Vehicle tail light

Abstract

The invention discloses a vehicle tail light. The light uses the diffusing reflection of a white color reflection mirror to generate a uniform lighting effect. The light comprises a white reflection mirror arranged at the front side of an LED light body and an LED light source arranged on the PCB board above the reflection mirror. The white reflection mirror and the LED are used, the diffusing reflection of the LED light on the reflection mirror is used for forming the continuous lighting effect. The white reflection mirror is characterized in that the reflection surface is smooth without stepping sections, and the surface receives dermatoglyph treatment rather than aluminizing.

Description

technical field [0001] The invention relates to the field of automobile lamp manufacturing, in particular to an automobile tail lamp using a white reflector to produce a uniform electricity effect. Background technique [0002] At present, LEDs are widely used in automotive exterior lights. LEDs can be used in the following two types of automotive exterior lights. One is lighting, such as low beams, high beams, front fog lights, license plate lights, and corner lights. , they are used to provide drivers with good road lighting; the other is signal lights, such as daytime running lights, front and rear position lights, front and rear turn signals, side marker lights, brake lights, reversing lights, rear fog lights, etc. They are used to provide driving information of the vehicle to other vehicles or pedestrians. [0003] In the past, for the design of LED reflectors, a parabolic surface was used as a reference plane, and a diffusion pattern was designed on the reference surf...

AI Technical Summary

Problems solved by technology

[0003] In the past, for the design of LED reflectors, a parabolic surface was used as a reference plane, and a diffusion pattern was designed on the reference surface to meet the regulatory requirements for light distribution. The diffusion pattern can usually be a square fisheye pattern, a quadrilateral Patterns, horizontal or vertical stripes, hexagonal patterns, reticulated patterns, double or multiple patterns, the pattern designed by aluminum plating in the later stage has reflectivity, and the design of this reflective surface generally has steps to connect Adjacent to the reflective surface, the further design of the reflective surface uses a continuous curved surface without steps as the reference surface, and the above-mentioned diffusion pattern is designed on the reference surface, and this is used as the designed reflective surface, although better results can be obtained directly in front of the lamp. Lighting uniformity, but in the case of large-angle observation, the light is not continuous and uniform at the junction of the steps. Moreover, the reflective surface designed based on this is difficult to directly observe the reflective surface at large angles, often The viewing angle in the light distribution performance cannot be satisfied. Therefore, it is necessary to increase the light diffusion by adding texture on the side wall to meet the viewing angle requirements.

However, the increase of skin texture on the side wall will lead to an increase in the draft angle of the side wall. In the case of a very inclined shape of the entire lamp, the increase in the draft angle will directly reduce the size of the front reflector, resulting in the loss of light distribution energy, which needs to be replaced. The support of high-power LEDs can ensure compliance with regulations, and its cost will increase. In addition, the above-mentioned reflectors require large openings, and the light distribution pattern cannot be too deep in the vertical direction, otherwise it will cause poor aluminum plating and affect the light distribution requirements of the final product. In order to overcome If the aluminum plating is bad, the opening of the reflector must be enlarged and the pattern should be shallow, which seriously affects the aesthetic feeling of the lamps and lanterns. Therefore, it is particularly important to solve this kind of problem

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