Transactions of Materials and Heat Treatment

Title：Comparative research of influence for injeciton and injeciton compression molding process on surface deviation and optical distortion for precision lens

Authors： Zhou Xiaowei Li Maoyuan Zhang Yun Zhou Huamin

Unit：

KeyWords：

ClassificationCode：TQ320.66

year,vol(issue):pagenumber：2021,46(9):230-236

Abstract：

In order to improve the optical performance of precision polymer lens modules, for a large diameter aspheric lens, the difference of lens surface deviation between injection and injection compression molding process was analyzed, and the influence laws of lens surface deviation on the optical distortion for lens module was investigated by the lens module imaging calculation. The results show that the injection molding process factors cause the lens surface deviation and uneven distribution, and the injection compression molding process effectively deduces the lens surface deviation. Meanwhile, the surface deviation of a single lens is not completely positively correlated with the optical distortion performance of lens module, and the grid distortion and TV distortion of lens module decrease with the reduction of lens surface deviation. However, the optical functions and surface characteristics of each lens in the lens module are coupled with each other, which only reduces the lens surface deviation, but cannot improve the overall imaging performance of the lens module. Thus, it is necessary to comprehensively consider the function, performance index requirements and surface characteristics of each lens in the module and establish the evaluation standard of the lens surface deviation associated with the specific imaging index.

Funds：

国家自然科学基金重点项目(51635006)

周晓伟（1995-），男，博士研究生 E-mail：xwzhou@hust.edu.cn 通信作者：张云（1981-），男，博士，教授 E-mail：marblezy@hust.edu.cn

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