Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 13, 2010
Patent Application Number
12251394
Date Filed
October 14, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
An exemplary prism sheet includes a first surface and a second surface opposite the first surface. The first surface defines a plurality of elongated V-shaped grooves, and the elongated V-shaped grooves are parallel to each other. The second surface defines a plurality of parallelogram microstructures. Each parallelogram microstructure defines four adjacent triangular pyramid depressions.
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