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. 01, 2006
Filed:
Dec. 22, 2004
Levent Biyikli, Cedar Park, TX (US);
Jerome C. Porque, Austin, TX (US);
James M. Battiato, Austin, TX (US);
David B. Stegall, Austin, TX (US);
Levent Biyikli, Cedar Park, TX (US);
Jerome C. Porque, Austin, TX (US);
James M. Battiato, Austin, TX (US);
David B. Stegall, Austin, TX (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A system and method for fabricating structures in an optical substrate. An optical element produces first and second write beams that intersect at a first intersection location at the optical substrate. The first intersection location includes a fringe pattern produced by the first and second write beams. The optical element also produces first and second reference beams that intersect and are recombined at a second intersection location in substantially the same plane as the first intersection location. A controller then controls relative positioning between the optical substrate and the fringe pattern based on a signal derived from the recombined first and second reference beams.