Gleitsichtsbrillenglasdesignverfahren

Details

Veröffentlichungs-Nr.

EP2428834

Aktenzeichen

EP11180874

Anmeldetag

12. September 2011

Veröffentlichung

1. Juni 2016

Erteilung

1. Juni 2016

Rechtsraum

EP

IPC

G02C7/02G02C7/06

Abstract

A progressive-power spectacle lens design method, the progressive-power spectacle lens including a distance portion, a near portion, and a progressive portion provided between the distance portion and the near portion, the method comprising: decreasing a distance along a principal meridian from a fitting point to a progression start point and increasing a length of a progressive corridor defined by the progression start point and a progression end point when addition power is large, whereas increasing the distance along the principal meridian from the fitting point to the progression start point and decreasing the length of the progressive corridor when the addition power is small, wherein the distance from the fitting point to the progression end point is fixed irrespective of of the addition power.

Anmelder

Firmen

EHS Lens Philippines, Inc.
HOYA LENS MANUFACTURING PHILIPPINES INC.
Seiko Epson Corporation

Land

🇵🇭 PH

Fachgebiete