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. 02, 2006
Filed:
Oct. 06, 2003
Michael S. Boulineau, Forest Lake, MN (US);
Eric J. Woelfle, Princeton, MN (US);
Xuzhi Qin, Hacienda Heights, CA (US);
Hideyo Sugimura, Northoaks, MN (US);
Derek Harris, Woodbury, MN (US);
Michael S. Boulineau, Forest Lake, MN (US);
Eric J. Woelfle, Princeton, MN (US);
Xuzhi Qin, Hacienda Heights, CA (US);
Hideyo Sugimura, Northoaks, MN (US);
Derek Harris, Woodbury, MN (US);
Vision-Ease Lens, Ramsey, MN (US);
Abstract
A functional wafer of the present invention is disclosed to solve manufacturing difficulties involved in the production of optical elements such as polycarbonate ophthalmic lenses. The functional wafer may include a front layer, a functional layer, and a back layer, whereas the front layer and the back layer are bonded to the functional layer with or without additional adhesive. Said functional layer is smaller than at least the front layer by about 0.5 mm to 5 mm along the perimeter edge. A functional wafer of this construction can be conveniently and effectively incorporated into a lens through an insert injection molding process, in which said back layer will be in contact with the lens material.