Using Stepped Structure to Design the Optical Coupler for Natural Light Guiding System

• Main Authors: Po-Hsuan Pan, 潘柏軒
• Other Authors: Jong -Woei Whang
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/78987635109774396257

碩士 === 國立臺灣科技大學 === 電子工程系 === 98 === For saving energy and healthy lighting, many researches focus on the sunlight illumination system. A Natural Light Guiding System can be separated into collecting, transmission, and lighting parts. With a cascadable concentrator in the collecting part, the transmission part will use large number of lightpipe. It means the most of cost is on the transmission part. The role of the optical coupler has become more and more important for Nature light guiding system. With the useful design, one can get the better efficiency. The purpose of this paper is to report the research of optical coupler. We present a concept that combines stepped structure with light pipe. In this paper, we utilize the stepped structure optical coupler. It was found that the stepped structure can maintain the output angle successfully. In conclusion, the features of stepped structure optical coupler make the coupler system easier to couple and maintain the output angle.