Projector and light source device thereof

Details Projector and light source device thereof Projector and light source device thereof

Filed on

2008-01-11

Date issued

2010-11-09

Examiner

Tran, Thuy Vinh (Department: 2821)

Patent Class

Electric lamp and discharge devices: systems

SubClass

Current and/or voltage regulation

Other Related Categories

C353S085000

Type

Reexamination Certificate

Status

active

Patent number

07830098

Description

ABSTRACT:
A light source device includes: a first electrode and a second electrode, a light emitting tube, a main reflection mirror disposed on the first electrode side, a sub reflection mirror disposed on the second electrode side and a current driving device which supplies alternating current and performs power control such that supply energy during an anode period of the first electrode becomes smaller than supply energy during a cathode period of the first electrode at least a predetermined period immediately before a stable operation starts in the period from the start of power supply to the first and second electrodes to the start of the stable operation.

REFERENCES:
patent: 5491525 (1996-02-01), Yamasaki et al.
patent: 6504323 (2003-01-01), Yuda et al.
patent: 7040768 (2006-05-01), Fujisawa et al.
patent: 7122960 (2006-10-01), Tukamoto et al.
patent: 7288899 (2007-10-01), Akiyama
patent: 7661830 (2010-02-01), Takezawa et al.
patent: 7771056 (2010-08-01), Kimura et al.
patent: U-56-059708 (1979-10-01), None
patent: A-6-75222 (1994-03-01), None
patent: A-8-31382 (1996-02-01), None
patent: A-11-143378 (1999-05-01), None
patent: A-2001-66697 (2001-03-01), None
patent: A-2003-347071 (2003-12-01), None
patent: A-2005-19141 (2005-01-01), None
patent: A-2006-4919 (2006-01-01), None
patent: A-2006-30378 (2006-02-01), None
patent: WO 2004/086453 (2004-10-01), None
patent: WO 2004/104689 (2004-12-01), None

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