The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2013
Filed:
Apr. 08, 2009
Justin Buch, Godalming, GB;
William Johnson, Oxford, GB;
Miranda Newbery, Sandy, GB;
Andrew Roberston, Oxford, GB;
Richard Taylor, Oxford, GB;
Jonathan White, Kyoto, JP;
Justin Buch, Godalming, GB;
William Johnson, Oxford, GB;
Miranda Newbery, Sandy, GB;
Andrew Roberston, Oxford, GB;
Richard Taylor, Oxford, GB;
Jonathan White, Kyoto, JP;
Adlens, Ltd., Oxford, GB;
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.