| 摘要 |
PROBLEM TO BE SOLVED: To provide a glass for an illumination lamp which contains CeO<SB>2</SB>and can block a UN ray having a wavelength of 313 nm effectively, and has high transparency, a jacket for a fluorescent lamp using the same and a method of manufacturing the jacket for a fluorescent lamp. SOLUTION: The glass contains, by mass, 55-75% SiO<SB>2</SB>, 11-25% B<SB>2</SB>O<SB>3</SB>, 0-10% Al<SB>2</SB>O<SB>3</SB>, 3-13% Li<SB>2</SB>O+Na<SB>2</SB>O+K<SB>2</SB>O, 0-30% MgO, 0-30% CaO, 0-30% SrO, 0-30% BaO, 0-30% ZnO, 0.3-10% CeO<SB>2</SB>, 0.2-10% SnO<SB>2</SB>, 0-<0.3% TiO<SB>2</SB>and 0-0.4 %Cl<SB>2</SB>. COPYRIGHT: (C)2008,JPO&INPIT
|
