Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2011-04-26
2011-04-26
Choi, Jacob Y (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C315S307000
Reexamination Certificate
active
07932680
ABSTRACT:
A discharge lamp control device includes: a discharge lamp driver section which drives a lamp; and a discharge lamp drive control section which performs constant current control so that a discharge lamp current that flows between electrodes of the lamp becomes constant when a discharge lamp voltage applied between the electrodes of the lamp is lower than a first voltage after the lamp has been lighted. The discharge lamp drive control section performs constant power control so that an amount of power supplied to the lamp becomes constant when the lamp voltage is equal to or higher than the first voltage and is equal to or lower than a predetermined voltage which is higher than the first voltage after the discharge lamp has been lighted; and the discharge lamp drive control section reduces the amount of power supplied to the lamp according to an increase in the discharge lamp voltage when the discharge lamp voltage is higher than the predetermined voltage after the lamp has been lighted.
REFERENCES:
patent: 6765355 (2004-07-01), Matsumoto et al.
patent: 6927539 (2005-08-01), Arimoto et al.
patent: 7282865 (2007-10-01), Van Casteren
patent: 7368881 (2008-05-01), Suganuma et al.
patent: 7391165 (2008-06-01), Lee et al.
patent: 7511432 (2009-03-01), Watanabe et al.
patent: 7511433 (2009-03-01), Okawa
patent: 2008/0116820 (2008-05-01), Ozasa et al.
patent: 09-082480 (1997-03-01), None
patent: 2000-028988 (2000-01-01), None
patent: 2003-317986 (2003-11-01), None
patent: A-2003-338392 (2003-11-01), None
patent: A-2004-172086 (2004-06-01), None
patent: 2004-335234 (2004-11-01), None
patent: A-2005-190927 (2005-07-01), None
patent: 2005-285517 (2005-10-01), None
patent: A-2006-140016 (2006-06-01), None
AdvantEdge Law Group, LLP
Choi Jacob Y
Seiko Epson Corporation
Vu Jimmy T
LandOfFree
Discharge lamp control device and projector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Discharge lamp control device and projector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discharge lamp control device and projector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2729332