US Patent 7548031 Lighting apparatus for discharge lamp
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Patent abstract
In the transient electric power control of a discharge lamp containing no mercury or a small amount of mercury, a change value relating to a lamp voltage from the initial value thereof is detected. A control unit is provided to change the temporal change rate of electric power supplied to the discharge lamp during the transient time period in accordance with the increase of the change value or the time lapse.
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US Patent 07548031 Lighting apparatus for discharge lamp US Patent 7548031 Lighting apparatus for discharge lamp
Infobox
Patent Number
0754803100
Patent Number
754803100
Edits on 4 Apr, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
075480310
Date of Patent
June 16, 2009
0Patent Application Number
111818620
Date Filed
July 15, 2005
0Official Website
Patent Primary Examiner
Edits on 24 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
075480310
Date of Patent
June 16, 2009
0Patent Application Number
111818620
Date Filed
July 15, 2005
0Official Website
Patent Primary Examiner
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US Patent 07548031 Lighting apparatus for discharge lamp
Infobox
Is a
Patent jurisdiction
Patent number
07548031
Date of patent
June 16, 2009
Patent application number
11181862
Date Filed
July 15, 2005
Patent primary examiner
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