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:
Dec. 07, 2004
Filed:
Mar. 27, 2001
Griffith E. Altmann, Webster, NY (US);
Lisa A. Armstrong, Webster, NY (US);
Kevin D. Beebe, Spencerport, NY (US);
Ian G. Cox, Mendon, NY (US);
Horngyih Huang, Penfield, NY (US);
Michael A. Lesczynski, Honeoye Falls, NY (US);
Arthur W. Martin, Poughkeepsie, NY (US);
Michelle L. Moran, Fairport, NY (US);
Joseph Papalia, Webster, NY (US);
Dominic V. Ruscio, Webster, NY (US);
Bausch & Lomb Incorporated, Rochester, NY (US);
Abstract
A method and mold assembly to control the polymerization of a molded article. In one embodiment, an amorphous posterior mold comprising a non-critical surface having a controlled radius of curvature is used to produce molded articles. In an alternate embodiment, ophthalmic lenses are produced using a posterior mold in which the concave surface of the non-critical surface is filled with a liquid having a similar refractive index as the mold material. In still another embodiment, a positive lens is placed at a predetermined distance adjacent to the mold assembly to alter the irradiation path to the mold assembly. In still another embodiment, a positive lens is placed within the concave surface of the posterior lens.