Structure for realizing uniformity of position lamp by utilizing double-color structure multiple reflection
By using a dual-color condenser and a multi-reflection structure with a reflector, the problem of uneven lighting in automotive position lights is solved, achieving uniformity of the luminous surface and brightness in the static appearance, thus improving the overall optical effect of automotive position lights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-12
AI Technical Summary
There is still room for improvement in the current technology for achieving uniformity in automotive position lights, especially in terms of uniformity of light distribution and brightness of static appearance.
采用双色结构多重反射结构，包括透明和白色材料的双色聚光器、反射镜及带有皮纹的透明内灯罩，通过多重反射实现光线的均匀分布，利用透明材料的折射和白色材料的反射，配合反射镜的二次反射，实现发光面在各个角度的均匀性。
When the lamp is lit, it achieves uniformity of the light-emitting surface, eliminates the defects of bright black areas when the lamp is static, and improves the overall light uniformity and appearance of the position lamp.
Smart Images
Figure CN224229802U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive lighting technology, specifically to a structure that utilizes a dual-color structure with multiple reflections to achieve uniformity in position lights. Background Technology
[0002] Currently, in the field of automotive lighting technology, the uniformity of position lights is mainly achieved through the following types: (1) Type 1 uses LED + reflector + dual-color thick-walled component; (2) Type 2 uses LED + condenser + dual-color thick-walled component. In Type 1, LED light is converted into parallel light through a reflector, and the parallel light is diffused through the light guide surface of the thick-walled component to achieve the requirement of uniform lighting of position lights.
[0003] For example, patent CN111561683A discloses "a high-efficiency and high-uniformity automotive position light arrangement structure", which adopts the method of LED + reflector + thick-walled light guide plate. The light-emitting surface of all the strip lights on the car light is designed as a thick-walled light guide. The thick-walled light guide is made of diffused PC material and diffused PMMA material. Then, a reflector bowl is arranged on the back of the thick-walled light guide. The PCB and LED are arranged above or below the reflector bowl. When the LED is lit, the light is converted into parallel light through the reflector bowl. Then the parallel light is guided into the diffusion material of the light surface through the thick-walled light guide, thereby improving the uniformity of the light. This structure can reduce the number of parts inside the lamp, reduce LED power, provide uniform light emission and low cost.
[0004] For example, patent CN109340697A discloses "an optical system for a concentrator in automotive lighting with a light curtain effect." It employs a structure of LED + concentrator + dual-color thick-walled component. The light emitted by the LED light source, after passing through the concentrator, is partially converted into quasi-parallel light, entering the transparent part of the dual-color injection-molded thick-walled component and passing through the patterned area, thus creating a patterned lighting effect. The other part leaks through the upper surface of the concentrator, enters the scattering material part of the dual-color injection-molded thick-walled component, and finally passes through the light curtain area of the transparent part of the dual-color injection-molded thick-walled component, forming a light curtain lighting effect, thus improving the lighting uniformity of the patterned area. While the above solution can improve the uniformity of light to a certain extent, it can be further improved. Utility Model Content
[0005] The purpose of this invention is to design a structure that utilizes a dual-color structure with multiple reflections to achieve uniformity in position lights. The aim is to use the multiple reflection structure to achieve uniform light emission from the light-emitting surface at all angles, thereby further improving the uniformity of the position light's illumination surface.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0007] This utility model designs a structure that utilizes a dual-color structure with multiple reflections to achieve uniformity in position lights. The structure includes the following features:
[0008] The outer lamp cover has a light-incident surface and a light-exit surface;
[0009] An inner lampshade is disposed on the light-incident surface side of the outer lampshade, and has an inner lampshade front surface and an inner lampshade top surface continuously disposed from bottom to top;
[0010] A decorative ring is disposed on the light-incident surface side of the outer lampshade. The two ends of the decorative ring are respectively connected to the outer lampshade and the inner lampshade, and the other end of the inner lampshade is connected to the outer lampshade.
[0011] The circuit board assembly is disposed on the light-incident surface side of the outer lamp cover and located below the inner lamp cover;
[0012] A dual-color condenser is disposed above the circuit board assembly. The dual-color condenser is formed by splicing a colorless light-transmitting part and a white reflective part. The surface of the light-transmitting part is provided with a refractive pattern, and the surface of the reflective part is provided with a first reflective pattern.
[0013] Several LEDs are electrically connected to the circuit board assembly, and the LEDs are correspondingly arranged below the light-transmitting part so that light can be emitted from the light-transmitting part.
[0014] And a reflector, which is disposed above the dual-color condenser, with its two ends respectively snapped into the inner lamp cover and the dual-color condenser. The surface of the reflector is also provided with a second reflective pattern, which is used to reflect the light emitted by the LED light to the front of the inner lamp cover and the reflective part. The first reflective pattern on the reflective part reflects the light a second time to the top surface of the inner lamp cover.
[0015] Specifically, this utility model aims to propose a structural form that combines a dual-color concentrator structure (transparent + white) with a reflector and an inner lampshade, and utilizes multiple reflections to achieve uniform illumination of the position lamp's light-emitting surface.
[0016] Furthermore, a structure that utilizes a dual-color structure with multiple reflections to achieve uniformity of position lights: the inner lampshade is made of transparent plastic.
[0017] Furthermore, a structure that utilizes a dual-color structure with multiple reflections to achieve uniformity of position lights is provided: the inner and outer surfaces of the inner lampshade are both provided with a textured surface with a half-value angle of 10 to 15°.
[0018] Furthermore, a structure that utilizes a dual-color structure with multiple reflections to achieve uniformity of position lights: the light-transmitting part is made of a transparent material, and the reflective part is made of a white material.
[0019] Furthermore, a structure that utilizes a dual-color structure with multiple reflections to achieve uniformity of position lights: the inner lampshade and decorative ring are fixed by laser welding and then snapped onto the reflector.
[0020] Furthermore, a structure that utilizes a dual-color structure with multiple reflections to achieve uniformity of position lights is provided: the reflector is made of plastic.
[0021] This invention relates to a structure that utilizes a dual-color structure with multiple reflections to achieve uniform illumination of a position light. The reflector is made of plastic, the dual-color condenser is a combination of transparent and white materials, and the inner lampshade is made of transparent plastic with a textured finish on both its inner and outer surfaces. This invention achieves uniform illumination of the position light's light-emitting surface through a combination of a dual-color condenser, a reflector, and an inner lampshade, employing the principle of multiple reflections. Specifically, it achieves uniform light emission from all angles through multiple reflections between the reflective part (white material) on the dual-color condenser and the reflector.
[0022] The beneficial effects of this utility model are:
[0023] This invention utilizes a dual-color structure with multiple reflections to achieve uniformity in position lighting. It employs a combination of a dual-color concentrator (transparent + white material) and a reflector, along with an inner lampshade featuring a double-sided textured surface. When the lamp is off, viewed from above from the vehicle installation perspective, the functional surface maintains a bright appearance with no obvious dark areas. When the lamp is illuminated, the light emitted by the LED light is reflected by the translucent part of the dual-color concentrator onto the reflector. Part of the light is reflected directly onto the front of the inner lampshade, while another part is reflected onto the reflective part of the dual-color concentrator, creating a secondary reflection that illuminates the top surface of the inner lampshade, supplementing its brightness. This results in uniform light emission across the entire inner lampshade surface, further enhancing the uniformity of light emission. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 A cross-sectional view of a structure for achieving uniformity of position lights by utilizing a dual-color structure with multiple reflections, as designed in Embodiment 1 of this utility model;
[0026] Figure 2 This is an isometric view of the dual-color condenser in Example 1;
[0027] Figure 3This is an isometric view of the reflector in Example 1;
[0028] Figure 4 The optical circuit diagram for the structure designed in Example 1.
[0029] The markings in the image are as follows:
[0030] 1-Outer lampshade, 2-Inner lampshade, 3-Decorative ring, 4-Circuit board assembly, 5-Dual-color condenser, 6-LED lamp, 7-Reflector, 11-Light-incident surface, 12-Light-out surface, 21-Front side of inner lampshade, 22-Top surface of inner lampshade, 51-Light-transmitting part, 52-Reflecting part, 71-Secondary reflection pattern. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0032] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "top," and "bottom," etc., indicating orientation or positional relationships, 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, and therefore should not be construed as a limitation of this utility model. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein.
[0033] Example 1
[0034] like Figures 1-3 As shown, this embodiment 1 designs a structure that utilizes a dual-color structure with multiple reflections to achieve uniformity in position lights. This structure includes the following specific configurations:
[0035] The outer lamp cover 1 has a light-incident surface 11 and a light-emitting surface 12 facing each other;
[0036] The inner lampshade 2 is made of transparent plastic. The inner lampshade 2 is located on the light-incident surface 11 side of the outer lampshade 1. The side of the inner lampshade 2 closest to the outer lampshade 1 is the light-emitting surface. The light-emitting surface has an inner lampshade front surface 21 and an inner lampshade top surface 22 continuously arranged from bottom to top. The light-emitting surface (i.e., the outer surface) and the side opposite to the light-emitting surface (i.e., the inner surface) of the inner lampshade 2 are respectively provided with a texture with a half-value angle of 10 to 15°.
[0037] The decorative ring 3 is disposed on one side of the light-incident surface 11 of the outer lamp cover 1. One end of the decorative ring 3 is assembled with the outer lamp cover 1, and the other end is fixed to the inner lamp cover 2 by laser welding. The other end of the inner lamp cover 2 is connected to the outer lamp cover 1.
[0038] The circuit board assembly 4 is disposed on one side of the light-incident surface 11 of the outer lamp cover 1 and located below the inner lamp cover 2;
[0039] A dual-color condenser 5 is disposed above the circuit board assembly 4. The dual-color condenser 5 is formed by splicing a colorless light-transmitting part 51 and a white reflective part 52. The light-transmitting part 51 is made of transparent material and its surface is provided with a refractive pattern. The reflective part 52 is made of white material and its surface is provided with a first reflective pattern.
[0040] A plurality of LED lights 6 are electrically connected to the circuit board assembly 4. The plurality of LED lights 6 are correspondingly arranged below the light-transmitting part 51 so that the light emitted by the LED lights 6 can be emitted.
[0041] And a reflector 7, which is made of plastic, is placed above the dual-color condenser 5. Its two ends are respectively snapped to the inner lampshade 2 and the dual-color condenser 5 (specifically, the inner lampshade 2 and the decorative ring 3 are fixed by laser welding and then snapped to one end of the reflector 7, and the other end of the reflector 7 is connected to the light-transmitting part 51 of the dual-color condenser 5). The surface of the reflector 7 is also provided with a second reflective pattern 71. Through the second reflective pattern 71, a part of the light emitted by the LED lamp 6 can be directly reflected to the front 21 of the inner lampshade, and another part of the light can be reflected to the reflective part 52. The light can be reflected a second time to the top surface 22 of the inner lampshade by the first reflective pattern provided on the reflective part 52.
[0042] Specifically, such as Figure 4As shown, the light emitted by the LED lamp 6 first passes through the dual-color concentrator 5 (light-transmitting part 51). Under the action of the refractive pattern on the surface of the dual-color concentrator 5, the light is refracted and shines on the surface of the reflector 7. Then, under the action of the second reflection pattern 71, part of the light is reflected in a straight line and shines on the front surface of the inner lampshade 2 (front surface 21 of the inner lampshade). Another part of the light shines on the white material (i.e., the reflective part 52) of the dual-color concentrator 5 under the action of the second reflection pattern 71, forming a secondary reflection and shining on the top surface 22 of the inner lampshade. This supplements the brightness of the light-emitting surface above the inner lampshade 2 and achieves uniform light emission of the entire light-emitting surface of the inner lampshade 2.
[0043] The above embodiment 1 adopts a structure combining a dual-color concentrator 5 (transparent + white material) and a reflector 7, and is equipped with an inner lamp cover 2 with double-sided leather texture. When the lamp is not lit, the functional surface (light-emitting surface 12) of the lamp can maintain a bright static appearance without obvious black area defects when viewed from the vehicle installation perspective. When the lamp is lit, the multiple reflections between the reflector 52 on the dual-color concentrator 5 and the reflector 7 are used to achieve uniform light emission from the light-emitting surface of the inner lamp cover 2 at all angles.
[0044] The above-described preferred embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of this utility model. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A structure that utilizes a dual-color structure with multiple reflections to achieve uniformity in position lights, characterized in that, This structure includes the following settings: The outer lamp cover (1) has a light-incident surface (11) and a light-exit surface (12) facing each other; The inner lampshade (2) is disposed on one side of the light-incident surface (11) of the outer lampshade (1), and has an inner lampshade front surface (21) and an inner lampshade top surface (22) continuously disposed from bottom to top; A decorative ring (3) is disposed on one side of the light-incident surface (11) of the outer lampshade (1). The two ends of the decorative ring (3) are respectively connected to the outer lampshade (1) and the inner lampshade (2), and the other end of the inner lampshade (2) is connected to the outer lampshade (1). The circuit board assembly (4) is disposed on one side of the light-incident surface (11) of the outer lamp cover (1) and located below the inner lamp cover (2); A dual-color condenser (5) is disposed above the circuit board assembly (4). The dual-color condenser (5) is formed by splicing a colorless light-transmitting part (51) and a white reflective part (52). The surface of the light-transmitting part (51) is provided with a refractive pattern, and the surface of the reflective part (52) is provided with a first reflective pattern. Several LED lights (6) are electrically connected to the circuit board assembly (4) and are respectively disposed below the light-transmitting part (51); And a reflector (7), which is disposed above the dual-color condenser (5), with its two ends respectively snapped into the inner lamp cover (2) and the dual-color condenser (5). The surface of the reflector (7) is also provided with a second reflective pattern (71), which is used to reflect the light emitted by the LED lamp (6) to the front (21) of the inner lamp cover and the reflective part (52). The first reflective pattern reflects the light a second time to the top surface (22) of the inner lamp cover.
2. The structure for achieving uniformity of position lights using a dual-color structure with multiple reflections according to claim 1, characterized in that, The inner lampshade (2) is made of transparent plastic.
3. A structure for achieving uniformity of position lights using a dual-color structure with multiple reflections, as described in claim 1 or 2, characterized in that... The inner and outer surfaces of the inner lampshade (2) are both provided with a textured surface with a half-value angle of 10 to 15°.
4. The structure for achieving uniformity of position lights using a dual-color structure with multiple reflections according to claim 1, characterized in that, The light-transmitting part (51) is made of transparent material, and the reflective part (52) is made of white material.
5. The structure for achieving uniformity of position lights using a dual-color structure with multiple reflections according to claim 1, characterized in that, The inner lampshade (2) and the decorative ring (3) are fixed by laser welding and then snapped into the reflector (7).
6. The structure for achieving uniformity of position lights using a dual-color structure with multiple reflections according to claim 1, characterized in that, The reflector (7) is made of plastic.