A light transmission device for automobile lamp and automobile lamp

Abstract

The invention relates to a light conducting device for a vehicle lamp and the vehicle lamp. The light conducting device comprises a light conducting part, a light source component, a fixing support and a rotating-in type elastic pressing mechanism. The light source component is arranged at the end of the light conducting part. The fixing support is used for fixing the light source component and the light conducting part. A mounting hole matched with the rotating-in type elastic pressing mechanism is formed in the fixing support. One end of the rotating-in type elastic pressing mechanism penetrates through the mounting hole and is fixedly mounted with the light conducting part. The other end of the rotating-in type elastic pressing mechanism and the light source component are fixedly mounted. An elastic piece is arranged on the outer side of the other end of the rotating-in type elastic pressing mechanism. The rotating-in type elastic pressing mechanism and the fixing support are fixed through the elastic piece. The light source component and the fixing support are fixedly arranged. Through elastic force of the elastic piece, the rotating-in type elastic pressing mechanism and the mounting face of the light source component are tightly pressed. The problems that according to an existing mounting mode, the distance between a light conducting end face and a light source cannot be accurately controlled, the positions of the light conducting end face and the light source cannot be accurately controlled, and light conducting light emitting effect is poor are solved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a light transmission device for automobile lamps and the automobile lamps. Background technique [0002] The light guide in the car lamp is generally a plastic solid round tube with a diameter of about 8mm, and there are also light guides with other cross-sectional shapes, such as square. A light source is provided at the end of the light guide, and the light emitted by the light source enters the interior of the light guide from the end of the light guide and propagates inside the light guide through total reflection. Since the distance and position between the light source and the end face of the light guide directly affect how much light emitted by the light source enters the light guide, it is necessary to precisely control the distance between the light source and the end face of the light guide to ensure that the light guide has a stable luminous effect. [0003] The t...

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Problems solved by technology

[0009] The object of the present invention is to provide a light transmission device for automobile lamps and automobile lamps. The present invention is provided with a screw-in elastic pressing mechanism, which can precisely control the distance between the light source and the end surface of the light guide to solve the problem of Due to the poor positioning of the light guide in the existing installation method, there is a deviation in the distance between the end face of the light guide and the light source, which affects the lighting effect of the car lights

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