Aspheric lenses

Details Aspheric lenses Aspheric lenses

1991-01-02

1992-01-28

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351168, 351169, G02C 702, G02C 706

Patent

active

050838598

ABSTRACT:
Ophthalmic spectacle lenses with spherical powers between -0.25 and -12.00 diopters and cylindrical powers between -0.25 diopters and -4.00 diopters are disclosed. The lenses are provided with a convex spherical anterior surface and a concave aspherical posterior surface which also includes a correction for ocular astigmatism. The form of the posterior surface is determined by optimizing the aspheric curve along each principal meridian of the aspheric surface. The curve along each meridan of the posterior surface is described by the general equation:

REFERENCES:
patent: 3960442 (1976-06-01), Davis et al.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1856752