Methods for the Precise Locating and Forming of Arrays of Curved Features into a Workpiece

Patent · Tue Oct 14 00:00:00 EDT 2008

OSTI ID:953742

Gill, David Dennis ^[1]; Keeler, Gordon A ^[1]; Serkland, Darwin K ^[1]; Mukherjee, Sayan D ^[1]

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1. Albuquerque, NM

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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• Assignee: Sandia Corporation (Albuquerque, NM)
• Patent Number(s): 7,434,299
• Application Number: 11/946,077
• OSTI ID: 953742
• Country of Publication: United States
• Language: English