Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Reexamination Certificate
2011-08-16
2011-08-16
Collins, Darryl J (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
C351S161000, C351S177000
Reexamination Certificate
active
07997726
ABSTRACT:
A method for determining by optimization a set of progressive ophthalmic lenses for a given user for whom a near vision power addition (Addn) has been prescribed includes the following steps: measuring the user's near vision individual physiological parameters; determining an ergorama associating, on each lens, a target point in each look direction in worn conditions; determining a target power defect and a resulting target astigmatism for each direction of look under worn conditions, the target power defect and the resulting target astigmatism being determined from the user's measured physiological parameters; computing the power required for each lens for said ergorama by successive iterations to reach the target power defect and the target astigmatism for each look direction.
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Stefanie Schuldt, “ysis—Naturliches Sehen erleben”,Doz Optometrie&Fashion, vol. 59, No. 5, pp. 38-43 (May 3, 2004).
Drobe Bjorn
Pedrono Claude
Collins Darryl J
Essilor International "Compagnie Generale d'Optique"
HKH Law, LLC
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