Projection type display device

Details Projection type display device Projection type display device

2005-09-06

2005-09-06

Nguyen, Judy (Department: 2851)

Optics: image projectors

Composite projected image

Multicolor picture

C353S032000, C353S102000, C349S095000, C349S007000

Reexamination Certificate

active

06939008

ABSTRACT:
A projection type display device includes: a light source for emitting light including multiple light components falling within different wavelength ranges; pixels for modulating the light independently; a first optical system, which receives the light from the light source and directs it toward the pixels; and a second optical system, which projects the light, modulated by the pixels, onto a projection plane. The first optical system includes an optical element for converging the light components onto mutually different ones of the pixels in accordance with their wavelength ranges. The pixels are arranged in a predetermined azimuth on a panel plane where the pixels are defined. The element has a first length in a first direction defined by the azimuth and a second length, greater than the first length, in a second direction substantially perpendicular to the first direction. The element converges the light components in the first and second directions.

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