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:
Aug. 02, 2011
Filed:
Sep. 18, 2009
Ronald D. Blum, Roanoke, VA (US);
William Kokonaski, Gig Harbor, WA (US);
Venkatramani S. Iyer, Roanoke, VA (US);
Joshua N. Haddock, Roanoke, VA (US);
Ronald D. Blum, Roanoke, VA (US);
William Kokonaski, Gig Harbor, WA (US);
Venkatramani S. Iyer, Roanoke, VA (US);
Joshua N. Haddock, Roanoke, VA (US);
E-Vision LLC, Roanoke, VA (US);
Abstract
An ophthalmic lens is presented in which the lens includes a progressive addition region and a dynamic optic. The dynamic optic and the progressive addition region are in optical communication. The progressive addition region has an add power which is less than a user's near viewing distance add power. The dynamic optic, when activated, provides the additional needed optical power for the wearer to see clearly at a near distance. This combination leads to the unexpected result that not only does the wearer have the ability to see clearly at intermediate and near distances, but the level of unwanted astigmatism, distortion, and vision compromise are reduced significantly.