Progressive multifocal lens and method of designing the same

Details Progressive multifocal lens and method of designing the same Progressive multifocal lens and method of designing the same

2006-10-24

2006-10-24

Schwartz, Jordan M. (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S177000

Reexamination Certificate

active

07125118

ABSTRACT:
To provide a new progressive multifocal lens having eyesight corrective power and astigmatism corrective power in the same refracting interface by forming an eyeball-side refracting interface2or an object-side refracting interface3into a curved surface denoted by a combined refracting interface14+15composed of an original progressive refracting interface14set only to exhibit a desired eyesight corrective characteristic and an original toric surface15set only to exhibit a desired astigmatism corrective characteristic with a combination expression denoted by combination expression (1) or (2).

REFERENCES:
patent: 6019470 (2000-02-01), Mukaiyama et al.
patent: 6149271 (2000-11-01), Menezes et al.
patent: 6220704 (2001-04-01), Mukaiyama et al.
patent: 2002-122822 (2002-04-01), None
patent: 2002-520674 (2002-07-01), None
patent: 2002-372689 (2002-12-01), None
patent: WO97/019382 (1997-05-01), None

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