Optics: image projectors – Composite projected image – Multicolor picture
Patent
1997-01-08
1998-07-14
Dowling, William
Optics: image projectors
Composite projected image
Multicolor picture
353 84, G03B 2128
Patent
active
057793344
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. In another aspect of the invention a single white-light source is used, and the beam of white light is split by a prism system into separate color beams, which are redirected to impinge as parallel beams on a monochrome LCD array. The LCD array is switched by a controller driven in accordance with a video signal, and the emerging beams are recombined and focused on a surface to produce a dynamic color image.
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Boys Donald R.
Dowling William
Lextron Systems, Inc.
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