Optical system for increasing thickness of thick-wall part to realize uniform lightening
By setting light transmission and reflecting parts on the working surface of the thick-walled light guide body, using multiple reflections and transmissions, the uniform lighting effect of the thick-walled parts is achieved, and the lighting effect after the width of the thick-walled parts is increased in the prior art is solved. The problem of the area ensures uniform light output of the light source.
Patent Information
- Application Number
- CN202420375761.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-02-28
AI Technical Summary
After the existing thick-walled parts have increased their width, the lighting effect will appear with obvious dark areas, which is difficult to meet customers' requirements for the uniformity of the car lights.
An optical system is designed, including a condenser and a thick-walled light guide body. By providing a light transmitting part and a reflecting part on the first working surface of the thick-walled light guide body, the light emitted from the condenser is divided into two parts, and After multiple reflections and transmissions, ensure that the light rays are emitted evenly, increase the light emitting surface, and achieve uniform light output of the light source in the vertical direction through the thick-walled light guide body of different structures.
Through multiple reflections and transmissions, the light output uniformity of the light source is ensured, and the problem of lighting the dark area after the width of the thick-walled parts is increased is solved, and the uniform lighting effect of the thick-walled parts is achieved.
Smart Images
Figure CN222230301U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile lamps, in particular to an optical system which increases the thickness of thick-walled parts to achieve uniform lighting. Background Art
[0002] With the further development of the automobile industry, especially the emergence of new energy vehicles, the luminous mode of thick-walled parts has been increasingly favored and recognized by consumers. It has the advantages of transparency, texture, sense of technology, varied shapes, and high optical efficiency. However, with the in-depth study of non-imaging optics, designers and customers have more stringent requirements on the uniformity of non-imaging optics.
[0003] Currently, the more common thick-walled parts on the market are all slender in shape. Due to the limited width of thick-walled parts for lighting with LED light sources, thick-walled parts that are too thick will always have obvious dark areas when lit, making it difficult to meet customers' requirements for uniformity of car lights. Utility Model Content
[0004] In order to solve the technical problem in the prior art that thick-walled parts have obvious dark areas when lit after the width of the thick-walled parts is increased, the present application proposes an optical system that increases the thickness of the thick-walled parts to achieve uniform lighting, thereby solving the above technical problem.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] The utility model provides an optical system for increasing the thickness of thick-walled parts to achieve uniform lighting, comprising a condenser and a thick-walled light guide body, a light source is arranged at the focus of the condenser, the condenser is arranged at the top of one end of the thick-walled light guide body, and the front projection profile of the thick-walled light guide body comprises: a first reflection surface, the first reflection surface is formed at one end of the thick-walled light guide body, and is obliquely arranged just below the light-emitting surface of the condenser, and the light emitted from the condenser is reflected for the first time on the first reflection surface; a first action surface, the first action surface is the same as the starting height of the first reflection surface, and is shorter than the first reflection surface, a plurality of light-transmitting parts and reflecting parts arranged in an alternating manner are formed on the first action surface, and a plurality of light-transmitting parts and reflecting parts arranged in an alternating manner are formed on the first action surface; After a part of the light is reflected on the reflecting surface for the first time, it is irradiated to the light-transmitting portion and then penetrates the light-transmitting portion and is emitted. At the same time, another part of the light is irradiated to the reflecting portion and then reflects for a second time. After the second reflection, the part of the light is re-irradiated to the first reflecting surface and is reflected for a third time; a first light-transmitting surface, the first light-transmitting surface is vertically configured, the part of the light emitted from the light-transmitting portion is irradiated to the first light-transmitting surface and then penetrates the first light-transmitting surface and is emitted; a second light-transmitting surface, the second light-transmitting surface is formed at the other end of the thick-walled light guide body, the light emitted from the first light-transmitting surface and the light after the third reflection on the first reflecting surface is irradiated to the second light-transmitting surface and then penetrates the second light-transmitting surface and is emitted.
[0007] Furthermore, the first reflecting surface is a curved reflecting surface at least in a portion where the third reflection occurs.
[0008] Furthermore, the first light-transmitting surface is a patterned surface.
[0009] Furthermore, the second light-transmitting surface is a patterned surface.
[0010] Furthermore, the patterned surface is a patterned surface formed by corn kernels, vertical stripes, horizontal stripes, leather grains or small dots.
[0011] Furthermore, the concentrator and the thick-walled light guide body may be an integrated structure, or two independent structures.
[0012] Based on the above technical solution, the technical effects that can be achieved by the utility model are:
[0013] The utility model provides an optical system that realizes uniform lighting by increasing the thickness of thick-walled parts. By arranging a translucent part and a reflective part on the first active surface of the thick-walled light guide body, the light emitted from the concentrator is divided into two parts. One part passes through the first reflecting surface (one diffusion), the translucent part of the first active surface, the first translucent surface (two diffusions), and the second translucent surface (three diffusions) in sequence before being emitted. The other part passes through the first reflecting surface (one diffusion), the reflective part of the first active surface, the first reflecting surface (one diffusion), and the second translucent surface (three diffusions) in sequence before being emitted, thereby increasing the light-emitting surface. At the same time, both parts of the light undergo the same diffusion, thereby ensuring the uniformity of light emission. Specifically, the light emitted by the light source is collimated by the concentrator, and the different structures of the thick-walled light guide body are used to reflect the light to the second translucent surface for uniform emission, thereby achieving the effect that the light source can still make the thick-walled light guide body emit light uniformly under the condition of large vertical spacing, thereby solving the technical problem in the prior art that the thick-walled parts have obvious dark areas when the lighting effect is increased after the width of the thick-walled parts is increased. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The front projection contour diagram of the utility model for increasing the thickness of thick-walled parts to achieve uniform lighting;
[0015] Figure 2 The utility model increases the thickness of the thick-walled parts to achieve a uniform light path;
[0016] Figure 3 This is a schematic diagram of the structure of the utility model in which the thickness of the thick-walled part is increased to achieve uniform lighting;
[0017] Figure 4 This is a schematic diagram of another viewing angle of the utility model showing that the thickness of the thick-walled component is increased to achieve uniform lighting.
[0018] In the utility model: 1-concentrator, 11-light source; 2-thick-walled light guide body, 21-first reflecting surface, 22-first action surface, 221-light-transmitting portion, 222-reflecting portion, 23-first light-transmitting surface, 24-second light-transmitting surface. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0020] like Figure 1-4As shown, the utility model provides an optical system for increasing the thickness of thick-walled parts to achieve uniform lighting, including a concentrator 1 and a thick-walled light guide body 2, a light source 11 is arranged at the focus of the concentrator 1, the concentrator 1 is arranged at the top of one end of the thick-walled light guide body 2, and the front projection contour of the thick-walled light guide body 2 includes a first reflection surface 21, a first action surface 22, a first light-transmitting surface 23 and a second light-transmitting surface 24, the first reflection surface 21 is formed at one end of the thick-walled light guide body 2, and is obliquely arranged directly below the light emitting surface of the concentrator 1, and the light emitted from the concentrator 1 is reflected for the first time on the first reflection surface 21, the first action surface 22 has the same starting height as the first reflection surface 21, and is shorter than the first reflection surface 21, and a plurality of staggered light-transmitting surfaces are formed on the first action surface 22 Part 221 and reflecting part 222, a part of the light after the first reflection on the first reflecting surface 21 is irradiated to the light-transmitting part 221, then penetrates the light-transmitting part 221 and is emitted, at the same time, another part of the light is irradiated to the reflecting part 222 and is reflected for the second time, and the part of the light after the second reflection is irradiated to the first reflecting surface 21 again and is reflected for the third time, the first light-transmitting surface 23 is vertically arranged, the part of the light emitted from the light-transmitting part 221 is emitted to the first light-transmitting surface 23, then penetrates the first light-transmitting surface 23 and is emitted, the second light-transmitting surface 24 is formed at the other end of the thick-walled light guide body 2, the light emitted from the first light-transmitting surface 23 and the light after the third reflection on the first reflecting surface 21 are emitted to the second light-transmitting surface 24, then penetrates the second light-transmitting surface 24 and is emitted.
[0021] The utility model provides an optical system that realizes uniform lighting by increasing the thickness of thick-walled parts, and by arranging a light-transmitting portion 221 and a reflecting portion 222 on the first action surface 22 of the thick-walled light guide body 2, the light emitted from the condenser 1 is divided into two parts, one part sequentially passes through the first reflecting surface 21 (primary diffusion), the light-transmitting portion 221 of the first action surface 22, the first light-transmitting surface 23 (secondary diffusion), and the second light-transmitting surface 24 (tertiary diffusion) before being emitted, and the other part sequentially passes through the first reflecting surface 21 (primary diffusion), the reflecting portion 222 of the first action surface 22, the first light-transmitting surface 23 (secondary diffusion), and the second light-transmitting surface 24 (tertiary diffusion). The light is emitted after passing through a reflective surface 21 (secondary diffusion) and a second light-transmitting surface 24 (tertiary diffusion), thereby increasing the light-emitting surface. At the same time, both parts of the light undergo the same diffusion, thereby ensuring the uniformity of the light output. Specifically, the light emitted by the light source 11 is collimated by the concentrator 1, and the different structures of the thick-walled light guide body 2 are used to reflect the light to the second light-transmitting surface 24 for uniform output, thereby achieving the effect that the light source 11 can still make the thick-walled light guide body 2 emit light uniformly under the condition of a large vertical spacing, thereby solving the technical problem in the prior art that the thick-walled parts increase the width of the thick-walled parts and the lighting effect will have obvious dark areas.
[0022] The light source 11 of the present invention should comply with the requirements of GB-4785 for light colors of lamps with different functions. For example, LED light sources 11 with light colors of white light, yellow light, red light, blue light and green light can be used.
[0023] The concentrator 1 of the present invention may be a commonly used circular concentrator 1 or a special-shaped concentrator 1 , such as an asymmetric concentrator 1 , a stretched concentrator 1 and a nested concentrator 1 .
[0024] In a specific embodiment of the present invention, at least the portion of the first reflection surface 21 where the third reflection occurs is a curved reflection surface.
[0025] In a specific embodiment of the present invention, the first light-transmitting surface 23 is a patterned surface.
[0026] In a specific embodiment of the present invention, the second light-transmitting surface 24 is a patterned surface.
[0027] In a specific embodiment of the present invention, the patterned surface is a patterned surface formed by corn kernels, vertical stripes, horizontal stripes, leather grains or small dots.
[0028] In a specific embodiment of the present invention, the concentrator 1 and the thick-walled light guide body 2 can be an integrated structure, or two independent structures.
[0029] It should be understood that the specific embodiments described above are only used to explain the present invention, and are not used to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.
Claims
1. An optical system for achieving uniform lighting by increasing the thickness of a thick-walled component, comprising a condenser (1) and a thick-walled light guide body (2), wherein a light source (11) is arranged at the focus of the condenser (1), and the condenser (1) is arranged at the top of one end of the thick-walled light guide body (2), characterized in that: The front projection profile of the thick-walled light guide body (2) comprises: a first reflecting surface (21), the first reflecting surface (21) being formed at one end of the thick-walled light guide body (2) and being obliquely disposed directly below the light-emitting surface of the condenser (1), and the light emitted from the condenser (1) undergoes a first reflection on the first reflecting surface (21); A first action surface (22), wherein the first action surface (22) has the same starting height as the first reflection surface (21) and is shorter than the first reflection surface (21), and a plurality of light-transmitting portions (221) and reflection portions (222) arranged in an alternating manner are formed on the first action surface (22), and after a portion of light is reflected for the first time on the first reflection surface (21), it is irradiated onto the light-transmitting portion (221), penetrates the light-transmitting portion (221) and is emitted, and at the same time, another portion of light is irradiated onto the reflection portion (222) and is reflected for the second time, and after the second reflection, the portion of light is irradiated onto the first reflection surface (21) again and is reflected for the third time; A first light-transmitting surface (23), wherein the first light-transmitting surface (23) is arranged vertically, and the portion of light emitted from the light-transmitting portion (221) strikes the first light-transmitting surface (23), penetrates the first light-transmitting surface (23) and is emitted; A second light-transmitting surface (24), wherein the second light-transmitting surface (24) is formed at the other end of the thick-walled light-guiding body (2), and light emitted from the first light-transmitting surface (23) and light reflected for the third time on the first reflecting surface (21) hit the second light-transmitting surface (24), penetrates the second light-transmitting surface (24) and is emitted.
2. The optical system for achieving uniform lighting by increasing the thickness of thick-walled parts according to claim 1, characterized in that: The first reflection surface (21) is a curved reflection surface at least in the portion where the third reflection occurs.
3. The optical system for achieving uniform lighting by increasing the thickness of thick-walled parts according to claim 1, characterized in that: The first light-transmitting surface (23) is a patterned surface.
4. The optical system for achieving uniform lighting by increasing the thickness of thick-walled parts according to claim 1, characterized in that: The second light-transmitting surface (24) is a patterned surface.
5. The optical system for achieving uniform lighting by increasing the thickness of thick-walled parts according to claim 3 or 4, characterized in that: The patterned surface is a patterned surface formed by corn kernels, vertical stripes, horizontal stripes, leather grains or small dots.
6. The optical system for achieving uniform lighting by increasing the thickness of thick-walled parts according to claim 1, characterized in that: The concentrator (1) and the thick-walled light guide body (2) may be an integrated structure, or two independent structures.