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:
Mar. 07, 1995
Filed:
Dec. 13, 1993
Kenneth L Opdyke, Fairport, NY (US);
Bausch & Lomb Incorporated, Rochester, NY (US);
Abstract
A target surface is photoablated by a laser beam by the steps of (a) directing a beam of pulsed UV radiation at a bisecting line on the target surface; (b) scanning the beam in a direction away from the bisecting line to a first edge of the target surface, (c) rotating the target 180 degrees, (d) returning the beam to the bisecting line on the target surface, (e) scanning the beam in a direction away from the bisecting line to the edge opposing the first edge of the target surface; and repeating steps (c), (d) and (e) such that the entire target surface is scanned. This scanning process simultaneously clears away deposited debris and avoids subsequent debris accumulation during the photoablation process.