Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Reexamination Certificate
2007-06-12
2007-06-12
Ben, Loha (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
C359S618000, C359S580000, C359S583000, C359S586000, C359S587000, C353S020000, C353S031000
Reexamination Certificate
active
11115311
ABSTRACT:
A projector incorporating a prism and a plurality of light valves for modulating light that passes though the prism, wherein the color splitting-converging prism includes a dichroic coating having multiple layers of high and low index of refraction and ¼ wavelength thickness at each desired angle of incidence for reducing dichroic shift and thereby minimizing light loss.
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PCT International Search Report mailed Aug. 10, 2006, in PCT International Application No. PCT/CA2006/00686 (3 pages).
Ben Loha
Christie Digital Systems Inc.
Staas & Halsey , LLP
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