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Patent Searching and Data


Title:
COMPUTER IMPLEMENTED METHOD OF DETERMINING A BASE CURVE FOR A SPECTACLE LENS AND METHOD OF MANUFACTURING A SPECTACLE LENS
Document Type and Number:
WIPO Patent Application WO/2018/193134
Kind Code:
A3
Abstract:
A computer implemented method of determining a base curve value representing a base curve for a front surface of a spectacle lens comprises the steps of receiving individual prescription data and determining the base curve value for the front surface of the spectacle lens based on the prescription data. The base curve value is calculated from the received prescription data based on a functional relationship between one or more values included in the prescription data and the base curve value.

Inventors:
WELSCHER MARKUS (DE)
WIETSCHORKE HELMUT (DE)
SAUER RALF-ROLAND (DE)
WINTER CHRISTOPH (DE)
Application Number:
PCT/EP2018/060324
Publication Date:
January 03, 2019
Filing Date:
April 23, 2018
Export Citation:
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Assignee:
ZEISS CARL VISION INT GMBH (DE)
International Classes:
G02C7/02
Foreign References:
US3434781A1969-03-25
US2021812A1935-11-19
GB1055541A1967-01-18
US20120086910A12012-04-12
US20100283966A12010-11-11
EP2253990A12010-11-24
US3645610A1972-02-29
DE102014213393A12016-01-14
Attorney, Agent or Firm:
THEOBALD, Andreas (DE)
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