Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 10, 2009
Patent Application Number
11695734
Date Filed
April 3, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
A camera apparatus (10) has a zoom lens (12) having a zoom focus setting that is adjustable over a range of focus values and control circuitry for generating a variable voltage potential according to the zoom focus setting. A flash illumination apparatus (20) has a light source (32) and a variable focus liquid crystal lens (24), the variable focus liquid crystal lens (24) having a first and a second solid optical element (40, 50), chamber (44), the two electrodes (42, 48) and liquid crystal material (46). A variable voltage is applied to the liquid crystal material (46) for the lens power according to the zoom focus setting.
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