OPTICAL DEVICE FOR NIGHT/DAY OBSERVATION AND SIGHTING Russian patent published in 2002 - IPC

FIELD: optical instrumentation. SUBSTANCE: optical device can be used for visual observation of remote objects, for determination of range to them with use of laser range finder, for sighting under night and day conditions. Optical device for night/day observation and sighting comprises head swinging mirror, night and day channels having common head objective. Night channel incorporates optical filter and electron- optical converter, day channel includes optical inversion system, mirror placed on optical axis of head lens and making up mirror head together with head swinging mirror placed on axis perpendicular to axis of head lens. Mirror head is mounted for turn around optical axis of head lens in which capacity lens with remote entrance pupil positioned on surface of additional mirror is employed. In addition device is inserted with channel of laser range finder that incorporates transmission path including laser radiator optically coupled to mirror head and reception path including receiving lens, prism unit with spectrum dividing coat, matching lens and photodetector. Prism unit with spectrum dividing coat is placed on axis of head lens which functions as receiving lens. Night channel is supplemented with rotary changing-over mirror located behind prism unit with spectrum dividing coat. Day channel is inserted with separable inversion system. Each inversion system comes in the form of lens with remote entrance pupil. Day channel is also provided with aperture diaphragm placed in front of inversion system and used by both separable lenses. EFFECT: possibility of circular observation without turn of entire device and of determination of range to observed object with raised accuracy. 1 dwg