Light-emitting structure of automobile lamp thin-wall condenser

Abstract

The invention relates to a light-emitting structure of an automobile lamp thin-wall condenser. The light-emitting structure comprises an LED circuit board, LED particles and a corner thin-wall condenser, wherein the inner end of the corner thin-wall condenser is provided with a Fresnel pattern used for generating parallel light; a total reflection tapered plane is arranged at a corner part; the surface of the outer end of the corner thin-wall condenser is provided with a pattern capable of diffusing light; and the LED particles are fixed to the LED circuit board and correspond to the inner end of the corner thin-wall condenser in position. According to the light-emitting structure, a more uniform lighting effect can be achieved, the problems of LED granular sensation and lighting dark regions caused by traditional design are solved, the problem that a circuit board of a traditional direct condenser is visible can be effectively solved, and energy utilization rate is relatively high.

Description

technical field [0001] The invention relates to a light-emitting structure of a thick-walled concentrator of a car lamp, belonging to the technical field of concentrators of a car lamp. Background technique [0002] After the use of LED as the light source of car lights has become more and more popular, in addition to meeting the basic regulatory performance, more and more car lights have begun to pursue a more novel appearance, and the realization of lamp functions has become more and more diverse. Thick-wall concentrator is a commonly used way of realization. At present, the existing thick-walled concentrators have the following two conventional lighting forms: [0003] 1. Using LED light source and thick-walled concentrator to directly illuminate: [0004] Such as figure 1 As shown, the light emitted by the LED light source 1 is re-gathered through the Fresnel pattern on the back of the concentrator 2 to form parallel rays inside the concentrator, and finally diffuses ...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the light-emitting structure of the existing car light thick-walled concentrator may cause obvious LED grainy appearance, uneven lighting effect, and if the depth of the concentrator is shallow, it will cause rear The appearance of the circuit board is visible; or the overall energy utilization rate is low, and the top of the concentrator will form a dark area because the light cannot cover it, and the positioning accuracy of the LED is high.

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