Study of LED Headlamp Using Reflector or Lens

• Main Authors: Chung-Hao Tseng, 曾仲豪
• Other Authors: Tsung-Hsun Yang
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/4b57zn

碩士 === 國立中央大學 === 光電科學與工程學系 === 106 === This thesis is study the characteristics of the two secondary optical designs developed in the past, which include a reflection cup and a refraction lens. We propose a way by use linear & shift-invariant system concept, combined with correlation and convolution operation to perform the optical simulation of light pattern superposition, and study if the linear & shift-invariant concept is applicable. We divide the light source into multiple segments to check linear & shift-invariant property. The simulation result of the light pattern is compared with that by the Lambertain light source. According to the simulated results, the NCC value is higher than 95 % and the relative deviation of maximum illuminance value is around 6.45 %. Therefore, the proposed method is potentially helpful to optical design for a complicated illumination system.