Patent · US Expired

Device for homogenizing a light beam

US5414559A · kind A · utility

62Cited by

5References

3Claims

0Family size

Assignee

Microlas Lasersystem GmbH · DE

Inventors

Berthold Burghardt · Oettingen, DE
Hans-Jurgen Kahlert · Göttingen, DE
Uwe Sarbach · Jena, DE

Key dates

Filing date	Jun 22, 1993
Grant date	May 9, 1995
Priority date	—
Expiry date	Jun 22, 2013

Classification

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

Abstract

An optical device for homogenizing a light beam comprises a plurality of first lenses on which the light beam impinges from one side. At the side on which the light beam impinges the first lenses are convex, while they are prismatic at the opposite side at which the light beam emerges from the lenses. At least one convergent lens is disposed downstream of the lenses mentioned in the direction of the light beam. Instead of giving the first lenses a prismatic configuration it is also possible to make the first lenses plano-convex and arrange second lenses of plano-concave shape downstream of the first lenses in the direction of the light beam.

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