Projection color display apparatus

Details Projection color display apparatus Projection color display apparatus

1991-01-25

1992-08-04

Cuchlinski, Jr., William A.

Optics: image projectors

Composite projected image

Multicolor picture

353 33, 353 34, 353 94, 353 81, 353 20, 359 48, 358253, G03B 2128

Patent

active

051353008

ABSTRACT:
Three light fluxes are modulated by corresponding light valves so as to project a color image on a screen. An interference filter for selectively transmitting a light flux which is emitted in a direction perpendicular to a light emitting surface of the interference filter is disposed on the light-emitting portion so as to increase the intensity of light fluxes which are emitted in the forward direction. A light-flux-emitting portion of a light source and the light valve have approximately the same configuration so that the intensity of the light fluxes to be projected on the light valves is increased.

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