Optical path folding camera module and electronic device
Patent Information
- Application Number
- TW113150416
- Authority / Receiving Office
- TW · TW
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-10-21
- Estimated Expiration
- 2044-12-23
AI Technical Summary
Traditional optical lenses struggle to meet high optical quality demands due to non-imaging stray light generated by reflections, failing to meet the stringent requirements of modern electronic devices.
A tilting camera module with a light-deflecting element and a light-shielding plate or layer that deflects and blocks stray light, featuring a reflective surface and optical surfaces to improve optical quality and miniaturization.
The solution provides high imaging quality by reducing stray light, enhancing signal-to-noise ratio, and meeting the needs of camera module miniaturization and industrial applicability.
Smart Images

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Abstract
Description
Technical Field
[0001] This invention relates to a tilting camera module and an electronic device, particularly a tilting camera module suitable for an electronic device. Prior Technology
[0002] With the rapid advancement of technology, high-quality optical lenses have become an indispensable component. Furthermore, the applications of electronic devices equipped with optical lenses are expanding, leading to more diverse requirements for these lenses.
[0003] However, in recent years, traditional optical lenses have struggled to meet the high optical quality demands of diversified electronic products, particularly due to the presence of non-imaging stray light within the lens itself, which can negatively impact optical quality. Known optical lenses often generate non-imaging stray light due to reflections, thus failing to meet the increasingly stringent market requirements for optical quality. Therefore, improving optical lenses to avoid generating non-imaging stray light and meet the high specifications required by today's electronic devices has become a crucial issue in the field. Summary of the Invention
[0004] In view of the above-mentioned problems, the present invention discloses a turning camera module and electronic device that helps to block specific stray light, thereby improving the overall optical quality.
[0005] An embodiment of the present invention discloses a deflection camera module having a first optical axis and a second optical axis sequentially from an object side to an image side. The deflection camera module includes a light-deflecting element, an object-side lens, an image-side lens, and a light-blocking plate. The light-deflecting element has a reflective surface. The reflective surface is used to deflect the first optical axis to the second optical axis. The first optical axis passes through the object-side lens. The object-side lens has at least one optical surface. The at least one optical surface is spherical or aspherical. The at least one optical surface and the reflective surface are correspondingly disposed on the first optical axis. The second optical axis passes through the image-side lens. The light-blocking plate is disposed between one of the at least one optical surface and the reflective surface. The light-blocking plate includes an object-side surface, an image-side surface, a light-blocking portion, and a light-passing port. The object-side surface faces the object side. The image-side surface is disposed opposite the object-side surface and faces the reflective surface. The light-blocking portion connects the object-side surface and the image-side surface. The light-blocking portion is disposed towards the first optical axis. The light-blocking portion is closer to the first optical axis than the image-side lens. The light-shielding part has a light-shielding surface surrounding the first optical axis. The light-passing aperture is defined by the light-shielding surface of the light-shielding part. The light-shielding surface of the light-shielding part extends continuously towards the object-side surface and the image-side surface without any breaks.
[0006] Another embodiment of the present invention discloses a deflection camera module having a first optical axis and a second optical axis sequentially from an object side to an image side. The deflection camera module includes a light-deflecting element, an image-side lens, and a light-shielding layer. The light-deflecting element has a reflective surface and at least one optical surface. The reflective surface is used to deflect the first optical axis to the second optical axis. The first optical axis passes through the at least one optical surface. The at least one optical surface is spherical or aspherical. The second optical axis passes through the image-side lens. The light-shielding layer is disposed on the object side of the reflective surface. The light-shielding layer includes an object-side surface, an image-side surface, a light-shielding portion, and a light-transmitting aperture. The object-side surface faces the object side. The image-side surface is disposed opposite the object-side surface and faces the reflective surface. The light-shielding portion connects the object-side surface and the image-side surface. The light-shielding portion is disposed towards the first optical axis. The light-shielding portion is closer to the first optical axis than the image-side lens. The light-shielding portion has a light-shielding surface surrounding the first optical axis. The light-transmitting aperture is defined by the light-shielding surface of the light-shielding portion. A light-shielding layer is attached to the at least one optical surface. The light-shielding layer extends in a direction parallel to and toward the first optical axis. The height of the light-shielding layer in the direction parallel to the first optical axis is h1, the height difference of the surface to which the light-shielding layer is attached in the direction parallel to the first optical axis is h2, the distance between the surface of the light-shielding layer closest to the reflecting surface and the reflecting surface on the first optical axis is Db, and the distance between the surface of the at least one optical surface closest to the reflecting surface and the reflecting surface on the first optical axis is Do, which satisfy the following conditions: 0 < h1 / h2 < 1.2; and 0.3 < Db / Do < 2.
[0007] Another embodiment of the present invention discloses a deflection camera module having a first optical axis and a second optical axis sequentially from an object side to an image side. The deflection camera module includes a light-deflecting element, an object-side lens, an image-side lens, and a light-shielding layer. The light-deflecting element has a reflective surface. The reflective surface is used to deflect the first optical axis to the second optical axis. The first optical axis passes through the object-side lens. The object-side lens has at least one optical surface. The at least one optical surface is spherical or aspherical. The second optical axis passes through the image-side lens. The light-shielding layer is disposed on the light-deflecting element. The light-shielding layer includes an object-side surface, an image-side surface, a light-shielding portion, and a light-transmitting aperture. The object-side surface faces the object side. The image-side surface is disposed opposite the object-side surface and faces the reflective surface. The light-shielding portion connects the object-side surface and the image-side surface. The light-shielding portion is disposed towards the first optical axis. The light-shielding portion is closer to the first optical axis than the image-side lens. The light-shielding portion has a light-shielding surface surrounding the first optical axis. The light-transmitting aperture is defined by the light-shielding surface of the light-shielding portion. The light-shielding portion has multiple arc-shaped structures in a direction perpendicular to the first optical axis. The arc-shaped structures extend from the light-shielding surface toward the first optical axis. The arc-shaped structures are arranged along the entire contour of at least one side of the light-shielding portion.
[0008] Another embodiment of the present invention discloses a deflection camera module having a first optical axis and a second optical axis sequentially from an object side to an image side. The deflection camera module includes a light-deflecting element, an object-side lens, an image-side lens, and a light-blocking plate. The light-deflecting element has a reflective surface. The reflective surface is used to deflect the first optical axis to the second optical axis. The first optical axis passes through the object-side lens. The object-side lens has at least one optical surface. The at least one optical surface is spherical or aspherical. The at least one optical surface and the reflective surface are correspondingly disposed on the first optical axis. The second optical axis passes through the image-side lens. The light-blocking plate is disposed between one of the at least one optical surface and the reflective surface. The light-blocking plate includes an object-side surface, an image-side surface, a light-blocking portion, and a light-passing aperture. The object-side surface faces the object side. The image-side surface is disposed opposite the object-side surface and faces the reflective surface. The light-blocking portion connects the object-side surface and the image-side surface. The light-blocking portion is disposed towards the first optical axis. The light-blocking portion is closer to the first optical axis than the image-side lens. The light-shielding portion has a light-shielding surface surrounding a first optical axis. The light-passing aperture is defined by the light-shielding surface of the light-shielding portion. The light-shielding portion further has multiple arc-shaped structures in a direction perpendicular to the first optical axis. The arc-shaped structures extend from the light-shielding surface toward the first optical axis. The arc-shaped structures are arranged along at least one contour of the light-shielding portion. The light-shielding surface of the light-shielding portion gradually approaches or moves away from the first optical axis from the object-side surface to the image-side surface.
[0009] Another embodiment of the present invention discloses an electronic device comprising the aforementioned tilting camera module.
[0010] According to the above embodiments, the camera module with anti-stray light countermeasures can provide an optical architecture with high imaging quality by providing at least one optical surface on the object side of the reflective surface of the optical transition element and providing a light shield or light shielding layer on the object side of the reflective surface of the optical transition element. This can simultaneously meet the needs of camera module miniaturization and industrial applicability.
[0011] The above description of the content of this invention and the following description of the embodiments are used to demonstrate and explain the principles of this invention, and to provide a further explanation of the scope of the patent application of this invention. Simple Explanation of the Diagram
[0012] Figure 1 is a perspective view of a turning camera module according to a first embodiment of the present invention. Figure 2 is a top view of the camera module in Figure 1. Figure 3 is a side view sectional view of the camera module in Figure 2 cut along line segment AA. Figure 4 is an enlarged schematic diagram of region BB in Figure 3. Figure 5 is a top view schematic diagram of the light shield of the tilting camera module according to the second embodiment of the present invention. Figure 6 is a side view of the light-shielding plate in Figure 5, cut along the CC line segment, and an enlarged view of the DD region. Figure 7 is a top view schematic diagram of the light shield of the tilting camera module according to the third embodiment of the present invention. Figure 8 is a side view of the light-shielding plate in Figure 7 cut along the EE line segment and an enlarged view of the FF region. Figure 9 is a top view schematic diagram of the light shield of the turning camera module according to the fourth embodiment of the present invention. Figure 10 is a side view of the light-shielding plate in Figure 9, cut along line GG, and an enlarged view of the HH region. Figure 11 is a perspective view of a turning camera module according to a fifth embodiment of the present invention. Figure 12 is a top view of the camera module in Figure 11. Figure 13 is a side view sectional view of the camera module in Figure 12 cut along line segment II. Figure 14 is an enlarged schematic diagram of the JJ region in Figure 13. Figure 15 is a perspective view of the light-deflecting element and light-shielding layer of the deflecting camera module according to the sixth embodiment of the present invention. Figure 16 is a top view of the shading layer in Figure 15. Figure 17 is a side view of the light-shielding layer in Figure 16 cut along line segment KK and an enlarged view of the LL region. Figure 18 is a perspective view of the light-deflecting element and light-shielding layer of the deflecting camera module according to the seventh embodiment of the present invention. Figure 19 is a top view of the shading layer in Figure 18. Figure 20 is a side view of the light-shielding layer in Figure 19, cut along the MM line segment, and an enlarged view of its NN region. Figure 21 is a perspective view of the light-deflecting element and light-shielding layer of the deflecting camera module according to the eighth embodiment of the present invention. Figure 22 is a top view of the shading layer in Figure 21. Figure 23 is a side view of the light-shielding layer in Figure 22 cut along the OO line segment and an enlarged view of the PP area. Figure 24 is a top view schematic diagram of the light-shielding layer of the light-deflecting element of the deflecting camera module according to the ninth embodiment of the present invention. Figure 25 is a top view schematic diagram of the light-blocking layer of the light-blocking element of the camera module according to the tenth embodiment of the present invention. Figure 26 is a side cross-sectional view of the camera module according to the eleventh embodiment of the present invention. Figure 27 is a magnified schematic diagram of a portion of the camera module in Figure 26 and its QQ area. Figure 28 is a side cross-sectional view of a camera module according to the twelfth embodiment of the present invention. Figure 29 is a magnified schematic diagram of a portion of the camera module in Figure 28 and its RR region. Figure 30 is a perspective view of a turning camera module according to the thirteenth embodiment of the present invention. Figure 31 is a top view of the camera module in Figure 30. Figure 32 is a side view sectional view of the camera module in Figure 31 cut along the SS line segment. Figure 33 is an enlarged schematic diagram of the TT region in Figure 32. Figure 34 is a top view schematic diagram of the light shield of the turning camera module according to the fourteenth embodiment of the present invention. Figure 35 is a perspective view of the light-deflecting element and light-shielding layer of the deflecting camera module according to the fifteenth embodiment of the present invention. Figure 36 is a side cross-sectional view of the light-deflecting element and the light-shielding layer in Figure 35. Figure 37 is a top view cross-sectional view of the light-deflecting element and the light-shielding layer in Figure 36, cut along the UU line segment. Figure 38 is a top view of the shading layer in Figure 37. Figure 39 is a side view of the shading layer of Figure 38 cut along the VV line segment and an enlarged view of the WW region. Figure 40 is a perspective view of a turning camera module according to the sixteenth embodiment of the present invention. Figure 41 is a top view of the camera module in Figure 40. Figure 42 is a side view sectional view of the camera module in Figure 41 cut along line segment XX. Figure 43 is a three-dimensional schematic diagram of the light-deflecting element and light-shielding layer of the camera module in Figure 42. Figure 44 is a top view of the shading layer in Figure 43. Figure 45 is a side view cross-sectional view of the light-deflecting element and the light-shielding layer in Figure 43, and an enlarged view of the YY region. Figure 46 illustrates a perspective view of one side of an electronic device according to the seventeenth embodiment of the present invention. Figure 47 shows a three-dimensional schematic diagram of the other side of the electronic device in Figure 46. Figure 48 illustrates a schematic diagram of images captured by an ultra-wide-angle camera module. Figure 49 illustrates a schematic diagram of images captured by a high-resolution camera module. Figure 50 illustrates a schematic diagram of images captured by a telephoto camera module. Figure 51 illustrates a perspective view of one side of an electronic device according to the eighteenth embodiment of the present invention. Figure 52 illustrates a perspective view of an electronic device according to the nineteenth embodiment of the present invention. Figure 53 shows a side view of the electronic device in Figure 52. Figure 54 shows a top view of the electronic device in Figure 52. Implementation
[0013] The following detailed description of the features and advantages of the present invention is sufficient to enable anyone skilled in the art to understand the technical content of the present invention and implement it accordingly. Based on the disclosure, patent claims, and drawings in this specification, anyone skilled in the art can easily understand the relevant objectives and advantages of the present invention. The following embodiments further illustrate the points of the present invention in detail, but are not intended to limit the scope of the present invention in any way.
[0014] The present invention provides a tilting camera module, wherein the tilting camera module has a first optical axis and a second optical axis sequentially from an object side to an image side.
[0015] The deflection camera module may include a light-deflecting element, an object-side lens, and an image-side lens. The light-deflecting element may be a prism or a mirror, but this invention is not limited thereto. The object-side lens or image-side lens may be a single lens, a single lens group composed of multiple lenses, or multiple lens groups; this invention is not limited thereto. Please note that the imaging capabilities of the object-side lens and image-side lens are not intended to limit this invention; therefore, partial outlines of the object-side lens and image-side lens are omitted to avoid obscuring the focus of this invention.
[0016] The light-deflecting element has a reflective surface. The reflective surface is used to deflect a first optical axis to a second optical axis. The first optical axis can pass through an object-side lens, and the second optical axis can pass through an image-side lens. This allows for the miniaturization of the deflecting camera module.
[0017] At least one of the object-side lens and the light-reflecting element may have at least one optical surface. The at least one optical surface may be spherical or aspherical. The at least one optical surface may be made by glass molding or plastic injection molding, but the present invention is not limited thereto. The at least one optical surface may be correspondingly arranged with the reflecting surface on the first optical axis. The first optical axis may pass through the at least one optical surface.
[0018] The tilting camera module may further include a light-shielding plate or a light-shielding layer. The light-shielding plate or light-shielding layer may be disposed on the object side of the reflective surface. Specifically, the light-shielding plate or light-shielding layer may be disposed between one of the at least one optical surfaces and the reflective surface.
[0019] In cases where the camera module further includes a light-shielding plate, the light-shielding plate may have an air gap with adjacent optical elements, but the invention is not limited thereto. Note that the optical elements may be, for example, the object-side lens, image-side lens, light-deflecting element, or other imaging-related elements described above.
[0020] In cases where the camera module further includes a light-shielding layer, the light-shielding layer can be attached to the at least one optical surface, and the light-shielding layer can extend in a direction parallel to and toward the first optical axis. This provides a wider range of applications for the light-shielding layer. The light-shielding layer can be disposed on a light-deflecting element. Note that the light-shielding layer can be made by photoresist curing, and may include both positive and negative photoresist; this invention is not limited thereto.
[0021] A light-shielding plate or layer may include an object-side surface, an image-side surface, a light-shielding portion, and a light-passing aperture. The object-side surface faces the object side. The image-side surface is disposed opposite the object-side surface and faces the reflecting surface. The light-shielding portion connects the object-side surface and the image-side surface. The light-shielding portion is disposed towards the first optical axis. The light-shielding portion is closer to the first optical axis than the image-side lens.
[0022] The light-shielding part has a light-shielding surface surrounding the first optical axis. The light-transmitting opening is defined by the light-shielding surface of the light-shielding part. The light-shielding surface can define the shape, size, and configuration of the light-transmitting opening, but the present invention is not limited thereto.
[0023] According to the camera module disclosed in this invention, by providing at least one optical surface on the object side of the reflective surface of the optical transition element, and by providing a light shield or light shielding layer on the object side of the reflective surface of the optical transition element, an optical architecture with anti-stray light countermeasures can be provided to provide high imaging quality, and can simultaneously meet the needs of camera module miniaturization and industrial applicability.
[0024] The light-shielding surface of the light-shielding section can gradually approach or move away from the first optical axis from the object-side surface to the image-side surface. This improves product yield. Furthermore, the light-shielding surface of the light-shielding section can extend continuously towards both the object-side and image-side surfaces without breaks. This reduces optical image signal loss, thereby improving the signal-to-noise ratio of the image.
[0025] The light-shielding portion may have multiple arc-shaped structures in a direction perpendicular to the first optical axis. The arc-shaped structures may extend from the light-shielding surface toward the first optical axis. The arc-shaped structures may be integrally formed with the light-shielding portion, but this invention is not limited thereto. The arc-shaped structures may be arranged along at least one contour of the light-shielding portion. This further reduces the probability of stray light generation. Alternatively, the arc-shaped structures may be arranged linearly in a direction parallel to the second optical axis. This further ensures imaging quality and improves the design margin of the arc-shaped structures. Alternatively, the arc-shaped structures may be arranged along the entire contour of at least one side of the light-shielding portion.
[0026] The light-shielding sheet or layer may further contain multiple additives of specific shapes. These additives can be evenly distributed within the light-shielding sheet or layer. This enhances the mechanical strength of the light-shielding sheet or layer.
[0027] The camera module for deflection disclosed in this invention may further include a driving device. The driving device provides a rotation axis for the light deflection element and a degree of freedom to rotate about said rotation axis. This maintains the focusing capability of the camera module.
[0028] When the camera module further includes a light-shielding layer, the height of the light-shielding layer in the direction parallel to the first optical axis is h1, and the height difference of the surface to which the light-shielding layer is attached in the direction parallel to the first optical axis is h2, which can satisfy the following condition: 0 < h1 / h2 < 1.2. This can further improve the optical imaging quality.
[0029] The distance between the surface of the light-shielding plate or layer closest to the reflecting surface and the reflecting surface on the first optical axis is Db, and the distance between the surface of the at least one optical surface closest to the reflecting surface and the reflecting surface on the first optical axis is Do, which can satisfy the following condition: 0.3 < Db / Do < 2. This further ensures light-shielding efficiency and provides design margin for the placement of the light-shielding plate or layer. It can also satisfy the following condition: 0.5 < Db / Do < 1.3. This ensures the feasibility of product assembly.
[0030] The radius of curvature of the arc-shaped structure near the object-side surface in the direction perpendicular to the first optical axis is R, which satisfies the following condition: 0.05 mm ≤ R < 1.7 mm. This further ensures imaging quality and improves the design margin of the arc-shaped structure. It also satisfies the following condition: 0.08 mm ≤ R < 1.5 mm. This simplifies the manufacturing process.
[0031] The present invention provides an electronic device comprising the aforementioned tilting camera module.
[0032] The various technical features in the camera module and electronic device of the present invention can be combined and configured to achieve corresponding effects.
[0033] Based on the above implementation methods, specific embodiments are presented below and described in detail with reference to the accompanying drawings.
[0034] <First Embodiment>
[0035] Please refer to Figures 1 to 4, wherein Figure 1 is a perspective view of the turning camera module according to the first embodiment of the present invention, Figure 2 is a top view of the turning camera module of Figure 1, Figure 3 is a side view of the turning camera module of Figure 2 cut along line segment AA, and Figure 4 is an enlarged view of the BB region of Figure 3.
[0036] This embodiment provides a tilting camera module 1. The tilting camera module 1 has a first optical axis 1a and a second optical axis 1b sequentially from the object side to the image side.
[0037] The deflection camera module 1 includes a light deflection element 101, an object-side lens 102, and an image-side lens 103. The light deflection element 101 is a prism, but this is not a limitation of the invention. The object-side lens 102 is a single lens, while the image-side lens 103 is a single lens group, but this is not a limitation of the invention. Note that partial outlines of the object-side lens 102 and the image-side lens 103 have been omitted.
[0038] The light-deflecting element 101 has a reflective surface 1010. The reflective surface 1010 deflects the first optical axis 1a to the second optical axis 1b. The first optical axis 1a passes through the object-side lens 102, and the second optical axis 1b passes through the image-side lens 103 and reaches the imaging plane IMG.
[0039] The object-side lens 102 has multiple optical surfaces 1021a and 1021b. Optical surfaces 1021a and 1021b are correspondingly disposed on the reflecting surface 1010 along the first optical axis 1a, and the first optical axis 1a passes through optical surfaces 1021a and 1021b. Alternatively, optical surface 1021a faces away from the reflecting surface 1010 on the first optical axis 1a, and optical surface 1021b faces the reflecting surface 1010 on the first optical axis 1a.
[0040] The deflecting camera module 1 further includes a light-shielding plate 104a. The light-shielding plate 104a is disposed on the object side of the reflecting surface 1010 and between the optical surfaces 1021a, 1021b and the reflecting surface 1010. The light-shielding plate 104a has an air gap between itself and the adjacent light-deflecting element 101 and the object-side lens 102, respectively.
[0041] The light-blocking plate 104a includes an object-side surface 1041, an image-side surface 1042, a light-blocking portion 1043, and a light-passing port 1044. The object-side surface 1041 faces the object side. The image-side surface 1042 is disposed opposite to the object-side surface 1041 and faces the reflecting surface 1010. The light-blocking portion 1043 connects the object-side surface 1041 and the image-side surface 1042. The light-blocking portion 1043 is disposed toward the first optical axis 1a. The light-blocking portion 1043 is closer to the first optical axis 1a than the image-side lens 103.
[0042] The light-shielding part 1043 has a light-shielding surface 1043a surrounding the first optical axis 1a. The light-transmitting port 1044 is defined by the light-shielding surface 1043a of the light-shielding part 1043.
[0043] The light-shielding surface 1043a of the light-shielding portion 1043 extends continuously and without interruption towards the object-side surface 1041 and the image-side surface 1042. Alternatively, it can be said that the light-shielding surface 1043a extends continuously and without interruption from the object-side surface 1041 to the image-side surface 1042. The light-shielding surface 1043a gradually moves away from the first optical axis 1a in a direction parallel to the first optical axis 1a and from the object side to the image side.
[0044] The light-shielding sheet 104a further includes multiple additives 1045 of specific shapes. The additives 1045 of specific shapes are evenly distributed within the light-shielding sheet 104a.
[0045] The distance between the image-side surface 1042 of the light-shielding plate 104a closest to the reflecting surface 1010 and the reflecting surface 1010 on the first optical axis 1a is Db. The distance between the optical surface 1021b, which is closest to the reflecting surface 1010, and the reflecting surface 1010 on the first optical axis 1a is Do, which satisfies the following conditions: Db = 4.09 mm; Do = 4.96 mm; and Db / Do = 0.82. Note that both Db and Do are calculated based on the point where the reflecting surface 1010 and the optical surface 1021b intersect on the first optical axis 1a.
[0046] Without affecting imaging, the light-shielding sheet 104a in this embodiment can be replaced with different types of light-shielding sheets. Please refer to the second embodiment for further details.
[0047] <Second Embodiment>
[0048] Please refer to Figures 5 and 6, where Figure 5 is a top view of the light shield of the turning camera module according to the second embodiment of the present invention, and Figure 6 is a side view of the light shield of Figure 5 cut along the CC line segment and an enlarged view of its DD region.
[0049] The following describes the light-shielding sheet 204a that can be used to replace the light-shielding sheet 104a in the first embodiment. Please note that the turning camera module 2 in this embodiment is similar to the turning camera module 1 in the first embodiment, so the following description will only focus on the differences.
[0050] The light-blocking plate 204a includes an object-side surface 2041, an image-side surface 2042, a light-blocking portion 2043, and a light-passing port 2044. The object-side surface 2041 faces the object side. The image-side surface 2042 is disposed opposite to the object-side surface 2041. The light-blocking portion 2043 connects the object-side surface 2041 and the image-side surface 2042.
[0051] The light-shielding part 2043 has a light-shielding surface 2043a surrounding the first optical axis 2a. The light-transmitting port 2044 is defined by the light-shielding surface 2043a.
[0052] The light-shielding surface 2043a extends continuously and without interruption towards the object-side surface 2041 and the image-side surface 2042. Alternatively, it can be said that the light-shielding surface 2043a extends continuously and without interruption from the object-side surface 2041 to the image-side surface 2042. The light-shielding surface 2043a gradually moves away from the first optical axis 2a in a direction parallel to the first optical axis 2a and from the object side to the image side.
[0053] The light-shielding sheet 204a further includes multiple additives 2045 of specific shapes. The additives 2045 of specific shapes are evenly distributed within the light-shielding sheet 204a.
[0054] As shown in Figure 5, when viewed from above, the light-shielding sheet 204a can appear as a donut shape with two concentric circles. However, the present invention is not limited thereto; please refer to the third embodiment.
[0055] <Third Embodiment>
[0056] Please refer to Figures 7 and 8, where Figure 7 is a top view of the light shield of the turning camera module according to the third embodiment of the present invention, and Figure 8 is a side view of the light shield of Figure 7 cut along the EE line segment and an enlarged view of its FF region.
[0057] The following describes the light-shielding sheet 304a that can be used to replace the light-shielding sheet 104a in the first embodiment. Please note that the turning camera module 3 in this embodiment is similar to the turning camera module 1 in the first embodiment, so the following description will only focus on the differences.
[0058] The light-blocking plate 304a includes an object-side surface 3041, an image-side surface 3042, a light-blocking portion 3043, and a light-passing port 3044. The object-side surface 3041 faces the object side. The image-side surface 3042 is disposed opposite to the object-side surface 3041. The light-blocking portion 3043 connects the object-side surface 3041 and the image-side surface 3042.
[0059] The light-shielding part 3043 has a light-shielding surface 3043a surrounding the first optical axis 3a. The light-transmitting port 3044 is defined by the light-shielding surface 3043a.
[0060] The light-shielding surface 3043a extends continuously and without interruption towards the object-side surface 3041 and the image-side surface 3042. Alternatively, it can be said that the light-shielding surface 3043a extends continuously and without interruption from the object-side surface 3041 to the image-side surface 3042. The light-shielding surface 3043a gradually moves away from the first optical axis 3a in a direction parallel to the first optical axis 3a and from the object side to the image side.
[0061] The light-shielding sheet 304a further includes multiple additives 3045 of specific shapes. The additives 3045 of specific shapes are evenly distributed within the light-shielding sheet 304a.
[0062] Referring to Figure 7, the light-shielding portion 3043 further comprises a plurality of arc-shaped structures 3043b in a direction perpendicular to the first optical axis 3a. The arc-shaped structures 3043b extend in a direction from the light-shielding surface 3043a toward the first optical axis 3a. The arc-shaped structures 3043b are integrally formed with the light-shielding portion 3043, but the present invention is not limited thereto.
[0063] The radius of curvature of the arc-shaped structure 3043b in the direction perpendicular to the first optical axis 3a is R near the object-side surface 3041, which satisfies the following condition: R = 0.24 mm.
[0064] As shown in Figure 7, the arc-shaped structure 3043b is arranged along the full circumference of the inner edge of the light-shielding portion 3043 in a direction perpendicular to the first optical axis 3a. However, the present invention is not limited thereto; please refer to the fourth embodiment.
[0065] <Fourth Embodiment>
[0066] Please refer to Figures 9 to 10, wherein Figure 9 is a top view of the light shield of the turning camera module according to the fourth embodiment of the present invention, and Figure 10 is a side view of the light shield of Figure 9 cut along the GG line segment and an enlarged view of the HH region.
[0067] The following describes the light-shielding sheet 404a that can be used to replace the light-shielding sheet 104a in the first embodiment. Please note that the turning camera module 4 in this embodiment is similar to the turning camera module 1 in the first embodiment, so the following description will only focus on the differences, along with necessary details.
[0068] The light-blocking plate 404a includes an object-side surface 4041, an image-side surface 4042, a light-blocking portion 4043, and a light-passing port 4044. The object-side surface 4041 faces the object side. The image-side surface 4042 is disposed opposite to the object-side surface 4041. The light-blocking portion 4043 connects the object-side surface 4041 and the image-side surface 4042.
[0069] The light-shielding part 4043 has a light-shielding surface 4043a surrounding the first optical axis 4a. The light-transmitting port 4044 is defined by the light-shielding surface 4043a.
[0070] The light-shielding surface 4043a extends continuously and without interruption towards the object-side surface 4041 and the image-side surface 4042. Alternatively, it can be said that the light-shielding surface 4043a extends continuously and without interruption from the object-side surface 4041 to the image-side surface 4042. The light-shielding surface 4043a gradually approaches the first optical axis 4a and then gradually moves away from the first optical axis 4a in a direction parallel to the first optical axis 4a and from the object side to the image side.
[0071] The light-shielding sheet 404a further includes multiple additives 4045 of specific shapes. The additives 4045 of specific shapes are evenly distributed within the light-shielding sheet 404a.
[0072] <Fifth Embodiment>
[0073] Please refer to Figures 11 to 14, wherein Figure 11 is a perspective view of the turning camera module according to the fifth embodiment of the present invention, Figure 12 is a top view of the turning camera module of Figure 11, Figure 13 is a side view of the turning camera module of Figure 12 cut along line segment II, and Figure 14 is an enlarged view of the JJ region of Figure 13.
[0074] This embodiment provides a tilting camera module 5. The tilting camera module 5 has a first optical axis 5a and a second optical axis 5b sequentially from the object side to the image side.
[0075] The deflecting camera module 5 includes a light deflecting element 501, an object-side lens 502, and an image-side lens 503. The light deflecting element 501 is a prism, but this invention is not limited thereto. The object-side lens 502 is a single lens, while the image-side lens 503 is a single lens group, but this invention is not limited thereto. Note that partial outlines of the object-side lens 502 and the image-side lens 503 have been omitted.
[0076] The light-deflecting element 501 has a reflective surface 5010. The reflective surface 5010 deflects the first optical axis 5a to the second optical axis 5b. The first optical axis 5a passes through the object-side lens 502, and the second optical axis 5b passes through the image-side lens 503 and reaches the imaging plane IMG.
[0077] The object-side lens 502 has multiple optical surfaces 5021a and 5021b. Optical surfaces 5021a and 5021b are correspondingly disposed on the reflecting surface 5010 along the first optical axis 5a, and the first optical axis 5a passes through optical surfaces 5021a and 5021b. Alternatively, optical surface 5021a faces away from the reflecting surface 5010 on the first optical axis 5a, and optical surface 5021b faces the reflecting surface 5010 on the first optical axis 5a.
[0078] The deflecting camera module 5 further includes a light-shielding layer 504b. The light-shielding layer 504b is disposed on the object side of the reflecting surface 5010 and between the optical surfaces 5021a, 5021b and the reflecting surface 5010. The light-shielding layer 504b is attached to the light-incident surface of the light-deflecting element 501 near the object-side lens 502.
[0079] The light-shielding layer 504b includes an object-side surface 5041, an image-side surface 5042, a light-shielding portion 5043, and a light-passing port 5044. The object-side surface 5041 faces the object side. The image-side surface 5042 is disposed opposite to the object-side surface 5041 and faces the reflecting surface 5010. The light-shielding portion 5043 connects the object-side surface 5041 and the image-side surface 5042. The light-shielding portion 5043 is disposed toward the first optical axis 5a. The light-shielding portion 5043 is closer to the first optical axis 5a than the image-side lens 503.
[0080] The light-shielding part 5043 has a light-shielding surface 5043a surrounding the first optical axis 5a. The light-transmitting port 5044 is defined by the light-shielding surface 5043a of the light-shielding part 5043.
[0081] The light-shielding surface 5043a of the light-shielding portion 5043 extends continuously and without interruption towards the object-side surface 5041 and the image-side surface 5042. Alternatively, it can be said that the light-shielding surface 5043a extends continuously and without interruption from the object-side surface 5041 to the image-side surface 5042. The light-shielding surface 5043a gradually approaches the first optical axis 5a in a direction parallel to the first optical axis 5a and from the object side to the image side.
[0082] The light-shielding layer 504b further includes multiple shape-specific additives 5045. The shape-specific additives 5045 are evenly distributed within the light-shielding layer 504b.
[0083] The distance between the image-side surface 5042 of the light-shielding layer 504b closest to the reflecting surface 5010 and the reflecting surface 5010 on the first optical axis 5a is Db. The distance between the optical surface 5021b, which is closest to the reflecting surface 5010, and the reflecting surface 5010 on the first optical axis 5a is Do, which satisfies the following conditions: Db = 2.88 mm; Do = 4.96 mm; and Db / Do = 0.58. Note that both Db and Do are calculated based on the point where the reflecting surface 5010 and the optical surface 5021b intersect on the first optical axis 5a.
[0084] Without affecting imaging, the light-shielding layer 504b in this embodiment can be replaced with different types of light-shielding layers. Please refer to the sixth embodiment for further details.
[0085] <Sixth Embodiment>
[0086] Please refer to Figures 15 to 17, wherein Figure 15 is a perspective view of the light-deflecting element and the light-shielding layer of the deflecting camera module according to the sixth embodiment of the present invention, Figure 16 is a top view of the light-shielding layer in Figure 15, and Figure 17 is a side view of the light-shielding layer in Figure 16 cut along the KK line segment and an enlarged view of its LL region.
[0087] The following describes the light-shielding layer 604b that can replace the light-shielding layer 504b in the fifth embodiment. Please note that the turning camera module 6 in this embodiment is similar to the turning camera module 5 in the fifth embodiment; therefore, the following description will only focus on the differences, along with necessary details.
[0088] The light-shielding layer 604b is attached to the light-incident surface of the light-deflecting element 601.
[0089] The light-shielding layer 604b includes an object-side surface 6041, an image-side surface 6042, a light-shielding portion 6043, and a light-transmitting port 6044. The object-side surface 6041 faces the object side. The image-side surface 6042 is disposed opposite to the object-side surface 6041. The light-shielding portion 6043 connects the object-side surface 6041 and the image-side surface 6042.
[0090] The light-shielding part 6043 has a light-shielding surface 6043a surrounding the first optical axis 6a. The light-transmitting port 6044 is defined by the light-shielding surface 6043a of the light-shielding part 6043.
[0091] The light-shielding surface 6043a of the light-shielding portion 6043 extends continuously and without interruption towards the object-side surface 6041 and the image-side surface 6042. Alternatively, it can be said that the light-shielding surface 6043a extends continuously and without interruption from the object-side surface 6041 to the image-side surface 6042. The light-shielding surface 6043a gradually approaches the first optical axis 6a in a direction parallel to the first optical axis 6a and from the object side to the image side.
[0092] The light-shielding layer 604b further includes multiple additives 6045 of specific shapes. The additives 6045 of specific shapes are evenly distributed within the light-shielding layer 604b.
[0093] Referring to Figures 15 and 16, the light-shielding portion 6043 further comprises multiple arc-shaped structures 6043b in a direction perpendicular to the first optical axis 6a. The arc-shaped structures 6043b extend along a direction from the light-shielding surface 6043a toward the first optical axis 6a. The arc-shaped structures 6043b are integrally formed with the light-shielding portion 6043, but this invention is not limited thereto.
[0094] The radius of curvature of the arc-shaped structure 6043b in the direction perpendicular to the first optical axis 6a is R near the object-side surface 6041, which satisfies the following condition: R = 0.25 mm.
[0095] As shown in Figures 15 and 16, the arc-shaped structure 6043b is arranged along the full circumference of the inner edge of the light-shielding portion 6043 in a direction perpendicular to the first optical axis 6a. However, the present invention is not limited thereto; please refer to the seventh embodiment.
[0096] <Seventh Embodiment>
[0097] Please refer to Figures 18 to 20, wherein Figure 18 is a three-dimensional schematic diagram of the light-deflecting element and the light-shielding layer of the deflecting camera module according to the seventh embodiment of the present invention, Figure 19 is a top view of the light-shielding layer of Figure 18, and Figure 20 is a side view of the light-shielding layer of Figure 19 cut along the MM line segment and an enlarged schematic diagram of its NN region.
[0098] The following describes the light-shielding layer 704b that can replace the light-shielding layer 504b in the fifth embodiment. Please note that the turning camera module 7 in this embodiment is similar to the turning camera module 5 in the fifth embodiment; therefore, the following description will only focus on the differences, along with necessary details.
[0099] The light-shielding layer 704b is attached to the light-incident surface of the light-deflecting element 701.
[0100] The light-shielding layer 704b includes an object-side surface 7041, an image-side surface 7042, a light-shielding portion 7043, and a light-transmitting port 7044. The object-side surface 7041 faces the object side. The image-side surface 7042 is disposed opposite to the object-side surface 7041. The light-shielding portion 7043 connects the object-side surface 7041 and the image-side surface 7042.
[0101] The light-shielding portion 7043 is generally elongated. The light-shielding portion 7043 has a light-shielding surface 7043a facing the first optical axis 7a. The light-transmitting port 7044 is defined by the light-shielding surface 7043a of the light-shielding portion 7043.
[0102] The light-shielding surface 7043a of the light-shielding portion 7043 extends continuously and without interruption towards the object-side surface 7041 and the image-side surface 7042. Alternatively, it can be said that the light-shielding surface 7043a extends continuously and without interruption from the object-side surface 7041 to the image-side surface 7042. The light-shielding surface 7043a gradually approaches the first optical axis 7a in a direction parallel to the first optical axis 7a and from the object side to the image side.
[0103] The light-shielding layer 704b further contains multiple additives 7045 of specific shapes. The additives 7045 of specific shapes are evenly distributed within the light-shielding layer 704b.
[0104] Referring to Figures 18 and 19, the light-shielding portion 7043 further comprises multiple arc-shaped structures 7043b in a direction perpendicular to the first optical axis 7a. The arc-shaped structures 7043b extend along a direction from the light-shielding surface 7043a toward the first optical axis 7a. The arc-shaped structures 7043b are integrally formed with the light-shielding portion 7043, but this invention is not limited thereto.
[0105] The radius of curvature of the arc-shaped structure 7043b in the direction perpendicular to the first optical axis 7a is R near the object-side surface 7041, which satisfies the following condition: R = 0.16 mm.
[0106] As shown in Figures 18 and 19, the arc-shaped structure 7043b is substantially arranged in a straight line in the directions perpendicular to the first optical axis 7a and the second optical axis 7b. However, the present invention is not limited thereto; please refer to the eighth embodiment.
[0107] <Eighth Embodiment>
[0108] Please refer to Figures 21 to 23. Figure 21 is a three-dimensional schematic diagram of the light-deflecting element and the light-shielding layer of the deflecting camera module according to the eighth embodiment of the present invention. Figure 22 is a top view of the light-shielding layer in Figure 21. Figure 23 is a side view of the light-shielding layer in Figure 22 cut along the OO line segment and an enlarged view of its PP area.
[0109] The following describes the light-shielding layer 804b that can replace the light-shielding layer 504b in the fifth embodiment. Please note that the turning camera module 8 in this embodiment is similar to the turning camera module 5 in the fifth embodiment; therefore, the following description will only focus on the differences, along with necessary details.
[0110] The light-shielding layer 804b is attached to the light-incident surface of the light-deflecting element 801.
[0111] The light-shielding layer 804b includes an object-side surface 8041, an image-side surface 8042, a light-shielding portion 8043, and a light-transmitting port 8044. The object-side surface 8041 faces the object side. The image-side surface 8042 is disposed opposite to the object-side surface 8041. The light-shielding portion 8043 connects the object-side surface 8041 and the image-side surface 8042.
[0112] The light-shielding part 8043 has a light-shielding surface 8043a surrounding the first optical axis 8a. The light-transmitting port 8044 is defined by the light-shielding surface 8043a of the light-shielding part 8043.
[0113] The light-shielding surface 8043a of the light-shielding portion 8043 extends continuously and without interruption towards the object-side surface 8041 and the image-side surface 8042. Alternatively, it can be said that the light-shielding surface 8043a extends continuously and without interruption from the object-side surface 8041 to the image-side surface 8042. The light-shielding surface 8043a gradually approaches the first optical axis 8a in a direction parallel to the first optical axis 8a and from the object side to the image side.
[0114] The light-shielding layer 804b further contains multiple additives 8045 of specific shapes. The additives 8045 of specific shapes are evenly distributed within the light-shielding layer 804b.
[0115] Referring to Figures 21 and 22, the light-shielding portion 8043 further comprises multiple arc-shaped structures 8043b in a direction perpendicular to the first optical axis 8a. The arc-shaped structures 8043b extend along a direction from the light-shielding surface 8043a toward the first optical axis 8a. The arc-shaped structures 8043b are integrally formed with the light-shielding portion 8043, but this invention is not limited thereto.
[0116] The radii of curvature of the arc-shaped structure 8043b in the direction perpendicular to the first optical axis 8a, near the object-side surface 8041, are R and R', which satisfy the following conditions: R = 0.20 mm; and R' = 0.22 mm, as shown in Figure 22.
[0117] As shown in Figures 21 and 22, the arc-shaped structures 8043b are arranged along the entire circumference of the inner edge of the light-shielding portion 8043 in a direction perpendicular to the first optical axis 8a. The arc-shaped structures 8043b are substantially arranged in a straight line on one side near the light-emitting surface of the light-transforming element 801 (i.e., the side with the radius of curvature R), while they are substantially arranged in an arc shape on the other three sides (i.e., the side with the radius of curvature R'). However, the present invention is not limited thereto; please continue to refer to the ninth embodiment.
[0118] <Ninth Embodiment>
[0119] Please refer to Figure 24, which is a top view schematic diagram of the light-blocking layer of the light-blocking element of the camera module according to the ninth embodiment of the present invention.
[0120] The following describes the light-shielding layer 904b that can replace the light-shielding layer 804b in the eighth embodiment. Please note that the turning camera module 9 in this embodiment is similar to the turning camera module 8 in the eighth embodiment; therefore, the following description will only focus on the differences, along with necessary details.
[0121] The light-shielding part 9043 has a light-shielding surface 9043a surrounding the first optical axis 9a. The light-transmitting port 9044 is defined by the light-shielding surface 9043a of the light-shielding part 9043.
[0122] Referring to Figure 24, the light-shielding portion 9043 further has multiple arc-shaped structures 9043b in a direction perpendicular to the first optical axis 9a. The arc-shaped structures 9043b extend in a direction from the light-shielding surface 9043a toward the first optical axis 9a. The arc-shaped structures 9043b are integrally formed with the light-shielding portion 9043, but the present invention is not limited thereto.
[0123] The radii of curvature of the arc-shaped structure 9043b in the direction perpendicular to the first optical axis 9a, near the object-side surface 9041, are R and R', which satisfy the following conditions: R = 0.33 mm; and R' = 0.21 mm. As shown in Figure 24, the radii of curvature of the arc-shaped structure 9043b are different for each case. Here, only the maximum and minimum radii of curvature R and R' are used for illustration, but the present invention is not limited thereto.
[0124] As shown in Figure 24, the arc-shaped structure 9043b is arranged along the full circumference of the inner edge of the light-shielding portion 9043 in a direction perpendicular to the first optical axis 9a. However, the present invention is not limited thereto; please refer to the tenth embodiment.
[0125] <Tenth Embodiment>
[0126] Please refer to Figure 25, which is a top view schematic diagram of the light-blocking layer of the light-blocking element of the camera module according to the tenth embodiment of the present invention.
[0127] The following describes the light-shielding layer 1004b that can replace the light-shielding layer 804b in the eighth embodiment. Please note that the turning camera module 10 in this embodiment is similar to the turning camera module 8 in the eighth embodiment, so the following description will only focus on the differences.
[0128] The light-shielding portion 10043 is located on three sides of the first optical axis 10a. The light-shielding portion 10043 has a light-shielding surface 10043a facing the first optical axis 10a. The light-transmitting port 10044 is defined by the light-shielding surface 10043a of the light-shielding portion 10043.
[0129] Referring to Figure 25, the light-shielding portion 10043 further has multiple arc-shaped structures 10043b in a direction perpendicular to the first optical axis 10a. The arc-shaped structures 10043b extend in a direction from the light-shielding surface 10043a toward the first optical axis 10a. The arc-shaped structures 10043b are integrally formed with the light-shielding portion 10043, but the present invention is not limited thereto.
[0130] The radius of curvature of the arc-shaped structure 10043b in the direction perpendicular to the first optical axis 10a is R near the object-side surface 10041, which satisfies the following condition: R = 0.16 mm.
[0131] As shown in Figure 25, the arc-shaped structures 10043b are arranged along the contour of the inner edge of the light-shielding portion 10043 in a direction perpendicular to the first optical axis 10a. They are substantially arranged in a straight line on opposite sides of the light-transmitting port 10044 in a direction parallel to the second optical axis 10b, and substantially arranged in a straight line on one side of the light-transmitting port 10044 in a direction perpendicular to the second optical axis 10b. However, the present invention is not limited thereto.
[0132] <Eleventh Embodiment>
[0133] Please refer to Figures 26 and 27, where Figure 26 is a side cross-sectional view of the tilting camera module according to the eleventh embodiment of the present invention, and Figure 27 is an enlarged view of a portion of the tilting camera module of Figure 26 and its QQ area.
[0134] This embodiment provides a tilting camera module 11. The tilting camera module 11 has a first optical axis 11a and a second optical axis 11b sequentially from the object side to the image side.
[0135] The deflection camera module 11 includes a light deflection element 1101, an object-side lens 1102, and an image-side lens 1103. The light deflection element 1101 is a prism, but this is not a limitation of the invention. The object-side lens 1102 is a single lens, while the image-side lens 1103 is a single lens group, but this is not a limitation of the invention. Note that partial outlines of the object-side lens 1102 and the image-side lens 1103 have been omitted.
[0136] The light-deflecting element 1101 has a reflective surface 11010. The reflective surface 11010 deflects the first optical axis 11a to the second optical axis 11b. The first optical axis 11a passes through the object-side lens 1102, and the second optical axis 11b passes through the image-side lens 1103 and reaches the imaging plane IMG.
[0137] The object-side lens 1102 has multiple optical surfaces 11021a and 11021b. Optical surfaces 11021a and 11021b are correspondingly disposed on the reflecting surface 11010 along the first optical axis 11a, and the first optical axis 11a passes through optical surfaces 11021a and 11021b. Alternatively, optical surface 11021a faces away from the reflecting surface 11010 along the first optical axis 11a, and optical surface 11021b faces the reflecting surface 11010 along the first optical axis 11a.
[0138] The tilting camera module 11 further includes a light-shielding layer 1104b. The light-shielding layer 1104b is disposed on the object side of the reflective surface 11010 and between the optical surfaces 11021a and 11021b and the reflective surface 11010. The light-shielding layer 1104b is attached to the optical surface 11021b and extends in a direction parallel to and toward the first optical axis 11a.
[0139] The light-shielding layer 1104b includes an object-side surface 11041, an image-side surface 11042, a light-shielding portion 11043, and a light-passing port 11044. The object-side surface 11041 faces the object side. The image-side surface 11042 is disposed opposite to the object-side surface 11041 and faces the reflecting surface 11010. The light-shielding portion 11043 connects the object-side surface 11041 and the image-side surface 11042. The light-shielding portion 11043 is disposed toward the first optical axis 11a. The light-shielding portion 11043 is closer to the first optical axis 11a than the image-side lens 1103.
[0140] The light-shielding part 11043 has a light-shielding surface 11043a surrounding the first optical axis 11a. The light-transmitting port 11044 is defined by the light-shielding surface 11043a of the light-shielding part 11043.
[0141] The light-shielding surface 11043a of the light-shielding part 11043 extends continuously toward the object-side surface 11041 and the image-side surface 11042 without any breaks, and the light-shielding surface 11043a gradually moves away from the first optical axis 11a in a direction parallel to the first optical axis 11a and from the object side to the image side.
[0142] The deflecting camera module 11 further includes a drive unit 1105. The drive unit 1105 provides the light deflecting element 1101 with a rotation axis 11051 and the degree of freedom to rotate about the rotation axis 11051.
[0143] The height of the light-shielding layer 1104b in the direction parallel to the first optical axis 11a is h1, and the height difference of the optical surface 11021b to which the light-shielding layer 1104b is attached in the direction parallel to the first optical axis 11a is h2, which satisfies the following conditions: h1 = 0.071 mm; h2 = 0.100 mm; and h1 / h2 = 0.71.
[0144] The distance between the image-side surface 11042 of the light-shielding layer 1104b closest to the reflecting surface 11010 and the reflecting surface 11010 on the first optical axis 11a is Db. The distance between the optical surface 11021b, which is closest to the reflecting surface 11010, and the reflecting surface 11010 on the first optical axis 11a is Do, which satisfies the following conditions: Db = 4.93 mm; Do = 4.96 mm; and Db / Do = 0.99. Note that both Db and Do are calculated based on the point where the reflecting surface 11010 and the optical surface 11021b intersect at the first optical axis 11a.
[0145] <Twelfth Embodiment>
[0146] Please refer to Figures 28 and 29, wherein Figure 28 is a side cross-sectional view of the tilting camera module according to the twelfth embodiment of the present invention, and Figure 29 is an enlarged view of a part of the tilting camera module of Figure 28 and its RR region.
[0147] This embodiment provides a tilting camera module 12. The tilting camera module 12 has a first optical axis 12a and a second optical axis 12b sequentially from the object side to the image side.
[0148] The camera module 12 includes a light-deflecting element 1201, an object-side lens 1202, and an image-side lens 1203. The light-deflecting element 1201 is a reflector, but this is not a limitation of the invention. The object-side lens 1202 is a single lens, while the image-side lens 1203 is a single lens group, but this is not a limitation of the invention. Note that partial outlines of the object-side lens 1202 and the image-side lens 1203 have been omitted.
[0149] The light-deflecting element 1201 has a reflective surface 12010. The reflective surface 12010 deflects the first optical axis 12a to the second optical axis 12b. The first optical axis 12a passes through the object-side lens 1202, and the second optical axis 12b passes through the image-side lens 1203 and reaches the imaging plane IMG.
[0150] The object-side lens 1202 has multiple optical surfaces 12021a and 12021b. Optical surfaces 12021a and 12021b are correspondingly disposed on the reflecting surface 12010 along the first optical axis 12a, and the first optical axis 12a passes through optical surfaces 12021a and 12021b. Alternatively, optical surface 12021a faces away from the reflecting surface 12010 on the first optical axis 12a, and optical surface 12021b faces the reflecting surface 12010 on the first optical axis 12a.
[0151] The deflecting camera module 12 further includes a light-shielding plate 1204a. The light-shielding plate 1204a is disposed on the object side of the reflecting surface 12010 and between the optical surfaces 12021a, 12021b and the reflecting surface 12010. The light-shielding plate 1204a has an air gap between itself and the adjacent light-deflecting element 1201 and the object-side lens 1202, respectively.
[0152] The light-blocking plate 1204a includes an object-side surface 12041, an image-side surface 12042, a light-blocking portion 12043, and a light-passing port 12044. The object-side surface 12041 faces the object side. The image-side surface 12042 is disposed opposite to the object-side surface 12041 and faces the reflecting surface 12010. The light-blocking portion 12043 connects the object-side surface 12041 and the image-side surface 12042. The light-blocking portion 12043 is disposed toward the first optical axis 12a. The light-blocking portion 12043 is closer to the first optical axis 12a than the image-side lens 1203.
[0153] The light-shielding part 12043 has a light-shielding surface 12043a surrounding the first optical axis 12a. The light-transmitting port 12044 is defined by the light-shielding surface 12043a of the light-shielding part 12043.
[0154] The light-shielding surface 12043a of the light-shielding portion 12043 extends continuously and without interruption towards the object-side surface 12041 and the image-side surface 12042. Alternatively, it can be said that the light-shielding surface 12043a extends continuously and without interruption from the object-side surface 12041 to the image-side surface 12042. The light-shielding surface 12043a gradually moves away from the first optical axis 12a in a direction parallel to the first optical axis 12a and from the object side to the image side.
[0155] The light-shielding sheet 1204a further includes multiple additives 12045 of specific shapes. The additives 12045 of specific shapes are evenly distributed within the light-shielding sheet 1204a.
[0156] The distance between the image-side surface 12042 of the light-shielding plate 1204a closest to the reflecting surface 12010 and the reflecting surface 12010 on the first optical axis 12a is Db. The distance between the optical surface 12021b, which is closest to the reflecting surface 12010, and the reflecting surface 12010 on the first optical axis 12a is Do, which satisfies the following conditions: Db = 4.09 mm; Do = 4.96 mm; and Db / Do = 0.82. Note that both Db and Do are calculated based on the point where the reflecting surface 12010 and the optical surface 12021b intersect on the first optical axis 12a.
[0157] <Thirteenth Embodiment>
[0158] Please refer to Figures 30 to 33, wherein Figure 30 is a perspective view of the turning camera module according to the thirteenth embodiment of the present invention, Figure 31 is a top view of the turning camera module of Figure 30, Figure 32 is a side view of the turning camera module of Figure 31 cut along the SS line segment, and Figure 33 is an enlarged view of the TT region of Figure 32.
[0159] This embodiment provides a tilting camera module 13. The tilting camera module 13 has a first optical axis 13a and a second optical axis 13b sequentially from the object side to the image side.
[0160] The camera module 13 includes a light-deflecting element 1301, an object-side lens 1302, and an image-side lens 1303. The light-deflecting element 1301 is a prism, but this is not a limitation of the invention. The object-side lens 1302 is a single lens, while the image-side lens 1303 consists of two lens groups, but this is not a limitation of the invention. Note that partial outlines of the object-side lens 1302 and the image-side lens 1303 have been omitted.
[0161] The light-deflecting element 1301 has a reflective surface 13010. The reflective surface 13010 deflects the first optical axis 13a to the second optical axis 13b. The first optical axis 13a passes through the object-side lens 1302, and the second optical axis 13b passes through the image-side lens 1303 and reaches the imaging plane IMG.
[0162] The object-side lens 1302 has multiple optical surfaces 13021a and 13021b. The light-deflecting element 1301 has an optical surface 13011. The optical surfaces 13021a, 13021b, and 13011 are correspondingly disposed on the reflecting surface 13010 on the first optical axis 13a, and the first optical axis 13a passes through the optical surfaces 13021a, 13021b, and 13011. Alternatively, it can be said that the optical surface 13021a faces away from the reflecting surface 13010 on the first optical axis 13a, and the optical surface 13021b faces the reflecting surface 13010 on the first optical axis 13a.
[0163] The deflecting camera module 13 further includes a light-shielding plate 1304a. The light-shielding plate 1304a is disposed on the object side of the reflecting surface 13010 and between the optical surfaces 13021a, 13021b and the reflecting surface 13010. The light-shielding plate 1304a has an air gap between itself and the adjacent light-deflecting element 1301 and the object-side lens 1302, respectively.
[0164] The light-blocking plate 1304a includes an object-side surface 13041, an image-side surface 13042, a light-blocking portion 13043, and a light-passing port 13044. The object-side surface 13041 faces the object side. The image-side surface 13042 is disposed opposite to the object-side surface 13041 and faces the reflecting surface 13010. The light-blocking portion 13043 connects the object-side surface 13041 and the image-side surface 13042. The light-blocking portion 13043 is disposed toward the first optical axis 13a. The light-blocking portion 13043 is closer to the first optical axis 13a than the image-side lens 1303.
[0165] The light-shielding part 13043 has a light-shielding surface 13043a surrounding the first optical axis 13a. The light-transmitting port 13044 is defined by the light-shielding surface 13043a of the light-shielding part 13043.
[0166] The light-shielding surface 13043a of the light-shielding portion 13043 extends continuously and without interruption towards the object-side surface 13041 and the image-side surface 13042. Alternatively, it can be said that the light-shielding surface 13043a extends continuously and without interruption from the object-side surface 13041 to the image-side surface 13042. The light-shielding surface 13043a gradually moves away from the first optical axis 13a in a direction parallel to the first optical axis 13a and from the object side to the image side.
[0167] The light-shielding sheet 1304a further includes multiple additives 13045 of specific shapes. The additives 13045 of specific shapes are evenly distributed within the light-shielding sheet 1304a.
[0168] The distance between the image-side surface 13042 of the light-shielding plate 1304a closest to the reflecting surface 13010 and the reflecting surface 13010 on the first optical axis 13a is Db. The distance between the optical surface 13021a, 13021b, and 13011 closest to the reflecting surface 13010 and the reflecting surface 13010 on the first optical axis 13a is Do, which satisfies the following conditions: Db = 4.12 mm; Do = 3.68 mm; and Db / Do = 1.12. Note that both Db and Do are calculated based on the point where the reflecting surface 13010 and the optical surface 13011 intersect on the first optical axis 13a.
[0169] Without affecting imaging, the light-shielding sheet 1304a in this embodiment can be replaced with different types of light-shielding sheets, or a light-shielding layer can be set instead. Please refer to the fourteenth and fifteenth embodiments for further details.
[0170] <Fourteenth Embodiment>
[0171] Please refer to Figure 34, which is a top view schematic diagram of the light shield of the turning camera module according to the fourteenth embodiment of the present invention.
[0172] The following describes the light-shielding sheet 1404a that can be used to replace the light-shielding sheet 1304a of the thirteenth embodiment. Please note that the turning camera module 14 of this embodiment is similar to the turning camera module 13 of the thirteenth embodiment, so the following will only describe the differences along with the necessary descriptions.
[0173] The light-shielding part 14043 has a light-shielding surface 14043a surrounding the first optical axis 14a. The light-transmitting port 14044 is defined by the light-shielding surface 14043a.
[0174] Referring to Figure 34, the light-shielding portion 14043 further has multiple arc-shaped structures 14043b in a direction perpendicular to the first optical axis 14a. The arc-shaped structures 14043b extend in a direction from the light-shielding surface 14043a toward the first optical axis 14a. The arc-shaped structures 14043b are integrally formed with the light-shielding portion 14043, but the present invention is not limited thereto.
[0175] The radius of curvature of the arc-shaped structure 14043b in the direction perpendicular to the first optical axis 14a is R near the object-side surface 14041, which satisfies the following condition: R = 0.24 mm.
[0176] As shown in Figure 34, the arc-shaped structure 14043b is arranged along the full circumference of the inner edge of the light-shielding part 14043 in a direction perpendicular to the first optical axis 14a.
[0177] <Fifteenth Embodiment>
[0178] Please refer to Figures 35 to 39, wherein Figure 35 is a perspective view of the light-deflecting element and the light-shielding layer of the deflecting camera module according to the fifteenth embodiment of the present invention, Figure 36 is a side cross-sectional view of the light-deflecting element and the light-shielding layer of Figure 35, Figure 37 is a top cross-sectional view of the light-deflecting element and the light-shielding layer of Figure 36 cut along the UU line segment, Figure 38 is a top view of the light-shielding layer of Figure 37, and Figure 39 is a side cross-sectional view of the light-shielding layer of Figure 38 cut along the VV line segment and an enlarged view of its WW region.
[0179] The following describes the light-shielding layer that can be disposed in the thirteenth embodiment. Please note that the turning camera module 15 in this embodiment is similar to the turning camera module 13 in the thirteenth embodiment, so the following will only describe the differences, along with the necessary descriptions.
[0180] The light-deflecting element 1501 has an optical surface 15011. The optical surface 15011 and the reflecting surface 15010 are correspondingly disposed on the first optical axis 15a, and the first optical axis 15a passes through the optical surface 15011. Alternatively, it can be said that the optical surface 15011 faces away from the reflecting surface 15010 on the first optical axis 15a.
[0181] The camera module 15 further includes a light-shielding layer 1504b. The light-shielding layer 1504b is disposed on the object side of the reflective surface 15010 of the light-deflecting element 1501, and is disposed between the optical surface 15011 and the reflective surface 15010.
[0182] The light-shielding layer 1504b includes an object-side surface 15041, an image-side surface 15042, a light-shielding portion 15043, and a light-transmitting port 15044. The object-side surface 15041 faces the object side. The image-side surface 15042 is disposed opposite to the object-side surface 15041 and faces the reflecting surface 15010. The light-shielding portion 15043 connects the object-side surface 15041 and the image-side surface 15042.
[0183] The light-shielding part 15043 has a light-shielding surface 15043a surrounding the first optical axis 15a. The light-transmitting port 15044 is defined by the light-shielding surface 15043a of the light-shielding part 15043.
[0184] The light-shielding surface 15043a of the light-shielding portion 15043 extends continuously and without interruption towards the object-side surface 15041 and the image-side surface 15042. Alternatively, it can be said that the light-shielding surface 15043a extends continuously and without interruption from the object-side surface 15041 to the image-side surface 15042. The light-shielding surface 15043a gradually approaches the first optical axis 15a in a direction parallel to the first optical axis 15a and from the object side to the image side.
[0185] Referring to Figures 37 and 38, the light-shielding portion 15043 further comprises a plurality of arc-shaped structures 15043b in a direction perpendicular to the first optical axis 15a. The arc-shaped structures 15043b extend along a direction from the light-shielding surface 15043a toward the first optical axis 15a. The arc-shaped structures 15043b are integrally formed with the light-shielding portion 15043, but the present invention is not limited thereto.
[0186] The distance between the image-side surface 15042 of the light-shielding layer 1504b closest to the reflecting surface 15010 and the reflecting surface 15010 on the first optical axis 15a is Db', and the distance between the optical surface 15011 and the reflecting surface 15010 on the first optical axis 15a is Do', which satisfies the following conditions: Db' = 2.91 mm; Do' = 4.11 mm; and Db' / Do' = 0.71. Note that both Db' and Do' are calculated based on the point where the reflecting surface 15010 and the optical surface 15011 intersect at the first optical axis 15a. Note that the light-shielding layer 1504b of this embodiment can be provided as an additional element in the thirteenth embodiment, or the light-shielding sheet 1304a in the thirteenth embodiment can be omitted and only the light-shielding layer 1504b of this embodiment can be provided. The present invention is not limited thereto. Considering the two situations mentioned above, this embodiment uses Db' and Do' as distance markers to avoid confusion with Db and Do in the thirteenth embodiment.
[0187] The radius of curvature of the arc-shaped structure 15043b in the direction perpendicular to the first optical axis 15a is R near the object-side surface 15041, which satisfies the following condition: R = 0.16 mm.
[0188] As shown in Figures 37 and 38, the arc-shaped structure 15043b is arranged in a straight line along the four sides of the inner edge of the light-shielding part 15043 in a direction perpendicular to the first optical axis 15a. Arc-shaped structures 15043c with different radii of curvature are provided at the four corners of the light-shielding part 15043, and the radius of curvature R” of the arc-shaped structure 15043c is 1.46 mm.
[0189] <Sixteenth Embodiment>
[0190] Please refer to Figures 40 to 45, wherein Figure 40 is a perspective view of the camera module according to the sixteenth embodiment of the present invention, Figure 41 is a top view of the camera module of Figure 40, Figure 42 is a side cross-sectional view of the camera module of Figure 41 cut along the XX line segment, Figure 43 is a perspective view of the light deflection element and the light shielding layer of the camera module of Figure 42, Figure 44 is a top view of the light shielding layer of Figure 43, and Figure 45 is a side cross-sectional view of the light deflection element and the light shielding layer of Figure 43 and an enlarged view of its YY region.
[0191] This embodiment provides a tilting camera module 16. The tilting camera module 16 has a first optical axis 16a and a second optical axis 16b sequentially from the object side to the image side.
[0192] The camera module 16 includes a light-deflecting element 1601 and an image-side lens 1603. The light-deflecting element 1601 is a prism, but this invention is not limited thereto. The image-side lens 1603 consists of two lens groups, but this invention is not limited thereto. Note that a partial outline of the image-side lens 1603 has been omitted.
[0193] The light-deflecting element 1601 has a reflective surface 16010. The reflective surface 16010 deflects the first optical axis 16a to the second optical axis 16b. The second optical axis 16b passes through the image-side lens 1603 and reaches the imaging plane IMG.
[0194] The light-deflecting element 1601 has an optical surface 16011. The optical surface 16011 and the reflecting surface 16010 are correspondingly disposed on the first optical axis 16a, and the first optical axis 16a passes through the optical surface 16011. Alternatively, it can be said that the optical surface 16011 faces away from the reflecting surface 16010 on the first optical axis 16a.
[0195] The deflecting camera module 16 further includes a light-shielding layer 1604b. The light-shielding layer 1604b is disposed on the object side of the reflecting surface 16010 and between the optical surface 16011 and the reflecting surface 16010. The light-shielding layer 1604b is disposed on the light-deflecting element 1601. The light-shielding layer 1604b is partially attached to the optical surface 16011, and the light-shielding layer 1604b extends in a direction parallel to and toward the first optical axis 16a.
[0196] The light-shielding layer 1604b includes an object-side surface 16041, an image-side surface 16042, a light-shielding portion 16043, and a light-passing port 16044. The object-side surface 16041 faces the object side. The image-side surface 16042 is disposed opposite to the object-side surface 16041 and faces the reflecting surface 16010. The light-shielding portion 16043 connects the object-side surface 16041 and the image-side surface 16042. The light-shielding portion 16043 is disposed toward the first optical axis 16a. The light-shielding portion 16043 is closer to the first optical axis 16a than the image-side lens 1603.
[0197] The light-shielding part 16043 has a light-shielding surface 16043a surrounding the first optical axis 16a. The light-transmitting port 16044 is defined by the light-shielding surface 16043a of the light-shielding part 16043.
[0198] The light-shielding surface 16043a of the light-shielding portion 16043 extends continuously and without interruption towards the object-side surface 16041 and the image-side surface 16042. Alternatively, it can be said that the light-shielding surface 16043a extends continuously and without interruption from the object-side surface 16041 to the image-side surface 16042. The light-shielding surface 16043a gradually approaches the first optical axis 16a in a direction parallel to the first optical axis 16a and from the object side to the image side.
[0199] Referring to Figures 43 and 44, the light-shielding portion 16043 further comprises a plurality of arc-shaped structures 16043b in a direction perpendicular to the first optical axis 16a. The arc-shaped structures 16043b extend along a direction from the light-shielding surface 16043a toward the first optical axis 16a. The arc-shaped structures 16043b are integrally formed with the light-shielding portion 16043, but the present invention is not limited thereto.
[0200] The height of the light-shielding layer 1604b in the direction parallel to the first optical axis 16a is h1, and the height difference of the optical surface 16011 to which the light-shielding layer 1604b is attached in the direction parallel to the first optical axis 16a is h2, which satisfies the following conditions: h1 = 0.519 mm; h2 = 0.847 mm; and h1 / h2 = 0.613.
[0201] The distance between the image-side surface 16042 of the light-shielding layer 1604b closest to the reflecting surface 16010 and the reflecting surface 16010 on the first optical axis 16a is Db, and the distance between the optical surface 16011 closest to the reflecting surface 16010 and the reflecting surface 16010 on the first optical axis 16a is Do. These distances satisfy the following conditions: Db = 2.66 mm; Do = 3.73 mm; and Db / Do = 0.71. Note that both Db and Do are calculated based on the point where the reflecting surface 16010 and the optical surface 16011 intersect on the first optical axis 16a.
[0202] The radii of curvature of the arc-shaped structure 16043b in the direction perpendicular to the first optical axis 16a, near the object-side surface 16041, are R and R', which satisfy the following conditions: R = 0.2 mm; and R' = 0.23 mm, as shown in Figure 44.
[0203] As shown in Figures 43 and 44, the arc-shaped structure 16043b is arranged along the full circumference of the inner edge of the light-shielding part 16043 in a direction perpendicular to the first optical axis 16a.
[0204] <Seventeenth Embodiment>
[0205] Please refer to Figures 46 and 47, wherein Figure 46 shows a perspective view of one side of an electronic device according to the seventeenth embodiment of the present invention, and Figure 47 shows a perspective view of the other side of the electronic device of Figure 46.
[0206] In this embodiment, the electronic device 17 is a smartphone. The electronic device 17 includes multiple camera modules, a flash module 171, a focus assist module 172, an image signal processor 173, a display module (user interface) 174, and an image software processor (not shown separately).
[0207] These camera modules include an ultra-wide-angle camera module 170a, a high-resolution camera module 170b, a telephoto camera module 170c, and a telephoto camera module 170. Among them, camera module 170 is one of the turning camera modules 1 to 16 in the above embodiments.
[0208] The ultra-wide-angle camera module 170a has the function of capturing multiple scenes. Figure 48 illustrates a schematic diagram of images captured by the ultra-wide-angle camera module 170a. The maximum field of view (FOV) of the ultra-wide-angle camera module 170a corresponds to the field of view in Figure 48.
[0209] The high-resolution camera module 170b features high resolution and low distortion. The high-resolution camera module 170b can further capture a portion of the image in Figure 48. Figure 49 illustrates a schematic diagram of an image captured by the high-resolution camera module 170b.
[0210] Telephoto camera modules 170c and 170 have high magnification capabilities. They can further capture a portion of the image in Figure 49. Figure 50 illustrates an image captured by either telephoto camera module 170c or telephoto camera module 170.
[0211] When a user photographs a subject, the electronic device 17 utilizes the ultra-wide-angle camera module 170a, high-resolution camera module 170b, telephoto camera module 170c, or telephoto camera module 170 to focus the light and capture the image. It also activates the flash module 171 for supplemental lighting and uses the subject distance information provided by the focus assist module 172 for fast focusing. Furthermore, the image signal processor 173 performs image optimization processing to further enhance the image quality produced by the camera module, while also providing zoom functionality. The focus assist module 172 can employ an infrared or laser focus assist system to achieve fast focusing. The display module 174 can be a touchscreen with touch functionality, allowing manual adjustment of the shooting angle. This enables switching between different camera modules and utilizes the diverse functions of the image software processor for image capture and processing (or shooting can be performed using a physical shooting button). The image processed by the image software processor can be displayed on the display module 174.
[0212] <Eighteenth Embodiment>
[0213] Please refer to Figure 51, which is a perspective view of one side of an electronic device according to the eighteenth embodiment of the present invention.
[0214] In this embodiment, the electronic device 18 is a smartphone. The electronic device 18 includes camera modules 180, 180a, 180b, 180c, 180d, 180e, 180f, 180g, and 180h, a flash module 181, an image signal processor, a display device, and an image software processor (not shown). Camera modules 180, 180a, 180b, 180c, 180d, 180e, 180f, 180g, and 180h are all located on the same side of the electronic device 18, while the display device is located on the other side of the electronic device 18. Camera module 180 is one of the transition camera modules 1-16 described in the above embodiments.
[0215] Camera module 180 is a telephoto camera module, camera module 180a is a telephoto camera module, camera module 180b is a telephoto camera module, camera module 180c is a telephoto camera module, camera module 180d is a wide-angle camera module, camera module 180e is a wide-angle camera module, camera module 180f is an ultra-wide-angle camera module, camera module 180g is an ultra-wide-angle camera module, and camera module 180h is a Time-of-Flight (ToF) camera module. In this embodiment, camera modules 180, 180a, 180b, 180c, 180d, 180e, 180f, and 180g have different viewing angles, allowing the electronic device 18 to provide different magnification ratios to achieve optical zoom shooting effects. Furthermore, camera modules 180a and 180b are also telephoto camera modules with light-reflecting elements. Additionally, camera module 180h can acquire depth information of the image. The electronic device 18 described above includes multiple camera modules 180, 180a, 180b, 180c, 180d, 180e, 180f, 180g, and 180h as an example, but the number and configuration of the camera modules are not intended to limit the invention. When a user photographs a subject, the electronic device 18 uses camera modules 180, 180a, 180b, 180c, 180d, 180e, 180f, 180g, or 180h to focus light and capture an image, activates the flash module 181 for supplemental lighting, and performs subsequent processing in a manner similar to the aforementioned embodiments, which will not be described in detail here.
[0216] <Nineteenth Embodiment>
[0217] Please refer to Figures 52 to 54, wherein Figure 52 shows a perspective view of an electronic device according to the nineteenth embodiment of the present invention, Figure 53 shows a side view of the electronic device of Figure 52, and Figure 54 shows a top view of the electronic device of Figure 52.
[0218] In this embodiment, the electronic device 19 is a car. The electronic device 19 includes a plurality of automotive camera modules 190, and these camera modules 190 are one of the turn camera modules 1 to 16 in the above embodiments, which can be applied, for example, to a panoramic driving assistance system, a driving recorder, and a reversing camera.
[0219] As shown in Figure 52, the camera module 190 can be installed, for example, around the vehicle body to capture images of the car's surroundings, helping to identify road conditions outside the vehicle and thus enabling automated driving assistance functions. Furthermore, the images can be combined into a panoramic view through an image processing software, providing the driver with images of blind spots, allowing the driver to monitor the surroundings of the vehicle for easier driving and parking.
[0220] As shown in Figure 53, the camera module 190 can be installed, for example, below the left and right rearview mirrors. The viewing angle of the camera module 190 can be 40 degrees to 90 degrees to capture image information within the lane range on the left and right sides.
[0221] As shown in Figure 54, the camera module 190 can also be installed, for example, below the left and right rearview mirrors and inside the front and rear windshields, thereby helping the driver obtain information about the external space outside the cockpit, providing more perspectives to reduce blind spots and improve driving safety.
[0222] The camera modules 1-16 of this invention are not limited to applications in smartphones, panoramic driving assistance systems, dashcams, and reversing cameras. The camera modules 1-16 can also be applied to various mobile focusing systems as needed, and feature excellent aberration correction and good image quality. For example, the camera modules 1-16 can be widely used in electronic devices such as 3D image capture, digital cameras, mobile devices, digital tablets, smart TVs, network monitoring equipment, multi-lens devices, recognition systems, motion-sensing game consoles, and wearable devices. The aforementioned electronic devices are merely illustrative examples of practical applications of this invention and do not limit the scope of application of the camera modules of this invention.
[0223] Although the present invention has been disclosed above with reference to the foregoing embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be determined by the scope of the patent application attached to this specification.
[0224] 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16: Tilting camera module 1a, 2a, 3a, 4a, 5a, 6a, 7a, 8a, 9a, 10a, 11a, 12a, 13a, 14a, 15a, 16a: First optical axis 1b, 5b, 7b, 10b, 11b, 12b, 13b, 16b: Second optical axis 101, 501, 601, 701, 801, 1101, 1201, 1301, 1501, 1601: Light-transforming elements 1010, 5010, 11010, 12010, 13010, 15010, 16010: Reflective surface 102, 502, 1102, 1202, 1302: Object-side lens 1021a, 1021b, 5021a, 5021b, 11021a, 11021b, 12021a, 12021b, 13011, 13021a, 13021b, 15011, 16011: Optical surfaces 103, 503, 1103, 1203, 1303, 1603: Image-side lens 104a, 204a, 304a, 404a, 1204a, 1304a, 1404a: Light-blocking sheets 504b, 604b, 704b, 804b, 904b, 1004b, 1104b, 1504b, 1604b: Light-shielding layer 1041, 2041, 3041, 4041, 5041, 6041, 7041, 8041, 9041, 10041, 11041, 12041, 13041, 14041, 15041, 16041: Object-side surface 1042, 2042, 3042, 4042, 5042, 6042, 7042, 8042, 11042, 12042, 13042, 15042, 16042: Image-side surface 1043, 2043, 3043, 4043, 5043, 6043, 7043, 8043, 9043, 10043, 11043, 12043, 13043, 14043, 15043, 16043: shading part 1043a, 2043a, 3043a, 4043a, 5043a, 6043a, 7043a, 8043a, 9043a, 10043a, 11043a, 12043a, 13043a, 14043a, 15043a, 16043a: Light-shielding surfaces 3043b, 6043b, 7043b, 8043b, 9043b, 10043b, 14043b, 15043b, 15043c, 16043b: Arc-shaped structure 1044, 2044, 3044, 4044, 5044, 6044, 7044, 8044, 9044, 10044, 11044, 12044, 13044, 14044, 15044, 16044: Optical Port 1045, 2045, 3045, 4045, 5045, 6045, 7045, 8045, 12045, 13045: Shape-specific additives 1105: Drive unit 11051: Rotary shaft 17, 18, 19: Electronic devices 170, 170a, 170b, 170c, 180, 180a, 180b, 180c, 180d, 180e, 180f, 180g, 180h, 190: Camera Module 171, 181: Flash module 172: Focusing Assist Module 173: Image Signal Processor 174: Display Module Db, Db', Do, Do': Distance h1: Height h2: Height difference IMG: Imaging Surface R, R', R”: Radius of curvature AA, CC, EE, GG, II, KK, MM, OO, SS, UU, VV, XX: line segments BB, DD, FF, HH, JJ, LL, NN, PP, QQ, RR, TT, WW, YY: area
Claims
1. A deflecting camera module, having a first optical axis and a second optical axis sequentially from an object side to an image side, the deflecting camera module comprising: a light deflecting element having: a reflective surface for deflecting the first optical axis to the second optical axis; and at least one optical surface, wherein the first optical axis passes through the at least one optical surface, and the at least one optical surface is spherical or aspherical; an image-side lens, wherein the second optical axis passes through the image-side lens; and a light-shielding layer disposed on the object side of the reflective surface, the light-shielding layer comprising: an object-side surface facing the object side; an image-side surface disposed opposite to the object-side surface and facing the reflective surface; a light-shielding portion connecting the object-side surface and the image-side surface, wherein the light-shielding portion is disposed towards the first optical axis, the light-shielding portion is closer to the first optical axis than the image-side lens, and the light-shielding portion has a light-shielding surface surrounding the first optical axis; and a light-transmitting aperture defined by the light-shielding surface of the light-shielding portion; wherein... The light-shielding layer is attached to the at least one optical surface and extends in a direction parallel to the first optical axis and toward the first optical axis; wherein, the height of the light-shielding layer in the direction parallel to the first optical axis is h1, the height difference of the surface of the at least one optical surface to which the light-shielding layer is attached in the direction parallel to the first optical axis is h2, the distance between the surface of the light-shielding layer closest to the reflective surface and the reflective surface on the first optical axis is Db, and the distance between the surface of the at least one optical surface closest to the reflective surface and the reflective surface on the first optical axis is Do, which satisfies the following conditions: 0 < h1 / h2 < 1.2; and 0.3 < Db / Do < 2.
2. The camera module as described in claim 1, wherein the distance between the surface of the light-shielding layer closest to the reflective surface and the reflective surface on the first optical axis is Db, and the distance between the surface of the at least one optical surface closest to the reflective surface and the reflective surface on the first optical axis is Do, which satisfies the following condition: 0.5 < Db / Do < 1.
3.
3. The tilting camera module as described in claim 1 further includes an object-side lens, wherein the first optical axis passes through the object-side lens.
4. The camera module as described in claim 1, wherein the light-shielding surface of the light-shielding portion gradually approaches or moves away from the first optical axis from the object-side surface to the image-side surface.
5. The camera module as claimed in claim 1, wherein the light-shielding portion has a plurality of arcuate structures in a direction perpendicular to the first optical axis, the arcuate structures extending from the light-shielding surface toward the first optical axis, and the arcuate structures being arranged on at least one contour of the light-shielding portion.
6. The camera module as claimed in claim 5, wherein the radius of curvature of the arcuate structures near the object-side surface in a direction perpendicular to the first optical axis is R, which satisfies the following condition: 0.05 mm ≤ R < 1.7 mm.
7. The camera module as described in claim 6, wherein the radius of curvature of the arcuate structures near the object-side surface in a direction perpendicular to the first optical axis is R, which satisfies the following condition: 0.08 mm ≤ R < 1.5 mm.
8. The light-deflecting camera module as claimed in claim 1 further includes a driving device, wherein the driving device provides the light-deflecting element with a rotation axis and a degree of freedom to rotate about the rotation axis.
9. The angular camera module as described in claim 5, wherein the arcuate structures are arranged in a straight line in a direction parallel to the second optical axis.
10. A deflection camera module having a first optical axis and a second optical axis sequentially from an object side to an image side, the deflection camera module comprising: a light deflection element having a reflective surface, wherein the reflective surface is used to deflect the first optical axis to the second optical axis; an object-side lens, wherein the first optical axis passes through the object-side lens, the object-side lens having at least one optical surface, and the at least one optical surface being spherical or aspherical; and an image-side lens, wherein the second optical axis passes through the image-side lens; The reflective surface includes a light-shielding layer disposed on the object side of the reflective surface. The light-shielding layer comprises: an object-side surface facing the object side; an image-side surface opposite to the object-side surface and facing the reflective surface; a light-shielding portion connecting the object-side surface and the image-side surface, wherein the light-shielding portion is disposed towards the first optical axis, is closer to the first optical axis than the image-side lens, and has a light-shielding surface surrounding the first optical axis; and a light-transmitting aperture defined by the light-shielding surface of the light-shielding portion. The light-shielding layer is attached to the at least one optical surface and extends in a direction parallel to the first optical axis and toward the first optical axis; wherein the light-shielding portion has a plurality of arc-shaped structures in a direction perpendicular to the first optical axis, the arc-shaped structures extending from the light-shielding surface toward the first optical axis, and the arc-shaped structures are arranged on the entire contour of at least one side of the light-shielding portion.
11. The tilting camera module as described in claim 10, wherein the distance between the surface of the light-shielding layer closest to the reflective surface and the reflective surface on the first optical axis is Db, and the distance between the surface of the at least one optical surface closest to the reflective surface and the reflective surface on the first optical axis is Do, which satisfies the following condition: 0.3 < Db / Do < 2.
12. The tilting camera module as described in claim 11, wherein the distance between the surface of the light-shielding layer closest to the reflective surface and the reflective surface on the first optical axis is Db, and the distance between the surface of the at least one optical surface closest to the reflective surface and the reflective surface on the first optical axis is Do, which satisfies the following condition: 0.5 < Db / Do < 1.
3.
13. The camera module as described in claim 10, wherein the light-shielding surface of the light-shielding portion gradually approaches or moves away from the first optical axis from the object-side surface to the image-side surface.
14. The camera module as claimed in claim 10, wherein the radius of curvature of the arcuate structures near the object-side surface in a direction perpendicular to the first optical axis is R, which satisfies the following condition: 0.05 mm ≤ R < 1.7 mm.
15. The camera module as claimed in claim 14, wherein the radius of curvature of the arcuate structures near the object-side surface in a direction perpendicular to the first optical axis is R, which satisfies the following condition: 0.08 mm ≤ R < 1.5 mm.
16. The tilting camera module as claimed in claim 10, wherein the light-shielding surface of the light-shielding portion extends continuously toward the object-side surface and the image-side surface without any breaks.
17. The tilting camera module as claimed in claim 16, wherein the light-shielding layer further comprises a plurality of shape-specific additives, and the shape-specific additives are uniformly distributed within the light-shielding layer.
18. The camera module as claimed in claim 10, wherein the height of the light-shielding layer in the direction parallel to the first optical axis is h1, and the height difference of the surface of the at least one optical surface to which the light-shielding layer is attached in the direction parallel to the first optical axis is h2, which satisfies the following condition: 0 < h1 / h2 < 1.
2.
19. The light-deflecting camera module as claimed in claim 10 further includes a drive mechanism, wherein the drive mechanism provides the light-deflecting element with a rotation axis and a degree of freedom to rotate about the rotation axis.
20. The angular camera module as described in claim 10, wherein the arcuate structures are arranged in a straight line in a direction parallel to the second optical axis.
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