Microdisplay projection

Details Microdisplay projection Microdisplay projection

2007-07-10

2007-07-10

Dowling, William C. (Department: 2851)

Optics: image projectors

Stereoscopic

Polarizer

C353S020000, C349S015000, C349S009000, C359S465000

Reexamination Certificate

active

11002613

ABSTRACT:
Methods and apparatus for forming two orthogonally polarized beams of light from an unpolarized beam of light using one of at least two different image modes, the forming includes a color filtering process that is based on the image mode being used, and projecting the two orthogonally polarized beams to form an image on a viewing surface. Methods and apparatus for separating an unpolarized light beam into four beams as a function of wavelength and polarization; selectively modulating the four beams respectively using four light valves; and combining the four modulated beams to generate two orthogonally polarized light beams.

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