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US 2009/0020897 A1Published application
Process for the incorporation of nanophosphors into micro-optical structures
OwnerHolger Winkler, Thomas Juestel +2inventors
InventorsHolger Winkler, Thomas Juestel, Joachim Opitz, Helmut Bechtel
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Abstract
The invention relates to a process for the incorporation of nanophosphors (phosphors) into micro-optical structures, and to corresponding illuminants. In this impregnation process, a micro-optical system comprising inverse opal powders is filled with a dispersion of a nanophosphor.
Claims18
Process for the preparation of a photonic material having regularly arranged cavities containing at least one colorant, characterised in that
- a) opal template spheres are regularly arranged,
- b) the sphere interspaces are filled with one or more wall material precursors,
- c) the wall material is formed, and the opal template spheres are removed,
- d) the colorant is introduced into the cavities, where dissolved colorant precursors are introduced into the cavities of the inverse opal by means of solution impregnation utilising pore diffusion,
- e) the solvent is removed,
- f) the precursors are converted into the colorant in a subsequent step.
3 more elements
Dependencies are inferred from the claim text.