Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Reexamination Certificate
2004-05-27
2008-03-04
Sugarman, Scott J. (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
C351S177000
Reexamination Certificate
active
07338160
ABSTRACT:
Eye measurements taken on a patient being fitted for contact lens will include a refraction test and an additional measurement representing corneal depth variation on the surface of an imaginary cylinder having the same diameter as the lens. This information then used during lens manufacture to produce lens in which the perimeter is not circular and does not lie in a plane, but which drops backwards towards the eye at appropriate points to produce a saddle-shaped perimeter.
REFERENCES:
patent: 2264080 (1941-11-01), Hunter
patent: 3212097 (1965-10-01), Adler
patent: 3495899 (1970-02-01), Biri
patent: 4861152 (1989-08-01), Vinzia et al.
patent: 4872876 (1989-10-01), Smith
patent: 5114628 (1992-05-01), Hofer et al.
patent: 5430504 (1995-07-01), Muckenhirn et al.
patent: 5436678 (1995-07-01), Carroll
patent: 5502518 (1996-03-01), Lieberman
patent: 5570142 (1996-10-01), Lieberman
patent: 5724120 (1998-03-01), Svochak et al.
patent: 5953098 (1999-09-01), Lieberman et al.
patent: 6149609 (2000-11-01), Lieberman et al.
patent: 6340229 (2002-01-01), Lieberman et al.
patent: 6416179 (2002-07-01), Lieberman et al.
patent: 0618474 (1994-10-01), None
patent: 973418 (1997-09-01), None
Supplementary European Search Report dated Feb. 9, 2007 for PCT/US2004/016977.
Grierson Jonathan
Lieberman David M.
Collins Darryl J.
Kaplan Gilman Gibson & Dernier LLP
Lerch Joseph B.
Scientific Optics, Inc. c/o Avalon Ventures
Sugarman Scott J.
LandOfFree
Contact lens with shaped periphery does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Contact lens with shaped periphery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Contact lens with shaped periphery will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3979275