Method of driving discharge lamp, driving device, and projector

Details Method of driving discharge lamp, driving device, and projector Method of driving discharge lamp, driving device, and projector

2009-02-17

2011-10-25

Le, Don (Department: 2819)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Impedance or current regulator in the supply circuit

C315S307000

Reexamination Certificate

active

08044602

ABSTRACT:
A method for driving a discharge lamp that supplies an AC current to a discharge lamp having a first electrode and a second electrode so as to produce discharge and to cause the discharge lamp to emit light includes, during a steady operation in which the AC current is supplied to the discharge lamp, changing a difference between the absolute values of average current values for two polarities during one cycle of the AC current in accordance with a predetermined pattern.

REFERENCES:
patent: 7274157 (2007-09-01), Hirata et al.
patent: 7377670 (2008-05-01), Takezawa
patent: 7615941 (2009-11-01), Blumel
patent: 7622869 (2009-11-01), Watanabe et al.
patent: 7786682 (2010-08-01), Ikeda et al.
patent: 7923940 (2011-04-01), Okawa
patent: B2-3201981 (2001-08-01), None
patent: A-2005-38815 (2005-02-01), None
patent: A-2006-32017 (2006-02-01), None
patent: B2-3840054 (2006-11-01), None
patent: A-2008-191449 (2008-08-01), None
patent: WO 2004/086453 (2004-10-01), None

Affiliated with

Also associated with

Rating

Method of driving discharge lamp, driving 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 Method of driving discharge lamp, driving device, and projector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of driving discharge lamp, driving device, and projector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4275682