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:
Sep. 03, 2013
Filed:
Mar. 23, 2009
Joshua N. Haddock, Roanoke, VA (US);
William Kokonaski, Gig Harbor, WA (US);
Roger Clarke, Cambridge, GB;
Philip Rawlins, Orwell, GB;
Peter Crossley, Comberton, GB;
James John, Cambridge, GB;
Joshua N. Haddock, Roanoke, VA (US);
William Kokonaski, Gig Harbor, WA (US);
Roger Clarke, Cambridge, GB;
Philip Rawlins, Orwell, GB;
Peter Crossley, Comberton, GB;
James John, Cambridge, GB;
PixelOptics Inc., Roanoke, VA (US);
Abstract
Aspects of the present invention provide an electro-active lens and method for manufacturing the same that encapsulates liquid crystal using solid transparent optical material using an improved liquid crystal seal feature. The seal feature greatly reduces the visibility of the liquid crystal seal feature in an assembled electro-active lens. The seal feature is also structurally robust such that the electro-active lens can be processed to fit a spectacle frame without disturbing containment of the liquid crystal and without disrupting electrical connectivity to the lens used to alter the refractive index of the liquid crystal, thereby ensuring fabrication of a commercially viable electro-active lens.