Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Reexamination Certificate
2010-07-21
2011-10-25
Sugarman, Scott J (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
Reexamination Certificate
active
08042942
ABSTRACT:
An eye-side refractive surface11of a distance portion is concave and at least part of an eye-side refractive surface3of a near portion is a convex region31where one or both of principal meridians of the surface are convex. This provides a back surface progressive-power lens capable of solving disadvantages in terms of lens thickness, external appearance and the like in a back surface progressive-power lens in which the eye-side refractive surface is formed of a progressive-power surface.
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Amended claims in U.S. Appl. No. 11/916,249, filed Jul. 6, 2010.
Japanese Patent Office Action for JP 2006-176275 dated Jul. 5, 2011 and English-language translation thereof.
Kaga Tadashi
Shinohara Toshihide
Seiko Epson Corporation
Sugarman Scott J
Sughrue & Mion, PLLC
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