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:
Oct. 14, 2008
Filed:
Nov. 28, 2007
David Dennis Gill, Albuquerque, NM (US);
Gordon A. Keeler, Albuquerque, NM (US);
Darwin K. Serkland, Albuquerque, NM (US);
Sayan D. Mukherjee, Albuquerque, NM (US);
David Dennis Gill, Albuquerque, NM (US);
Gordon A. Keeler, Albuquerque, NM (US);
Darwin K. Serkland, Albuquerque, NM (US);
Sayan D. Mukherjee, Albuquerque, NM (US);
Sandia Corporation, Albuquerque, NM (US);
Abstract
Methods for manufacturing high precision arrays of curved features (e.g. lenses) in the surface of a workpiece are described utilizing orthogonal sets of inter-fitting locating grooves to mate a workpiece to a workpiece holder mounted to the spindle face of a rotating machine tool. The matching inter-fitting groove sets in the workpiece and the chuck allow precisely and non-kinematically indexing the workpiece to locations defined in two orthogonal directions perpendicular to the turning axis of the machine tool. At each location on the workpiece a curved feature can then be on-center machined to create arrays of curved features on the workpiece. The averaging effect of the corresponding sets of inter-fitting grooves provide for precise repeatability in determining, the relative locations of the centers of each of the curved features in an array of curved features.