Vision-ease Lens, Inc.

Bmc Vision-ease Lens, Inc.

Insight Equity A.p.x., L.p.

Sujal Bhalakia

Thomas J Moravec

Gert Levin

Chris Blomberg

A method of making an optical element that includes a thermoplastic power portion, the method including laminating a first thermoplastic sheet to one side of a functional film, laminating a second thermoplastic sheet to a second side of the functional film, and affixing either the first thermoplastic sheet or the second thermoplastic sheet to the power portion, with the other of the first or second thermoplastic sheets being open to atmosphere.

Production of optical elements

Lamination apparatus and process

A polymeric front optical element blank is provided which may be laminated to a rear optical element blank. The polymeric front blank comprises an optical element having an exterior convex surface and an interior concave surface, with an edge between the exterior convex surface and the interior concave surface. The optical is provided with at least two projections which extend away from and higher than the edge on a side of the optical element having the concave surface. These projections assist in aligning an back optical element during lamination so that the two lenses will not move out of optical registry during lamination, especially where centrifugal forces are used to spread an adhesive between the front and rear lenses. It is preferred that there are at least three projections extending away from and higher than the edge on a side of the optical element having the concave surface.

Lens blanks for ophthalmic elements

Growing community of inventors

Plymouth, MN, United States of America

Sujal Bhalakia