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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.:

US 8069701 B1

PDFFull Text
Expired
Date of Patent:
Dec. 06, 2011

Filed:

Jul. 25, 2006

Device for manufacturing a mould for use in the manufacture of an optical element comprising optical sub-elements mutually arranged in a pattern

Applicants:

Marinus J. J. Dona, Eindhoven, NL;

Johannes M. M. Swinkels, Eindhoven, NL;

Inventors:

Marinus J. J. Dona, Eindhoven, NL;

Johannes M. M. Swinkels, Eindhoven, NL;

Assignee:

Koninklijke Philips Electronics N.V., Eindhoven, NL;

Attorney:
Primary Examiner:

Matthew J Daniels

Assistant Examiner:

Jodi Cohen

Int. Cl.
CPC ...
B21D 43/02 (2006.01); B21D 43/04 (2006.01); B28B 7/16 (2006.01); B28B 7/24 (2006.01); B28B 3/00 (2006.01); B21J 13/00 (2006.01); B21D 37/01 (2006.01);
U.S. Cl.
CPC ...
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.. (2011). Device for manufacturing a mould for use in the manufacture of an optical element comprising optical sub-elements mutually arranged in a pattern (U.S. Patent No. 8069701). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8069701

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