Ultra-bright light engine for projection displays

Details Ultra-bright light engine for projection displays Ultra-bright light engine for projection displays

2008-04-22

2008-04-22

Loha, Ben (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

C359S583000, C359S585000, C359S588000, C359S589000, C353S020000, C353S031000, C353S034000, C353S097000, C348S336000, C348S339000

Reexamination Certificate

active

11741700

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).

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