ADD: 72 North Ring Road, Jinshui District, Zhengzhou City, Henan Province, China.
Military optical instruments mainly refer to ordinary optical instruments in the visible band. They have the earliest military application and mature technology. They have the functions of enlarging and extending human vision, finding targets that are invisible or invisible to human eyes, locating targets and aiming at targets. Usually it can be divided into two categories: observation instrument and photogrammetric instrument. The former uses the human eye as the light information receiver, and the latter uses the sensitive film to record the scene information.