Optics: image projectors – Reflector
Reexamination Certificate
2006-04-11
2006-04-11
Nguyen, Judy (Department: 2851)
Optics: image projectors
Reflector
C353S030000, C353S031000, C353S099000, C353S121000, C362S297000, C362S347000, C313S113000, C313S114000
Reexamination Certificate
active
07025464
ABSTRACT:
A projection display system has at least one light-recycling illumination system and at least one imaging light modulator. The light-recycling illumination system includes a light source that is enclosed within a light-recycling envelope. The light source is a light-emitting diode that emits light, an a fraction of that light will exit the light-recycling envelope through an aperture. The light-recycling envelope recycles a portion of the light emitted by the light source back to the light source in order to enhance the luminance of the light exiting the aperture. The fraction of the light that exits the aperture is partially collimated and is directed to the imaging light modulator. The imaging light modulator spatially modulates the partially collimated light to form an image.
REFERENCES:
patent: 5410454 (1995-04-01), Murase et al.
patent: 6144536 (2000-11-01), Zimmerman et al.
patent: 6185357 (2001-02-01), Zou et al.
patent: 6186649 (2001-02-01), Zou et al.
patent: 6318863 (2001-11-01), Tiao et al.
patent: 6356700 (2002-03-01), Strobl
patent: 6550942 (2003-04-01), Zou et al.
Beeson Karl W.
Zimmerman Scott M.
Goldeneye, Inc.
Koval Melissa J
Nguyen Judy
Propp, Esq. William
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