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US 2001/0010831 A1Published application
Method for improving the optical separation of fluorescent layers
AssigneeSiemens Aktiengesellschaft
InventorsManfred Fuchs, Erich Hell, Detlef Mattern, Bernhard Schmitt
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Abstract
In a method for improving the optical separation of needle-shaped fluorescent layers, made from a fluorescent material, which are formed by vapor deposition on a substrate, vapor deposition is controlled so that the fluorescent layer is deposited on the substrate with a density which is reduced in comparison to the density that the fluorescent material has as a solid.
Claims15
A method for forming fluorescent layers on a substrate, comprising the steps of:
- vapor depositing a needle-shaped fluorescent layer, composed of fluorescent material, on a substrate;
- and
- controlling vapor deposition of said fluorescent layer so that said fluorescent layer is deposited on said substrate with a density which is reduced in comparison to a density which said fluorescent material has as a solid, to produce a needle-shaped fluorescent layer with optical separation between needle structures.
Dependencies are inferred from the claim text.