Study on Tolerance Sensitivity and Injection Molding Analysis of LEDLens

• Main Authors: Yu-Hsiang Lai, 賴宇祥
• Other Authors: Min-Wen Wang
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/38004952947131814716

碩士 === 國立高雄應用科技大學 === 機械與精密工程研究所 === 101 === Over the last few years, optical lenses were made through plastic molding and tended to high accuracy. Simulation software, such as Trace Pro, Code V, and ASAP, was mainly used in optical analysis of lens, the software performs optical analysis with lens model and design the best lens size with the optical principles. The lens design and analysis process is the most important basis for developing more sophisticated the lens size. This study focused on the design of LED lens size parameter. A method was developed to find the best combination of size parameters with tolerance analysis and calculate the sensitivity,the TracePro optical analysis software was used to perform emitting angle and uniformity analysis.Then, the best combined size parameters were adopted to develop machining tolerances. The appropriate LED lens can be manufactured with the tolerances of the best sized parameters. This study further used a mold flow analysis software, Moldflow 4.1 to perform analysis and the Taguchi method to approach the best size parameters. Finally, optical analysis was performed to verify the optical quality of LED lens with the size parameters and understand the filling process.