Patent · US Expired

DEVICE FOR CONVERTING THE INTENSITY DISTRIBUTION OF A LASER BEAM AND A DEVICE AND METHOD FOR GENERATING A LASER BEAM WITH AN INTENSITY WHICH FALLS CONSTANTLY ALONG AN AXIS FROM ONE SIDE OF THE BEAM TO THE OTHER

US6621639B2 · kind B2 · utility

13Cited by

4References

25Claims

0Family size

Assignee

Microlas Lasersystem GmbH · DE

Inventors

Hans-Jurgen Kahlert · Göttingen, DE
Berthold Burghardt · Oettingen, DE

Key dates

Filing date	Sep 21, 2001
Grant date	Sep 16, 2003
Priority date	—
Expiry date	Oct 23, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/4025
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A device is obtained for converting the intensity distribution of a laser beam in particular into an intensity distribution which falls constantly along an axis from one side to the other in that a homogenizer (10), which mutually superimposes the sub-beams of the laser beam such that when a laser beam with a specific intensity distribution passes through the homogenizer, a homogenization of the intensity distribution of the laser beam is promoted, is combined with at least one inverter (24, 26) which inverts the intensity distribution of a sub-region, in particular a sub-beam or a plurality of adjacent sub-beams, along at least one axis along which the intensity is to be converted. The extent of the fall in intensity from one side to the other can be controlled by means of the number of the inverters.

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