| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heating unit that effectively uses radiation from a heat transfer plate of the heating unit including a light source and the heat transfer plate. <P>SOLUTION: In the heating unit that irradiates the heat transfer plate by a halogen lamp and heats a body to be heated with heat transferred from the irradiated heat transfer plate, the heat transfer plate comprises a holder which has optical transparency and a heat transfer body which is provided to the holder on the side of the body to be heated, and absorbs light transmitted through the holder to generate heat. A light source-side surface of the holder is processed into a mirror surface, and a surface roughness Ra (μm) of the surface processed into a mirror surface has a value smaller than a wavelength of 2.5 (μm) of the radiant light radiated by the heat transfer body. <P>COPYRIGHT: (C)2012,JPO&INPIT |
