Discharge lamp driving device, projector, and discharge lamp driving method
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United States of America Patent
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Jan 9, 2018
Issued Date -
N/A
app pub date -
May 31, 2016
filing date -
Jun 4, 2015
priority date (Note) -
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Abstract
A discharge lamp driving device according to one aspect of the invention includes a discharge lamp driving section configured to supply a driving current to a discharge lamp including electrodes and a control section configured to control the discharge lamp driving section. The control section controls the discharge lamp driving section such that a mixed period is provided in which a first period in which an alternating current having a first frequency is supplied to the discharge lamp and a second period in which a direct current is supplied to the discharge lamp are alternately repeated. The first frequency includes a plurality of frequencies different from one another. The control section temporally changes the length of the first period.
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