| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem that an illuminating hole formed at a heating chamber wall face has a relationship in which a barrier characteristic of a radio wave conflicts with illuminance in a heating chamber in a high-frequency cooker, but the enhancement of the barrier characteristic of a radio wave lowers the illuminance of the heating chamber and deteriorates the visibility of food or requires that an output by a lighting apparatus is raised. <P>SOLUTION: The light of LED elements disposed on a surface of an LED substrate 7 provided outside a wall face of a heating chamber 2 passes through an illuminating hole 1 having a quadrilateral shape and irradiates the inside of a storehouse. Because the LED elements proximity to the wall face are small in the magnitude of a light source and strong in the directivity of light, even if a quadrilateral illuminating hole 1 has a dimension not affecting the barrier characteristic of a radio wave, it does not prevent light from passing therethrough, and the inside of the storehouse can be irradiated with light without deterioration in transmittance. <P>COPYRIGHT: (C)2013,JPO&INPIT |
