Investigation of two-lens achromat objectives as the basic elements of fast objectives of night-vision devices

摘要

Two-lens objectives made from combinations of different types of glasses are investigated. and a set of' basic two-lens objectives is obtained with relative aperture 1:3-1:2.5, achromatized for the spectral region 0.6-0.9 mu m. (c) 2009 Optical Society of America.