A Study of the Manufacturing Tolerance on the Opto-mechanical Module

• Main Authors: Tseng Yi Yen, 曾義嚴
• Other Authors: Lin Tsung Yin
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/14723912345707700464

碩士 === 國防大學中正理工學院 === 兵器系統工程研究所 === 96 === In the traditional camera lens system, opto-mechanical design plays an important role in the development of optical systems, particularly for the interface between optics and mechanics. The manufacturing tolerance and the assembly tolerance, such as the element tilt, decenter and despace stack-up within a cell, usually appear in the opto-mechanical system. They will cause the camera lens system having the optical aberration to reduce the system’s optical quality. Therefore, the research in the opto-mechanical tolerance has become a critical factor in the opto-mechanical design in order to improve the lens system quality and reduce the system design cost. This study used the CATIA-3D software to develop an opto-mechanical tolerance model, and defined the opto-mechanical tolerance model with geometry relevant position and tolerance size. Then the analysis program was written by Matlab software to combine the coordinate transformation and Monte Carlo method. Therefore, the tolerance optimization disposition of the critical to quality (CTQ) parameters can be obtained. The element tilt, decenter and despace stack-up within a cell in the opto-mechanical tolerance model can also be realized from the simulation result of the Matlab program.