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:
Aug. 12, 1997
Filed:
May. 06, 1996
Aaron Lewis, Ithaca, NY (US);
Ilan Pinevsky, Jerusalem, IL;
Other;
Abstract
A method of optically processing a laser beam for in turn processing a substrate with the processed laser beam is disclosed. The energy of the laser beam is altered so that the substrate can be properly processed even with laser outputs of poor beam quality such as low spatial or temporal coherence or unreproducible multimode structure or poor beam pointing stability. The method uses an optical integrator and appropriate optical elements based on the principles of geometrical optics. The optical elements may be aspherical lenses or mirrors whose surface shapes are derived mathmatically based on the desired energy redistribution and based on working in a region where the interaction of the substrate material and the laser energy is known.