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US 11,908,677 B1Granted
Gaseous tritium light source
Assigneemb-microtec ag
InventorKarsten Richter
Life of this patent
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Abstract
A gaseous tritium light source (GTLS), which has a hermetically sealed outer sleeve made of glass, more particularly borosilicate glass. A high durability and lighting intensity is produced due to the fact that at least some sections of the outer sleeve have an outer coating applied directly to the outer surface of the outer sleeve serving as a reflective layer made of a metal, wherein the outer coating has an epitaxial structure and wherein the metal has a reflectance of >70% for visible light.
Claims20
A gaseous tritium light source (GTLS), comprising:
- a hermetically sealed outer sleeve made of glass, coated on an inner surface with a luminophore, and filled with gaseous tritium, wherein at least some sections of the outer sleeve have an outer coating applied directly to an outer surface of the outer sleeve, the outer sleeve having a circumference surface with the outer coating provided on the circumference surface and with the outer coating serving as a reflective layer made of a metal, wherein the metal has a reflectance of >70% for visible light, wherein the metallic outer coating is a thin film having a thickness in a range from 30 to 500 nm and wherein the gaseous tritium light source has an average luminance (L)>1.7 [cd/m2].
Dependencies are inferred from the claim text.