Optics: image projectors – Temperature control
Reexamination Certificate
2011-08-23
2011-08-23
Sohn, Seung C (Department: 2878)
Optics: image projectors
Temperature control
C359S199100
Reexamination Certificate
active
08002414
ABSTRACT:
For enabling to prevent ill effects from being generated in the structures of a reflection mirror, even if increasing an output energy from a light source, thereby preventing ill influences from being exerted on the driving condition thereof, a mirror drive controller unit7reads out history data of the past, relating to temperature changes on a micro mirror1, from a first LUT holder unit19. Upon basis of the read-out history data of the past is presumed the temperature on the micro mirror1at the present time. The presumed temperature on the micro mirror1is temperature P temp of the micro mirror1at the present time, and upon that P temp are changed vibration (or oscillation) condition of the micro mirror1in the horizontal (H) direction and vibration (or oscillation) condition thereof in the vertical (V) direction.
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patent: 7697180 (2010-04-01), Nakajima
patent: 2006/0164710 (2006-07-01), Fujii et al.
patent: 2006/0245009 (2006-11-01), Akiyama et al.
patent: 2008/0055689 (2008-03-01), Mochizuki
patent: 2006-343397 (2006-12-01), None
Greg Niven et al, Trends in Laser Light Sources for Projection Display, IDW' 06, pp. 1939-1942, 2006.
Hirata Koji
Ikeda Hidehiro
Kobori Tomoki
Murata Seiji
Ouchi Satoshi
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Sohn Seung C
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