Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jeffrey A. Simpson0
Nathan Strimpel0
Mark A. Imbrock0
Date of Patent
September 1, 2009
0Patent Application Number
117317390
Date Filed
March 30, 2007
0Patent Primary Examiner
Patent abstract
A detection system for measuring glass that has been placed under strain and the resulting stress lines in the glass has a light source of individual elements configured to create a light distribution. The light distribution has a discontinuity which enhances the viewing of a photoelastic effect in the glass. The light source creates a viewable optical interference (i.e., color changes) which results from stress lines in the glass.
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