Metal deforming – Tool and/or tool holder
Reexamination Certificate
2006-07-25
2011-12-06
Daniels, Matthew J (Department: 1741)
Metal deforming
Tool and/or tool holder
C029S03300H
Reexamination Certificate
active
08069701
ABSTRACT:
An optical element is manufactured by means of a mould by a replication technique including a mold that is manufactured from a ductile metal and is given a mold shape which corresponds to a pattern of sub-elements by means of a die having a die surface which corresponds to the optical sub-element and which is imprinted in the mold with a predetermined force in consecutive positions in accordance with the pattern. A workpiece holder fastened to the mold including a stepped chamber which is displaceable relative to the workpiece holder by a positioning device. The die surface imprints the sub-shape in the mold with a predetermined force substantially independent of a position occupied by the die during imprinting. The predetermined force plastically deforms the ductile metal exclusively at the area of the surface contact between the mold and the die.
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Dona Marinus J. J.
Swinkels Johannes M. M.
Cohen Jodi
Daniels Matthew J
Koninklijke Philips Electronics , N.V.
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