Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 3, 2007
Patent Application Number
11082336
Date Filed
March 17, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
A lighting device for illuminating ice has a sheet of light-transmitting film located below an ice layer and coupled to a light source. The index of refraction of the light-transmitting film is greater than that of the adjoining ice or air so that the light within the film experiences substantial internal reflection. Light is emitted from the film (and the ice surface) at emission regions that disrupt internal reflection.
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