Abstract
Precision glass molding (PGM) can fabricate aspherical lens and irregular optical products in a single step, but its applicability is currently limited by the thermally induced residual stresses and lens shape derivation after molding. To remove this barrier, this paper develops a numerical optimization platform for PGM based on a simplex algorithm and finite element simulation. It was found that the platform can effectively reduce the residual stress in a molded lens through cooling process optimization and minimize the lens shape derivation by die shape compensation. The platform established can improve the lens quality by PMG and make molded lenses have better quality than those manufactured by ultraprecision machining processes.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
Weidong Liu and Liangchi Zhang
Appl. Opt. 54(22) 6841-6849 (2015)
Hang Fu, Changxi Xue, Yue Liu, Bo Cao, Changfu Lang, and Chao Yang
Appl. Opt. 61(5) 1194-1202 (2022)
Yue Liu, Changxi Xue, Gaofei Sun, and Guoyv Zhang
Opt. Express 31(19) 31158-31176 (2023)