Illumination optical system having a mirror with a curved...

Details Illumination optical system having a mirror with a curved... Illumination optical system having a mirror with a curved...

2005-03-22

2005-03-22

Yenke, Brian P. (Department: 2614)

Television

Video display

Projection device

C348S757000, C348S781000, C348S782000, C353S037000, C353S098000, C359S629000

Reexamination Certificate

active

06870580

ABSTRACT:
A projection type image display apparatus comprises a light source unit; an integrator unit for mixing luminous fluxes emitted from the light source unit so as to homogenize their light quantity distribution; a curved mirror for bending the optical path of luminous fluxes, which are turned into uniform light by the integrator unit, toward a projection unit; and the projection unit for causing the luminous fluxes to carry image information and projecting these luminous fluxes onto a screen.

REFERENCES:
patent: 4247769 (1981-01-01), Warner
patent: 5435724 (1995-07-01), Goodman et al.
patent: RE38225 (2003-08-01), Itoh et al.
patent: 20010043312 (2001-11-01), Fuse et al.
patent: 20030010990 (2003-01-01), Misawa et al.

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