Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kristian Bergfors0
Mats Kleverman0
Anders Larsson0
Date of Patent
April 26, 2011
Patent Application Number
11800927
Date Filed
May 8, 2007
Patent Primary Examiner
Patent abstract
An electronic device includes a light source, which generates light in response to a signal, and a controller. Because the luminosity of the light source decays over time, the controller generates a utilization value based on a cumulative time that the light source is emitting light, and regulates the signal that is provided to the light source in response to the utilization value to at least partially compensate for decay in the luminosity of the light source.
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