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:
May. 05, 2015
Filed:
Sep. 05, 2013
Varian Semiconductor Equipment Associates, Inc., Gloucester, MA (US);
Jason M. Schaller, Austin, TX (US);
Robert Brent Vopat, Austin, TX (US);
James R. McLane, Beverly, MA (US);
Varian Semiconductor Equipment Associates, Inc., Gloucester, MA (US);
Abstract
A robot calibration method which aligns the coordinate system of a gantry module with the coordinate system of a camera system is disclosed. The method includes using an alignment tool, which allows the operator to place workpieces in locations known by the gantry module. An image is then captured of these workpieces by the camera system. A controller uses the information from the gantry module and the camera system to determine the relationship between the two coordinate systems. It then determines a transformation equation to convert from one coordinate system to the other.