Method of designing a spectacle lens

Details Method of designing a spectacle lens Method of designing a spectacle lens

2006-02-01

2008-09-09

Schwartz, Jordan M (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S169000, C351S176000

Reexamination Certificate

active

07422325

ABSTRACT:
A method of designing a spectacle lens having a combined refracting surface in at least one of two refracting surfaces at object and eye sides structuring the spectacle lens, wherein the combined refracting surface has an astigmatic refracting surface combined with a progressive refracting surface having a distance-use area, a near-use area different in refractive power from the distance-use area and a progressive area having a refractive power progressively changing between those.

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