Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Brian P. Platner0
Philip H. Mudge0
William J. Fassbender0
Date of Patent
October 30, 2007
Patent Application Number
10819518
Date Filed
April 6, 2004
Patent Primary Examiner
Patent abstract
A portable, handheld artificial light detector distinguishes artificial light from sunlight and identifies low-frequency artificial light from high-frequency artificial light. Artificial light includes light from a lamp powered by an AC source. Low frequency light includes, for example, light produced by a magnetic luminaire ballast, while high frequency light includes light produced by an electronic luminaire ballast.
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