Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
William Johnson0
Justin Buch0
Miranda Newbery0
Richard Taylor0
Andrew Roberston0
Jonathan White0
Date of Patent
May 14, 2013
0Patent Application Number
129371360
Date Filed
April 8, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The invention provides a variable focus lens formed from a ring with a front surface and a rear surface, a flexible membrane is attached to a radially inner part of the front surface, and a front cover is attached to a radially outer part of the front surface, a rear cover is provided on the rear surface of the ring, preferably integral with the ring, so that a variable volume cavity is defined between the flexible membrane, the ring and the rear cover, second flexible membrane can be provided between the ring and the rear cover, where the invention also provides a method of filling a variable focus lens, and an adjustment mechanism for varying the focus of the lens.
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