Patent · US Expired

Method for manufacturing an eyeglass lens

US7033024B2 · kind B2 · utility

2Cited by

6References

20Claims

0Family size

Assignee

RODENSTOCK GMBH · DE

Inventors

Roswitha Fendt · Munich, DE
Fritz Gruna · Dahme/Mark, DE
Helmut Altheimer · Munich, DE
Walter Haimerl · Munich, DE
Gregor Esser · Munich, DE
Herbert Pfeiffer · Munich, DE

Key dates

Filing date	Jan 24, 2002
Grant date	Apr 25, 2006
Priority date	—
Expiry date	Jan 24, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/061
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method for manufacturing a spectacle lens, in which at first a semi-finished uncut spectacle lens (hereinafter referred to as a blank) is produced, i.e. a spectacle lens having merely one finished optical surface (hereinafter described as base surface); subsequently a prescription-optimized surface is computed according to the data of a spectacle lens prescription; and then the prescription-optimized surface is finished according to the computed data. The invention is characterized by the following method steps: after the production of the semi-finished spectacle lens the base surface is measured; the prescription-optimized surface is computed and finished taking into account not only the individual data of the spectacle prescription, but also the actual shape of the base surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.