Patent · US Expired

Object figuring device

US7128737B1 · kind B1 · utility

37Cited by

17References

26Claims

0Family size

Assignee

Carl Zeiss Meditec AG · DE

Inventors

Claus Goder · Nuremberg, DE
Thomas Hollerbach · Jena, DE
Juergen Kuehnert · Jena, DE
Eckhard Schroeder · Eckental, DE

Key dates

Filing date	Oct 20, 1990
Grant date	Oct 31, 2006
Priority date	—
Expiry date	Oct 20, 2010

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K26/073
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A device for figuring objects by means of material erosion of the surface thereof, comprising a pulsed laser beam and a deflection device through which the laser beam is directed at the object surface and via which the object surface is guided. The invention is suitable for figuring natural optical lenses made from a biological substance or artificial optical lenses. The inventive device is provided with an optical device to modify the distribution of the radiation intensity inside the laser beam cross section. The radiation intensity, once the laser beam has passed through the optical device, has a bell-shaped or Gaussian-like distribution in at least one cross sectional direction through the laser beam.

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