Patent · US Expired

Method for improving the optical separation of fluorescent layers

US6720026B2 · kind B2 · utility

4Cited by

1References

13Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Manfred Fuchs · Nuremberg, DE
Erich Hell · Erlangen, DE
Detlef Mattern · Erlangen, DE
Bernhard Schmitt · Wasserlosen, DE

Key dates

Filing date	Jan 17, 2001
Grant date	Apr 13, 2004
Priority date	—
Expiry date	Feb 17, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH01J9/221
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.