Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
April 8, 2008
Patent Application Number
11176128
Date Filed
July 7, 2005
Patent Primary Examiner
Patent abstract
An optical device with a focusing optic that focuses a light beam in a focal plane and brings about a phase shift between a first part of the light beam and a second part of the light beam. The optical device has a first interface and a second interface, the first interface retlects the first part of the light beam, and the second interface reflects the second part of the light beam.
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