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:
Nov. 07, 2006
Filed:
May. 25, 2005
Jay Johnson, Portland, OR (US);
David Watt, Newark, CA (US);
Brian Baird, Oregon City, OR (US);
Richard Harris, Portland, OR (US);
Jay Johnson, Portland, OR (US);
David Watt, Newark, CA (US);
Brian Baird, Oregon City, OR (US);
Richard Harris, Portland, OR (US);
Electro Scientific Industries, Inc., Portland, OR (US);
Abstract
Digital control of frequency and/or amplitude modulation techniques of an intracavity and/or extracavity AOM () facilitate substantially full extinction of a laser beam () to prevent unwanted laser energy from impinging a workpiece (); facilitate laser pulse amplitude stability through closed-loop control of pulse-to-pulse laser energy; facilitate beam-positioning control including, but not limited to, closed-loop control for applications such as alignment error correction, beam walk rectification, or tertiary positioning; and facilitate employment of more than one transducer on an AOM () to perform any of the above-listed applications.