A filter assembly for a mobile phone camera
Patent Information
- Application Number
- CN202620096692.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-23
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2036-01-23
AI Technical Summary
[0004]本实用新型提供了一种用于手机摄像头的滤镜组件，以解决背景技术中提到的现有手机滤镜稳定性不足且无法精准调节光学参数的问题
[0015]上述一种用于手机摄像头的滤镜组件，该滤镜组件包括镜框底座、镜框上框、滤镜及限位机构。镜框底座通过粘胶层固定于手机摄像头模组外围，镜框上框与镜框底座通过卡扣结构实现可拆卸的转动连接；限位机构由设于镜框底座的限位凸起和设于镜框上框的弧形限位槽配合构成，用于精确限制镜框上框的旋转范围；镜框上框与底座分别设有安装部，通过选用不同的镜框上框或镜片组合，可分别实现CPL滤镜、ND滤镜及VND滤镜功能，满足了用户多样化的拍摄需求，且VND滤镜由第一线偏振镜和第二线偏振镜组成，通过旋转镜框上框改变第一线偏振镜和第二线偏振镜的相对角度以实现减光度连续可调。本实用新型结构紧凑，实现了复杂的光学调节功能，且易于生产和组装，可靠性高。
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Figure CN224890714U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of mobile phone photography accessories, specifically a filter component for mobile phone cameras. Background Technology
[0002] With the rapid development of mobile phone photography technology, users are increasingly demanding more professional mobile phone photography capabilities. They expect to be able to use external filters (such as polarizing filters (CPL), neutral density filters (ND), variable neutral density filters (VND), etc.) on their phones to eliminate reflections, control exposure, and shoot slow shutter effects, just like with SLR cameras.
[0003] Currently, most external filters for mobile phones on the market use magnetic or clamp-on fixing, which results in insufficient stability. Furthermore, when using external filters, users can only rely on touch to perform blurry, stepless adjustments, making it impossible to achieve fast, accurate, and repeatable optical parameter settings, thus failing to meet users' shooting needs. Utility Model Content
[0004] This invention provides a filter assembly for mobile phone cameras to solve the problems mentioned in the background art, such as insufficient stability of existing mobile phone filters and inability to accurately adjust optical parameters.
[0005] To address the aforementioned technical problems, this utility model provides a filter assembly for a mobile phone camera, comprising: The frame base has an adhesive layer on its lower surface and through holes adapted to fit the mobile phone camera module. The upper frame of the eyeglasses is rotatably connected to the base of the eyeglasses. The upper frame has a first mounting portion, and the base of the eyeglasses has a second mounting portion. A limiting mechanism is provided, comprising a limiting protrusion disposed on the base of the eyeglass frame and an arc-shaped limiting groove disposed on the upper frame of the eyeglass frame. The limiting protrusion is embedded in the arc-shaped limiting groove and can slide within the arc-shaped limiting groove to limit the rotation range of the upper frame of the eyeglass frame. The filter is one of a CPL filter, an ND filter, or a VND filter.
[0006] In one embodiment, the filter is a VND filter, which includes a first linear polarizing mirror fixed to the first mounting portion and a second linear polarizing mirror fixed to the second mounting portion. By rotating the upper frame of the filter frame, the second linear polarizing mirror and the first linear polarizing mirror are at different relative angles to obtain different light reduction values.
[0007] In one embodiment, the first mounting portion and the second mounting portion are annular slots.
[0008] In one embodiment, the frame base is also provided with multiple position indicators for indicating the rotation angle of the upper frame of the frame.
[0009] In one embodiment, the rotation range of the arc-shaped limiting groove includes multiple gears, each gear corresponds to a gear identifier, and each gear identifier corresponds to a specific light reduction value.
[0010] In one embodiment, the filter is a CPL filter, and the CPL filter is fixed to the first mounting portion.
[0011] In one embodiment, the filter is an ND filter, which is fixed to the first mounting portion.
[0012] In one embodiment, a silicone ring is also included, which is embedded in the through hole.
[0013] In one embodiment, the adhesive layer is a 3M adhesive that can be repeatedly peeled and reapplied.
[0014] In one embodiment, the frame base and the upper frame of the frame are detachably rotatably connected by a snap-fit structure.
[0015] The aforementioned filter assembly for a mobile phone camera includes a lens frame base, a lens frame upper frame, a filter, and a limiting mechanism. The lens frame base is fixed to the periphery of the mobile phone camera module via an adhesive layer. The lens frame upper frame and lens frame base are detachably rotatably connected via a snap-fit structure. The limiting mechanism consists of a limiting protrusion on the lens frame base and an arc-shaped limiting groove on the lens frame upper frame, used to precisely limit the rotation range of the lens frame upper frame. The lens frame upper frame and base each have mounting parts. By selecting different lens frame upper frames or lens combinations, CPL filter, ND filter, and VND filter functions can be implemented respectively, meeting diverse user shooting needs. The VND filter consists of a first linear polarizer and a second linear polarizer. By rotating the lens frame upper frame, the relative angle between the first and second linear polarizers can be changed to achieve continuously adjustable light reduction. This invention has a compact structure, achieves complex optical adjustment functions, is easy to manufacture and assemble, and has high reliability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the disassembled structure of Example 1; Figure 2 This is a schematic diagram of the overall structure of Example 1; Figure 3 This is a cross-sectional structural diagram of Example 1; Figure 4 This is a schematic diagram of the frame base structure in Example 1; Figure 5This is a schematic diagram of the disassembled structure of Example 2; Figure 6 This is a cross-sectional structural diagram of Example 2; Figure 7 This is a cross-sectional structural diagram of Example 3.
[0017] Among them, 10 is the frame base, 110 is the through hole, 120 is the second mounting part, 130 is the limiting protrusion, 140 is the position mark, 20 is the upper frame of the frame, 210 is the first mounting part, 220 is the arc-shaped limiting groove, 30 is the adhesive layer, 40 is the silicone ring, 50 is the VND filter, 510 is the first linear polarizing filter, 520 is the second linear polarizing filter, 60 is the CPL filter, and 70 is the ND filter. Detailed Implementation
[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0019] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediary component present. Conversely, when a component is said to be "directly" connected to another component, there is no intermediary component.
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0021] like Figures 1 to 3As shown, a filter assembly for a mobile phone camera includes a frame base 10, a frame top 20, a filter, and a limiting mechanism. The lower surface of the frame base 10 is provided with an adhesive layer 30 to firmly adhere the entire assembly to the outer area of the mobile phone camera module. In this invention, the adhesive layer 30 is a reusable 3M adhesive, allowing users to easily adjust the adhesive position or reinstall it when changing phones. Additionally, the frame base 10 is provided with a through hole 110 adapted to the mobile phone camera module, ensuring unobstructed view of the camera during use. A silicone ring 40 is embedded in the through hole 110, which, after the filter assembly is installed, presses firmly against the phone casing, providing cushioning, dust protection, and enhanced stability.
[0022] Furthermore, the upper frame 20 and the base frame 10 are detachably rotatably connected by a snap-fit structure, making it more convenient to replace the upper frame 20 and clean and maintain the lenses. The upper frame 20 is provided with a first mounting part 210, and the base frame 10 is provided with a second mounting part 120. The first mounting part 210 and the second mounting part 120 are annular grooves.
[0023] Combination Figure 4 As shown, the limiting mechanism includes a limiting protrusion 130 and an arc-shaped limiting groove 220. The limiting protrusion 130 is disposed on the frame base 10, and the arc-shaped limiting groove 220 is disposed on the upper frame 20 of the frame. The limiting protrusion 130 is embedded in the arc-shaped limiting groove 220 and can slide within the arc-shaped limiting groove 220 to limit the rotation range of the upper frame 20 of the frame.
[0024] Furthermore, the filter is one of CPL filter 60, ND filter 70 or VND filter 50. In this utility model, the function switching is achieved by selecting the upper frame 20 with different filter functions.
[0025] Example 1 In this embodiment, the filter is a VND filter 50.
[0026] Specifically, the VND filter 50 includes a first linear polarizer 510 and a second linear polarizer 520. The first linear polarizer 510 is mounted on the first mounting portion 210 of the upper frame 20, and the second linear polarizer 520 is mounted on the second mounting portion 120 of the base 10. The upper frame 20 and the base 10 are connected by a snap-fit structure to ensure that the two linear polarizers are coaxial and parallel to each other. In addition, the base 10 is provided with multiple position marks 140 for indicating the rotation angle of the upper frame 20. The rotation range of the arc-shaped limiting groove 220 includes multiple positions, each position corresponding to a position mark 140, and each position mark 140 corresponding to a specific light reduction value.
[0027] More specifically, the arc length of the arc-shaped limiting groove 220 corresponds to a central angle of 90 degrees, and this range is divided into 5 positions, each marked with a number. When the limiting protrusion 130 slides to different positions, the relative angle between the first linear polarizer 510 and the second linear polarizer 520 is fixed, thereby obtaining a specific reduction value. This limiting mechanism not only restricts the rotation range, but its 'click' feel at the positions usually comes from the elastic deformation and recovery of the limiting protrusion 130 and the sidewall of the arc-shaped limiting groove 220, thus providing the user with clear tactile feedback.
[0028] It should be noted that the transmittance is maximized when the polarization directions of the first linear polarizer 510 and the second linear polarizer 520 are parallel; the transmittance is minimized when the polarization directions of the first linear polarizer 510 and the second linear polarizer 520 are perpendicular. When the user needs to adjust the light reduction, the upper frame 20 of the lens frame is rotated. At this time, the limiting protrusion 130 will slide within the arc-shaped limiting groove 220 of the lens frame base 10. By selecting different settings, the first linear polarizer and the second linear polarizer are placed at different relative angles to obtain the desired light reduction value.
[0029] This embodiment achieves stepped, precise, and intuitive adjustment of light reduction through the cooperation of the first linear polarizing filter 510 and the second linear polarizing filter 520. Secondly, physical settings and visual indicators provide users with an intuitive and fast operating experience, improving shooting efficiency. In addition, the limiting mechanism can prevent damage to the lens or internal structure due to excessive rotation, improving product reliability.
[0030] Example 2 In this embodiment, the filter is a CPL filter 60.
[0031] like Figure 5 and Figure 6 As shown, the CPL filter 60 is installed on the first mounting part 210 of the upper frame 20 of the lens frame. The lens frame base 10 is accurately attached to the periphery of the camera module of the mobile phone through the 3M adhesive on its lower surface. The upper frame 20 with the CPL filter 60 installed is aligned and fastened to the lens frame base 10 through a snap-fit structure. At this time, the second mounting part 120 on the lens frame base 10 is empty or has a transparent protective lens installed.
[0032] When the user needs to eliminate reflections, simply pinch the edge of the upper frame 20 with your fingers and rotate it around its central axis. Due to the optical characteristics of the CPL filter 60, its polarization effect changes with the angle of the lens. By observing the real-time image on the mobile phone screen, the user can rotate the upper frame 20 to make the CPL filter 60 rotate around its own optical axis until the reflection disappears and the optimal effect is achieved. In this embodiment, the limiting mechanism is set to allow the upper frame 20 to rotate 360 degrees without limit to accommodate the continuous adjustment characteristics of the CPL filter 60.
[0033] Example 3 In this embodiment, the filter is an ND filter 70.
[0034] Combination Figure 7 As shown, during use, the ND filter 70 is installed on the first mounting part 210 of the upper frame 20 of the lens frame. The lens frame base 10 is accurately attached to the periphery of the camera module of the mobile phone through the 3M adhesive on its lower surface. The upper frame 20 with the ND filter 70 installed is aligned and fastened to the lens frame base 10 through a snap-fit structure. At this time, the second mounting part 120 on the lens frame base 10 is empty or has a transparent protective lens installed.
[0035] Once installed, it can provide a fixed light reduction effect for the mobile phone camera. In this embodiment, since the optical effect of the ND filter 70 does not change with the angle, and the purpose is to provide a stable light reduction function, the upper frame 20 and the base 10 of the lens frame can be fixedly connected or limited to rotation within a very small angle.
[0036] In summary, by selecting different upper frame 20 or lens combinations, this utility model can respectively realize the functions of CPL filter 60, ND filter 70 and VND filter 50, meeting the diverse shooting needs of users. The VND filter 50 is composed of a first linear polarizer 510 and a second linear polarizer 520. By rotating the upper frame 20, the relative angle between the first linear polarizer 510 and the second linear polarizer 520 can be changed to achieve continuously adjustable light reduction.
[0037] The options described in the above method embodiments are also applicable to this embodiment, and will not be detailed here. The remaining contents of this utility model embodiment can be referred to the contents of the above method embodiments, and will not be repeated in this embodiment.
[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A filter assembly for a mobile phone camera, characterized in that, include: The frame base has an adhesive layer on its lower surface and through holes adapted to fit the mobile phone camera module. The upper frame of the eyeglasses is rotatably connected to the base of the eyeglasses. The upper frame has a first mounting portion, and the base of the eyeglasses has a second mounting portion. A limiting mechanism is provided, comprising a limiting protrusion disposed on the base of the eyeglass frame and an arc-shaped limiting groove disposed on the upper frame of the eyeglass frame. The limiting protrusion is embedded in the arc-shaped limiting groove and can slide within the arc-shaped limiting groove to limit the rotation range of the upper frame of the eyeglass frame. The filter is one of a CPL filter, an ND filter, or a VND filter.
2. A filter assembly for a mobile phone camera according to claim 1, characterized in that, The filter is a VND filter, which includes a first linear polarizing mirror fixed to the first mounting part and a second linear polarizing mirror fixed to the second mounting part. By rotating the upper frame of the filter frame, the second linear polarizing mirror and the first linear polarizing mirror are at different relative angles to obtain different light reduction values.
3. A filter assembly for a mobile phone camera according to claim 2, characterized in that, The first mounting part and the second mounting part are annular slots.
4. A filter assembly for a mobile phone camera according to claim 3, characterized in that, The base of the mirror frame is also equipped with multiple position indicators to indicate the rotation angle of the upper frame of the mirror frame.
5. A filter assembly for a mobile phone camera according to claim 4, characterized in that, The rotation range of the arc-shaped limiting groove includes multiple gears, each gear corresponds to a gear identifier, and each gear identifier corresponds to a specific light reduction value.
6. A filter assembly for a mobile phone camera according to claim 1, characterized in that, The filter is a CPL filter, and the CPL filter is fixed to the first mounting part.
7. A filter assembly for a mobile phone camera according to claim 1, characterized in that, The filter is an ND filter, and the ND filter is fixed to the first mounting part.
8. A filter assembly for a mobile phone camera according to claim 1, characterized in that, It also includes a silicone ring, which is embedded in the through hole.
9. A filter assembly for a mobile phone camera according to claim 1, characterized in that, The adhesive layer is a 3M adhesive that can be repeatedly peeled and reapplied.
10. A filter assembly for a mobile phone camera according to claim 1, characterized in that, The base of the eyeglass frame and the upper frame of the eyeglass frame are detachably and rotatably connected by a snap-fit structure.