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:
Jun. 12, 2012
Filed:
Jan. 13, 2011
Venkatramani S. Iyer, Roanoke, VA (US);
William Kokonaski, Gig Harbor, WA (US);
Joshua N. Haddock, Roanoke, VA (US);
Roger Clarke, Cambridge, GB;
Ronald D. Blum, Roanoke, VA (US);
Venkatramani S. Iyer, Roanoke, VA (US);
William Kokonaski, Gig Harbor, WA (US);
Joshua N. Haddock, Roanoke, VA (US);
Roger Clarke, Cambridge, GB;
Ronald D. Blum, Roanoke, VA (US);
PixelOptics, Inc., Roanoke, VA (US);
Abstract
Aspects of the present invention provide multifocal lenses having one or more multifocal inserts comprising one or more diffractive regions. A diffractive region of a multifocal insert of the present invention can provide a constant optical power or can provide a progression of optical power, or any combination thereof. A multifocal insert of the present invention can be fabricated from any type of material and can be inserted into any type of bulk lens material. A diffractive region of a multifocal insert of the present invention can be positioned to be in optical communication with one or more optical regions of a host lens to provide a combined desired optical power in one or more vision zones. Index matching layers of the present invention can be used to reduce reflection losses at interfaces of the host lens and multifocal insert.