发明名称 |
Lensed end lamp with curved filament for uniform illumination |
摘要 |
A lamp which provides substantially uniform illumination over a predetermined area which includes a glass envelope having a lensed end and a curved filament contained within the envelope. The filament contains a plurality of coils which are disposed in a concave orientation with respect to the lensed end.
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申请公布号 |
US5793159(A) |
申请公布日期 |
1998.08.11 |
申请号 |
US19960738898 |
申请日期 |
1996.10.28 |
申请人 |
WELCH ALLYN, INC. |
发明人 |
WEST, TERESA MOTZ;LAGERWAY, WILLIAM HENRY;DEAN, RAYMOND ALAN |
分类号 |
H01K1/14;H01K1/30;(IPC1-7):H01K1/28;H01K7/00 |
主分类号 |
H01K1/14 |
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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