ALUMINIUM REFLECTOR WITH A COMPOSITE REFLECTIVITY-ENHANCING SURFACE LAYER

Reflector having a composite reflectivity enhancing layer as reflecting surf ace layer on a reflector body where the said composite has a sandwich structure with an alu minium layer facing the reflector body, an outer layer, the HI-layer, with a refractive i ndex n2 facing the radiation to be reflec...

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Bibliographische Detailangaben
1. Verfasser:	GILLICH, VOLKMAR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR BLASTING CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF GLASS HEATING JOINING GLASS TO GLASS OR OTHER MATERIALS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MECHANICAL ENGINEERING METALLURGY MINERAL OR SLAG WOOL OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Reflector having a composite reflectivity enhancing layer as reflecting surf ace layer on a reflector body where the said composite has a sandwich structure with an alu minium layer facing the reflector body, an outer layer, the HI-layer, with a refractive i ndex n2 facing the radiation to be reflected, and an intermediate aluminium oxide layer, the LI -layer, with a refractive index n1 which is smaller than n2 The LI-layer is a transparent a nd pore-free barrier layer produced by anodic oxidation of the aluminium layer and having a diele ctric constant .epsilon.1 of 6 to 10.5 at 20 .degree.C and the optical layer thickness dopt,1 of the L I-layer and dopt,2 of the HI- layer are such that dppt,i = di ni = li .lambda./4 10 nm, i = 1, 2 where d1 represents the thickness of the LI-layer in nm, d2 the thickness of the HI-layer in nm, .lambda. the average wave length in nm of the light striking the reflect or surface and l1, l2, uneven natural numbers. The reflectors are particularly suitable as reflecto rs for infrared radiation or for lamps for technical lighting purposes, especially for dayli ght lighting purposes.