A flash lens for mobile phone shooting lens zoom light supplement
Patent Information
- Application Number
- CN202522112572.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-30
AI Technical Summary
[0004]本实用新型的主要目的为提供一种用于手机拍摄镜头变焦补光的闪光透镜，旨在解决现有技术智能手机在拍摄过程中，单个单一性能闪光透镜，无法满足手机主摄镜头和长焦镜头不同角度变焦补光的拍摄性能需求，多个性能不同的单体闪光透镜装配到手机后盖影响手机美感，且装配多个闪光透镜，闪光透镜零件成本增高，多个闪光透镜还需分别组装，组装效率低下的技术问题
[0014]在本实用新型中：
Smart Images
Figure CN224837090U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of optical lens technology, specifically, it relates to a flash lens for zooming and supplementing light in mobile phone camera lenses. Background Technology
[0002] With the rapid development of smartphones, smartphones have integrated a variety of functions, one of which is the camera function. When shooting in low-light environments, the phone needs a flash to provide supplemental light, and the flash needs to be used with a flash lens to improve optical efficiency. Therefore, to create a smartphone with good camera performance, it is necessary to have a high-performance flash lens to match it.
[0003] Early smartphones had only one main camera lens paired with a single flash, using a customized single-performance flash lens to meet everyday photography needs. However, as smartphones have evolved over the years, users have increasingly higher demands for image quality. To address different shooting scenarios, wide-angle and telephoto lenses have been added, but the flash lens still only has a single performance characteristic. Furthermore, some higher-end phones incorporate two single flash lenses with different performance characteristics (a main camera flash lens and a telephoto flash lens) to meet the needs of shooting from two different angles, respectively for zoom lighting of the main camera and telephoto lens. However, this requires separate assembly on the back cover, leading to low assembly efficiency and high component costs. Additionally, creating two openings on the back cover affects the overall aesthetics of the phone. Therefore, it is necessary to design a flash lens that simultaneously meets the zoom lighting requirements of both the main camera and telephoto lens for smartphone photography, thus overcoming the shortcomings of existing technologies. Summary of the Invention
[0004] The main purpose of this utility model is to provide a flash lens for zoom lighting in mobile phone camera lenses. It aims to solve the technical problems of existing smartphones in that a single flash lens with a single performance cannot meet the shooting performance requirements of the main camera lens and telephoto lens at different zoom angles. Furthermore, multiple single flash lenses with different performance are not aesthetically pleasing when mounted on the back cover of the phone. In addition, mounting multiple flash lenses increases the cost of flash lens components, and multiple flash lenses need to be assembled separately, resulting in low assembly efficiency.
[0005] The present invention adopts the following technical solution:
[0006] A flash lens for zooming and supplementing light in mobile phone camera lenses includes an integrally injection-molded flash lens. The flash lens is disc-shaped with a skirt positioning frame at the edge and a Fresnel texture light-incident surface at the center. The other side of the flash lens has a light-out surface corresponding to the Fresnel texture light-incident surface. The Fresnel texture light-incident surface has a focusing Fresnel texture area and a diffuse Fresnel texture area of the same size symmetrically arranged along the center line. The diffuse Fresnel texture area has a first diffuse Fresnel texture area and a second diffuse Fresnel texture area of the same size symmetrically arranged along the center line.
[0007] The focusing Fresnel texture area, the first diffuse Fresnel texture area, and the second diffuse Fresnel texture area are all composed of several concentric circular teeth of increasing size. The distance between two adjacent concentric circular teeth in the focusing Fresnel texture area is 0.18 mm, the tooth tip angle of each concentric circular tooth is 42°-50°, and the depth of each concentric circular tooth is 0.18 mm. The distance between two adjacent concentric circular teeth in the first diffuse Fresnel texture area and the second diffuse Fresnel texture area is 0.18 mm, the tooth tip angle of each concentric circular tooth is 32°-50°, and the depth of each concentric circular tooth is 0.16 mm.
[0008] Furthermore, the Fresnel textures formed by several concentric circular teeth on the first and second astigmatic Fresnel texture areas are mirror images of each other along the center line of the astigmatic Fresnel texture areas.
[0009] Furthermore, the innermost circle of the concentric ring teeth on the focusing Fresnel texture area, the first diffuse Fresnel texture area, and the second diffuse Fresnel texture area is a conical tooth. The conical tooth on the focusing Fresnel texture area has a taper of 50°, and the conical tooth on the first diffuse Fresnel texture area and the second diffuse Fresnel texture area has a taper of 32°.
[0010] Furthermore, flash lamps are respectively provided on the light-incident side of the conical teeth on the focusing Fresnel texture area, the first diffuse Fresnel texture area, and the second diffuse Fresnel texture area.
[0011] Furthermore, the thickness of the flash lens frame is 0.7mm, and the skirt positioning frame includes an arch-shaped skirt, a connecting skirt, and a positioning block. The two ends of the arch-shaped skirt are connected to the connecting skirt, and the positioning block is connected to the side of the connecting skirt away from the arch-shaped skirt.
[0012] Furthermore, the injection molding material of the flash lens is polymethyl methacrylate (PMMA), polycarbonate (PC), cyclic olefin copolymer (COC / COP) or polystyrene (PS).
[0013] Beneficial effects:
[0014] In this utility model:
[0015] By simultaneously setting a focused Fresnel texture area and a diffused Fresnel texture area on a Fresnel texture surface, and activating the flash on the light-incident side of the focused Fresnel texture area alone, the light enters the focused Fresnel texture area of the flash lens, undergoes optical refraction and focusing, and the beam angle emitted through the light-out surface of the flash lens becomes smaller, resulting in higher center illumination and a longer illumination distance. This is suitable for supplemental lighting in mobile phone telephoto lens photography; it can capture objects 2-3 meters away. Activating both flashes on the light-incident sides of the first and second diffused Fresnel texture areas, the light enters the diffused Fresnel texture area of the flash lens, undergoes optical refraction and astigmatism, and then... The beam angle emitted from the light-emitting surface of the flash lens is increased, the uniformity at the four corners is greatly improved, and the illumination range is wider, which is applied to the main camera lens for supplemental lighting; the overall illumination is softer, and the range of objects photographed with soft light is 0.5-1 meters; a single flash lens integrates both a focusing Fresnel texture area and a diffused Fresnel texture area, avoiding the need to install multiple flash lenses with different performance on the phone, which not only saves costs but also improves component assembly efficiency. At the same time, it also meets the shooting performance requirements of the main camera lens and telephoto lens for zoom supplemental lighting at different angles. More light is refracted, the focusing effect is better, and the brightness and uniformity are better. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of a flash lens for zooming and supplementing light in mobile phone camera lenses according to the present invention.
[0017] Figure 2 This is a schematic diagram of the light incident surface angle of a flash lens used for zoom supplementary lighting in mobile phone camera lenses according to this utility model.
[0018] Figure 3 This is a schematic diagram of the light-emitting surface angle of a flash lens for zooming and supplementing light in mobile phone camera lenses according to this utility model.
[0019] Figure 4 This is a planar schematic diagram of the light-incident surface of a flash lens for zoom supplementary lighting in mobile phone camera lenses according to this utility model.
[0020] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure along line A in the middle;
[0021] Figure 6 yes Figure 4 Schematic diagram of the cross-sectional structure along the B-axis;
[0022] Figure 7 This is a schematic diagram illustrating the light refraction effect of a flash lens used for zoom lighting in mobile phone cameras, according to this utility model.
[0023] The components are: 1. Flash lens; 2. Skirt positioning frame; 3. Fresnel texture light-incident surface; 4. Light-out surface; 5. Focusing Fresnel texture area; 6. Diffuse Fresnel texture area; 7. First diffuse Fresnel texture area; 8. Second diffuse Fresnel texture area; 9. Arch-shaped skirt; 10. Connecting skirt; 11. Positioning block.
[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0025] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] Reference Figures 1 to 7 This utility model proposes a flash lens for zoom lighting in mobile phone camera lenses, comprising an integrally injection-molded flash lens 1. The flash lens 1 is disc-shaped with a skirt positioning frame 2 at the edge and a Fresnel texture light-incident surface 3 at the center. The other side of the flash lens 1 has a light-out surface 4 opposite to the Fresnel texture light-incident surface 3. The Fresnel texture light-incident surface 3 has a focusing Fresnel texture area 5 and a diffuse Fresnel texture area 6 of the same size symmetrically arranged along the center line. The diffuse Fresnel texture area 6 has a first diffuse Fresnel texture area 7 and a second diffuse Fresnel texture area 8 of the same size symmetrically arranged along the center line. The focusing Fresnel texture area 5 and the diffuse Fresnel texture area 6 are integrated on a single flash lens 1, avoiding the installation of multiple flash lenses 1 with different performance on the mobile phone. This not only saves costs but also improves component assembly efficiency. At the same time, it meets the shooting performance requirements of zoom lighting at different angles for the main camera lens and the telephoto lens of the mobile phone. More light is refracted, the focusing effect is better, and the brightness and uniformity are better.
[0030] The focusing Fresnel texture area 5, the first diffused Fresnel texture area 7, and the second diffused Fresnel texture area 8 are all composed of several concentric circular teeth of increasing size. The distance between two adjacent concentric circular teeth on the focusing Fresnel texture area 5 is 0.18mm. The tooth tip angle of each concentric circular tooth is 42°-50°, and the depth of each concentric circular tooth is 0.18mm. When light enters the focusing Fresnel texture area 5 of the flash lens 1, it undergoes optical refraction and focusing. The beam angle emitted through the light-emitting surface 4 of the flash lens 1 becomes smaller, resulting in higher center illuminance and a longer illumination distance. This is used for supplemental lighting in mobile phone telephoto lens photography, allowing for the capture of objects 2-3 meters away. At the maximum viewing angle of the LED flash (30 degrees), the center brightness can reach 223LX. The spacing between two adjacent concentric ring teeth on the astigmatic Fresnel texture area 7 and the second astigmatic Fresnel texture area 8 is 0.18mm. The tooth tip angle of each concentric ring tooth is 32°-50° and the depth of each concentric ring tooth is 0.16mm. When light enters the first astigmatic Fresnel texture area 7 and the second astigmatic Fresnel texture area 8 of the flash lens 1, it undergoes optical refraction and astigmatism. The beam emitted from the light-emitting surface 4 of the flash lens 1 has a larger angle, improved uniformity at the four corners, and a wider illumination range. When applied to the main camera lens for supplemental lighting, the overall illumination is softer. The range of objects photographed with soft light is 0.5-1 meter. At the maximum viewing angle of the LED flash, the viewing angle is 79 degrees, the center brightness can reach 151LX, and the uniformity of the illumination around the periphery reaches 35%.
[0031] refer to Figures 1 to 7 In one embodiment, the Fresnel texture formed by several concentric circular teeth on the first diffuse Fresnel texture area 7 and the second diffuse Fresnel texture area 8 is mirror-flipped along the center line of the diffuse Fresnel texture area 6. By using two first diffuse Fresnel texture areas 7 and second diffuse Fresnel texture areas 8 with the same area and function, the light emitted by the flash can be maximally refracted, the illumination range is offset and superimposed, the illumination range is wider, the light intensity is higher, and the uniformity of the illumination around the periphery is better, which is beneficial for the main camera lens of the mobile phone to shoot supplementary light.
[0032] refer to Figures 1 to 7 In one embodiment, the innermost circle of the concentric ring teeth on the focusing Fresnel texture area 5, the first diffuse Fresnel texture area 7, and the second diffuse Fresnel texture area 8 is a conical tooth. The conical tooth on the focusing Fresnel texture area 5 has a taper of 50°, and the conical tooth on the first diffuse Fresnel texture area 7 and the second diffuse Fresnel texture area 8 has a taper of 32°.
[0033] refer to Figures 1 to 7 In one embodiment, flash lamps are respectively provided on the light-incident side of the conical teeth on the focusing Fresnel texture area 5, the first diffuse Fresnel texture area 7, and the second diffuse Fresnel texture area 8.
[0034] refer to Figures 1 to 7In one embodiment, the frame thickness of the flash lens 1 is 0.7mm. The skirt positioning frame 2 includes an arch-shaped skirt 9, a connecting skirt 10, and a positioning block 11. The two ends of the arch-shaped skirt 9 are connected to the connecting skirt 10. The side of the connecting skirt 10 away from the arch-shaped skirt 9 is connected to the positioning block 11. The skirt positioning frame 2 is thinner and the edge structure is designed to match the internal structure of the mobile phone, which facilitates the assembly of the flash lens 1 into the mobile phone camera module.
[0035] refer to Figures 1 to 7 In one embodiment, the injection molding material of the flash lens 1 is polymethyl methacrylate (PMMA), polycarbonate (PC), cyclic olefin copolymer (COC / COP) or polystyrene (PS).
[0036] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.
Claims
1. A flash lens for zoom illumination in mobile phone camera lenses, characterized in that, The flash lens (1) is integrally injection molded. The flash lens (1) is disc-shaped with a skirt positioning frame (2) at the edge and a Fresnel texture light-incident surface (3) at the center. The other side of the flash lens (1) is provided with a light-out surface (4) corresponding to the Fresnel texture light-incident surface (3). The Fresnel texture light-incident surface (3) is symmetrically provided with a focusing Fresnel texture area (5) and a diffuse Fresnel texture area (6) of the same area along the center line. The diffuse Fresnel texture area (6) is symmetrically provided with a first diffuse Fresnel texture area (7) and a second diffuse Fresnel texture area (8) of the same area along the center line. The focusing Fresnel texture area (5), the first diffuse Fresnel texture area (7), and the second diffuse Fresnel texture area (8) are all composed of several concentric circular teeth of increasing size. The distance between two adjacent concentric circular teeth on the focusing Fresnel texture area (5) is 0.18 mm, the tooth tip angle of each concentric circular tooth is 42°-50°, and the depth of each concentric circular tooth is 0.18 mm. The distance between two adjacent concentric circular teeth on the first diffuse Fresnel texture area (7) and the second diffuse Fresnel texture area (8) is 0.18 mm, the tooth tip angle of each concentric circular tooth is 32°-50°, and the depth of each concentric circular tooth is 0.16 mm.
2. The flash lens for zoom illumination in mobile phone camera lenses according to claim 1, characterized in that, The Fresnel texture formed by several concentric circular teeth on the first astigmatic Fresnel texture area (7) and the second astigmatic Fresnel texture area (8) is mirrored along the center line of the astigmatic Fresnel texture area (6).
3. A flash lens for zoom illumination in mobile phone camera lenses according to claim 1, characterized in that, The innermost circle of the concentric ring teeth on the focusing Fresnel texture area (5), the first diffuse Fresnel texture area (7), and the second diffuse Fresnel texture area (8) is a conical tooth. The conical tooth on the focusing Fresnel texture area (5) has a taper of 50°, and the conical tooth on the first diffuse Fresnel texture area (7) and the second diffuse Fresnel texture area (8) has a taper of 32°.
4. A flash lens for zoom illumination in mobile phone camera lenses according to claim 3, characterized in that, Flash lamps are respectively provided on the light-incident side of the conical teeth on the focusing Fresnel texture area (5), the first diffuse Fresnel texture area (7), and the second diffuse Fresnel texture area (8).
5. A flash lens for zoom illumination in mobile phone camera lenses according to claim 1, characterized in that, The frame thickness of the flash lens (1) is 0.7mm. The skirt positioning frame (2) includes an arch-shaped skirt (9), a connecting skirt (10) and a positioning block (11). The two ends of the arch-shaped skirt (9) are connected to the connecting skirt (10). The side of the connecting skirt (10) away from the arch-shaped skirt (9) is connected to the positioning block (11).
6. A flash lens for zoom illumination in mobile phone camera lenses according to claim 1, characterized in that, The injection molding material of the flash lens (1) is polymethyl methacrylate (PMMA), polycarbonate (PC), cyclic olefin copolymer (COC / COP) or polystyrene (PS).