Patent · US Active

Method for manufacturing an optical element out of glass

US11643352B2 · kind B2 · utility

0Cited by

5References

21Claims

0Family size

Assignee

DOCTER OPTICS SE · DE

Inventors

Alexander KUPPE · Neustadt an der Orla, DE
Peter Mühle · Neustadt an der Orla, DE

Key dates

Filing date	May 4, 2020
Grant date	May 9, 2023
Priority date	—
Expiry date	Feb 27, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C2217/286
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method for manufacturing an optical element out of glass comprises placing a blank made of glass on an annular contact face of a supporting body having a hollow cross section. The blank is heated on the supporting body in a cavity of a protective cap that is arranged in a furnace cavity, such that a temperature gradient is established in the blank in such a way that the blank is cooler inside than on an outside region. The blank is press molded to form the optical element.

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