The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2009
Filed:
Jul. 02, 2007
Dirk Hauschild, Köln, DE;
Aleksei Mikhailov, Dortmund, DE;
Dirk Hauschild, Köln, DE;
Aleksei Mikhailov, Dortmund, DE;
Limo Patentverwaltung GmbH & Co. KG, Gerstengrund, DE;
Abstract
A device for altering an intensity distribution of a laser radiation field contains two substrates with differing refractive indices and with two opposed, mutually corresponding optical functional boundary surfaces, which are at least partly curved. The laser radiation field for altering can pass serially through the optical functional boundary surfaces, whereby a difference in the refractive indices of the first and second substrate is less than 0.1 and the cavity, between the first optical functional boundary surface and the second optical functional boundary surface is embodied such that the laser radiation, on propagation from the first substrate into the second substrate, is essentially subjected to one refraction on the basis of the difference in the refractive indices of the first and second substrate.