Method of designing ophthalmic lens and ophthalmic lens...

Details Method of designing ophthalmic lens and ophthalmic lens... Method of designing ophthalmic lens and ophthalmic lens...

Filed on

2005-06-07

Date issued

2005-06-07

Examiner

Schwartz, Jordan M. (Department: 2873)

Patent Class

Optics: eye examining, vision testing and correcting

SubClass

Spectacles and eyeglasses

SubSubClass

Ophthalmic lenses or blanks

Other Related Categories

C351S16000R

Type

Reexamination Certificate

Status

active

Patent number

06902273

Description

ABSTRACT:
A method of designing an ophthalmic lens, including: determining specifications of a temporary lens to provide an optical power required by a wearer; applying the temporary lens to a prescribed schematic eye, and effecting emmetropization of an optical system including the temporary lens and schematic eye; obtaining an optical characteristic of the optical system at a position of an optical axis of the temporary lens which is offset from an optical axis of the schematic eye by an offset amount; obtaining successively optical characteristics corresponding to different configurations of the temporary lens with the axes of the temporary lens and schematic eye offset by the offset amount; selecting optimum one of the different configurations of the temporary lens which gives optimum one of the successively obtained optical characteristics; and determining specifications of an intended ophthalmic lens as a final product, based on the selected optimum configuration of the temporary lens.

REFERENCES:
patent: 5220359 (1993-06-01), Roffman
patent: 5235357 (1993-08-01), Winthrop et al.
patent: 5493350 (1996-02-01), Seidner
patent: 6082856 (2000-07-01), Dunn et al.
patent: 6089711 (2000-07-01), Blankenbecler et al.
patent: 6224211 (2001-05-01), Gordon
patent: 2001/0051825 (2001-12-01), Peterson
patent: B2-2859092 (1998-12-01), None
patent: B2-2913191 (1999-04-01), None
patent: B2-3022640 (2000-01-01), None

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