发明授权
- 专利标题： Long life incandescent tungsten-halogen lamp
- 专利标题（中）： 长寿命白炽灯卤素灯
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申请号： US372508申请日： 1982-04-28
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公开(公告)号： US4451760A公开(公告)日： 1984-05-29
- 发明人: Robert M. Griffin , Roy C. Martin
- 申请人： Robert M. Griffin , Roy C. Martin
- 申请人地址： CT Stamford
- 专利权人： GTE Products Corporation
- 当前专利权人： GTE Products Corporation
- 当前专利权人地址： CT Stamford
- 主分类号： H01K1/40
- IPC分类号： H01K1/40 ; H01K1/56 ; H01K1/08
摘要：
Life expectancy, through reduction of filament sag and halogen corrosion of tungsten filaments, is greatly increased for tungsten-halogen lamps by including within the filament environment a quantity of copper. The copper can be present as one of the lead-in wires; a plating on the lead-in wires; a separate copper insert; or a coating on the filament. It is believed the copper acts as an oxygen getter.