To provide an infrared-ray radiating type infrared heater unit by applying an electric current to a heating wire, which can heat uniformly a heated object and can restrain its running costs.
In the infrared heater unit 10 having a rod-type heater 20 for radiating an infrared ray by applying an electric current to the heating wire and a reflecting surface 32 for reflecting the radiated infrared ray faced to the rod-type heater 20, the reflecting surface 32 is formed by combining a high reflection zone having a relatively-high reflection rate to the infrared ray and a low reflection zone having the relatively-low reflection rate, and furthermore, the high reflection zone is arranged by facing to a section lower than surface temperature of the rod-type heater 20 while applying the electric current to the heating wire, and the low reflection zone is arranged by facing to a section higher than the surface temperature of the rod-type heater 20.
Tasuke Sato
Yukiko Kurita
Shunsuke Umeda
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