Technique for microstructuring replication moulds

A method for fabricating a mould is disclosed, the method comprising the steps of; depositing a resist on a surface of the mould, patterning the resist in a predetermined pattern, modifying the shape of the mould surface according to the pattern defined by the exposed resist and removing the resist....

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Bibliographische Detailangaben
Hauptverfasser:	MICHAEL THOMAS GALE, MARKUS ROSSI, JUERGEN SOCHTIG
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHIC PROCESSES OR APPARATUS HOLOGRAPHY INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method for fabricating a mould is disclosed, the method comprising the steps of; depositing a resist on a surface of the mould, patterning the resist in a predetermined pattern, modifying the shape of the mould surface according to the pattern defined by the exposed resist and removing the resist. The step of modifying the shape of the mould surface may either comprise the step of etching the mould surface or the step of plating the mould surface. The step of patterning the resist may comprise exposing the resist to a laser interference pattern or a holographic image. The modification to the shape of the mould may be for forming an antireflection surface, diffractive elements or microrelief features in the surface of an article made in the mould; a typical article being a lens or similar optical component.