发明名称 Electric Lamp
摘要 The object of the invention is to provide an electric lamp with a coiled-coil filament, which is made more compact. An electric lamp 1 comprises a bulb 3 and a coiled-coil filament 2 accommodated in the bulb 3. According to the present invention, the coiled-coil filament2 consists of a core filament 2' and an additional filament 2'' which is wound around the core filament 2' and of which the diameter is smaller than the diameter of the core filament 2'.
申请公布号 US2003122464(A1) 申请公布日期 2003.07.03
申请号 US20020257297 申请日期 2002.10.10
申请人 KUROSAWA AKIRA;HIRATSUKA MASAYOSHI 发明人 KUROSAWA AKIRA;HIRATSUKA MASAYOSHI
分类号 H01K1/14;(IPC1-7):H01J1/88 主分类号 H01K1/14
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