Dodging structure
The multiple total reflection design of the uniform light structure solves the problems of high cost and increased heat in existing headlight solutions, achieves uniform light output and reduces heat risks, and adapts to installation in different headlight spaces.
Patent Information
- Application Number
- CN202423034674.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In order to achieve uniform lighting effects, existing car lighting solutions require a large number of LED light sources, which leads to increased costs and heat, and poses thermal risks.
A uniform light structure is adopted to evenly distribute light through multiple total reflections, including the first reflection surface, the second reflection surface, the third reflection surface and the fourth reflection surface. Light is totally reflected between these reflection surfaces to achieve uniform light output and reduce the number of light sources.
It achieves uniform light output while reducing costs and heat, and adapts to the installation requirements of different headlight spaces.
Smart Images
Figure CN223375607U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle lamps, and particularly relates to a light uniforming structure. Background Art
[0002] With the rapid development of automotive lighting technology and consumers' increasing demand for lighting effects, production costs and efficiency have become urgent issues for automotive lighting suppliers. Existing solutions require light from LEDs to pass through a series of devices before being emitted from the light-emitting surface to achieve a more uniform lighting effect.
[0003] In order to achieve a uniform lighting effect, the current solution requires the use of a large number of LED lamps. A large number of LED lamps emit a large amount of light to ensure that the light outlet is filled with light, thereby achieving a uniform effect. However, this solution not only increases the cost of LED raw materials but also complicates the circuit design. In addition, the heat generated by a large number of LED lamps will enter the vehicle, resulting in increased heat risk and damage to vehicle parts. Utility Model Content
[0004] The purpose of the utility model is to provide a light uniforming structure to solve the technical problems that the existing light uniformity solution requires a large number of light sources, which leads to increased costs and increased heat generation. The purpose of achieving uniform light of the car lamp by multiple total reflections of light is to reduce costs and heat generation without the need for a large number of light sources.
[0005] In order to solve the above technical problems, the utility model provides a light uniforming structure, comprising: a light uniforming part;
[0006] The light homogenizing portion includes a first reflecting surface, a second reflecting surface, a third reflecting surface and a fourth reflecting surface;
[0007] The first reflecting surface and the second reflecting surface are both inclined relative to the horizontal direction, the first reflecting surface and the second reflecting surface are arranged opposite to each other, and the top end of the first reflecting surface is connected to the top end of the second reflecting surface;
[0008] The third reflecting surface is arranged parallel to and above the first reflecting surface, the fourth reflecting surface is arranged parallel to and above the second reflecting surface, and the top of the third reflecting surface is connected to the top of the fourth reflecting surface;
[0009] Among them, the light is emitted to the first reflecting surface and is totally reflected by the first reflecting surface before being emitted to the third reflecting surface. The light is totally reflected by the third reflecting surface and is emitted to the fourth reflecting surface. The light is totally reflected by the fourth reflecting surface and is emitted to the second reflecting surface. The light is totally reflected by the second reflecting surface and is emitted horizontally.
[0010] Furthermore, the top of the first reflecting surface is connected to the top of the second reflecting surface via a horizontally arranged connecting surface.
[0011] Furthermore, the projection lengths of the first reflecting surface and the third reflecting surface in the horizontal direction are equal.
[0012] Furthermore, the projection lengths of the second reflecting surface and the fourth reflecting surface in the horizontal direction are equal.
[0013] Furthermore, the projection lengths of the first reflecting surface and the second reflecting surface in the vertical direction are equal.
[0014] Furthermore, the projection lengths of the third reflecting surface and the fourth reflecting surface in the vertical direction are equal.
[0015] Furthermore, a light incident portion is provided at one end of the light homogenizing portion close to the first reflecting surface, and a plurality of concentrators are provided at the top of the light incident portion. The concentrators are used to converge the light into vertical parallel light.
[0016] Furthermore, a plurality of fifth reflecting surfaces are provided at one end of the light incident portion away from the light uniforming portion, and light distribution patterns are provided on the plurality of fifth reflecting surfaces. The fifth reflecting surfaces are used for totally reflecting vertical parallel light into horizontal parallel light.
[0017] Furthermore, a light emitting portion is provided at one end of the light uniforming portion close to the second reflecting surface, and the light emitting portion is used for emitting light.
[0018] Furthermore, light distribution patterns are provided on inner sides of the first reflecting surface, the second reflecting surface, the third reflecting surface and the fourth reflecting surface, and the light distribution patterns are used to uniformize light.
[0019] The beneficial effects of the utility model are:
[0020] 1. By setting up the light homogenizing part, the light enters the light homogenizing part horizontally through the condenser and the fifth reflecting surface, and is emitted horizontally and evenly from the light emitting part under the action of the first reflecting surface, the second reflecting surface, the third reflecting surface and the fourth reflecting surface, thereby saving the lamp source cost and improving the light uniformity.
[0021] 2. By setting a connecting surface, the length of the connecting surface can be adjusted according to the usage requirements inside the vehicle. Some vehicles have relatively small internal spaces for headlights. Since the first reflecting surface (second reflecting surface) and the third reflecting surface (fourth reflecting surface) have equal lengths in the horizontal projection direction, shortening the length of the connecting surface and lowering the height of the light-uniforming portion facilitates application in vehicles with different headlight space sizes.
[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0024] Figure 1 This is a schematic diagram of the optical path structure of the light uniforming part of the utility model;
[0025] Figure 2 This is a structural diagram of a light uniforming structure of the utility model;
[0026] Figure 3 yes Figure 1 Bottom view of .
[0027] In the picture:
[0028] 1. Light homogenizing unit; 11. First reflecting surface; 12. Second reflecting surface; 13. Third reflecting surface; 14. Fourth reflecting surface; 15. Connecting surface; 2. Light incident unit; 21. Fifth reflecting surface; 3. Light exit unit; 4. Concentrator. DETAILED DESCRIPTION
[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0030] Example:
[0031] like Figures 1 to 3 As shown, a light uniforming structure includes: a light uniforming part 1, a light input part 2 and a light output part 3. The light input part 2 and the light output part 3 are respectively arranged at the two ends of the light uniforming part 1, and the light input part 2 and the light output part 3 are both arranged horizontally. The light input part 2 and the light output part 3 are both connected to the light uniforming part 1, and the light output part 3 is used for emitting light.
[0032] Among them, the light homogenizing portion 1 includes a first reflecting surface 11, a second reflecting surface 12, a third reflecting surface 13 and a fourth reflecting surface 14. The first reflecting surface 11 and the second reflecting surface 12 are both inclined relative to the horizontal direction. The first reflecting surface 11 and the second reflecting surface 12 are arranged opposite to each other, and the top of the first reflecting surface 11 is connected to the top of the second reflecting surface 12; the third reflecting surface 13 is arranged parallel to the top of the first reflecting surface 11, and the fourth reflecting surface 14 is arranged parallel to the top of the second reflecting surface 12, and the top of the third reflecting surface 13 is connected to the top of the fourth reflecting surface 14.
[0033] The bottom end of the first reflecting surface 11 is connected to the bottom end of the light incident portion 2, and the top end of the first reflecting surface 11 extends obliquely in a direction close to the light exit portion 3; the bottom end of the second reflecting surface 12 is connected to the bottom end of the light exit portion 3, and the top end of the second reflecting surface 12 extends obliquely in a direction close to the light incident portion 2; the first reflecting surface 11 and the second reflecting surface 12 are respectively arranged at both ends of the light homogenizing portion 1, and the first reflecting surface 11 and the second reflecting surface 12 both extend upward along the middle part close to the light homogenizing portion 1, and are symmetrically arranged about the axis of the light homogenizing portion 1; the top end of the first reflecting surface 11 and the top end of the second reflecting surface 12 are connected by a horizontally arranged connecting surface 15, and the first reflecting surface 11, the second reflecting surface 12 and the connecting surface 15 are trapezoidal in shape.
[0034] like Figure 1 As shown, the bottom end of the third reflecting surface 13 is connected to the top of the light incident portion 2, the top end of the third reflecting surface 13 extends obliquely in the direction close to the light exit portion 3, and the third reflecting surface 13 extends upward along the middle part close to the light homogenizing portion 1; the bottom end of the fourth reflecting surface 14 is connected to the top of the light exit portion 3, the top end of the fourth reflecting surface 14 extends obliquely in the direction close to the light incident portion 2, and the fourth reflecting surface 14 extends upward along the middle part close to the light homogenizing portion 1; the top end of the third reflecting surface 13 is connected to the top end of the fourth reflecting surface 14, the third reflecting surface 13 and the fourth reflecting surface 14 are symmetrically arranged about the axis of the light homogenizing portion 1, and the third reflecting surface 13 and the fourth reflecting surface 14 can be directly connected or connected through a horizontally arranged connecting surface 15.
[0035] like Figure 3As shown, a plurality of concentrators 4 are provided at the top of the light entrance part 2, and the plurality of concentrators 4 are connected to the interior of the light entrance part 2. The concentrators 4 are used to converge the light into vertical parallel light. The plurality of concentrators 4 form a row, and a light source is placed above the concentrators 4. The light source emits light into the concentrators 4, and the concentrators 4 converge the divergent light into parallel light. A plurality of fifth reflecting surfaces 21 are provided at one end of the light entrance part 2 away from the light homogenizing part 1, and light distribution patterns are provided on the plurality of fifth reflecting surfaces 21. The plurality of said fifth reflecting surfaces 21 may be in the shape of a concave-convex step surface, a V-surface or a patterned surface. The fifth reflecting surface 21 is used to totally reflect the vertical parallel light into horizontal parallel light. The vertical light gathered by the concentrator 4 is incident on the fifth reflecting surface 21, and the fifth reflecting surface 21 totally reflects the light to form a horizontal light and then injects it into the light homogenizing part 1.
[0036] In this embodiment, the light is converged into vertical parallel light by the concentrator 4 and then emitted to the fifth reflecting surface 21. The light is totally reflected by the fifth reflecting surface 21 to become horizontal parallel light and then emitted to the first reflecting surface 11 and enters the light entrance portion 2; the light is totally reflected by the first reflecting surface 11 and then emitted to the third reflecting surface 13. The light is totally reflected by the third reflecting surface 13 and then emitted horizontally to the fourth reflecting surface 14. The light is totally reflected by the fourth reflecting surface 14 and then emitted to the second reflecting surface 12. The light is totally reflected by the second reflecting surface 12 and then enters the light exit portion 3 horizontally. The light is evenly emitted through the light exit port of the light exit portion 3.
[0037] In this embodiment, the horizontal projection lengths of the first reflecting surface 11 and the third reflecting surface 13 are equal, and the horizontal projection lengths of the second reflecting surface 12 and the fourth reflecting surface 14 are equal; the vertical projection lengths of the first reflecting surface 11 and the second reflecting surface 12 are equal, and the vertical projection lengths of the third reflecting surface 13 and the fourth reflecting surface 14 are equal; the length of the connecting surface 15 is adjusted according to the space size of the vehicle headlight used. When the space is small, the length of the connecting surface 15 can be shortened, and the angles of the first reflecting surface 11, the second reflecting surface 12, the third reflecting surface 13 and the fourth reflecting surface 14 with the horizontal direction are reduced, thereby reducing the height of the light homogenizing portion 1, which is convenient for installation in the vehicle; similarly, when the space is large, the length of the connecting surface 15 can be increased to increase the height of the light homogenizing portion 1; the inner sides of the first reflecting surface 11, the second reflecting surface 12, the third reflecting surface 13 and the fourth reflecting surface 14 are all provided with light distribution patterns, which are used to uniformize the light.
[0038] To sum up, the structure is installed below the light source, and the light emitted by the light source enters the concentrator 4. The concentrator 4 converges the light into parallel light directed vertically downward. The parallel light hits the fifth reflecting surface 21 and is totally reflected horizontally into the light input part 2. The light enters the uniform light part through the light input part 2 and is incident on the first reflecting surface 11. The first reflecting surface 11 totally reflects the light and projects it onto the third reflecting surface 13. The third reflecting surface 13 totally reflects the light and projects it horizontally onto the fourth reflecting surface 14. The fourth reflecting surface 14 totally reflects the light on the second reflecting surface 12. The second reflecting surface 12 totally reflects the optical fiber and projects it horizontally from the light outlet of the light output part 3 to form uniform light.
[0039] The various devices selected in this application are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.
[0040] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.
[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0042] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.
Claims
1. A light uniformity structure, characterized in that: include: Light homogenizing part (1); The light homogenizing portion (1) comprises a first reflecting surface (11), a second reflecting surface (12), a third reflecting surface (13) and a fourth reflecting surface (14); The first reflecting surface (11) and the second reflecting surface (12) are both arranged to be inclined relative to the horizontal direction, the first reflecting surface (11) and the second reflecting surface (12) are arranged opposite to each other, and the top end of the first reflecting surface (11) is connected to the top end of the second reflecting surface (12); The third reflecting surface (13) is arranged parallel to and above the first reflecting surface (11), the fourth reflecting surface (14) is arranged parallel to and above the second reflecting surface (12), and the top end of the third reflecting surface (13) is connected to the top end of the fourth reflecting surface (14); The light is emitted toward the first reflecting surface (11) and is totally reflected by the first reflecting surface (11) before being emitted toward the third reflecting surface (13); the light is emitted toward the fourth reflecting surface (14) after being totally reflected by the third reflecting surface (13); the light is emitted toward the second reflecting surface (12) after being totally reflected by the fourth reflecting surface (14); and the light is emitted horizontally after being totally reflected by the second reflecting surface (12).
2. The light uniforming structure according to claim 1, wherein: The top end of the first reflecting surface (11) and the top end of the second reflecting surface (12) are connected via a horizontally arranged connecting surface (15).
3. The light uniforming structure according to claim 1, wherein: The projection lengths of the first reflecting surface (11) and the third reflecting surface (13) in the horizontal direction are equal.
4. The light uniforming structure according to claim 1, wherein: The projection lengths of the second reflecting surface (12) and the fourth reflecting surface (14) in the horizontal direction are equal.
5. The light uniforming structure according to claim 1, wherein: The projection lengths of the first reflecting surface (11) and the second reflecting surface (12) in the vertical direction are equal.
6. The light uniforming structure according to claim 1, wherein: The projection lengths of the third reflecting surface (13) and the fourth reflecting surface (14) in the vertical direction are equal.
7. The light uniforming structure according to claim 1, wherein: A light input portion (2) is provided at one end of the light-uniform portion (1) close to the first reflecting surface (11), and a plurality of condensers (4) are provided at the top of the light input portion (2). The condensers (4) are used to converge light into vertical parallel light.
8. The light uniforming structure according to claim 7, wherein: A plurality of fifth reflecting surfaces (21) are provided at one end of the light incident portion (2) away from the light homogenizing portion (1), and light distribution patterns are provided on the plurality of fifth reflecting surfaces (21). The fifth reflecting surfaces (21) are used for totally reflecting vertical parallel light into horizontal parallel light.
9. The light uniforming structure according to claim 1, wherein: A light emitting portion (3) is provided at one end of the light homogenizing portion (1) close to the second reflecting surface (12), and the light emitting portion (3) is used for emitting light.
10. The light uniforming structure according to claim 1, wherein: Light distribution patterns are provided on the inner sides of the first reflecting surface (11), the second reflecting surface (12), the third reflecting surface (13) and the fourth reflecting surface (14), and the light distribution patterns are used to homogenize light.