NOVELTY - A device for concentrating or dispersing light (as luminescence concentrator or disperser), consisting of luminescence centres which are (a) made up of dye molecules in zeolites, ordered on the supramolecular level and organised so as to function as antennae, (b) embedded in a polymer as one or more separate layers and (c) lying on or between transparent plates of glass and/or plastic, suitable for total internal reflection and with a thickness of the order of magnitude of one or more of these layers.    USE - For concentrating light (where diffuse or direct light falling on the surface arrives at one, more or all sides of the concentrator in concentrated form due to the frequency shift caused by the antennae and total internal reflection) or for the dispersion of light (where diffuse or direct light falling on one, more or all sides of the disperser is radiated at the surface due to the frequency shift caused by the antennae and total internal reflection), especially (a) as a luminescence concentrator for capturing and concentrating sunlight and feeding it into photovoltaic energy conversion units, fibre optic devices, tandem photovoltaic energy converters-solar cells (to increase the electrical energy efficiency) or combined photovoltaic-hot water systems (for converting light into electricity and heat), or for capturing electromagnetic or particle radiation and converting it into light (as in scintillation counters) and transferring it to a luminescence detector, or (b) as a luminescence disperser for illuminating signal units, lettering, room lighting, two-dimensional/diffuse light sources and background lighting, or for generating locally-directed emission for 3-dimensional imaging in ophthalmology (claimed).    ADVANTAGE - The ordered incorporation and orientation of dye-zeolite material in a polymer enables the complete suppression of light scattering in the relevant long-wave range by the zeolite crystals and thus enables the production of functional and highly efficient luminescence concentrators or dispersers by overcoming, in a single device, the disadvantages of prior-art systems (e.g. emission losses, self-absorption with subsequent re-emission, the necessity of dispersing the chromophores in relatively thick layers, and the limited stability of dyes exposed to plasticizers etc. in the polymer).    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for the production of the device described above by making stacks of alternating glass and/or plastic and dye-zeolite layers in which the space between dye-zeolite layers is determined by the thickness of the interlayer and the layers may differ from one another with regard to dye molecule, layer thickness and relative orientation of zeolite crystals.    DESCRIPTION OF DRAWING(S) - Two-dimensional view of a luminescnce concentrator with two dye-zeolite antenna layers. (Drawing includes non-English language text).    refractive index of external medium (e.g. air) (n0)    refractive indices of transparent glass or plastic interlayers (n1, n2, n3)    thicknesses of interlayers (x1, x2, x3)    refractive indices of dye-zeolite layers (antennae) (ns1, ns2)    thicknesses of dye-zeolite layers. ( delta s1, delta s2)