CN212850689U - Camera module and terminal equipment - Google Patents
Camera module and terminal equipment Download PDFInfo
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- CN212850689U CN212850689U CN202021553509.6U CN202021553509U CN212850689U CN 212850689 U CN212850689 U CN 212850689U CN 202021553509 U CN202021553509 U CN 202021553509U CN 212850689 U CN212850689 U CN 212850689U
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Abstract
The utility model provides a camera module and terminal equipment, the camera module includes camera subassembly and light source subassembly, the light source subassembly includes light-emitting component and leaded light component, leaded light component is used for guiding the light that light-emitting component produced, carries out the light filling to the camera subassembly; the camera assembly comprises an optical lens, the light source assembly is provided with a light emitting surface, and a plane where the light emitting surface is located is intersected with an optical axis of the optical lens. Through setting up the plane at play plain noodles place to intersect with the optical axis, the object can be shone from the side direction to the light that makes the light source subassembly produce to carry out effectual light filling for the camera, and then improve the imaging quality of camera module.
Description
Technical Field
The utility model relates to a camera module and terminal equipment.
Background
With the development of terminal devices such as mobile phones and tablet computers, the shooting function of the terminal devices is more and more powerful. At present, a terminal device can be configured with a plurality of cameras, such as a main camera, a telephoto camera, a wide-angle camera, a 3D depth camera, a macro camera, a microscope camera, and the like, so as to meet the shooting requirements of users in different scenes. The formation of image quality of camera and photosensitive element gather the light quantity closely relevant to the microscope camera is the example, the distance of microscope camera with treating to shoot the object usually when shooting is very close, the transparent cover plate of camera is direct and the object laminating even, traditional light filling scheme sets up the light filling lamp of a luminous direction and optical axis parallel, the light filling lamp can't carry out effectual positive light filling under the extremely close distance, and then can influence the formation of image quality of camera.
SUMMERY OF THE UTILITY MODEL
The utility model provides an improve camera module and terminal equipment of light filling effect.
The utility model provides a camera module, which comprises a camera component and a light source component, wherein the light source component comprises a light-emitting element and a light guide element, and the light guide element is used for guiding the light generated by the light-emitting element and supplementing the light to the camera component; the camera assembly comprises an optical lens, the photosensitive element is provided with a light-emitting surface, and a plane where the light-emitting surface is located is intersected with an optical axis of the optical lens.
Further, the light guide element includes a first reflective surface and a second reflective surface, the light emitting surface is located between the first reflective surface and the second reflective surface, and the first reflective surface and the second reflective surface are used for reflecting the light generated by the light emitting element to the light emitting surface.
Further, the light guide element comprises a third reflecting surface, and the third reflecting surface is connected with the first reflecting surface and the second reflecting surface; the first reflecting surface and the second reflecting surface are parallel and opposite to each other.
Further, the light emitting element is disposed in the light guiding element, and a light emitting direction of the light emitting element points to the first reflecting surface or the second reflecting surface.
Further, the camera module comprises a shading element, the shading element is provided with a first opening and a second opening, the camera assembly receives reflected light of an object through the first opening and images according to the reflected light of the object, and the light source assembly is at least partially located in the second opening.
Further, the distance between the first opening and the second opening is 1-5 cm, and the angle formed by the plane where the light emitting surface is located and the optical axis of the optical lens is 50-85 degrees.
Furthermore, the camera module comprises a transparent cover plate covering the lens assembly, and the shading element is arranged between the transparent cover plate and the camera assembly; the transparent cover plate is provided with an outer surface back to the camera assembly, and the light emergent surface protrudes out of the outer surface of the transparent cover plate.
Further, the camera module comprises a shell, and the transparent cover plate is positioned between the shell and the shading element; the housing has a third opening facing the first and second openings, and the light emitting surface is located in the third opening.
Further, the camera module comprises a plurality of light source assemblies, and the plurality of light source assemblies are arranged along the circumferential direction of the camera module.
The utility model also provides a terminal equipment, terminal equipment includes as before the camera module.
Through setting up the plane at play plain noodles place to intersect with the optical axis, the object can be shone from the side direction to the light that makes the light source subassembly produce to carry out effectual light filling for the camera, and then improve the imaging quality of camera module.
Drawings
Fig. 1 is a schematic side view of a camera module according to a first embodiment of the present invention.
Fig. 2 is a schematic side view of a light source assembly of the camera module shown in fig. 1.
Fig. 3 is a schematic side view of a camera module according to a second embodiment of the present invention.
Fig. 4 is a schematic side view of a camera module according to a third embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The utility model provides a camera module, which comprises a camera component and a light source component, wherein the light source component comprises a light-emitting element and a light guide element, and the light guide element is used for guiding the light generated by the light-emitting element and supplementing the light to the camera component; the camera assembly comprises an optical lens, the light source assembly is provided with a light-emitting surface, and a plane where the light-emitting surface is located is obliquely crossed with an optical axis of the optical lens.
Referring to fig. 1 and 2, the camera module of the present embodiment includes a camera assembly 1, a light source assembly 2, and a transparent cover plate 3 covering the camera assembly 1. The light source assembly 2 is used for supplementing light to the camera assembly 1 and increasing the light quantity of reflected light entering the camera assembly so as to improve the imaging quality of the camera assembly 1; the transparent cover plate 3 is used for protecting the camera assembly 1 and preventing dust or foreign matters from entering the camera assembly 1.
The camera assembly 1 includes an optical lens 11 and a photosensitive element 12. The number of the optical lenses 11 may be one or more, and the light sensing element 12 is a CMOS (complementary metal oxide semiconductor) element or a CCD (charge coupled device) element. In this embodiment, the optical lens 11 is a micro lens, and the number of the optical lenses is one, and the light sensing element 12 is a CMOS element. The reflected light of the object 200 enters the light-sensing surface of the light-sensing element 12 from the optical lens 11 (the surface of the light-sensing element 12 facing the optical lens 11), and the light-sensing element 12 performs imaging according to the received object reflected light.
The light source assembly 2 is disposed on one side of the camera assembly 1 in a transverse direction X, the transverse direction X is perpendicular to an optical axis L of the optical lens 11, and the longitudinal direction Y is parallel to or coincident with the optical axis L. In vertical Y, light source subassembly 2 can align with camera subassembly 1, also can not align, and in this embodiment, light source subassembly 2 is closer to transparent cover 3 than camera subassembly 1. The light source assembly 2 includes a light emitting element 21 and a light guiding element 22, and the light guiding element 22 is configured to guide light generated by the light emitting element 21 and supplement light to the camera assembly 1.
The light guide element 22 includes a light emitting surface 220, a first reflecting surface 221 and a second reflecting surface 222, wherein the light emitting surface 220 is located between the first reflecting surface 221 and the second reflecting surface 222. The first reflecting surface 221 and the second reflecting surface 222 are parallel and opposite to each other, which is beneficial to shortening the light path and reducing the light loss. The light emitting direction of the light emitting element 21 points to the first reflecting surface 221, and light generated by the light emitting element 21 is reflected by the first reflecting surface 221 and the second reflecting surface 222 and is guided out from the light emitting surface 220 to irradiate a shot object, so that light supplement for the camera assembly is realized. It should be noted that the light finally guided out from the light exit surface 220 may be reflected by the first reflection surface 221 and the second reflection surface 222 multiple times, or may be reflected by the first reflection surface 221 only a single time.
The plane of the light emitting surface 220 intersects with the optical axis L of the optical lens 11, and an angle β formed by the plane of the light emitting surface 220 and the optical axis L of the optical lens is greater than 0 ° and not greater than 90 °. In this embodiment, a plane where the light emitting surface 220 is located is oblique to the optical axis L of the optical lens 11, and the light emitting surface 220 may directly face the object 200, so that light generated by the light source assembly 2 can illuminate a relatively large area, especially an area within an alpha range of a Field of View (FOV) of the camera assembly 1, thereby obtaining a good light compensation effect and improving the imaging quality of the camera assembly 1.
Preferably, the light guide element 22 further includes a third reflective surface 223, and the third reflective surface 223 connects the first reflective surface 221 and the second reflective surface 222. The third reflecting surface 223 can reflect the light rays irradiated thereon, so that the light rays are reflected to the first reflecting surface 221 and the second reflecting surface 222, and then can be guided out from the light emitting surface 220, so that the light loss is reduced, the light supplement brightness is increased, and the imaging quality is improved; on the other hand, if the third reflecting surface 223 is not provided, the light generated by the light emitting element 21 can be emitted from the side where the third reflecting surface 223 is located, and part of the emitted light can enter the camera assembly 1, so that the third reflecting surface 223 can also prevent the light generated by the light source assembly 2 from entering the camera assembly 1 and affecting the imaging quality. Optionally, except for the light emitting surface 220, other side surfaces of the light guiding element 22 may be set as reflective surfaces, so as to minimize light loss.
In this embodiment, the light emitting element 21 is disposed in the light guide element 22, so that light generated by the light emitting element 21 can completely enter the light guide element 22, light loss is further reduced, fill-in luminance is increased, and imaging quality is improved. In this embodiment, the light emitting direction of the light emitting element 21 is directed to the first reflecting surface 221; in other embodiments, the light emitting direction of the light emitting element 21 may be directed to other reflective surfaces, such as the second reflective surface 222 or the third reflective surface 223.
The main body 201 of the light guide element 21 is made of glass or transparent plastic, and the first reflecting surface 221 and the second reflecting surface 222 can be formed by a reflective coating 202 sprayed on the outer surface of the main body, and the material of the reflective coating 202 is, for example, silver.
In this embodiment, one end of the light guide element 22 (or the light emitting surface 220) far away from the camera assembly 1 is flush with the outer surface 30 (the surface facing away from the camera assembly) of the transparent cover plate 3, so that the outer surface 30 of the transparent cover plate 3 can be directly abutted to the surface of the object 200, the distance between the camera assembly 1 and the object 200 can be as short as several millimeters, microscopic shooting is realized, and the light emitting surface 220 of the light source assembly 2 faces the object 200, so that front light supplement is realized.
The camera module further comprises a shading element 4 arranged between the transparent cover plate 3 and the camera assembly 1, the shading element 4 comprises a first opening 41 and a second opening 42, and the camera assembly 1 receives reflected light of the object 200 through the first opening 41 and forms images according to the reflected light. The light source assembly 2 is at least partially located in the second opening 42 and partially protrudes into the transparent cover plate 3, and correspondingly, the transparent cover plate 3 is provided with a corresponding opening (not shown).
In the present embodiment, the distance between the first opening 41 and the second opening 42 (which may also be regarded as the lateral distance between the camera head assembly and the light source assembly) is 1-5 cm, and the "distance" herein may be understood as the distance between the geometric centers of the first opening 41 and the second opening 42; an angle β formed by a plane of the light emitting surface 220 and the optical axis L of the optical lens 11 is 50 to 85 °. At this angle and distance, it is ensured that the area (which can be understood as the illumination area of the light source assembly) that can be illuminated by the light generated by the light source assembly 2 is substantially coincident with the area (which can be understood as the shooting area of the camera assembly) within the field angle α of the camera assembly 1 (if the illumination area is too large, the light is scattered, which may cause the brightness value of the shooting area to be too low, thereby affecting the imaging quality), and that the area can be illuminated while having a certain brightness value, thereby improving the imaging quality. In other embodiments, the angle formed by the plane where the light-emitting surface 220 is located and the optical axis L of the optical lens 11 may be other angles, and correspondingly, the distance between the first opening 41 and the second opening 42 should be adaptively adjusted to ensure the light compensation effect. Generally, the smaller the distance between the first opening 41 and the second opening 42, the smaller the angle value of the angle β formed between the plane where the light-emitting surface 220 is located and the optical axis L of the optical lens 11. In some embodiments, the plane of the light exit surface 220 may also perpendicularly intersect with the optical axis L of the optical lens 11.
Referring to fig. 3, in a second embodiment, the camera module includes a camera assembly 1, a light source assembly 2, a transparent cover plate 3, a light shielding element 4 and a housing 5, the camera assembly 1, the light shielding element 4, the transparent cover plate 3 and the housing 5 are sequentially disposed, and the structures of the camera assembly 1, the light source assembly 2, the transparent cover plate 3 and the light shielding element 4 are the same as or similar to those of the embodiment shown in fig. 1. The transparent cover 3 has an outer surface 30 facing away from the camera module 1, and the light exit surface 220 of the light guide element 22 protrudes out of the outer surface 30 of the transparent cover 3, so that light guided out from the light exit surface 220 cannot enter the transparent cover 3, and the phenomenon that light rays pass through the transparent cover 3 and enter the camera module 1 to affect the imaging quality is avoided. The housing 5 includes a third opening 50 facing the first opening 41 and the second opening 42, and the light emitting surface 220 is located in the third opening 50 and does not protrude from the housing 5, so that the housing 5 can abut against the surface of the object 200, and the distance between the camera assembly 1 and the object 200 is ensured to be small, so as to perform micro-photography.
Referring to fig. 4, the camera module includes a camera assembly 1, a light source assembly 2, a transparent cover plate 3, a light shielding element 4, and a housing 5, the camera assembly 1, the light shielding element 4, the transparent cover plate 3, and the housing 5 are sequentially disposed, and the structures of the camera assembly 1, the light source assembly 2, the transparent cover plate 3, the light shielding element 4, and the housing 5 are the same as or similar to those of the embodiment shown in fig. 3. Different from the foregoing embodiment, the quantity of light source subassembly 2 is a plurality of, and a plurality of light source subassemblies 2 are followed camera subassembly 1's circumference is arranged, carries out the light filling for camera subassembly 1 from different directions, is favorable to improving light filling luminance and degree of consistency to further improve the light filling effect. Preferably, the plurality of light source assemblies 2 are uniformly distributed along the circumferential direction of the camera assembly 1, and the angle formed by each light source assembly 2 and the optical axis L of the optical lens 11 is equal, so as to further ensure the uniformity of light supplement.
Furthermore, the utility model also provides a terminal equipment, terminal equipment includes like aforementioned arbitrary embodiment the camera module. The terminal device is, for example, an electronic device with a camera, such as a mobile phone and a tablet computer. Certainly, the terminal device further includes a display screen component, a processing component, a storage component, a communication component, a power supply component, and the like, which are not described in detail in this embodiment.
Through setting up the plane at play plain noodles place to intersect with the optical axis, the object can be shone from the side direction to the light that makes the light source subassembly produce to carry out effectual light filling for the camera, and then improve the imaging quality of camera module.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed in the above description in terms of preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can make modifications or changes to equivalent embodiments by using the above disclosed technical contents without departing from the scope of the present invention.
Claims (10)
1. A camera module is characterized by comprising a camera component and a light source component, wherein the light source component comprises a light-emitting element and a light guide element;
the camera assembly comprises an optical lens, the light guide element is provided with a light emergent surface, and a plane where the light emergent surface is located is intersected with an optical axis of the optical lens.
2. The camera module according to claim 1, wherein the light guide element comprises a first reflective surface and a second reflective surface, the light emitting surface is located between the first reflective surface and the second reflective surface, and the first reflective surface and the second reflective surface are configured to reflect the light generated by the light emitting element to the light emitting surface.
3. The camera module according to claim 2, wherein the light guide element comprises a third reflective surface, the third reflective surface connects the first reflective surface and the second reflective surface, and the first reflective surface and the second reflective surface are disposed in parallel.
4. The camera module according to claim 2, wherein the light emitting element is disposed in the light guide element, and a light emitting direction of the light emitting element is directed to the first reflecting surface or the second reflecting surface.
5. The camera module of claim 1, wherein the camera module includes a shutter element having a first opening and a second opening, the camera assembly receiving reflected light from the object through the first opening and imaging based on the reflected light from the object, the light source assembly being at least partially positioned within the second opening.
6. The camera module according to claim 5, wherein the distance between the first opening and the second opening is 1-5 cm, and an angle formed by a plane where the light emitting surface is located and an optical axis of the optical lens is 50-85 °.
7. The camera module of claim 5, wherein the camera module includes a transparent cover plate overlying the camera assembly, the shading element being disposed between the transparent cover plate and the camera assembly;
the transparent cover plate is provided with an outer surface back to the camera assembly, and the light emergent surface protrudes out of the outer surface of the transparent cover plate.
8. The camera module of claim 7, wherein the camera module comprises a housing, the transparent cover plate being positioned between the housing and the shading element;
the housing has a third opening facing the first and second openings, and the light emitting surface is located in the third opening.
9. The camera module of claim 1, wherein the camera module comprises a plurality of light source assemblies arranged along a circumference of the camera assembly.
10. A terminal device, characterized in that the terminal device comprises a camera module according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021553509.6U CN212850689U (en) | 2020-07-30 | 2020-07-30 | Camera module and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021553509.6U CN212850689U (en) | 2020-07-30 | 2020-07-30 | Camera module and terminal equipment |
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| CN212850689U true CN212850689U (en) | 2021-03-30 |
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| CN202021553509.6U Active CN212850689U (en) | 2020-07-30 | 2020-07-30 | Camera module and terminal equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113542569A (en) * | 2021-07-16 | 2021-10-22 | Oppo广东移动通信有限公司 | Camera module and electronic equipment |
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2020
- 2020-07-30 CN CN202021553509.6U patent/CN212850689U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113542569A (en) * | 2021-07-16 | 2021-10-22 | Oppo广东移动通信有限公司 | Camera module and electronic equipment |
| CN113542569B (en) * | 2021-07-16 | 2023-08-22 | Oppo广东移动通信有限公司 | Camera module and electronic equipment |
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