Patent ID: 6318868
Filing Date: 2001-11-20
Classification: G02B

Abstract:
A virtual display system comprising:a) a spherical mirror;b) a first beam splitter disposed on the concave side of said mirror;c) a first end plate positioned beyond said first beam splitter, said first end plate having a broad band anti reflection coating disposed on the side of said first end plate facing said first beam splitter;d) a quarter wave plate positioned beyond said first end plate;e) a polarizer positioned beyond said quarter wave plate, said polarizer being vertically polarized;f) a second end plate positioned beyond said polarizer, said second end plate having a broad band anti reflection coating disposed on the side of said second end plate facing away from said polarizer; andg) a second beam splitting plane mirror providing for separate inputs of an object and a backdrop for said object, said object and said backdrop having a variable distance from said virtual display system thereby varying the size and position of the images produces by said virtual display system.