Hu Yuwang, Wang Longfei, Xue Changxi
Opt Express. 2024 Oct 7;32(21):37716-37731. doi: 10.1364/OE.537891.
Precision injection molding technology (PIM) is the primary technique used for large scale manufacture of plastic optical lenses. However, the injection molding of plastic optical lenses results in a problem of residual stress, which affects the imaging quality of the optical system. The conventional injection molding process uses an orthogonal approach for adjusting the process parameters, requiring a large number of experiments. Therefore, this article proposes an improved residual stress model for precision injection molding of plastic optical lenses based on the solidification layer theory. The residual stress of precision injection molded aspherical plastic optical lens used for imaging optical systems was analyzed through simulation and experimentation. The results demonstrate that the proposed method achieves residual stress prediction for plastic optical lenses after injection molding.
精密注塑成型技术（PIM）是大规模制造塑料光学透镜的主要技术。然而，塑料光学透镜的注塑成型会产生残余应力问题，这会影响光学系统的成像质量。传统的注塑成型工艺采用正交方法来调整工艺参数，需要进行大量实验。因此，本文基于凝固层理论提出了一种改进的塑料光学透镜精密注塑成型残余应力模型。通过模拟和实验分析了用于成像光学系统的精密注塑成型非球面塑料光学透镜的残余应力。结果表明，所提出的方法实现了注塑成型后塑料光学透镜残余应力的预测。
