is 60mm to 300mm.

[0276] Please refer to FIG. 6G Its drawing is based on FIG. 6A Another schematic image of the electronic device 60 in the sixth embodiment. FIG. 6G It is known that the super telephoto camera module 623 produces an image with a smaller angle of view and depth of field than the telephoto camera module 626, making it more prone to defocusing due to camera shake. Therefore, the actuator provides a driving force to focus the super telephoto camera module 623 on the target object while simultaneously providing a feedback force to correct shake and achieve optical image stabilization. Specifically, FIG. 6G for FIG. 6E Enlarged portion of the image. FIG. 6G The angle of view is 4 to 8 degrees, and the equivalent focal length is 400mm to 600mm.

[0277] Depend on FIGS. 6D-6G It is understood that by using camera modules with different focal lengths for framing and combining them with image processing technology, zoom functionality can be achieved in the electronic device 60. It must be noted that the equivalent focal length is a calculated estimate and may differ from the actual focal length due to variations in the camera module design and the size of the electronic image sensor.

[0278] <Seventh Implementation>

[0279] Please refer to FIG. 7A and FIG. 7B ,in FIG. 7A A schematic diagram illustrating the application of the electronic device 70 according to the seventh embodiment of this disclosure is provided. FIG. 7B Drawing according to FIG. 7A A projected schematic diagram of the electronic device 70 in the seventh embodiment. FIG. 7A and FIG. 7B It is understood that the electronic device 70 is a head-mounted device, which can be an augmented reality (AR) module or a virtual reality (VR) module. Furthermore, the electronic device 70 can also be a projection module, a LiDAR module, etc., but is not limited thereto. This allows for the improvement of the resolution of the projected image.

[0280] The electronic device 70 includes two image modules 700, wherein each of the image modules 700 includes an image transmission module 720, a lens 710, and an image source 750. Specifically, the image modules 700 can be the image modules of the fourth and fifth embodiments described above, and the image transmission modules 720 can be waveguides, and the lenses 710 can be projection lenses, but the present disclosure is not limited thereto.

[0281] The image modules 700 can be single-group lenses or multi-group lenses, and the light rays from the image source 750 can be converged or diverged to the projection surface 701 through the lens 710. The image source 750 can further include optical elements such as a lens array, a light homogenizer, a glass sheet, etc., but is not limited thereto.

[0282] Further, the image transmission module 720 is disposed on the light-in side of the image module 700, and through the configuration of the image transmission module 720, the optical path of the imaging light IL of the image source 750 can be turned and transmitted to the user's eyes.

[0283] Although the present disclosure has been disclosed with the above embodiments and implementations, it is not intended to limit the present disclosure, and anyone with ordinary knowledge in the art can make some changes and modifications without departing from the spirit and scope of the present disclosure, and the protection scope of the present disclosure shall be subject to the scope defined by the appended claims.

Claims

1. A camera module characterized by comprising: A camera module, comprising: An imaging lens, comprising: A plastic optical element, a light-shielding film layer disposed on a light-transmitting surface of the plastic optical element, and the plastic optical element comprising an optically effective region, an edge region of the light-shielding film layer forming a specific shape around the optically effective region, so that the light-shielding film layer is used to define a light passing region corresponding to the optically effective region, wherein the edge region comprises: A main portion in physical contact with the light-transmitting surface; and A compensation portion disposed on the edge of the main portion adjacent to the optically effective region, the compensation portion being closer to the optically effective region than the main portion, the compensation portion extending towards the optically effective region, and the compensation portion having a lower optical density than the main portion; and An image sensor disposed on an image side of the imaging lens, the image sensor being used to define a maximum image height, the imaging lens corresponding to the maximum image height to define a relative illumination; Wherein the roughness of the light-transmitting surface is RO, which is equal to or less than 1.2 um; Wherein the light-transmitting surface comprises an annular mark structure, the annular mark structure having an angle end, and the angle end surrounds the optically effective region; Wherein the relative illumination of the imaging lens is RI, the optical density of the main portion is DM, the thickness of the main portion is T, and the extension distance of the compensation portion is L, which satisfy the following conditions: -LOG(RI) / DM≤1.2; 3 degrees < tan -1 (T / L) < 89.5 degrees; 0.7um -1 ≤ DM / T ≤ 7.2um -1 ; and 0um<L≤32um.

2. The camera module of claim 1, wherein, The imaging lens corresponds to the maximum image height to define a half field of view, the half field of view is HFOV, and the relative illumination of the imaging lens is RI, which satisfy the following conditions: 0.04≤RI×sin(HFOV)≤0.

35.

3. The camera module of claim 1, wherein, The thickness of the main portion is T, which satisfies the following conditions: 0.14um≤T≤9.85um.

4. The camera module of claim 3, wherein, The thickness of the main portion is T, which satisfies the following conditions: 0.28um≤T≤4.95um.

5. The camera module of claim 4, wherein, The thickness of the main portion is T, which satisfies the following conditions: 0.48um≤T≤1.95um.

6. The camera module of claim 1, wherein, The extension distance of the compensation portion is L, which satisfies the following conditions: 0um<L≤16um.

7. The camera module of claim 6, wherein, The extension distance of the compensation portion is L, which satisfies the following conditions: 0um<L≤7um.

8. The camera module of claim 1, wherein, The optical density of the main portion is DM, and the thickness of the main portion is T, which satisfy the following conditions: 1.6um -1 ≤ DM / T ≤ 1.95um -1 .

9. The camera module of claim 1, wherein, The roughness of the light-transmitting surface is RO, and the roughness of the main portion is RM, which satisfy the following conditions: 0≤|1-RO / RM|≤0.

6.

10. The camera module of claim 1, wherein, The plastic optical element is a plastic lens, the plastic lens comprises an aspherical surface, and the aspherical surface corresponds to the optically effective region.

11. The camera module of claim 1, wherein, The plastic optical element is a plastic reflective element, the plastic reflective element comprises at least one reflective surface, and the at least one reflective surface is disposed on the same optical path as the optically effective region.

12. An electronic device, comprising: A camera module, comprising: At least one camera module as claimed in claim 1.

13. A camera module characterized by comprising: An imaging lens, comprising: ​ A plastic optical element, a light shielding film layer is disposed on a light transmitting surface of the plastic optical element, and the plastic optical element comprises an optically effective area, an edge area of the light shielding film layer forms a specific shape around the optically effective area, so that the light shielding film layer is used to define a light passing area corresponding to the optically effective area, wherein the edge area comprises: a main part, which is in physical contact with the light transmitting surface; and a compensation part, which is disposed on the edge of the main part adjacent to the optically effective area, the compensation part is closer to the optically effective area than the main part, the compensation part extends towards the optically effective area, and the compensation part has a lower optical density than the main part; and an image sensor, which is disposed on an image side of the imaging lens, the image sensor is used to define a maximum image height, and the imaging lens is used to define a relative illumination corresponding to the maximum image height; wherein the roughness of the light transmitting surface is RO, which is equal to or less than 1.2 um; wherein the light transmitting surface comprises an annular mark structure, the annular mark structure has an angle end, and the angle end surrounds the optically effective area; wherein the relative illumination of the imaging lens is RI, the optical density of the main part is DM, the thickness of the main part is T, the maximum extension distance of the compensation part is Lmax, and the area of the compensation part is A, which satisfy the following conditions: -LOG(RI) / DM≤1.2; 0.7um -1 ≤ DM / T ≤ 7.2um -1 ; 0um 14. The camera module of claim 13, wherein, The imaging lens defines a half view angle corresponding to the maximum image height, the half view angle is HFOV, and the relative illumination of the imaging lens is RI, which satisfy the following conditions: 0.04≤RI×sin(HFOV)≤0.

35.

15. The camera module of claim 13, wherein, The thickness of the main part is T, and the maximum extension distance of the compensation part is Lmax, which satisfy the following conditions: 3 degrees < tan -1 (T / Lmax) < 89.5 degrees.

16. The camera module of claim 13, wherein, The maximum extension distance of the compensation part is Lmax, which satisfy the following conditions: 0um 17. The camera module of claim 16, wherein, The maximum extension distance of the compensation part is Lmax, which satisfy the following conditions: 0um 18. The camera module of claim 13, wherein, The thickness of the main part is T, which satisfy the following conditions: 0.14um≤T≤9.85um.

19. The camera module of claim 18, wherein, The thickness of the main part is T, which satisfy the following conditions: 0.28um≤T≤4.95um.

20. The camera module of claim 19, wherein, The thickness of the main part is T, which satisfy the following conditions: 0.48um≤T≤1.95um.

21. The camera module of claim 13, wherein, The optical density of the main part is DM, and the thickness of the main part is T, which satisfy the following conditions: 1.6um -1 ≤ DM / T ≤ 1.95um -1 .

22. The camera module of claim 13, wherein, The roughness of the light transmitting surface is RO, and the roughness of the main part is RM, which satisfy the following conditions: 0≤|1-RO / RM|≤0.

6.

23. The camera module of claim 13, wherein, The plastic optical element is a plastic lens, the plastic lens comprises an aspheric surface, and the aspheric surface corresponds to the optically effective area.

24. The camera module of claim 13, wherein, The plastic optical element is a plastic reflective element, the plastic reflective element comprises at least one reflective surface, and the at least one reflective surface is disposed on the same optical path as the optically effective area.

25. An electronic device, comprising: Comprise: at least one camera module as claimed in claim 13.

26. A camera module characterized by comprising: Comprise: an imaging lens, comprising: A plastic optical element, a light shielding film layer is disposed on a light transmitting surface of the plastic optical element, and the plastic optical element includes an optically effective area, an edge area of the light shielding film layer forms a specific shape around the optically effective area, so that the light shielding film layer is used to define a light passing area corresponding to the optically effective area, wherein the edge area includes: a main part, which is in physical contact with the light transmitting surface; and a compensation part, which is disposed on an edge of the main part adjacent to the optically effective area, the compensation part is closer to the optically effective area than the main part, the compensation part extends towards the optically effective area, the compensation part has a lower optical density than the main part, and the compensation part includes: a tip, which is disposed at one end away from the main part; and an inverse bevel, which faces the light transmitting surface, the inverse bevel is closer to the light transmitting surface from the tip towards the main part, and an air gap is formed between the inverse bevel and the light transmitting surface; and an image sensor, which is disposed on an image side of the imaging lens, the image sensor is used to define a maximum image height, and the imaging lens is used to define a relative illumination corresponding to the maximum image height; wherein the roughness of the light transmitting surface is RO, which is equal to or less than 1.2 um; wherein the light transmitting surface includes a ring-shaped mark structure, the ring-shaped mark structure has an angle end, and the angle end surrounds the optically effective area; wherein the relative illumination of the imaging lens is RI, the optical density of the main part is DM, the thickness of the main part is T, and the extension distance of the compensation part is L, which satisfy the following conditions: -LOG(RI) / DM≤1.2; 3 degrees < tan -1 (T / L) < 89.5 degrees; and 0um<L≤32um.

27. The camera module of claim 26, wherein, The imaging lens is used to define a half field of view corresponding to the maximum image height, the half field of view is HFOV, and the relative illumination of the imaging lens is RI, which satisfy the following conditions: 0.04≤RI×sin(HFOV)≤0.

35.

28. The camera module of claim 26, wherein, The optical density of the main part is DM, and the thickness of the main part is T, which satisfy the following conditions: 0.7um -1 ≤ DM / T ≤ 7.2um -1 .

29. The camera module of claim 28, wherein, The optical density of the main part is DM, and the thickness of the main part is T, which satisfy the following conditions: 1.6um -1 ≤ DM / T ≤ 1.95um -1 .

30. The camera module of claim 26, wherein, The extension distance of the compensation part is L, which satisfy the following conditions: 0um<L≤16um.

31. The camera module of claim 30, wherein, The extension distance of the compensation part is L, which satisfy the following conditions: 0um<L≤7um.

32. The camera module of claim 26, wherein, The thickness of the main part is T, which satisfy the following conditions: 0.14um≤T≤9.85um.

33. The camera module of claim 32, wherein, The thickness of the main part is T, which satisfy the following conditions: 0.28um≤T≤4.95um.

34. The camera module of claim 33, wherein, The thickness of the main part is T, which satisfy the following conditions: 0.48um≤T≤1.95um.

35. The camera module of claim 26, wherein, The roughness of the light transmitting surface is RO, and the roughness of the main part is RM, which satisfy the following conditions: 0≤|1-RO / RM|≤0.

6.

36. The camera module of claim 26, wherein, The plastic optical element is a plastic lens, the plastic lens includes an aspheric surface, and the aspheric surface corresponds to the optically effective area.

37. The camera module of claim 26, wherein, The plastic optical element is a plastic reflective element, the plastic reflective element includes at least one reflective surface, and the at least one reflective surface is disposed on the same optical path as the optically effective area.

38. An electronic device, comprising: includes: at least one camera module as claimed in claim 26.

39. A camera module characterized by includes: An imaging lens comprising: A plastic optical element, a light-shielding film layer is disposed on a light-transmitting surface of the plastic optical element, and the plastic optical element comprises an optically effective region, an edge region of the light-shielding film layer forms a specific shape around the optically effective region, so that the light-shielding film layer is used to define a light-transmitting region corresponding to the optically effective region, wherein the edge region comprises: A main body part forming the specific shape; and An image sensor disposed on an image side of the imaging lens, the image sensor is used to define a maximum image height, the imaging lens corresponds to the maximum image height to define a relative illumination and a half field of view; Wherein the roughness of the light-transmitting surface is RO, which is equal to or less than 1.2um; Wherein the light-transmitting surface comprises a ring-shaped mark structure, the ring-shaped mark structure has an angle end, and the angle end surrounds the optically effective region; Wherein a thickness of the main body part is T, an optical density of the main body part is DM, the relative illumination of the imaging lens is RI, and the half field of view is HFOV, which satisfy the following conditions: -LOG(RI) / DM≤1.2; 0.14um≤T≤9.85um; 0.7um -1 ≤ DM / T ≤ 7.2um -1 ; and 0.04≤RI×sin(HFOV)≤0.

35.

40. The camera module of claim 39, wherein, The optical density of the main body part is DM, and the thickness of the main body part is T, which satisfy the following conditions: 1.6um -1 ≤ DM / T ≤ 1.95um -1 .

41. The camera module of claim 39, wherein, The roughness of the light-transmitting surface is RO, and the roughness of the main body part is RM, which satisfy the following conditions: 0≤|1-RO / RM|≤0.

6.

42. The camera module of claim 39, wherein, The plastic optical element is a plastic lens, the plastic lens comprises an aspheric surface, and the aspheric surface corresponds to the optically effective region.

43. The camera module of claim 39, wherein, The plastic optical element is a plastic reflective element, the plastic reflective element comprises at least one reflective surface, and the at least one reflective surface is disposed on the same optical path as the optically effective region.

44. An electronic device, comprising: Comprising: At least one camera module as claimed in claim 39.

45. An image module, comprising: Comprising: A lens comprising a glass lens and a plastic lens; and An image source disposed on an entrance light side of the lens; Wherein the glass lens is closer to the image source than the plastic lens; Wherein a light-shielding film layer is disposed on a light-transmitting surface of the plastic lens, and the plastic lens comprises an optically effective region; Wherein an edge region of the light-shielding film layer forms a specific shape around the optically effective region, so that the light-shielding film layer is used to define a light-transmitting region corresponding to the optically effective region; Wherein the roughness of the light-transmitting surface is RO, which is equal to or less than 1.2um; Wherein the light-transmitting surface comprises a ring-shaped mark structure, the ring-shaped mark structure has an angle end, and the angle end surrounds the optically effective region; Wherein the edge region comprises a main body part forming the specific shape; Wherein a thickness of the main body part is T, and an optical density of the main body part is DM, which satisfy the following conditions: 0.14um≤T≤9.85um; and 0.7um -1 ≤ DM / T ≤ 7.2um -1 .

46. The video module of claim 45, wherein, The optical density of the main body part is DM, and the thickness of the main body part is T, which satisfy the following conditions: 1.6um -1 ≤ DM / T ≤ 1.95um -1 .

47. The video module of claim 45, wherein the video module is configured to display the video stream on the display device. The roughness of the light-transmitting surface is RO, and the roughness of the main body part is RM, which satisfy the following conditions: 0≤|1-RO / RM|≤0.

6.

48. The video module of claim 45, wherein, The optically effective region of the light-transmitting surface is an aspherical surface, and the aspherical surface includes at least one inflection point.

49. An electronic device, comprising: Comprising: At least one image module as claimed in claim 45.

50. An image module, comprising: Comprising: A lens sequentially comprising a reflective element and a plastic lens from an entrance light side to an exit light side; and An image source disposed at the entrance light side of the lens; Wherein a light-shielding film layer is disposed on a light-transmitting surface of the plastic lens, and the plastic lens comprises an optically effective region; Wherein an edge region of the light-shielding film layer forms a specific shape around the optically effective region, so that the light-shielding film layer is used to define a light-transmitting region corresponding to the optically effective region; Wherein the roughness of the light-transmitting surface is RO, which is equal to or less than 1.2 um; Wherein the light-transmitting surface comprises an annular marking structure having an angular end, and the angular end surrounds the optically effective region; Wherein the edge region comprises a main part forming the specific shape; Wherein a thickness of the main part is T, and the optical density of the main part is DM, which satisfies the following conditions: 0.14 um≤T≤9.85 um; and 0.7um -1 ≤ DM / T ≤ 7.2um -1 .

51. The video module of claim 50, wherein, The optical density of the main part is DM, and the thickness of the main part is T, which satisfies the following conditions: 1.6um -1 ≤ DM / T ≤ 1.95um -1 .

52. The video module of claim 50, wherein, The roughness of the light-transmitting surface is RO, and the roughness of the main part is RM, which satisfies the following conditions: 0≤|1-RO / RM|≤0.

6.

53. The video module of claim 50, wherein, The optically effective region of the light-transmitting surface is an aspherical surface, and the aspherical surface includes at least one inflection point.

54. An electronic device, comprising: Comprising: At least one image module as claimed in claim 50.

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