Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Reexamination Certificate
2006-02-07
2006-02-07
Mack, Ricky (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
C349S009000, C353S034000
Reexamination Certificate
active
06995917
ABSTRACT:
A projection display system using polarized light comprises a light source for generating a light beam having at least two light components, wherein the light components are polarized and at least one of the light components is polarized differently than another of the light components. The projection display system has a projection system having a plurality of polarized light modulators, each modulator generating a light-component-specific image associated with one of the light components. The projection display system also has a projection lens for projecting an image combined from the light-component-specific images from the modulators. The present invention also provides a polarization converter for use with a light source that generates a light beam having at least two light components. The polarization converter comprises an optics array capable of separating the light beam into at least one light component having a polarization that is different than another light component.
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EPO Patent Abstracts of Japan, Publication No. 08304739; publication date Nov. 22, 1996; Application No. 080304127; Application Date Feb. 21, 1996. Seiko Epson Corp. Applicant; Komeno Kunio, Inventor, Title: Polarized Light Illuminator and Projection Type Display Device.
Florence James M.
Sampsell Jeffrey B.
Chernoff Vilhauer & McClung & Stenzel
Mack Ricky
Sharp Laboratories of America Inc.
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