Image display apparatus

Details Image display apparatus Image display apparatus

2007-05-08

2007-05-08

Perkey, W. B. (Department: 2851)

Optics: image projectors

Polarizer or interference filter

C353S037000, C353S084000, C353S099000, C353S102000, C349S009000, C359S483010, C359S623000, C348S759000, C362S341000

Reexamination Certificate

active

10536513

ABSTRACT:
According to the present invention, there is provided an image display device including a non-luminous reflection type spatial light modulating element, illuminating system to illuminate the reflection type spatial light modulating element and a projection lens and in which light from a light source (2) illuminates the reflection type spatial light modulating elements (14, 15) via first and second fly-eye integrators (9, 10). An unnecessary part, not modulated, of the light reflected by the reflection spatial light modulating elements (14, 15) and further by a reflector (4) for recycling. Since the fly-eye integrators (9, 10) are displaced in relation to their optical axes, it is possible to utilize the light with an improved efficiency and prevent any nonuniform illumination from taking place.

REFERENCES:
patent: 5777695 (1998-07-01), Yamagishi
patent: 6631039 (2003-10-01), Fujimori et al.
patent: 6910772 (2005-06-01), Yano
patent: 2002/0085179 (2002-07-01), Lee
patent: 2002-331837 (2002-05-01), None
patent: 2002-328430 (2002-11-01), None

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