Patent · US Active

Device and method for laser processing

US8946586B2 · kind B2 · utility

12Cited by

7References

22Claims

0Family size

Assignee

TRUMPF LASER- UND SYSTEMTECHNIK GMBH · DE

Inventors

Martin Bea · Gerlingen, DE
Joachim Schulz · Stuttgart, DE
Hartmut Zefferer · Heuchelheim, DE

Key dates

Filing date	Mar 24, 2010
Grant date	Feb 3, 2015
Priority date	—
Expiry date	Jul 9, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K26/0734
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A device for laser processing, in which the device includes: a laser including a resonator, the resonator being configured to generate a laser beam with a predetermined caustic during operation of the device; and an optical element to transform a laser beam generated by the resonator into a transformed laser beam having an annular intensity distribution in a plane perpendicular to a propagation direction of the transformed laser beam during operation of the device, in which the annular intensity distribution extends along the propagation direction of the transformed laser beam, and has, at a minimum diameter of a caustic of the transformed laser beam, a beam radius and a ring width corresponding to 50% of a maximum beam intensity in a radial direction of the transformed laser beam, and a ratio of the ring width to the beam radius is less than 0.6.

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