DISTORTION TUNING OF A QUASI-TELECENTRIC IMAGING LENS

摘要

The application relates to the correction of distortion in a telecentric imaging system by shifting the object plane along the optical axis. The goal is to correct distortion errors caused by environmental influences like changes in temperature or pressure. The design of the imaging system remains sufficiently telecentric so that changes in working distance do not significantly alter magnification. Distortions accompanying magnification corrections can also be corrected.