Optical: systems and elements – Having significant infrared or ultraviolet property – Multilayer filter or multilayer reflector
Patent
1992-08-27
1993-08-17
Lerner, Martin
Optical: systems and elements
Having significant infrared or ultraviolet property
Multilayer filter or multilayer reflector
359360, 359582, 359585, 359892, G02B 110, G02B 520
Patent
active
052374475
ABSTRACT:
An alkali metal filter having a layer of metallic bismuth deposited onto the alkali metal is provided. The metallic bismuth acts to stabilize the surface of the alkali metal to prevent substantial surface migration from occurring on the alkali metal, which may degrade optical characteristics of the filter. To this end, a layer of metallic bismuth is deposited by vapor deposition over the alkali metal to a depth of approximately 5 to 10 .ANG.. A complete alkali metal filter is described along with a method for fabricating the alkali metal filter.
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Dunn Donald E.
Fraschetti George A.
Mardesich Nick
Mayall Sherwood D.
McCann Timothy A.
Jones Thomas H.
Kusmiss John H.
Lerner Martin
Miller Guy M.
The United States of America as represented by the Administrator
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