发明名称 |
HIGH INTENSITY DISCHARGE LAMP WITH ULTRAVIOLET ABSORBING ENVELOPE |
摘要 |
An electric arc discharge lamp having an arc discharge light source which emits both visible light radiation and UV radiation enclosed within a borosilicate glas s envelope having a transmission of greater than 90% at a wavelength 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; from 0.0% to about 0.15% Li2O; about 17% B2O3; about 1.4% Al2O3; about 0.6% CaO; about 0.35% MgO; abo ut 0.13% Fe2O3; and the balance SiO2. |
申请公布号 |
CA2178852(C) |
申请公布日期 |
2006.12.05 |
申请号 |
CA19962178852 |
申请日期 |
1996.06.12 |
申请人 |
OSRAM SYLVANIA INC. |
发明人 |
MARLOR, RICHARD C.;BIDDULPH, R. BRUCE |
分类号 |
H01J61/30;C03C3/091;C03C3/093;C03C4/08 |
主分类号 |
H01J61/30 |
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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