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.
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
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