Light guide structure of automobile gear panel

Abstract

The invention discloses a light guide structure of a car gear panel. The light guide structure comprises an LED light source, a light guide part and a gear character surface cover, wherein different characters on the gear character surface cover correspond to different LED light sources; the light rays of the different LED light sources are transmitted to the gear character surface cover through the light guide part; an arc structure is formed between the light incidence end and the light reflection end of the light guide part; a reflection curve surface is formed in the light guide part through the arc structure. The light guide structure has the benefits as follows: the problems of brightness loss and poor uniformity can be solved by designing the light guide part on the light source; on one hand, the light rays come into the incident surface of the light guide part and are refracted and transmitted in the light guide part by light refraction and reflection principles, so that a great amount of originally lost light rays can be collected and utilized and the purpose of brightness improvement can be achieved; on the other hand, the reflection curve surface of the light guide part is designed by the light reflection principle, so that the light rays transmitted in the light guide part are continuously reflected and a light emergence surface with uniform brightness is finally presented.

Description

technical field [0001] The invention relates to an automobile gear panel, in particular to a light guide structure of an automobile gear panel which can satisfy high brightness, uniform brightness and large lighting area. Background technique [0002] At present, the light guide structure of the car gear panel is to light up the characters with the direct light source. When the light source is directly irradiated, the light angle is often larger than the light transmission area, and the light source loss area is formed on both sides of the light transmission area, resulting in light on the gear characters. The brightness of the light source is not high, and the car gear position is difficult to be displayed under the condition of strong external light; Next to the decreasing question. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned technical problems, and provide a light guide structure for a car gear panel that can m...

AI Technical Summary

Problems solved by technology

[0002] At present, the light guide structure of the car gear panel is to light up the characters by direct light source. When the light source is directly irradiated, the light angle is often larger than the light transmission area, and the light source loss area is formed on both sides of the light transmission area, resulting in light on the gear characters. The brightness of the light source is not high, and the car gear position is difficult to be displayed under the condition of strong external light; next to decreasing question

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