Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masashi Okamoto0
Takanori Samejima0
Date of Patent
February 19, 2008
0Patent Application Number
113492240
Date Filed
February 8, 2006
0Patent Primary Examiner
Patent abstract
The present discharge lamp lighting device is capable of rapid modulation in which a lamp current is rapidly reduced and rapidly restored. The current control circuit is provided to perform specific current control such that the brightness of a lamp is reduced by a predetermined percentage without being affected by a variation or change in lamp voltage over time, thereby reducing a lamp current.
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