Projection type image display apparatus

Details Projection type image display apparatus Projection type image display apparatus

2006-03-20

2010-06-29

Epps, Georgia Y (Department: 2878)

Optics: image projectors

Reflector

Plural

C353S119000, C348S771000

Reexamination Certificate

active

07744226

ABSTRACT:
A projection type image display apparatus has: an illumination optical system generating illumination light; a projection optical system projecting an image light onto a screen; a digital micromirror device (DMD) modulating the illumination light so as to form the image light; and a reflection mirror arranged in a position opposite to an optical path of the illumination light entering the DMD. The reflection mirror reflects an off-light reflected by the DMD in an “OFF” state in a direction separated from a projection light reflected by the DMD in an “ON” state.

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