[[alternative]]Optical Design for LED Automobile High-Beams

碩士電機工程學系[[abstract]]發光二極體（Light Emitting Diode；LED）除具有耗電量少之省能特性外，更重要的是其體積輕薄短小且演色性與可調變性高，使車燈的設計具備多方位的新穎性，因此LED頭燈的開發被視為極具潛力研究之議題。本論文主要探討LED的光學特性與應用，包括光學模型建立、光學特性模擬與量測，以掌握其光輻射分佈，並設計一個高效率與高亮度之LED汽車遠光燈光學反射面。最後根據所建立的汽車遠光燈光學反射面加工成鋁模雛形，並實際運用光學配光儀器量測出實際數據，以驗證並比對模擬設計之結果，而運用於未來LED整車頭燈之遠光燈模組。[[abstract]]Besides the characteristic of lacking power consumption and energy saving, LED (Light Emitting Diode; LED) owns the most important properties of small volume, light weight, thin and short size, high color rendering, and adjustable feature to make the design of car light versatile and novel. Thus the development of LED headlight is considered as a potential topic of study. This paper mainly investigates the optics of LED and its applications, including the building, the simulation, and the measurement of its optic model, so as to gain the light intensity distribution of LED. Then according to its optic characteristics, a highly efficient and highly brilliant reflecting surface for LED automobile high beam is designed, and its prototype is manufactured with aluminum. Also, its practical data are verified by using an optic-pattern measurement apparatus, and the simulation results of the design are then compared so that it can be used as a high-beam module of the whole LED car headlight in the future