| 发明名称 |
Arc discharge lamp having improved lumen maintenance |
| 摘要 |
Lumen maintenance of fluorescent lamps is improved by overcoating the phosphor layer with a coating of submicron size alumina having a weight greater than 160 micrograms per square centimeter.
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| 申请公布号 |
US4639637(A) |
申请公布日期 |
1987.01.27 |
| 申请号 |
US19810228865 |
申请日期 |
1981.01.27 |
| 申请人 |
GTE PRODUCTS CORPORATION |
发明人 |
TAUBNER, FRED R.;ROY, JOSEPH A. |
| 分类号 |
H01J61/35;H01J61/42;(IPC1-7):H01J31/00;H01J31/26 |
主分类号 |
H01J61/35 |
| 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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