Abstract

The imaging quality of the optical system can be affected by the stray light, so people want to know the stray light suppression level requirements of the optical system. Usually, the stray light suppression level requirements of the optical system is represented by the PST or the coefficient of stray light level. Although, in china, the GB show us the requirement of 3%~5%[1], the standard of the GB can not directly guide the designer to design for that we can not know how large the PST of the optical can decrease the imaging quality of the optical system. So the paper will analyse the the influence of the PST on the imaging quality of the optical system in test range. The imaging quality of the optical system can be shown by MTF directly, so the paper will find the relationship between the PST and MTF in test range.

© 2012 Optical Society of America