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:
Jan. 18, 2000
Filed:
Jul. 31, 1998
John A Hopkins, Tullahoma, TN (US);
Frederick A Schwartz, Woodbury, TN (US);
Mary Helen McCay, Monteagle, TN (US);
Thurman Dwayne McCay, Monteagle, TN (US);
Narendra B Dahotre, Tullahoma, TN (US);
John Brice Bible, South Pittsburg, TN (US);
The University of Tennessee Research Corporation, Knoxville, TN (US);
Abstract
This invention relates to an improved laser beam useful in material surface processing and an apparatus for producing the improved laser beam. The improved laser beam of the present invention comprises a power distribution that is more intense at the outer regions than in the central region. The invention includes an apparatus comprising a power spherical and cylindrical optical elements aligned to focus and/or shape a laser beam into a novel profile useful in material surface processing. The invention further includes a method of using this apparatus to focus and/or shape a laser beam for producing Laser Induced Surface Improvements, hereinafter referred to as 'LISI'.