Patent · US Active

Polishing tool for processing optical surfaces

US8979618B2 · kind B2 · utility

1Cited by

27References

13Claims

0Family size

Assignee

Carl Zeiss Vision GmbH · DE

Inventors

Gerd Nowak · Schwarzenbek, DE
Michael Zaiser · Bobingen, DE

Key dates

Filing date	Apr 29, 2011
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Oct 8, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S451/921
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A polishing tool for processing an optical surface of a spectacle lens, having a carrier body and a polishing film, an elastic layer being arranged between said polishing film and said carrier body. Further, there is provision for a surface of said polishing film, which surface is active during processing, to decrease in size in an edge region of said polishing film outwards in said radial direction. Furthermore, an apparatus is provided for polishing an optical surface of a spectacle lens having a polishing tool as described above.

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