Optical system with translucent appearance
By setting the corn kernel diffusion pattern in the light entering direction of the car light optical system, the problem of impervious appearance of the existing car lights is solved, and the transparent optical effect and texture improvement in static and lit states is achieved.
Patent Information
- Application Number
- CN202421223429.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing diamond-effect headlights cannot guarantee pure optical effects due to the existence of corn grain patterns in a static and lit state, and the appearance is not transparent and lack texture.
The diffusion pattern of corn kernels is arranged in the light entering direction of the entire optical system without being exposed to the light exit direction, so as to achieve the transparent appearance of the car light while ensuring the uniformity of the light path.
It realizes that the headlights can present a transparent optical effect regardless of whether they are static or lit, avoiding the problem of impure appearance and enhancing the texture of the static effect.
Smart Images
Figure CN222437745U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle lamps, in particular to an optical system with a clear appearance. Background Art
[0002] Light guides are light-guiding elements used in the field of optics. Their function is to make the light path shine in a certain direction as much as possible and have the effect of uniform light, thereby maximizing the utilization of light energy. The reflective surface set on the light guide can change the path of the light path, and the diffusion pattern set on the reflective surface also helps to make the light path uniform.
[0003] Light guides are widely used in car lights. For example, some existing car models usually use light guides to achieve a crystal or diamond effect appearance.
[0004] Specifically, in order to avoid the LED light source from being exposed, the car lights with diamond effect in the prior art usually use a light guide with a basically L-shaped structure and a light guide with a diamond effect on the light emitting surface to guide the light path and present a diamond appearance; wherein, one end of the L-shaped light guide is used to receive the light path emitted by the LED light source, and the light path direction is changed by the reflective surface set at the corner of the L-shaped structure and then emitted at the other end, and then the light path is received by the diamond light guide, and the light path is refracted by the light emitting surface with a diamond effect to form a crystal or diamond light effect.
[0005] In order to make full use of the light energy of the LED light source and ensure the uniform propagation of the light path, the existing diamond-effect headlights usually set corn-like patterns on the reflective surface of the light guide, which causes defects:
[0006] like Figure 1 As shown, the headlights of this structure have defects in both static and lit states, that is, because the corn kernel pattern is dense and regular, the headlights cannot guarantee a pure optical effect, its appearance lacks a crystal clear feel, and cannot form a textured static effect. Utility Model Content
[0007] Based on the above defects, the utility model proposes an optical system with a clear appearance. The optical system proposes a new solution: the diffusion pattern of corn kernels is arranged in the light incident direction of the entire optical system without being exposed in the light emitting direction. In this way, the clear appearance of the car lights can be achieved while ensuring the uniformity of the light path.
[0008] Specifically, the optical system includes a first light guide and a second light guide. A reflective surface is formed on the first light guide, and the reflective surface is used to reflect the light path entering the first light guide, so that the light path changes direction and then emits. The second light guide is placed at one end of the first light guide, and is used to receive the light path emitted by the first light guide, and refract the light path and then emit it. That is, the light-emitting surface of the second light guide is diamond-shaped, that is, it is composed of irregular facets, and the light path is refracted at the facets, thereby achieving a diamond effect.
[0009] Different from the traditional solution, in the optical system, a first diffusion pattern is formed at the incident end of the first light guide, and the first diffusion pattern is used to diffuse the light path incident on the first light guide, which has the effect of uniform light. The effect is consistent with the corn grain pattern set on the reflective surface in the traditional structure, but avoids the pattern from appearing in the light emitting direction of the entire optical system, so that a clear optical effect can be achieved whether in a static state or in a lit state (such as Figure 2 is the static effect of this optical system, Figure 3 is the lighting effect of this optical system).
[0010] Preferably, the first light guide comprises a collimator, which is formed at the incident end of the first light guide and is used to collimate the light path incident into the first light guide.
[0011] Preferably, the first diffusion pattern is formed on the outer surface of the collimator, which diffuses the light path while collimating, that is, completes the light homogenization before the light path changes direction.
[0012] Preferably, the first diffusion pattern is a corn kernel pattern.
[0013] Preferably, a second diffusion pattern is formed at the output end of the first light guide, and the second diffusion pattern is a polygonal diamond pattern. The polygonal diamond pattern has a further complementary effect on the diamond effect based on the diffusion pattern, and because of its irregularity, it will not produce an obvious granular appearance, and has a positive impact on the transparency performance.
[0014] Preferably, a third diffusion pattern is formed at the incident end of the second light guide, and the third diffusion pattern is also a polygonal diamond pattern, which also has a positive effect on the transparency performance.
[0015] Preferably, a diamond-shaped exit surface is formed on the exit end of the second light guide. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0017] Figure 1 It is the static appearance of the headlight with diamond effect in the background technology of the utility model;
[0018] Figure 2 This is the static appearance of the headlight of the optical system proposed by the utility model;
[0019] Figure 3 This is the appearance of the headlight of the optical system proposed by the utility model when it is lit;
[0020] Figure 4 It is a structural schematic diagram of an optical system in an embodiment of the utility model;
[0021] In the figure:
[0022] A first light guide 1, a reflective surface 21, a collimator 22, a first diffusion pattern 221, and a second diffusion pattern 23;
[0023] The second light guide 2 , the third diffusion pattern 21 , and the diamond-shaped emission surface 22 . DETAILED DESCRIPTION
[0024] 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Embodiment: This embodiment provides a best implementation scheme of an optical system with a clear appearance.
[0026] Specifically, Figure 4 The optical system includes a first light guide 1 and a second light guide 2. The first light guide 1 is a basically L-shaped structure, one end of the L-shaped structure is an incident end, and the other end is an exit end. A reflecting surface 21 is formed at a corner. The reflecting surface 21 is used to reflect the light path incident on the first light guide 1, so that the light path changes direction and then exits. The second light guide 2 is block-shaped and is placed on a side close to the exit end of the first light guide 1. It is used to receive the light path emitted by the first light guide 1 and refract the light path before exiting.
[0027] Different from the traditional solution: Figure 4 A first diffusion pattern 221 is formed at the incident end of the first light guide 1 .
[0028] Further, such as Figure 4 The first light guide 1 includes a collimator 22 , which is formed at the incident end of the first light guide 1 and is used to collimate the light path incident into the first light guide 1 .
[0029] Further, such as Figure 4 , a first diffusion pattern 221 is formed on the outer surface of the collimator 22 .
[0030] Further, such as Figure 4 , the first diffusion pattern 221 is a corn kernel pattern.
[0031] Further, such as Figure 4 A second diffusion pattern 23 is formed at the exit end of the first light guide 1 , and the second diffusion pattern 23 is a polygonal diamond pattern.
[0032] Further, such as Figure 4 A third diffusion pattern 21 is formed at the incident end of the second light guide 2 .
[0033] Further, such as Figure 4 The third diffusion pattern 21 is also a polygonal diamond pattern.
[0034] Further, such as Figure 4 A diamond-shaped emission surface 22 is formed on the emission end of the second light guide 2 .
[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An optical system with a clear appearance, comprising a first light guide and a second light guide, wherein a reflective surface is formed on the first light guide, and the reflective surface is used to reflect the light path entering the first light guide, so that the light path changes direction and then emits, and the second light guide is arranged at one end of the first light guide, so as to receive the light path emitted by the first light guide, and refract the light path and then emit it, characterized in that: A first diffusion pattern is formed at the incident end of the first light guide.
2. The optical system with a clear appearance according to claim 1, characterized in that: The first light guide includes a collimator, which is formed at the incident end of the first light guide and is used to collimate the light path incident into the first light guide.
3. The optical system with a clear appearance according to claim 2, characterized in that: The first diffusion pattern is formed on an outer surface of the collimator.
4. An optical system with a clear appearance according to any one of claims 1 to 3, characterized in that: The first diffusion pattern is a corn kernel pattern.
5. An optical system with a clear appearance according to any one of claims 1 to 3, characterized in that: A second diffusion pattern is formed at the exit end of the first light guide, and the second diffusion pattern is a polygonal diamond pattern.
6. An optical system with a clear appearance according to any one of claims 1 to 3, characterized in that: A third diffusion pattern is formed on the incident end of the second light guide.
7. The optical system with a clear appearance according to claim 6, characterized in that: The third diffusion pattern is also a polygonal diamond pattern.
8. An optical system with a clear appearance according to any one of claims 1 to 3, characterized in that: A diamond-shaped exit surface is formed on the exit end of the second light guide.