Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1999-04-07
2000-11-07
Epps, Georgia
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351176, 351177, 623 628, G02C 704, G02C 702, A61F 216
Patent
active
061426253
ABSTRACT:
A toric multifocal lens including a plurality of vision correction regions having centers on a common optical center axis, the plurality of vision correction regions providing respective different values of a spherical optical power, each of the plurality of vision correction regions having an optical power for correction of astigmatism, wherein the improvement comprises: at least one of a cylindrical optical power and a cylindrical axis orientation which determine the optical power for correction of astigmatism being different in at least two different vision correction regions of the plurality of vision correction regions, so that the at least two different vision correction regions have respective different values of the optical power for correction of astigmatism.
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Gotou Yuuzi
Kondou Hideaki
Oyama Hiroyuki
Sawano Tadashi
Epps Georgia
Menicon Co. Ltd.
Schwartz Jordan M.
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