Large diameter positive power ophthalmic lens

Details Large diameter positive power ophthalmic lens Large diameter positive power ophthalmic lens

1989-10-10

1990-12-18

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

350432, G02C 702, G02B 1318

Patent

active

049782118

ABSTRACT:
A positive power ophthalmic lens has a central optically active area the diameter of which is at most equal to the diameter of its geometrical contour. It has an optional peripheral merging area around the central optically active area, between the latter and the geometrical contour. The diameter D.sub.1 in millimeters of the central optically active area is related to the power P of the lens in diopters by a general equation of the type:

REFERENCES:
patent: 3960442 (1976-06-01), Davis et al.
patent: 4239353 (1980-12-01), Koller
patent: 4289387 (1981-09-01), Jalie

Affiliated with

Also associated with

Rating

Large diameter positive power 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 Large diameter positive power ophthalmic lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Large diameter positive power ophthalmic lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1422560