NIGHT OBSERVATION DEVICE Russian patent published in 2002 - IPC

FIELD: night observation systems. SUBSTANCE: device includes objective, biplanar electron-optic converter of direct image, turnover system and ocular. Corrector in the form of concave-convex lens is placed between biplanar electron-optic converter and turnover system. Lens of ocular is arranged at distance (0.01-0.5) Fok, where Fok, focal distance of ocular from protective glass of screen of biplanar converter. Turnover system includes four components. Ocular includes three components. First component of turnover system is in the form of concave-convex collecting lens, its second component is in the form of convex-concave diverging lens, forth component is in the form of double-convex collecting lens. Third component of turnover system and first component of ocular are identical to first component of turnover system. Second component of ocular is identical to forth component of turnover system. Third component of ocular is identical to second component of turnover system but it is oriented in opposite direction. EFFECT: simplified optical circuit, reduced assortment of optical parts due to use of corrector and identical lens in ocular and in turnover system. 1 dwg, 1 tbl