Preformed Block Piece With Three Points of Support
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United States of America Patent
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Issued Date -
Jun 5, 2008
app pub date -
Jul 26, 2006
filing date -
Aug 10, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a block piece for holding an optical lens to be machined, with a coupling part for holding in a workpiece chuck and with a holding part for fastening the lens. The holding part has a convex or concave holding surface corresponding to a first side of the lens. The holding surface is, according to the shape of the lens to be held, provided in the form of a negative free-forming surface, and the block piece is made from a plastic that can be machined.
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