PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging apparatus suppressing an occurrence of a wave of an eddy current on a radiator plate without impairing functions of fixing and radiating a light-emitting device in the radiator plate of lighting equipment.SOLUTION: The magnetic resonance imaging apparatus includes: a light-emitting device for emitting light for lighting a measurement space； and a radiator plate 301 combinedly executing radiation of heat from the light-emitting device and fixing of the light-emitting device. The radiator plate is formed by superposing a plurality of thin plates, both surfaces of which are subjected to insulation work, in the plate thickness direction, includes a plurality of slits formed thereon, and is configured by folding the end portions with respect to the central part.COPYRIGHT: (C)2016,JPO&INPIT【課題】照明機器の放熱板における発光素子の固定と放熱の機能を損なうことなく、放熱板に渦電流の波発生を抑制する、磁気共鳴イメージング装置を提供する。【解決手段】計測空間を照明する光を発する発光素子と、該発光素子からの熱の放熱と該発光素子の固定とを兼ねる放熱板３０１と、を有して成る照明機器を備える磁気共鳴イメージング装置において、放熱板を、両面に絶縁加工が施された複数の薄板を板厚方向に積層して構成し、複数のスリットを形成し、端部が中央部に対して折り曲げられた折り曲げ構造とする。【選択図】図９
