Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tomohisa Ishikawa0
Date of Patent
January 5, 2010
0Patent Application Number
121099720
Date Filed
April 25, 2008
0Patent Primary Examiner
Patent abstract
A light source error detection system and method including monitoring a plurality of characteristics of a light source and controlling the light source based on a plurality of monitored results. The system and method control the light source differently for a first case when only one of the monitored characteristics is abnormal than a second case when more than two of the monitored characteristics are abnormal. In controlling the light source, an output power of the light source is decreased with different time constant for the first case and the second case.
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