Patent ID: 7369317

Claim:
Display apparatus through which a viewer sees an object in front of the apparatus. said apparatus comprising: an optical device for separating an incoming light from the object into a plurality of polarized beams, one of said beams reaching the viewer's eye; an image detector for capturing another of said polarized beams and converting said received beam into an electrical signal; a liquid crystal on silicon (LCOS) panel with a color filter attached to the liquid crystal on silicon (LCOS) panel for receiving the electrical signal and projecting into the viewer's eye a virtual image based on the electric signal; a light source; and a polarizer for polarizing light emitted from the light source, wherein said optical comprises a first beam splitting device, which separates the incoming light into a parallel polarized light reaching the viewer's eye, and a perpendicular polarized light, wherein said optical device further comprises a second beam splitting device, which receives and reflects the perpendicular polarized light from the first beam splitting device to said image detector, and wherein said polarized light is reflected by the second beam splitting device and is directed onto the liquid crystal on silicon (LCOS) panel.