OPTICAL UNIT FOR optically coupled aiming mark surveillance system with a check mark on guns TANK

摘要

The invention relates to an optical instrument engineering, namely, to systems alignment sighting device for armored vehicles. The object of the utility model is to provide structural rigidity, and thus the stability and durability of the optical unit in operative control of the parallelism of the sighting axis of the sight and tank's gun barrel in field conditions. To solve this problem in an optical unit for optically coupling the sighting mark surveillance system with a check mark on the gun of the tank, comprising an optically coupled device changes direction of an optical axis and a focusing lens, unlike the prototype, in an optical axis direction changing device used tetrahedral optical prism, made so that the input and output facets are refractive and form an angle of 7 ° 32 'and the reflecting faces form an angle of 3 ° 46', wherein the prism mouth anovlena so that its front face is perpendicular to the focusing lens optical axis and is rotatable about this axis.; 1 Fig.