Television – Video display – Projection device
Reexamination Certificate
2005-09-13
2010-06-29
Tran, Trang U (Department: 2622)
Television
Video display
Projection device
C348S756000, C348S760000
Reexamination Certificate
active
07746414
ABSTRACT:
Provided are an illumination system, a projection TV employing the illumination system, and a projection method. The illumination system includes: a laser light source which emits a plurality of laser beams including beamlets along different optical axes; and a diffractive optical element which spatially averages the laser beamlets by superimposing the laser beamlets to remove speckles of the laser beamlets and which shapes each of the laser beamlets.
REFERENCES:
patent: 4918469 (1990-04-01), McGrew
patent: 6323984 (2001-11-01), Trisnadi
patent: 6594090 (2003-07-01), Kruschwitz et al.
patent: 6688758 (2004-02-01), Thibault
patent: 6744502 (2004-06-01), Hoff et al.
patent: 7128420 (2006-10-01), Kapellner et al.
patent: 7244028 (2007-07-01), Govorkov et al.
patent: 7355657 (2008-04-01), Chilla et al.
patent: 7379651 (2008-05-01), Abu-Ageel
patent: 2003/0227684 (2003-12-01), Goto
patent: 2004/0160998 (2004-08-01), Gruhlke et al.
patent: 2006/0012842 (2006-01-01), Abu-Ageel
patent: 2006/0109386 (2006-05-01), Serafimovich et al.
patent: 2007/0273957 (2007-11-01), Zalevsky et al.
patent: 2003-0003273 (2003-01-01), None
Cheong Byoung-ho
Dho Sang-whoe
Kim Sung-ha
Serafimovich Pavel
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
Tran Trang U
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