$Method of manufacturing a thermoplastic laminate incorporating a diffractive optical element$

Method of manufacturing a thermoplastic laminate incorporating a diffractive optical element

A method of manufacturing laminate, including at least a carrying layer (1) and a cover layer (5) each of thermoplastic material bonded together with a diffractive optical element (2) incorporated between them, the method including the steps of: providing a layer (2) having a different refractive in...

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Bibliographische Detailangaben
1. Verfasser:	Tethal, Tomas
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BOOK COVERS BOOKBINDING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FILES INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPECIAL PRINTED MATTER TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method of manufacturing laminate, including at least a carrying layer (1) and a cover layer (5) each of thermoplastic material bonded together with a diffractive optical element (2) incorporated between them, the method including the steps of: providing a layer (2) having a different refractive index from that of the carrying layer (1) or the cover layer (5) and placing the layer (2) on the carrying layer (1), wherein the layer (2) is placed only in some areas of the carrying layer (1); imprinting a stamp (4) with optical diffractive relief (6) thereon into the layer (2); placing the cover layer (5) on the layer (2); and heating the resulting laminate to a temperature at which bonding of the cover layer (5) and the carrying layer (1) occurs.