发明名称 |
Lead and arsenic free, solarization resistant glass |
摘要 |
<p>An electric arc discharge lamp having an arc discharge light source which emits both visible light radiation and UV radiation enclosed within an anti-solarization borosilicate glass envelope which is lead and arsenic free and having a transmission of greater than 90% at a wave length of 425 nm and a transmission of not more than 40% of said UV radiation at 320 nm; 8% of said UV radiation at 300 nm; and 0.5% of said UV radiation at 290 nm; said borosilicate glass comprising, in weight percent: from about 3.89% Na2O; about 1.5% K2O; about 0.15% Li2O; about 17 % B2O3; about 1.4% Al2O3; about 0.6% CaO; about 0.35% MgO; about 0.15%CeO2; from about 0.075% to about 0.30% SnO2; and the balance SiO2. Also, a glass having the above composition.</p> |
申请公布号 |
EP0735007(A1) |
申请公布日期 |
1996.10.02 |
申请号 |
EP19960103884 |
申请日期 |
1996.03.12 |
申请人 |
OSRAM SYLVANIA INC. |
发明人 |
MAYLOR, RICHARD C.;BIDDULPH, R. BRUCE |
分类号 |
C03C3/091;C03C3/095;C03C4/08;H01J61/30;(IPC1-7):C03C3/095 |
主分类号 |
C03C3/091 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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