V. G. Volcov, Yu. A. Dobrovolsky, N. F. Koschavtsev, M. A. Kuskova, G. A. Leonova, T. G. Objedcova
Special Design Office of Night-Vision Devices of State Unitary Enterprise “RD&P Centre “Orion””, Moscow, Russia
Circuits of designing objectives with admit the availability of field of view in night-vision devices for realizing a search and detection mode and an acquisition mode correspondingly are discussed. Simple circuits of lens and mirror-lens objectives with a stepped changeable focal distance mainly without replacing optical components are offered.
