US 7,320,587 B2
Contact lens molds and systems and methods for producing same
Neil G. Goodenough, Southampton (United Kingdom); and Gregg A. Dean, Southampton (United Kingdom)
Assigned to Cooper Vision, Inc., Fairport, N.Y. (US)
Filed on Aug. 09, 2005, as Appl. No. 11/200,848.
Prior Publication US 2007/0036878 A1, Feb. 15, 2007
Int. Cl. B29D 11/00 (2006.01)
U.S. Cl. 425—542  [425/192 R; 425/808] 13 Claims
OG exemplary drawing
 
1. A contact lens mold section, comprising:
a lens defining region having a first lens-defining surface which is a negative of an optical quality anterior surface of a contact lens, a substantially opposing second lens-defining surface which is a negative of an optical quality posterior surface of a contact lens, a flange region circumscribing the first and second lens-defining surfaces, and
an elongated region extending substantially radially outwardly from the flange region, the elongated region includes a first portion having a substantially uniform width and a second portion having a diverging width, the second portion being adjacent the flange region and being thinner than the first portion of the elongated region.