Patent · US Expired

Device for machining optical workpieces

US6394892B2 · kind B2 · utility

29Cited by

2References

18Claims

0Family size

Assignee

Lo Optikmaschinen AG · DE

Inventors

Manfred Hanisch · Gammertingen, DE
Joachim Diehl · Katzenelnbogen, DE
Holger Schäfer · Hachenburg, DE

Key dates

Filing date	Jun 25, 2001
Grant date	May 28, 2002
Priority date	—
Expiry date	Jun 25, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T483/1882
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A very versatile device is proposed for high-precision machining of optical workpieces, in particular optical lenses, which comprises a horizontally displaceable gantry with at least one vertically displaceable tool spindle and a yoke with workpiece holding means mounted so as to be rotatable about a swivel axis by means of journals fitted on both sides. For swivelling of the yoke without gearing and therefore without backlash, a torque motor is provided concentrically to the swivel axis, which motor is directly connected actively with one of the journals.

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