Patents Assigned to TELUX LAMPENROHR GMBH
  • Alumino Earth-Alkali Silicate Glasses with High Thermal Capacity for Light Bulbs and Use Thereof
    Publication number: 20050099128
    Abstract: An alumino earth-alkali silicate glass for lamp bulbs of tungsten halogen incandescent lamps has the following glass composition (% by weight) that reduces discoloration during operation of the lamp bulb: SiO2 55.0-62.5?? Al2O3 14.5-18.5?? B2O3 0.8-4.0?? BaO 7.5-17.0? CaO 6.5-13.5? MgO 1.0-5.5?? SrO 0-2.0 ZrO2 0-1.5 TiO2 0-1.0 ZnO 0-0.5 CeO2 0-0.3 R2O <0.03 H2O 0.025-0.
    Type: Application
    Filed: December 29, 2004
    Publication date: May 12, 2005
    Applicant: TELUX LAMPENROHR GMBH
    Inventors: Hannelore Bergmann, Hans-Jurgen Bergmann