| 摘要 |
PROBLEM TO BE SOLVED: To further effectively utilize an infrared ray radiated from an infrared lamp, and lengthen the service life of the infrared ray lamp. SOLUTION: A projection 22 projecting toward the infrared ray lamp 11 is formed in the center of a mirror 20. A part extending to both ends from the tip of the projection 22 is respectively formed as reflecting surfaces 21 composed of concave surface parts 23A and 23B, and is constituted so as to introduce the infrared ray 13A radiated to the back face side from the infrared ray lamp 11 to a heating object member 14 placed on the front side of the infrared ray lamp 11 through the side of the infrared ray lamp 11.
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