A new light-emitting structure of a thick-wall part of a backup lamp

By using a zoned and layered staggered layout and directional diffusion control, the problem of uneven brightness in the light-emitting area of ​​the thick-walled component of the reversing light was solved, achieving improved brightness uniformity and luminous efficiency, and adapting to the installation needs of different vehicle models.

CN224454405UActive Publication Date: 2026-07-03GUANGDONG JIALI AUTOMOBILE LAMP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG JIALI AUTOMOBILE LAMP CO LTD
Filing Date
2025-07-14
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The light-emitting area of ​​the thick-walled reversing light component is uneven in brightness due to the diffusion pattern, especially with obvious dark areas in the middle, which cannot meet the luminous intensity requirements of regulations.

Method used

The light-emitting area is divided into a partitioned and layered staggered layout, with the light-emitting area divided into a main light-emitting area and a diffusion area, which are staggered in the horizontal direction. The main light-emitting area is vertically divided into multiple main light-emitting units, and the diffusion area is vertically divided into three types of diffusion units with different functions. Through micro-unit design and directional diffusion control, the precise spatial distribution of light is achieved.

Benefits of technology

It eliminates the central dark area, improves brightness uniformity, meets regulatory requirements while increasing light efficiency, reduces design costs, and adapts to the installation needs of different vehicle models.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel light -emitting structure of thick -walled piece of reversing lamp, including wall thickness spare body, the light -emitting area of wall thickness spare body includes main light -emitting area and diffusion area, main light -emitting area and diffusion area staggered distribution arrangement on the transverse, main light -emitting area is divided into a plurality of main light -emitting monomer on the longitudinal, diffusion area is divided into a plurality of diffusion monomer on the longitudinal, diffusion monomer includes first function diffusion monomer, second function diffusion monomer and third function diffusion monomer. The utility model through micro - unit staggered distribution, diffusion function directional subdivision and single double lamp dynamic adaptation three big innovations, guaranteeing that reversing lamp satisfies the while of regulation intensity requirement, thoroughly solve the traditional thick -walled piece center dark area problem to the light efficiency and design flexibility of remarkable promotion, and its core value lies in the structural innovation replacement complex brightening technology, possesses the mass production advantage of low -cost, high reliability.
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Description

Technical Field

[0001] This utility model relates to a new type of light-emitting structure for a thick-walled component of a reversing light. Background Technology

[0002] The light emission principle of thick-walled reversing light components is as follows: light is collected by a concentrator and then reflected by a 45° surface to the light-emitting surface. Currently, in thick-walled reversing light lenses, due to national standards for reversing lights, minimum luminous intensity must be achieved at 45° upwards and downwards (5° and 0° respectively). To meet these requirements, the light-emitting area of ​​the thick-walled reversing light component will have these three diffusion patterns in the center, such as... Figure 1 As shown, the brightness of the diffused pattern will be significantly reduced due to the diffusion of light, resulting in uneven overall light emission and a noticeable dark area in the center of the luminous area. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a novel light-emitting structure for a thick-walled component of a reversing light, effectively solving the problems mentioned in the background art.

[0004] The technical solution adopted in this utility model is:

[0005] A novel light-emitting structure for a thick-walled reversing light component includes a thick-walled component body. The light-emitting area of ​​the thick-walled component body includes a main light-emitting area and a diffusion area. The main light-emitting area and the diffusion area are arranged alternately in the transverse direction. The main light-emitting area is divided into multiple main light-emitting units in the longitudinal direction. The diffusion area is divided into multiple diffusion units in the longitudinal direction. The diffusion units include a first functional diffusion unit, a second functional diffusion unit, and a third functional diffusion unit.

[0006] Preferably, the first functional diffusion monomer, the second functional diffusion monomer, and the third functional diffusion monomer are arranged in an alternating pattern in both the transverse and longitudinal directions of the light-emitting region.

[0007] Preferably, the height and width of the main luminescent monomer are both 'a', and the width of the diffuser monomer is 0.5a and the height is 'a', where 'a' is a constant greater than 0.

[0008] Preferably, a is 1 or 0.8 mm.

[0009] Preferably, the diffusion direction of the first functional diffusion monomer is 45° upward and 5° outward, that is, 45° to the left and / or right and upward, the diffusion direction of the second functional diffusion monomer is 45° outward and 0° outward, that is, 45° horizontal irradiation to the left and / or right, and the diffusion direction of the third functional diffusion monomer is 45° downward and 5° outward, that is, 45° to the left and / or right and downward.

[0010] When the two reversing lights are used in combination, the diffusion direction of the first functional diffuser unit of the left reversing light is 45° upward and 5° to the left, the diffusion direction of the second functional diffuser unit is 45° 0° to the left, and the diffusion direction of the third functional diffuser unit is 45° downward and 5° to the left. The diffusion direction of the first functional diffuser unit of the right reversing light is 45° upward and 5° to the right, the diffusion direction of the second functional diffuser unit is 45° 0° to the right, and the diffusion direction of the third functional diffuser unit is 45° downward and 5° to the right.

[0011] When a single reversing light is in use, the diffusion direction of the first functional diffuser unit of the reversing light is 45° upward 5° to the left and 45° upward 5° to the right, the diffusion direction of the second functional diffuser unit is 45° 0° to the left and 45° 0° to the right, and the diffusion direction of the third functional diffuser unit is 45° downward 5° to the left and 45° downward 5° to the right.

[0012] The innovative points of this utility model are:

[0013] 1. Zoned and layered staggered layout:

[0014] The light-emitting area is divided into a main light-emitting area and a diffusion area, and these are staggered in the horizontal direction.

[0015] The main light-emitting area is vertically divided into multiple main light-emitting cells of the same size (both height and width are a), and the diffusion area is vertically divided into three types of diffusion cells with different functions (first, second, and third functional diffusion cells), each cell having a width of 0.5a and a height of a;

[0016] Through micro-unit design, the diffusion functional units and the main light-emitting units are arranged in an alternating manner in space, breaking the brightness discontinuity caused by the traditional centralized diffusion pattern.

[0017] 2. Targeted segmentation and precise control of diffusion function:

[0018] The diffusion monomers are designed independently from three key angles required by regulations:

[0019] First functional diffuser: Directional diffusion to the outer 45° and 5° upward (left / right 45° and upward);

[0020] Second functional diffuser monomer: Directional diffusion to the outer 45°0° (left / right 45° horizontal direction);

[0021] Third functional diffuser: Directional diffusion to the outer 45° downward 5° (left / right 45° and downward 5°);

[0022] Optical units are independently designed to meet the requirements of different regulations, enabling precise spatial allocation of light.

[0023] 3. Dynamic adaptation between single-lamp and dual-lamp modes:

[0024] Dual-lamp mode: The left and right lamps work together, for example, all diffuser units of the left lamp deflect only to the left, and the right lamp deflects only to the right;

[0025] Single lamp mode: Each diffuser unit simultaneously covers the corresponding angles on the left and right sides (e.g., the first functional unit diffuses simultaneously to the left / right at 45° and 5° upward).

[0026] The directional configurability of the optical unit allows for flexible adaptation to the installation requirements of different vehicle models.

[0027] The beneficial effects of this utility model are:

[0028] 1. Completely eliminates central dark areas and improves brightness uniformity:

[0029] Traditional solutions suffer from a sharp drop in brightness in the central area (dark areas) due to the concentrated placement of diffusion patterns.

[0030] This solution breaks down the diffusion function into tiny units and arranges them alternately with the main light-emitting units, so that the light loss in the diffusion area is compensated by the surrounding main light-emitting units, achieving uniform brightness on the light-emitting surface without dark areas.

[0031] 2. Precisely meets regulatory light intensity requirements:

[0032] The three functional diffusion monomers are independently optimized for three key angles: 45° top 5°, 45° 0°, and 45° bottom 5°.

[0033] Effect: Ensures stable compliance with regulatory requirements for luminous intensity at the required angles without sacrificing brightness in other areas;

[0034] 3. Improve light efficiency:

[0035] The size ratio of the main light-emitting unit (width a) to the diffuser unit (width 0.5a) has been optimized: the main light-emitting area occupies a larger area to maintain the basic brightness, while the diffuser area reduces the weakening of the overall brightness through a narrow and wide design;

[0036] Results: While meeting diffusion requirements, the overall luminous efficacy is improved by approximately 20% (based on optical simulation data of the staggered micro-unit layout).

[0037] 4. High flexibility in adaptation:

[0038] The single-lamp mode can independently cover the entire angle, while the dual-lamp mode achieves seamless splicing of light patterns through the division of labor between the left and right lamps.

[0039] Effects: Reduces design costs for automakers; the same structure can be used for different vehicle configurations.

[0040] This utility model achieves three major innovations: staggered distribution of micro-units, directional subdivision of diffusion function, and dynamic adaptation of single and dual lamps. While ensuring that the reversing light meets the regulatory strength requirements, it completely solves the problem of the dark area in the center of traditional thick-walled parts and significantly improves light efficiency and design flexibility. Its core value lies in replacing complex brightening processes with structural innovation, and it has the advantages of low cost and high reliability in mass production. Attached Figure Description

[0041] Figure 1 This is a structural diagram of a conventional thick-walled reversing light component;

[0042] Figure 2 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0043] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, 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 pertains.

[0044] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] Furthermore, 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," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0046] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0048] 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.

[0049] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0050] like Figure 2 As shown, a novel reversing light thick-walled component light-emitting structure includes a thick-walled component body 1. The light-emitting area of ​​the thick-walled component body 1 includes a main light-emitting area 2 and a diffusion area 3. The main light-emitting area 2 and the diffusion area 3 are arranged alternately in the horizontal direction. The main light-emitting area 2 is divided into multiple main light-emitting units 21 in the vertical direction. The diffusion area 3 is divided into multiple diffusion units 31 in the vertical direction. The diffusion unit 31 includes a first functional diffusion unit, a second functional diffusion unit, and a third functional diffusion unit.

[0051] The first, second, and third functional diffusers are arranged in an alternating pattern in both the transverse and longitudinal directions of the light-emitting region.

[0052] The height and width of the main luminescent monomer 21 are both a, and the width of the diffuser monomer 31 is 0.5a and the height is a, where a is a constant greater than 0.

[0053] The value of 'a' is 1 or 0.8 mm.

[0054] The diffusion direction of the first functional diffusion monomer is 45° upward and 5° outward, the diffusion direction of the second functional diffusion monomer is 45° downward and 0° outward, and the diffusion direction of the third functional diffusion monomer is 45° downward and 5° outward.

[0055] This invention, through a micro-unit staggered layout and directional diffusion control, eliminates the central dark area of ​​traditional solutions while meeting regulatory light intensity requirements, thereby improving overall brightness and uniformity. Its operation consists of the following three layers of logic:

[0056] 1. Spatial Structure: A staggered layout with partitioned and layered zones.

[0057] Light-emitting region structure:

[0058] Main light-emitting area: Consists of square micro-units of size a×a (e.g., 1mm×1mm) arranged vertically, responsible for providing basic high-brightness illumination;

[0059] The diffusion zone is divided into three functional units (width 0.5a, height a), which correspond to the three key angles required by regulations (5° above 45°, 0° at 45°, and 5° below 45°).

[0060] staggered arrangement:

[0061] The main emitting cells and the diffuser cells are arranged alternately in the horizontal direction (e.g., main emitting cell → diffuser cell → main emitting cell → …). This arrangement allows the light loss in the diffuse region to be compensated by the adjacent high-brightness main emitting cells, avoiding dark areas caused by concentrated diffusion.

[0062] Horizontal: Main luminescent area → Diffusion area → Main luminescent area → Diffusion area...

[0063] Each diffusion region may contain three functional monomers (vertically staggered).

[0064] 2. Optical control (directional diffusion and precise light distribution):

[0065] Functional breakdown of diffuse monomers:

[0066] Monomer type Diffusion direction Legal and regulatory perspectives First functional diffused monomer 45° to the left / right and 5° upward 45° on the outside and 5° on the top Second functional diffuser monomer 45° horizontal on the left / right side 45°0° on the outside Third functional diffuser monomer 45° to the left / right and 5° downwards 45° outside and 5° below

[0067] Implementation technology:

[0068] Each diffuser monomer surface is designed with microprisms or microlenses to precisely deflect light to the target angle through refraction / reflection, for example:

[0069] First functional diffuser: The prism tilt design causes the incident light to be deflected upward by 5° and then emitted laterally at 45°;

[0070] Dual-lamp mode optimization: all individual lamps on the left side deflect only to the left, and all lamps on the right side deflect only to the right, avoiding beam overlap and waste.

[0071] 3. Dynamic adaptation (single / dual lamp mode switching):

[0072] Dual-light mode (left and right lights working together):

[0073] Left-side lamp diffuser unit: only covers the left 45°±5° (e.g., the first functional diffuser unit only covers the upper 5° of the left 45°).

[0074] Right-side lamp diffuser unit: only covers the right side 45°±5°;

[0075] Effect: The left and right lights combine to form a complete light pattern with no overlapping brightness areas, resulting in high light efficiency.

[0076] Single-lamp mode (independent full-angle coverage):

[0077] Each diffusion monomer simultaneously covers the symmetrical angles on both the left and right sides (e.g., the first functional diffusion monomer simultaneously covers 5° above 45° on the left and 5° above 45° on the right).

[0078] Implementation method: Design bidirectional deflection microstructures (such as symmetrical V-shaped prisms) on the surface of the monomer.

[0079] Workflow example (dual-light mode):

[0080] Light collection: The LED light source is collected and directed to the incident surface of the thick-walled component by a condenser (not shown);

[0081] Main optical path transmission:

[0082] The light entering the main light-emitting unit passes through directly and is emitted vertically with high brightness (without deflection).

[0083] Diffusion optical path control:

[0084] The light entering the first functional diffuser is deflected to the left at 45° and 5° above (left-side light);

[0085] The light entering the second functional diffuser is deflected to the left at 45°0° (left-side light);

[0086] The light entering the third functional diffuser is deflected to the left at 45° and 5° below (left-side light);

[0087] The same applies to the right-side light, covering the right-side angle;

[0088] Brightness compensation: The local brightness reduction of the diffuser is compensated by the high brightness of the adjacent main emitting cells, resulting in a uniform light-emitting surface without dark areas.

[0089] Finally, it should be noted that the above examples are merely specific embodiments of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A novel light-out structure of a thick-wall member of a backup lamp, characterized by, The component includes a thick-walled body (1), the light-emitting area of ​​which includes a main light-emitting area (2) and a diffusion area (3). The main light-emitting area (2) and the diffusion area (3) are arranged alternately in the transverse direction. The main light-emitting area (2) is divided into multiple main light-emitting units (21) in the longitudinal direction. The diffusion area (3) is divided into multiple diffusion units (31) in the longitudinal direction. The diffusion unit (31) includes a first functional diffusion unit, a second functional diffusion unit, and a third functional diffusion unit.

2. The light outlet structure of a thick-walled reversing lamp according to claim 1, characterized in that, The first, second, and third functional diffusers are arranged in an alternating pattern in both the transverse and longitudinal directions of the light-emitting region.

3. The light-out structure of a novel thick-wall reversing lamp according to claim 2, characterized in that, The height and width of the main luminescent monomer (21) are both a, and the width of the diffuser monomer (31) is 0.5a and the height is a, where a is a constant greater than 0.

4. The light outlet structure of a thick-walled reversing lamp according to claim 3, characterized in that, The value of 'a' is 1 or 0.8 mm.

5. The light outlet structure of a thick-walled reversing lamp according to claim 4, characterized in that, The diffusion direction of the first functional diffusion monomer is 45° upward and 5° outward, the diffusion direction of the second functional diffusion monomer is 45° downward and 0° outward, and the diffusion direction of the third functional diffusion monomer is 45° downward and 5° outward.