Optics: image projectors – Polarizer or interference filter
Reexamination Certificate
2011-07-05
2011-07-05
Epps, Georgia Y (Department: 2878)
Optics: image projectors
Polarizer or interference filter
C353S031000, C353S099000, C353S077000, C353S078000, C353S084000, C353S098000, C353S122000, C359S232000, C359S558000, C359S559000, C359S560000, C359S561000, C359S562000, C359S563000, C359S564000, C359S565000, C359S566000, C359S567000, C359S568000, C359S569000, C359S570000, C359S571000, C359S572000, C359S573000, C359S574000, C359S575000, C359S576000, C359S577000, C359S578000, C359S579000, C359S580000, C359S581000, C359S582000, C359S583000, C359S584000, C359S585000, C359S586000, C359S587000, C359S588000, C359S
Reexamination Certificate
active
07972004
ABSTRACT:
A system and method for uniform light generation in projection display systems. An illumination source comprises a light source to produce colored light, and a scrolling optics unit optically coupled to the light source, the scrolling optics unit configured to create lines of colored light from the colored light, and to scroll the lines of colored light along a direction orthogonal to a light path of the illumination source. The scrolling optics unit comprises a single light shaping diffuser to transform the colored light into the lines of colored light, an optical filter positioned in the light path after the light shaping diffuser, and a scrolling optics element positioned in the light path after the optical filter. The single light shaping diffuser is capable of simultaneously transforming colored light into lines of colored light having substantially uniform intensity to provide uniform illumination.
REFERENCES:
patent: 5845981 (1998-12-01), Bradley
patent: 5990983 (1999-11-01), Hargis et al.
patent: 6175440 (2001-01-01), Conemac
patent: 6351324 (2002-02-01), Flint
patent: 6540362 (2003-04-01), Janssen
patent: 6577429 (2003-06-01), Kurtz et al.
patent: 6580560 (2003-06-01), Benner, Jr.
patent: 6594090 (2003-07-01), Kruschwitz et al.
patent: 6606173 (2003-08-01), Kappel et al.
patent: 6698894 (2004-03-01), Anderson
patent: 6747781 (2004-06-01), Trisnadi
patent: 6824270 (2004-11-01), Kim et al.
patent: 6831789 (2004-12-01), Chang
patent: 6921171 (2005-07-01), Lee et al.
patent: 7048381 (2006-05-01), Kim et al.
patent: 7090359 (2006-08-01), Kim et al.
patent: 7142257 (2006-11-01), Callison et al.
patent: 7147332 (2006-12-01), Conner
patent: 7370972 (2008-05-01), Morikawa et al.
patent: 7554737 (2009-06-01), Knox et al.
patent: 2002/0075460 (2002-06-01), Kappel et al.
patent: 2005/0285027 (2005-12-01), Favalora et al.
patent: 2010/0215794 (2010-08-01), Lin et al.
Bartlett Terry Alan
Rancuret Paul L.
Brady III Wade James
Brill Charles A.
Chowdhury Sultan
Epps Georgia Y
Telecky , Jr. Frederick J.
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