Short channel progressive addition lenses

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks

Reexamination Certificate

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Details

C351S161000, C351S164000

Reexamination Certificate

active

07837325

ABSTRACT:
Designing a progressive addition lens includes using scaled surface powers and/or cylinder powers of base curves to determine a set of power targets, and using these targets to determine a lens design.

REFERENCES:
patent: 4952047 (1990-08-01), Barth et al.
patent: 6106118 (2000-08-01), Menezes et al.
patent: 6824268 (2004-11-01), Rubinstein et al.
patent: 7021763 (2006-04-01), Welk et al.
patent: 2004/0263778 (2004-12-01), Wooley
patent: WO97/26579 (1997-07-01), None
patent: WO02/061496 (2002-08-01), None
patent: WO02/084382 (2002-10-01), None
patent: WO2006/009738 (2006-01-01), None
patent: WO2006/026057 (2006-03-01), None

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