IMAGE PROJECTION SYSTEM BY MEANS OF DIRECT CURRENT TYPE HIGH VOLTAGE DISCHARGE
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United States of America Patent
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Issued Date -
Feb 4, 2010
app pub date -
Sep 28, 2006
filing date -
Sep 28, 2006
priority date (Note) -
Abandoned
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Abstract
The image projection system is capable of freely adjusting a tone to suit user preferences. The system has a synchronization signal generating device that generates a synchronization signal composed of a plurality of on-off patterns in synchronism with rotation of a color filter and outputs each of predetermined power levels corresponding one-to-one with the on-off patterns to the high-pressure discharge lamp at fixed timing.
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