Optical sighting system for a gun mounted on mobile platform

Ordnance – Mounts – Training mechanisms

Patent

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Details

89 3614, 359402, 359403, F41G 140

Patent

active

050605542

ABSTRACT:
A sighting system for arming a gun mounted on a self-propelled platform. The system comprising a periscope with a collimator having a source of monochromatic light and a swivelling mirror, and in association therewith an auxiliary sighting system so devised that a reticle or spot is projected from the collimator simultaneously into the lines of sight of the gunner and the commander. The auxiliary sighting system comprises a first dichroic mirror or beam splitter facing the head mirror and a second dichroic mirror or beam splitter vertically removed from the first one so as to be located in the commander's field of vision; and means for transmitting light between these two dichroic mirrors or beam splitters.

REFERENCES:
patent: 2492353 (1949-12-01), Brackett
patent: 3918813 (1975-11-01), Rossiter
patent: 4318330 (1982-03-01), Hausenblas
Walker, Periscope Optics and the High-Powered Laser, Optical Systems Engineering, vol. 193, 1979, pp. 116-120.

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