FIELD: optics.
SUBSTANCE: invention relates to optical technology, in particular to night vision device. Night vision device comprises first photosensitive microcircuit, first lens group (101), first display screen, image processing system, and control system for adjusting imaging range of the first photosensitive chip by adjusting optical zoom of the first lens group and / or digitally scaling image processing system. Night vision device further comprises auxiliary lighting module (103) that includes auxiliary light source and light guide cavity; auxiliary light source, at least, can emit infrared light; light beam emitted by auxiliary light source is emitted through light guide cavity; light guide cavity has movable control component for adjusting emission range of emitted light beam manually or by automatic control by control system; and radiation range is adjusted according to imaging range of the first photosensitive microcircuit. Light guiding cavity comprises light collecting portion (1033) and telescopic guide waveguide (1034) that communicate with each other.
EFFECT: technical result is improvement in night time visible range and quality of image formation without changing level of hardware.
12 cl, 7 dwg
