Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Benoit Pascal0
Dubroca Guilhem0
Sarayeddine Khaled0
Date of Patent
April 30, 2013
Patent Application Number
12745881
Date Filed
December 11, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
The invention relates to optical guides and more precisely to guides for conveying an image without deforming the same. These guides can particularly be used in the production of ocular-vision optical systems more currently named informative spectacles. The optical guide includes an extraction section made of reflective microstructures at the surface of the guide. The microstructures define prisms having a calculated angle in order to send back the light beam at a given angle relative to the opposite surface enabling the exit thereof from the guide. Advantageously, the cut and the arrangement of said microstructures make them invisible to the eye while generating a large and comfortable image.
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