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US 5,632,545 AGranted
Enhanced video projection system
AssigneeLextron Systems, Inc.
InventorDan Kikinis
Life of this patent
Estimating the term…
Abstract
A color video projector system has separate light sources for producing separate beams of light which are passed each first through color filters to provide separate color beams before being processed by video-controlled light shutter matrices and then combined into a single beam projectable to provide a full-color video display with superimposed color spots rather then side-by-side color spots. In a preferred embodiment the color beams are red, green, and blue.
Claims3
A video projector system comprising:
- individual light sources, one each for each color to be projected, adapted to provide each a separate light beam;
- a lens system in the path of the separate light beams, adapted for focusing the beams;
- a number of individual color filters equal to the number of beams, in the colors to be projected, and placed one each in each beam path;
- a light-shutter matrix system comprising a number of equivalent switching matrices equal to the number of beams and placed one each in the beam paths;
- a video controller adapted for controlling the light-shutter matrices;
- and
- an optical combination system adapted for combining the several beams into a single composite beam for projection on a surface to provide a video display;
- wherein each beam passes through a color filter before being processed by a light-switching matrix.
5 more elements
Dependencies are inferred from the claim text.