OPTICAL SYSTEM FORMING INVERTED IMAGE Russian patent published in 1998 - IPC

FIELD: observation telescopic instruments. SUBSTANCE: optical system forming inverted image has spherical mirror and prism with front spherical surface and rear flat mirror lying opposite to its spherical surface. Image plane is situated on other side of optical axis of system forming inverted image. In this case spherical mirror and spherical surface of prism have common curvature center located on optical axis of system and on flat mirror surface of prism. EFFECT: enhanced functional efficiency of optical system. 1 dwg