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Title:
LIGHT IRRADIATION-TYPE HEATING DEVICE AND FILAMENT LAMP
Document Type and Number:
WIPO Patent Application WO/2019/208568
Kind Code:
A1
Abstract:
Provided is a light irradiation-type heating device in which a plurality of filament lamps are disposed parallel to a workpiece, and with which the workpiece can be more uniformly heated. The light irradiation-type heating device is characterized in that light-emitting units provided to the filament lamps, each light-emitting unit having a different length, are configured so one or more of the following design elements is different in each light-emitting unit so that the power density per unit length of the light-emitting unit and the color temperature and temperature elevation rate of the light-emitting unit are substantially the same in each filament lamp: the number of filament element wires constituting the light-emitting unit; the filament element wire diameter; the total cross-section area of the filament element wires constituting the filament; the coil inner diameter when the filament is wrapped in a coil shape; and the coil pitch when the filament is wrapped in a coil shape.

Inventors:
NISHIKAWA,Masaaki (1-6-5 Marunouchi, Chiyoda-k, Tokyo 50, 〒1008150, JP)
KAWAMURA,Tadakazu (1-6-5 Marunouchi, Chiyoda-k, Tokyo 50, 〒1008150, JP)
Application Number:
JP2019/017240
Publication Date:
October 31, 2019
Filing Date:
April 23, 2019
Export Citation:
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Assignee:
USHIO DENKI KABUSHIKI KAISHA (1-6-5, Marunouchi Chiyoda-k, Tokyo 50, 〒1008150, JP)
International Classes:
H05B3/76; H01K1/02; H01L21/26; H05B3/44
Foreign References:
JP2009117237A2009-05-28
JP2002258646A2002-09-11
JP2008210623A2008-09-11
JP2009200401A2009-09-03
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (First Shin-Osaka MT Bldg. 2nd Floor, 5-13-9 Nishinakajima Yodogawa-ku, Osaka-sh, Osaka 11, 〒5320011, JP)
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