Light distribution device for automobile signal lamp

Abstract

The invention relates to the technical field of automobile lighting arrangement structure, in particular to a light distribution device for automobile signal lamps. It includes an LED light source and a reflector, and is characterized in that: it also includes a thick-walled light guide; the thick-walled light guide is a transparent block structure that can transmit light; the LED light source is located on the side of the thick-walled light guide away from the signal lamp shade; the reflector Located above the thick-walled light guide to reflect light refracted from the upper surface of the thick-walled light guide to the lampshade of the signal lamp; the upper surface of the thick-walled light guide is provided with a light distribution structure that changes the refraction of light on the upper surface of the thick-walled light guide. The structure of the light distribution device of the present invention is extremely simple, through the two kinds of transmission of light, it can present two patterns with very obvious contrast, so that observers can clearly understand the information expressed by the signal light, and greatly strengthen the indication effect of the signal light. It has great promotion value.

Description

technical field [0001] The invention relates to the technical field of automobile lighting arrangement structure, in particular to a light distribution device for automobile signal lamps. Background technique [0002] With the development of the automotive lighting industry, car manufacturers pay more and more attention to the luminous expression when the luminaire is lit. While expressing the luminous form, they also pay more and more attention to the concealment of the light source of the luminaire, which is used to reflect a stronger luminaire design. Beauty and technology. The light distribution scheme of signal lights usually adopts the following schemes: one is to use LED light sources to be arranged on the side of the reflector, and the light is directly reflected by the reflector; ; The third is to adopt the LED light source to arrange the focal point of the concentrator at the rear or upper part of the thick-walled light guide, and the light is exported through the...

AI Technical Summary

Problems solved by technology

There are some problems in the above three situations. Either the light transmission of the LED light source is directly exposed to the observer, and the formed bright stripes are relatively simple in form, which cannot play a good signal indication role, or due to the relatively simple light transmission mode, forming The light mode of the final signal light is single, and it can only be indicated by the change of light and dark. Such signal light has poor indication effect and the pattern change is relatively simple.

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