Patent · US Expired

Apparatus and method for molding optical lenses

US6994538B2 · kind B2 · utility

2Cited by

3References

9Claims

0Family size

Assignee

Carl Zeiss Vision GmbH · DE

Inventors

Markus Haidl · Aalen, DE
Norbert Hugenberg · Aalen, DE
Alexander Witte · Bremen, DE

Key dates

Filing date	Aug 16, 2002
Grant date	Feb 7, 2006
Priority date	—
Expiry date	Mar 2, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S425/808
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An apparatus and a method for molding optical lenses are disclosed. The apparatus comprises a first molding shell with a first diameter, a sealing element surrounding the first molding shell, and means for radially clamping the sealing element against the first molding shell, a second molding shell having a second diameter greater than the first diameter, and means for axially clamping the second molding shell with its inner shell surface against a radial front surface of the sealing element. This is done such a hollow cavity is enclosed between the molding shells and the sealing element. The radially clamping means and the axial clamping means are structurally distinct and independent one from the other. The axially clamping means are arranged on an outer shell surface of the second molding shell, opposite to the inner shell surface.

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