Optics: image projectors – Composite projected image – Multicolor picture
Patent
1994-07-25
1996-05-14
Dowling, William C.
Optics: image projectors
Composite projected image
Multicolor picture
348771, 353 37, G03B 2128
Patent
active
055172636
ABSTRACT:
An image projection system includes a bright light source of polarized light, and in one form of the invention, a spatial light modulator, having an alignment layer, to modulate the polarized projection light, wherein the bright polarized light source is aligned with the alignment layer to permit the polarized light to pass therethrough without the need for unwanted light blocking polarizers. The spatial light modulator generates output light representative of the image, which is projected by a projection lens system onto a remote viewing surface to form a bright image thereon. In another form of the invention, three different colored images are each produced by three separate polarized light sources illuminating three individual light valves, and are superimposed to produce a full color image while all three light sources are maintained fully activated to provide a brightly illuminated image.
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Minich Arthur P.
Shapiro Leonid
Dowling William C.
Kleinke Bernard L.
Potts Jerry R.
Proxima Corporation
Scott Peter P.
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