Optical structure and method for shortening RGB light mixing distance

Abstract

The invention discloses an optical structure and method for shortening the RGB light mixing distance. The optical structure comprises a PCB; a plurality of RGB light sources which are arranged on oneside of the PCB at intervals; a light guide plate which is arranged on one side of the PCB; a light guide plate which includes a plurality of light sources which are distributed at intervals and correspond to the plurality of RGB light sources respectively, wherein each light guide strip is in a long strip shape, the end face, opposite to the RGB light source, of each light guide strip forms a light inlet face, the side face of each light guide strip forms a side reflection face, and light emitted by each RGB light source passes through the corresponding light inlet face and then is reflectedby the side reflection face multiple times to reduce the reflection angle of the light; and a light mixing part, wherein one end of the light mixing part is connected with the other ends of the plurality of light guide strips, and the light mixed by the plurality of light guide strips enters the light mixing part for secondary light mixing. According to the optical structure capable of shorteningthe RGB light mixing distance, light entering the light incoming surface is reflected multiple times through the light guide plate and then mixed, the RGB light mixing distance can be shortened, and the optical structure has the advantages of being simple in structure, convenient to use and the like.

Description

technical field [0001] The invention belongs to the technical field of automotive lamp design, and in particular relates to an optical structure for shortening the RGB light mixing distance and a method for shortening the RGB light mixing distance. Background technique [0002] At present, with the development of the automotive lighting industry, customers' demand for personalized automotive interior atmosphere lights is gradually increasing, and the application demand for RGB full-color interior atmosphere lights is also gradually increasing. For automotive interior ambient lighting, the requirements for consistency of brightness, color and overall uniformity are high. Therefore, controlling the consistency of light color is the focus of ambient light design. The existing ambient light guides will reserve a certain distance for the light-incoming part to mix the light when designing. Fully mixed, the light and color effect presented is uniform and uniform without variegati...

AI Technical Summary

Problems solved by technology

However, since the size of most ambient lights is limited by the A surface of the car body, the distance that can be reserved for light mixing is often very limited. If the light mixing distance is too short, RGB color mixing will be insufficient, and the light emitting surface will have variegated colors and other defects.

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