Reversing lamp optical structure
Through the design of the optical conductor structure and the use of optical surface reflection and refraction technology, the problem of uneven light intensity distribution of a single reversing light is solved, and the flexible setting of the reversing light on the outside of the vehicle body and the uniform distribution of light intensity are achieved, avoiding glare.
Patent Information
- Application Number
- CN202423192088.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-23
AI Technical Summary
A single reversing light cannot meet the regulatory requirement of distributing the reversing light intensity to 45° to the left and right, and the light spot design cannot be flexibly set on the outside of the vehicle, resulting in uneven light intensity, which may cause dazzle to the driver behind.
The optical conductor structure includes the first, second, and third optical surfaces and a plane optical surface. Through the reflection and refraction of light, the horizontal diffusion angle of the light spot is increased, and the optical axis is turned obliquely downward to avoid direct light and achieve uniform light intensity distribution.
The light intensity of the individual reversing lights is evenly distributed at 45° to the left and right, avoiding dazzling of the light spot to the rear driver and providing the possibility of flexible setting of the reversing lights on the outside of the vehicle.
Smart Images
Figure CN223448198U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a reversing light optical structure. BACKGROUND
[0002] The reversing light is installed on the tail of the car, is used for illuminating the road surface behind the car, and warns the vehicle and pedestrian behind the car that the car is reversing, and the light outlet of the reversing light is usually vertical wide and horizontal narrow.
[0003] The regulation requirement of the reversing light is that the light intensity needs to be distributed to left and right 45 degrees, and only for the pair of installed reversing light, the inside angle can be reduced to 30 degrees, but at present, the single reversing light is usually adopted, and for the single reversing light, the light intensity distribution of left and right needs to reach 45 degrees angle requirement, so that the light range of left and right of the reversing light is relatively large to meet the requirement.
[0004] Since the light outlet of the reversing light is usually vertical wide and horizontal narrow, and the light spot of the reversing light requires large left and right angle, the light intensity needs to be distributed to left and right 45 degrees, and for the single reversing light, it is more difficult to meet the regulation and road surface requirement, therefore, at present, the single reversing light is generally arranged on the tail lamp of the tail gate close to the middle position, and the reversing light cannot be arranged at other positions, for example, the reversing light cannot be arranged close to the outer side of the car body. SUMMARY
[0005] In view of the above problems, the utility model provides a reversing light optical structure, which effectively solves the problems in the background art.
[0006] The utility model adopts the technical scheme of:
[0007] A reversing light optical structure, comprising a light guide body, the rear end of the light guide body is a fourth optical surface, the front end is provided with a pair of light inlet structures arranged longitudinally and side by side, the upper and lower sides of the light inlet structure are first optical surfaces, the left and right sides are plane optical surfaces, the front end is provided with a light inlet, the center of the light inlet is recessed inward to form a second optical surface, and the center of the second optical surface is a third optical surface.
[0008] As a preferred, the first optical surface is an outward convex arc surface, the first optical surface is used for reflecting the light emitted from the upper and lower sides of the second optical surface in the light inlet, and the light is reflected to the same side for diffusion.
[0009] Since the longitudinal size of the reversing light is large, the light emitted by the LED light source can be directly diffused upward and downward after irradiating the first optical surface to meet the requirement.
[0010] The second optical surface is outwardly convex arc surface, which is used for dispersing light rays and refracting the light rays to the same side plane optical surface, the plane optical surface is used for reflecting the light rays refracted from the second optical surface and diffusing the light rays to the opposite side.
[0011] The second optical surface is outwardly convex arc surface, which is used for dispersing light rays and refracting the light rays to the same side plane optical surface, the plane optical surface is used for reflecting the light rays refracted from the second optical surface and diffusing the light rays to the opposite side.
[0012] The fourth optical surface is used for light emission.
[0013] The fourth optical surface is used for light emission.
[0014] The third optical surface comprises the third upper optical surface and the third lower optical surface, and the upper end of the third upper optical surface is inclined backward relative to the third lower optical surface.
[0015] The third optical surface is used for refracting the light rays obliquely downward.
[0016] The third optical surface comprises the third upper optical surface and the third lower optical surface, and the upper end of the third upper optical surface is inclined backward relative to the third lower optical surface.
[0017] The horizontal size of the reversing lamp is small, and the vertical size is large, but the light intensity angle of the reversing lamp needs to be diffused to 45 degrees left and right, which is equivalent to the main light spot needing 90 degrees of diffusion angle, and the light outlet is too narrow to be not conducive to the diffusion of light intensity. In order to solve the problem, the second optical surface is used to refract the light to the same side plane optical surface, and the plane optical surface is used to reflect the light to the opposite side for diffusion, so as to increase the diffusion angle of the light in the horizontal direction.
[0018] In order to meet the customer's road requirements and solve the problem of LED light spot energy being high and the light emitting surface being small, which causes the rear vehicle driver to be dazzled, the third optical surface is used to turn the LED optical axis obliquely downward, and the third upper optical surface and the third lower optical surface are combined to refract the light rays emitted upward and downward by the LED main light spot at different angles, so that the LED optical axis is obliquely downward.
[0019] The utility model discloses a first optical surface, second optical surface, third optical surface and plane optical surface's combination are crossed to the light spot in horizontal direction, and the diffusion angle is increased, thereby the flexible setting of single reversing lamp in use is convenient, and the optical axis is obliquely turned down in vertical direction, and the dazzling of rear driver caused by reversing lamp is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the structure schematic diagram of the utility model;
[0021] Figure 2 It is Figure 1 It is the A part enlarged structure schematic diagram of the utility model;
[0022] Figure 3 It is the light path drawing of the utility model to the small angle light spot in horizontal direction and cross light;
[0023] Figure 4 It is the light path drawing of the utility model to the small angle light spot and directly spread in vertical direction;
[0024] Figure 5 It is the light path drawing of third optical surface and turning to the optical axis. DETAILED DESCRIPTION
[0025] It should be noted that the following detailed description is exemplary and is intended to provide further description of the present application. 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 application belongs.
[0026] It should be noted that the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural unless the context clearly indicates otherwise, and it will be further understood that the terms "comprising" and / or "including," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof.
[0027] In addition, in the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0028] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.
[0029] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection 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 this utility model based on specific circumstances.
[0030] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0031] The present invention will be described in further detail below through specific embodiments with reference to the accompanying drawings.
[0032] like Figure 1 、 2 As shown, a reversing light optical structure includes a light conductor 1, the rear end of the light conductor 1 is a fourth optical surface 2, and the front end is provided with a pair of light input structures 3 arranged longitudinally side by side, the upper and lower sides of the light input structure 3 are first optical surfaces 31, and the left and right sides are flat optical surfaces 32, and the front end is provided with a light entrance 33, the center of the light entrance 33 is recessed inward to form a second optical surface 35, and the center of the second optical surface 35 is the third optical surface 34.
[0033] The first optical surface 31 is an outwardly convex arc surface, and there is a gap between the upper and lower sides of the second optical surface 35 and the light entrance 33. The first optical surface 31 is used to reflect the light emitted from the upper and lower sides of the second optical surface 35 in the light entrance 33, and reflect the light to the same side for diffusion.
[0034] The second optical surface 35 is an outwardly convex arc surface, which is used to scatter light and refract it to the plane optical surface 32 on the same side. The plane optical surface 32 is used to reflect the light refracted from the second optical surface 35 and reflect the light to the opposite side for diffusion.
[0035] The fourth optical surface 2 is used for emitting light.
[0036] The third optical surface 34 includes a third upper optical surface 341 and a third lower optical surface 342 connected together. The upper end of the third upper optical surface 341 is tilted backward relative to the third lower optical surface 342 .
[0037] The third optical surface 34 is used to refract light obliquely downward.
[0038] In actual use, the LED light source is set at the front end of the light entrance. The light emitted by the LED light source includes the optical axis and a small-angle light spot. The diffusion principle is as follows:
[0039] For small angle spot:
[0040] like Figure 3 As shown, cross lighting is performed in the horizontal direction: the small-angle light spot emitted by the LED light source is irradiated onto the second optical surface 35. After the second optical surface 35 scatters the light, it is irradiated onto the flat optical surface 32 on the same side. The light is reflected by the flat optical surface 32 to the opposite side for diffusion, thereby increasing the diffusion angle in the horizontal direction.
[0041] like Figure 4 As shown, the light is diffused directly in the vertical direction: the small-angle light emitted by the LED light source passes through the gaps on the upper and lower sides of the second optical surface 35 and directly illuminates the first optical surface 31, and the light is directly reflected to the same side by the first optical surface 31 for diffusion;
[0042] For the optical axis:
[0043] like Figure 5 As shown, the optical axis is turned obliquely downward: the light axis emitted by the LED light source is irradiated onto the third optical surface 34, a part of which is irradiated obliquely upward onto the third upper optical surface 341, and the other part is irradiated obliquely downward onto the third lower optical surface 342, and both are refracted obliquely downward by the third upper optical surface 341 and the third lower optical surface 342 respectively, and the steering angle of the third upper optical surface 341 is larger, and the steering angle of the third lower optical surface 342 is smaller, so that the two are irradiated obliquely downward in a relatively consistent manner.
[0044] Finally, it should be noted that the above is only the specific embodiments of the present application. Obviously, the present application is not limited to the above embodiments, but can have many variations. All variations that can be directly derived or inferred from the present application disclosed herein by those of ordinary skill in the art should be considered within the scope of the present application.
Claims
1. A reversing light optical structure, characterized in that: The invention comprises a light conductor (1), wherein the rear end of the light conductor (1) is a fourth optical surface (2), and the front end is provided with a pair of light entrance structures (3) arranged side by side in the longitudinal direction, the upper and lower sides of the light entrance structure (3) are first optical surfaces (31), and the left and right sides are plane optical surfaces (32), and the front end is provided with a light entrance (33), the center of the light entrance (33) is recessed inward to form a second optical surface (35), and the center of the second optical surface (35) is a third optical surface (34).
2. The optical structure of a reversing light according to claim 1, characterized in that: The first optical surface (31) is an outwardly convex arc surface, and is used to reflect light emitted from the upper and lower sides of the second optical surface (35) in the light entrance (33), and reflect the light to the same side for diffusion.
3. The optical structure of a reversing light according to claim 1, characterized in that: The second optical surface (35) is an outwardly convex arc surface, and the second optical surface (35) is used to scatter light and refract the light to the plane optical surface (32) on the same side. The plane optical surface (32) is used to reflect the light refracted from the second optical surface (35) and reflect the light to the opposite side for diffusion.
4. The optical structure of a reversing light according to claim 1, characterized in that: The fourth optical surface (2) is used for emitting light.
5. The optical structure of a reversing light according to claim 1, characterized in that: The third optical surface (34) comprises a third upper optical surface (341) and a third lower optical surface (342) connected together, and the upper end of the third upper optical surface (341) is tilted backward relative to the third lower optical surface (342).
6. The optical structure of a reversing light according to claim 5, characterized in that: The third optical surface (34) is used to refract light obliquely downward.