Illuminating system having sequential color filtering and a high-pressure discharge lamp
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United States of America Patent
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Dec 25, 2012
Grant Date -
Apr 28, 2011
app pub date -
Apr 26, 2004
filing date -
Apr 30, 2003
priority date (Note) -
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Abstract
The invention relates to a novel operating method and corresponding ballast for illuminating systems having temporally sequential color filtering and a high-pressure discharge lamp operated by alternating current. In this case, at least three commutations of the lamp current are used within a color filtering sequence, in order to be able to operate the lamp advantageously without an excessive increase in the operating frequency of the color filter system.
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Cited Art Landscape
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