Patent · US Active

Lens holding block and method for blocking, unblocking an optical lens component

US11662544B2 · kind B2 · utility

0Cited by

2References

11Claims

0Family size

Assignee

Essilor International · FR

Inventors

Michael Mauderer · Baar, CH
Holger Schaefer · Weilmünster, DE
Herger ALT · Baar, CH

Key dates

Filing date	Mar 22, 2019
Grant date	May 30, 2023
Priority date	—
Expiry date	Feb 22, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB24B13/0055
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Disclosed is a lens holding block for positioning and retaining a lens substrate in a processing machine, including a bottom part that is able to immobilize the lens holding block in the processing machine and an upper part. The upper part includes a chamber wherein is housed and attached a porous article so as to receive the lens substrate to be processed and which is able to be impregnated with a fluid, and a method for positioning and retaining a lens substrate onto a lens holding block.

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