Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 2, 2009
Patent Application Number
11439691
Date Filed
May 23, 2006
Patent Primary Examiner
Patent abstract
The invention relates to an optical pickup for an optical recording medium, an electrically controlled diffraction grating suitable for use in such a pickup, and to an apparatus for reading from and/or writing to optical recording media using such an optical pickup or diffraction grating.
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