Patent · US Active

Method of making a spectacle lens

US9738040B2 · kind B2 · utility

3Cited by

1References

18Claims

0Family size

Assignee

Carl Zeiss Vision International GmbH · DE

Inventors

Ralf Meschenmoser · Oberkochen, DE
Norbert Kurz · Aalen, DE
Malte Riedel · Aalen, DE
Stephan Duewel · Aalen, DE

Key dates

Filing date	Oct 31, 2014
Grant date	Aug 22, 2017
Priority date	—
Expiry date	Sep 14, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29L2011/0016
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method for making a spectacle lens includes joining a mold and a sealing ring. The mold has an integrated block piece and a mold shell made by primary shaping and the sealing ring has a first end face, a second end face, a peripheral seal, an opening disposed on the first end face configured to receive a mold, and a flexible membrane on the second end face. A polymerizable material is introduced into the mold cavity with the aid of a pump action of the flexible membrane of the sealing ring. The flexible membrane of the sealing ring is fixed in a desired surface shape and the polymerization is carried out. The mold is removed with a cast-on spectacle lens blank.

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