| 摘要 |
PURPOSE: A coil filament lamp heater is provided to achieve improved durability by using a coil type Nichrome wire as a heat source, mounting a heat resistant holder in a lamp, and preventing heat from being transferred to a lead wire. CONSTITUTION: A coil filament lamp heater comprises a tube type heat resistant holder(30) having one or more coil holes for accommodating a coil filament(33); and a ring type fixing member(34) covering the outer surface of the heat resistant holder in such a manner that the fixing member absorbs impacts with respect to the inner wall of a vacuum closed container(3).
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