| Summary: | 碩士 === 國立虎尾科技大學 === 光電與材料科技研究所 === 102 === In recent years, the rapid development of LED technology , because it has a fast response, long life cycle , low power consumption , small size, directional advantages, it is widely used in lighting and direction of the vehicle driving instructions , warning lights and other functions . Most of the lights are mostly taken direct light or lens mode design, and design application of light guiding the way light species, is limited by the brightness and uniform light effect can not be taking into account , it only applies to running lights design.
ECE (Economic Commission for Europe) specifications brake light brightness limit is 60cd, high brake lights is 25cd, the turn signal is 50cd, and running lights are only 4cd, so the way to the light guide to achieve brightness easier running lights , brake lights to achieve the brightness of the above it is difficult , in addition to the need to use high power LED , the need to achieve a good design specification standards.
The light guide is designed to evenly light the lamps emitting area in order to achieve uniform light-emitting surface of the visual effects, but it is often thus sacrificing the efficiency of light energy applied to the luminance only reach the desired brightness running lights , can not be applied to other functions .
This study focuses on how the application of high-power LED as the light source, the coupling structure to collect light centralized application through, and then use the geometrical optics reflection principle planning, cutting the optical path, and optical simulation software optical shape, light intensity and visual effects simulation to both comply with regulations promulgated by the rear fog lamp (Regulation No. 38) regulate the light intensity on the visual effects, while maintaining acceptable dodging eye effect, and finally made into a physical model for the physical distribution light verified.
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