To provide a tubular heater whose characteristics are satisfactory and can shorten manufacturing time, and a method for manufacturing the tubular heater.
A method for manufacturing a tubular heater is equipped with: a glass tube 1 equipped with a cylindrical part 11 with a space 13 inside, and seal parts 12 formed on both ends of the cylindrical part 11; and a filament 3 arranged so as to be along a tube axis of the glass tube 1 inside the cylindrical part 11, one end side of the cylindrical part 11 is provided with a first subtube 63, and the other end side of the cylindrical part 11 is provided with a second subtube 64, and constituted so that the air of the space 13 whose capacity is 50000 mm3 or more is exhausted from the first, second subtubes 63, 64.
TANAKA ICHIRO
TAKATSUKA MASAAKI
KATO TAKEO
FUJITA YOSHITAKA
OKAMOTO HIRONORI
OHASHI TAKESHI
