LED準遠場之研究與其在燈具之應用The; research of LED's quasi far-field distance and it's application in designing lamps

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/6963

Title:	LED準遠場之研究與其在燈具之應用The;research of LED's quasi far-field distance and it's application in designing lamps
Authors:	蔡昌宇;Chang-yu Tsai
Contributors:	光電科學研究所
Keywords:	準遠場;燈具;LED;quasi far-field
Date:	2007-07-10
Issue Date:	2009-09-22 10:33:22 (UTC+8)
Publisher:	國立中央大學圖書館
Abstract:	本論文主要目的在研究LED光源之中場傳遞行為，了解其強度在不同傳輸距離時之變化情形進而定義其準遠場距離，並利用中場擬合法建立出精確LED光學模型，依據此精確光學模型來設計符合歐洲ECE法規的自行車後警示燈，並將自行車後警示燈與反射片做結合，設計出被動與主動安全兼具之車後燈組，以提升自行車在夜晚行進時之安全。The main purpose of this thesis is to study the mid-field behavior of LED. Considering the changes of LED’s intensity distribution in different distances and defining a quasi far-field distance. And use the accurate LED model which is built with “Cross correlation in the mid-field region” principle to design a bicycle tail lamp combined with reflector to conform to ECE regulation. The design is supposed to provide both active and passive safeties.
Appears in Collections:	[Graduate Institute of Optics and Photonics] Electronic Thesis & Dissertation

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