Using the Freeform Micro-lens Array to Construct the Optimum Optics Design of Multiple Chip LEDs

• Main Authors: Kuo-Yuan Tseng, 曾國源
• Other Authors: Neng-Chung Hu
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/624wrd

碩士 === 國立臺灣科技大學 === 電子工程系 === 99 === The main purpose of this thesis is to solve three major problems of Multiple chip LEDs . First problem is bigger view angle makes the low efficiency. Second problem is Lambertian light source effects the un-uniformity analysis surface. Third problem is the position of multiple chip LEDs cause by the mixed-color non-uniformity. We used the freeform mathmatical models to design the optics device for the collimator TIR lens and micro-lens-array diffuser. In the Multiple chip LEDs (six LEDs) we utilized the designed collimator TIR lens to collimate the LED lighting source then used the collimator light source to design the micro-lens-array diffuser. Finally the ray trace of Multiple chip LEDs light source through the collimator lens and micro-lens-array diffuser. The result showed the square micro-structure in different angle has the best result.