Optical: systems and elements – Having significant infrared or ultraviolet property – Multilayer filter or multilayer reflector
Reexamination Certificate
2011-08-16
2011-08-16
Font, Frank (Department: 2872)
Optical: systems and elements
Having significant infrared or ultraviolet property
Multilayer filter or multilayer reflector
C359S361000, C359S586000, C359S588000, C359S589000, C359S900000, C427S162000
Reexamination Certificate
active
08000002
ABSTRACT:
The invention is based on the object of providing UV interference filters having improved long-term stability. For this purpose, a method for producing a dielectric transmission interference filter is provided, in which an alternating layer system having the constituents magnesium fluoride, lead fluoride and antimony oxide is produced on a substrate by co-evaporation. After deposition, the substrate is subjected to heat treatment and irradiated with UV light in order to stabilize the layer system.
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Brauneck Ulf
Erbach Wolfgang
Jeschkowski Ulrich
Strohmaier Thomas
DeMont & Breyer LLC
Font Frank
Schott AG
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