发明名称 |
High pressure mercury vapor discharge lamp |
摘要 |
An improved high pressure mercury vapor discharge lamp having a high color temperature together with high luminous efficacy and a high color rendering. This is accomplished by including in the filling halides of at least one of the rare-earth metals dysprosium, holmium, thulium, erbium, and terbium; together with the halides of at least one of the alkali or alkaline earth metals; and including a filtering agent for radiation in the blue spectral region. The lamp is preferably of isothermal design. The electrodes preferably contain 1-3% of Dy2O3.
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申请公布号 |
US4020377(A) |
申请公布日期 |
1977.04.26 |
申请号 |
US19760674856 |
申请日期 |
1976.04.08 |
申请人 |
PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH |
发明人 |
POPP, HANNS-PETER;PILZ, WALTER |
分类号 |
H01J61/18;(IPC1-7):H01J61/18;H01J61/33;H01J61/40 |
主分类号 |
H01J61/18 |
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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