Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Songyang Li0
Tat Ming Teo0
Date of Patent
August 11, 2009
Patent Application Number
11864687
Date Filed
September 28, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
In at least one example, an optical component includes a central optical surface proximate an optical axis, a peripheral portion extending radially from the central optical surface, and a stepped portion between the central optical surface and the peripheral portion. The stepped portion may be formed to raise the central optical surface above the peripheral portion.
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