Patent · US Active

Method for making a spectacle lens

US10838230B2 · kind B2 · utility

0Cited by

11References

10Claims

0Family size

Assignee

Carl Zeiss Vision International GmbH · DE

Inventors

Herbert Krug · Ludwigshafen, DE
Timo Kratzer · Aalen, DE

Key dates

Filing date	Nov 20, 2018
Grant date	Nov 17, 2020
Priority date	—
Expiry date	Dec 8, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/066
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention is directed to a method for making a spectacle lens for a non-presbyopic person wherein the spectacle lens is a ready-to-wear lens and has at least one zone having an optical effect to reduce vision stress. In the method, at least one of the following is provided: the contour of the ready-to-wear spectacle lens and one or several visual points whereat the person looks through the ready-to-wear spectacle lens for one or several visual tasks in the near range. This method step is followed by setting at least one of: a design reference point of the zone, the extent of the zone, the optical effect within the zone based on the provided contour, and the visual points. The spectacle lens is then made with this zone.

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