Ultra-bright light engine for projection displays

Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface

Reexamination Certificate

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Details

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

Reexamination Certificate

active

07362506

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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