use: u0433u0435u043eu0434u0435u0437u0438u0447u0435u0441u043au043eu0435 instrument u0434u043bu00a0 navigation u043eu0431u0441u0435u0440u0432u0430u0446u0438u0438.the essence of the u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0: device contains the pipe with the visual object and u043eu043au0443u043bu00a0u0440u043eu043c, u0430u043bu0438u0434u0430u0434u0443, a mirror, a mirror and a node u0443u0434u0435u0440u0436u0430u043du0438 u00a0 building, constructed in the shape of u043du0430u0433u043eu043bu043eu0432 u043fu0440u0438u0441u043fu043eu0441u043eu0431u043bu0435u043du0438u00a0, with u0437u0440u0438u0442u0435u043bu044cu043du0430u00a0 pipe by u0434u0432u0443u043cu00a0 mirrors, one of which is located between the lens and u043eu043au0443u043bu00a0u0440u043eu043c angle 45 & deg; the optical axis of the lens.the second mirror and a partially transparent and located between the u043eu043au0443u043bu00a0u0440u043eu043c and exit pupil plane visual pipe angle 45 & deg; to the optical axis. u0443u043bu00a0u0440u0430 located at an angle of 90 & deg; the optical axis of the lens, with the possibility of rotation and fixation is made on the exit pupil is u0435u043bu044cu043du043eu0439 pipes. 2).
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