Patent ID: 8264770
Filing Date: 2012-09-11
Classification: F41G,F41H,G02B

Abstract:
1. A collimated periscope, said periscope comprising: a housing; an upper prism arranged within said housing; a lower prism arranged adjacent to said upper prism; a display prism arranged adjacent to said lower prism; a collimating optical assembly arranged adjacent to said display prism; a flat panel display arranged adjacent to said collimating optical assembly; an electronically switchable mirror arranged on a surface of said lower prism; and said collimating optical assembly comprises: a field lens arranged adjacent to said flat panel display; a lower beam splitter prism arranged adjacent to said field lens; a beam splitter arranged adjacent to said lower beam splitter; an upper beam splitter prism arranged adjacent to said beam splitter; a lens arranged adjacent to said upper beam splitter prism; a concave first surface mirror arranged adjacent to said lens; and a corrector prism arranged adjacent to said upper beam splitter prism and said display prism.