Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Taiki Sawabe0
Keiji Nomaru0
Date of Patent
July 12, 2011
0Patent Application Number
126164170
Date Filed
November 11, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A polarizing device for converting a circularly polarized light beam into a radial polarized light beam, wherein the circularly polarized light beam is obtained by passing a linearly polarized light beam oscillated from a laser oscillator through a quarter-wave plate. The polarizing device includes an axicon lens having a conical surface and a dielectric film formed on the conical surface of the axicon lens.
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