Patent ID: 6899429

Claim:
An optical process unit comprising: a filtering means that discriminates a colored light which has a predetermined wavelength range from a white light and filtrates said colored light off said white light, a polarizing means that selects a certain polarized light component from said colored light so that light component of said colored light is compliant to a linearly polarizing direction of said polarizing means and passes said linearly polarized light therethrough, a resolution means that resolves said colored light passing through said polarizing means at a predetermined wave length into a first light beam and a second light beam, a first orientating means that changes direction of said first light beam to a first reflective display device and passes a reflected light of said first light beam at said first reflective display device, a first image information superimposing means that superimposes an image information onto said first reflected light of said first light beam at said first reflective display device, which rotates polarization of said first light beam by 90 degrees from said first light beam, so that a first image light beam is generated by reflection thereat, a second orientating means that changes direction of said second light beam to a second reflective display device and passes a reflected light of said second light beam at said second reflective display device, a second image information superimposing means that superimposes an image information onto said second reflected light of said second light beam at said second reflective display device, which rotates polarization of said second light beam by 90 degrees from said second light beam, so that a second image light beam is generated by reflection thereat, an image light composing means that composes said first image light and said second image light into a single image light, and said first orientating means, said second orientating means, said first reflective display device, said second reflective display device and said image light composing means are arranged in an alignment such that said first image light and said second image light are collimated to be composed into said single image light.