Patent · US Active

Beam shaping unit for focusing a laser beam

US8804238B2 · kind B2 · utility

5Cited by

3References

12Claims

0Family size

Assignee

TRUMPF Werkzeugmaschinen GmbH + Co. KG · DE

Inventors

Thomas Rupp · Ludwigsburg, DE
Jens Braun · Stuttgart, DE
Dominik Vees · Lörrach, DE
Juergen-Michael Weick · Asperg, DE
Dieter Burger · Leinfelden, DE

Key dates

Filing date	Oct 22, 2012
Grant date	Aug 12, 2014
Priority date	—
Expiry date	Oct 22, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG02B7/08
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A beam shaping unit for focusing a divergent laser beam includes a first optical element to receive the laser beam, a second optical element to receive the beam from the first optical element, an optical focusing unit to receive the beam from the second optical element, a first focal point adjustment device coupled to the first optical element, the first focal point adjustment device being configured to adjust the beam focal point diameter by manipulating the first optical element, and a second focal point adjustment device coupled to the second optical element, the second focal point adjustment device being configured to adjust, in the beam propagation direction, the beam focal position by manipulating the second optical element, and in which the beam shaping unit is configured to image the beam from the first optical element through an intermediate focal point onto the second optical element.

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