Camera module and wide-angle motion camera

Abstract

The utility model relates to a camera module and a wide-angle motion camera. The camera module comprises a lens and a detachably mounted lens protection lens, the lens comprises a lens barrel and a lens assembly. The lens protection lens comprises a lens base and a protection lens. The protection lens is a curved lens, and the curved lens protrudes in the direction away from the lens. The protection lens is configured to participate in the imaging process of the lens, and incident light is refracted by the protection lens and then enters the lens. According to the utility model, the protective lens is arranged to be the curved lens, so that the distance between the edge of the protective lens and the optical axis of the lens assembly is shortened, the size of the protective lens is further reduced, and the risk of collision and abrasion caused by larger size is avoided; the camera module does not shield the field angle of the lens, participates in the optical imaging process, facilitates the miniaturization of the camera module, and improves the imaging effect.

Description

Technical Field

[0001] The present disclosure relates to the technical field of consumer electronic products, and in particular to a camera module and a wide-angle sports camera. Background Art

[0002] Consumer electronic products, such as cameras, mobile phones, computers and other devices are equipped with cameras, but the cameras are directly exposed to the outside and are easily scratched, which affects the shooting quality and shortens the service life of the cameras. In the current related technologies, a protective lens is generally set on the outside of the camera to protect the camera. However, in order to pursue lightness and portability, the protective lens is often made thinner and lighter, which is not conducive to ensuring the strength of the protective lens and is prone to breakage during transportation, installation or use; and when the protective lens is made thicker, it is easy to make the light transmittance insufficient, affecting the shooting. Especially for wide-angle sports cameras, the requirements for lens protection lenses are higher. The protective lens needs to have a protective function and waterproof function for the lens. Secondly, it is also necessary to ensure that the protective lens cannot block the lens field of view, which requires the size of the protective lens to be much larger than the size of the lens body. However, due to the large size of the protective lens, the protective lens is prone to bumps and wear during the daily use of the wide-angle sports camera, resulting in scratches on the protective lens, which in turn causes the lens imaging to be blurred, reducing the user experience. Therefore, it is necessary to provide a solution so that the protective lens can meet the protection, waterproof and optical adjustment functions, and is conducive to the miniaturization of the camera module.

[0003] The disclosure of the above background technology content is only used to assist in understanding the inventive concept and technical solution of the utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Utility Model Content

[0004] The purpose of the present utility model is to provide a camera module and a wide-angle motion camera to solve at least one of the above-mentioned background technical problems.

[0005] According to a first aspect of an embodiment of the present disclosure, a camera module is provided, comprising: a lens and a detachably installed lens protection lens; wherein the lens comprises a lens barrel and a lens assembly installed in the lens barrel; the lens protection lens comprises a lens seat and a protective lens fixedly or detachably installed on the lens seat; the protective lens is a curved lens, which protrudes in a direction away from the lens; the protective lens is configured to participate in the imaging process of the lens, and the incident light is refracted by the protective lens and then incident on the lens.

[0006] Another technical solution of the utility model embodiment is:

[0007] A wide-angle motion camera comprises a housing, a circuit board arranged in the housing, and the camera module described in the above embodiment.

[0008] The beneficial effects of the technical solution of the utility model are:

[0009] Compared with the prior art, the utility model shortens the distance between the edge of the protective lens and the optical axis of the lens assembly by setting the protective lens as a curved lens, thereby reducing the size of the protective lens and avoiding the risk of bumps and wear due to its large size. At the same time, since the protective lens is a curved lens, it can also refract incident light onto the lens assembly without blocking the field of view of the lens, participating in the optical imaging process, which is conducive to the miniaturization of the camera module and improves the imaging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0011] Figure 1 This is a top view of a camera module according to an embodiment of the utility model;

[0012] Figure 2 yes Figure 1 Schematic diagram of the cross section of section AA;

[0013] Figure 3 is a schematic diagram of a camera module lens assembly according to another embodiment of the utility model;

[0014] Figure 4 It is a stereoscopic illustration of a wide-angle motion camera according to another embodiment of the utility model. DETAILED DESCRIPTION

[0015] In order to make the technical problems, technical solutions and beneficial effects to be solved by the embodiments of the utility model clearer and more understandable, and to enable people in the technical field to better understand the solutions of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0016] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for fixing or for circuit connection.

[0017] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, unless otherwise clearly specified and defined, the meaning of "multiple" is two or more, and the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0019] Reference Figure 1-Figure 2 As shown, as an embodiment of the utility model, a camera module 100 is provided, which includes a lens 10 and a detachably installed lens protection lens 20; wherein the lens 10 includes a lens barrel 101, a lens assembly 102 installed in the lens barrel, and the lens assembly includes at least one lens 1021; the lens protection lens 20 includes a lens holder 201 and a protection lens 202 fixed on the lens holder 201; the protection lens 202 is a curved lens, which protrudes in a direction away from the lens; the protection lens 202 is configured to participate in the imaging process of the lens, and the incident light is refracted by the protection lens and then incident on the lens.

[0020] Compared to the solution in which the protective lens 202 is set as a flat lens, the protective lens 202 in this embodiment is a curved lens convex in the direction away from the lens 10, and the distance between the edge of the protective lens and the optical axis of the lens assembly 102 is closer, ensuring that the size of the protective lens 202 can be smaller than that of the flat lens.

[0021] The protective lens is configured not to block the field of view of the lens 10, and the distance between the edge of the protective lens and the optical axis of the lens assembly 102 is between 15.52mm and 19.52mm, and in this embodiment is 17.72mm, with an error of ±0.05mm. Such a design can greatly reduce the size of the protective lens 202, thereby reducing the risk of the protective lens 202 being scratched or worn, and the overall imaging effect of the camera module is the best. This design parameter is the optimal design parameter obtained by the inventor of this invention through multiple tests on the application of the camera module to a wide-angle motion camera. It is difficult to achieve the best effect of the invention outside this parameter range. In some embodiments, the protective lens is configured as a tempered glass lens with strong light transmittance. In some other embodiments, the protective lens may also be a resin lens with strong light transmittance.

[0022] In some embodiments, the field of view of the camera module after the lens protective mirror is installed is greater than or equal to the field of view of the lens, that is, the lens is configured so that the field of view is less than or equal to the field of view of the camera module after the lens protective mirror is installed, thereby ensuring that the field of view of the lens is not blocked by the lens protective mirror. In some embodiments, the protective lens is configured so that the field of view of the camera module after the lens protective mirror is installed is 182.7°, with an error of ±1.5°.

[0023] In some embodiments, the protective lens is configured as a curved lens having a curvature close to that of a plane mirror, and the curvature of the curved lens is 50 mm to 60 mm with an error of ±5 mm.

[0024] It should be noted that after the incident light is refracted by the protective lens 202, it is incident on the lens assembly 102, that is, the protective lens 202 participates in the optical imaging process during shooting. Therefore, by adjusting parameters such as the curvature of the protective lens 202, the distance between the protective lens 202 and the lens assembly 102 can be reduced, so as to improve the compactness of the lens design.

[0025] In the disclosed embodiment, by setting the protective lens as a curved lens, the distance between the edge of the protective lens and the lens assembly is shorter than that of a flat lens, thereby greatly reducing the size of the protective lens and avoiding the risk of bumps and wear due to the large size of the protective lens. At the same time, the protective lens can also refract the incident light onto the lens assembly and participate in the optical imaging process. Therefore, by reasonably setting the protective lens, the distance between the protective lens and the lens assembly can be further reduced, which can simultaneously meet the protection, waterproofing and optical effects, and facilitate the miniaturization design of the camera module. It should be noted that the lens assembly includes one or more lenses. In some embodiments, the lens assembly includes at least one wide-angle lens.

[0026] In some embodiments, the lens 10 includes a wide-angle lens, the focal length of which is shorter than the diagonal length of the film or sensor of the camera module; in some implementations, the viewing angle of the wide-angle lens is greater than 53° and less than or equal to 180°.

[0027] In some embodiments, the lens protective lens 20 is detachably connected to the lens 10. By setting the lens protective lens 20 to be detachably connected to the lens 10, the protective lens 202 can be replaced separately when the protective lens 202 is damaged, thereby reducing the maintenance cost and extending the service life of the camera module. At the same time, the detachable connection between the protective lens 202 and the lens assembly 102 can also facilitate the realization of an optical ND filter (Neutral Density Filter) effect by replacing the protective lens 202 with different light transmittances.

[0028] Among them, the protective lens 202 can be configured to be detachably connected to the lens holder 201 installed on the lens barrel, or it can be configured that the protective lens 202 is fixedly connected to the lens holder 201 and the lens holder 201 is detachably installed on the lens barrel. The embodiments of the present disclosure do not impose too many restrictions on this. As long as the protective lens 202 and the lens assembly 102 can be detachably connected and the protective lens 202 can be easily replaced, it should fall within the scope of protection of this patent.

[0029] In some embodiments, the protective lens 202 is fixedly connected to the lens holder 201, and the lens holder 201 is detachably connected to the lens barrel 101. Wherein, the connection mode between the lens holder 201 and the lens barrel includes at least one of a threaded connection, a magnetic connection, and a clamping connection. In one example, the lens holder 201 is threadedly connected to the lens barrel. In another example, the lens holder 201 is clamped and magnetically connected to the lens barrel 101. In yet another example, the lens holder 201 is simultaneously connected to the lens barrel by a threaded connection, a magnetic connection, and a clamping connection. It is understandable that the connection mode between the lens holder 201 and the lens barrel can only adopt one of a threaded connection, a magnetic connection, and a clamping connection, which is convenient for disassembly and replacement, or can be connected by multiple modes at the same time, so as to improve the stability and reliability of the connection while ensuring easy disassembly.

[0030] Reference Figure 3 As shown, a schematic diagram of a lens of another embodiment of the utility model, wherein the camera module includes a lens protection lens 30 and a lens assembly 31, wherein the lens protection lens 30 and the lens assembly 31 together constitute a lens 300, and along the incident direction of light, the first lens of the lens is a protection lens, and the protection lens is configured to be combined with the lens assembly in a detachable manner and participate in the optical imaging process; the protection lens is designed to be close to a plane mirror in curvature trend, and its curvature is 50mm-65mm, with an error of ±5mm. In some embodiments, the distance between the edge of the protection lens and the optical axis of the lens assembly is 17.73mm, with an error of ±3mm.

[0031] It should be noted that, in some embodiments, the camera module includes a lens holder 201 mounted on the lens barrel and a plurality of protective lenses 202 with different transmittances, and the protective lenses 202 are detachably connected to the lens holder 201 or the lens holder is detachably connected to the lens barrel. By providing a plurality of protective lenses 202 with different transmittances, and removing or installing one or more of the protective lenses 202, the protective lenses 202 as a whole can have different light transmittances for the lens assembly 102, that is, different light shielding capabilities, so as to achieve some special optical ND filter photography effects according to actual needs, such as using a larger aperture in a strong light environment.

[0032] In some embodiments, the protective lens is fixed to the lens mount by dispensing glue, and the lens mount is detachably connected to the lens.

[0033] In the disclosed embodiment, by providing a plurality of protective lenses with different transmittances, it is convenient to adjust the exposure, aperture and other parameters conveniently by replacing protective lenses with different light transmittances in different shooting environments or shooting requirements, thereby achieving an optical ND filter effect and improving the user experience.

[0034] It should be noted that the embodiments of the present invention Figure 2 , Figure 3These are merely exemplary drawings, and the lens barrel is not necessarily limited to the structure in the drawings, nor is the lens assembly limited to the structure in the drawings.

[0035] Reference Figure 4 As shown, as another embodiment of the present invention, a wide-angle motion camera 400 includes a housing 40, a circuit board disposed in the housing, and the camera module 100 described in any of the above embodiments. In some implementations, an indicator light is also disposed on the housing of the wide-angle motion camera to indicate whether the motion camera is turned on (including the working state) or the power information of the motion camera (including the indication of the charging state, etc.).

[0036] It is understandable that the above content is a further detailed description of the invention of the utility model in combination with specific / preferred implementation methods, and it cannot be determined that the specific implementation of the invention of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the invention of the utility model belongs, without departing from the concept of the invention of the utility model, they can also make several substitutions or modifications to these described implementation methods, and these substitutions or modifications should be deemed to belong to the scope of protection of this patent. In the description of this specification, the description of reference terms such as "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model.

[0037] In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradicting each other. Although the embodiments and advantages of the utility model have been described in detail, it should be understood that various changes, substitutions and modifications may be made herein without departing from the scope defined by the appended claims.

[0038] In addition, the scope of the invention is not intended to be limited to the specific embodiments of the processes, machines, manufactures, material compositions, means, methods, and steps described in the specification. It will be readily understood by those skilled in the art that the above disclosures, processes, machines, manufactures, material compositions, means, methods, or steps currently existing or to be developed later that perform substantially the same functions as the corresponding embodiments described herein or obtain substantially the same results as the embodiments described herein may be utilized. Therefore, the appended claims are intended to include these processes, machines, manufactures, material compositions, means, methods, or steps within their scope.

Claims

1. A camera module, characterized in that: include: A lens and a detachably mounted lens protection lens; wherein the lens comprises a lens barrel and a lens assembly mounted in the lens barrel; the lens protection lens comprises a lens seat and a protection lens fixedly or detachably mounted on the lens seat; the protection lens is a curved lens, which protrudes in a direction away from the lens; the protection lens is configured to participate in the imaging process of the lens, and the incident light is refracted by the protection lens and then incident on the lens.

2. The camera module according to claim 1, characterized in that: The protective lens is arranged so as not to block the viewing angle of the lens, and the distance between the edge of the protective lens and the optical axis of the lens assembly is 15.52 mm-19.52 mm, with an error of ±0.05 mm.

3. The camera module according to claim 1, characterized in that: The protective lens is configured as a curved lens with a curvature close to that of a plane mirror, and the curvature of the curved lens is 50 mm to 60 mm with an error of ±5 mm.

4. The camera module according to claim 1, characterized in that: The protective lens is configured as a tempered glass lens or a resin lens with strong light transmittance.

5. The camera module according to claim 1, characterized in that: The lens is configured such that the field of view angle is less than or equal to the field of view angle of the camera module after the lens protection mirror is installed.

6. The camera module according to claim 5, characterized in that: The lens includes a wide-angle lens, and the focal length of the wide-angle lens is shorter than the diagonal length of the film or sensor of the camera module.

7. The camera module according to claim 6, characterized in that: The viewing angle of the wide-angle lens is greater than 53° and less than or equal to 180°.

8. The camera module according to any one of claims 1 to 7, characterized in that: The lens seat is detachably mounted on the lens barrel.

9. A wide-angle sports camera, characterized in that: It comprises a shell, a circuit board arranged in the shell, and the camera module according to any one of claims 1 to 8.

10. The wide-angle motion camera according to claim 9, characterized in that: The housing of the wide-angle motion camera is also provided with an indicator light for indicating the working state of the motion camera or the power information of the motion camera.

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