Ophthalmic lens

Details Ophthalmic lens Ophthalmic lens

2006-06-08

2008-08-19

Sugarman, Scott J (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S177000

Reexamination Certificate

active

07413303

ABSTRACT:
An ophthalmic lens has a complex surface with a fitting cross, a progression meridian having a power addition greater than or equal to 1.5 diopters between far vision and near vision reference points. The complex surface has within a circle of radius 20 mm centered on the geometrical center of the lens, a cylinder value normalized to the addition of less than 0.8, and a rebound of the sphere quantity normalized to the addition of less than 0.04 on said circle. The surface also has a progression length less than or equal to 14 mm, defined as the vertical distance between the fitting cross and the point on the meridian for which the mean sphere reaches 85% of the addition.The lens is suited to hypermetropic wearers with a good perceptual comfort in peripheral vision and good accessibility in near vision.

REFERENCES:
patent: 4307945 (1981-12-01), Kitchen et al.
patent: 4854689 (1989-08-01), Dufour et al.
patent: 5270745 (1993-12-01), Pedrono
patent: 5272495 (1993-12-01), Pedrono
patent: 5488442 (1996-01-01), Harsigny et al.
patent: 5812238 (1998-09-01), Ahsbahs et al.
patent: 5949519 (1999-09-01), Le Saux et al.
patent: 6102544 (2000-08-01), Baudart et al.
patent: 6116734 (2000-09-01), Pedrono et al.
patent: 6260967 (2001-07-01), Edwards et al.
patent: 6318859 (2001-11-01), Baudart et al.
patent: 6382789 (2002-05-01), Baudart et al.
patent: 6540354 (2003-04-01), Chauveau et al.
patent: 6595637 (2003-07-01), Ahsbahs et al.
patent: 6595638 (2003-07-01), Ahsbahs et al.
patent: 6652096 (2003-11-01), Morris et al.
patent: 6682194 (2004-01-01), Ahsbahs et al.
patent: 6793340 (2004-09-01), Morris et al.
patent: 2002/0171803 (2002-11-01), Ahsbahs et al.
patent: 2002/0176048 (2002-11-01), Ahsbahs et al.
patent: 2002/0180928 (2002-12-01), Ahsbahs et al.
patent: 2003/0156251 (2003-08-01), Welk et al.
patent: 0 990 939 (2000-04-01), None
patent: 2 588 973 (1987-04-01), None
patent: 2 683 642 (1993-05-01), None
patent: 2 699 294 (1994-06-01), None
patent: 2 704 327 (1994-10-01), None
patent: 2 753 805 (1998-03-01), None
patent: 2 769 997 (1999-04-01), None
patent: 2 769 998 (1999-04-01), None
patent: 2 769 999 (1999-04-01), None
patent: 2 770 000 (1999-04-01), None
patent: 2 809 193 (2001-11-01), None
patent: 2 820 515 (2002-08-01), None
patent: 2 820 516 (2002-08-01), None
patent: 2 277 997 (1994-11-01), None
patent: WO 98/12590 (1998-03-01), None
patent: WO 03/048841 (2003-06-01), None
W.N. Charman et al., “Astigmatism, accommodation, and visual instrumentation”,Applied Optics, vol. 17, No. 24, pp. 3903-3910 (Dec. 15, 1978).
Rainer G. Dorsch et al., “Coma and Design Characteristics of Progressive Addition Lenses”,Vision Science and Its Applications, Technical Digest Series vol. 1, Santa Fe, New Mexico pp. SaA3-1 / 68-SaA3-4 / 71(Feb. 6-9, 1998).
Eloy A. Villegas et al., “Spatially Resolved Wavefront Aberrations of Ophthalmic Progressive-Power Lenses in Normal Viewing Conditions”,Optometry and Vision Science, vol. 80, No. 2, pp. 106-114 (Feb. 2003).

Affiliated with

Also associated with

Rating

Ophthalmic lens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ophthalmic lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ophthalmic lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3999191