An optical data communication link device for use in a magnetic resonance examination system includes a first light emitting and receiving unit and a second light emitting and receiving unit. Between the light generating member, the first optical waveguide, and the light diffuser according to the first light emitting and receiving unit, and the light diffuser according to the first light emitting and receiving unit and the condenser lens according to the second light emitting and receiving unit. And the condensing lens, the second optical waveguide, and the light receiving member of the second light emitting and receiving unit form a first optical path for data communication. Between the light generating member, the first optical waveguide, and the light diffuser according to the second light emitting and receiving unit, and the light diffuser according to the second light emitting and receiving unit and the condenser lens according to the first light emitting and receiving unit. And the condensing lens, the second optical waveguide, and the light receiving member related to the first light emitting and receiving unit form a second optical path for data communication. At least the light generating member related to the first light emitting and receiving unit is configured to be disposed outside the volume defined by the scanning unit. The second light emitting and receiving unit is configured to be at least partially inside the volume. The magnetic resonance inspection system then establishes such an optical data communication link for establishing a two-way data communication link between the control unit of the magnetic resonance inspection system and at least one auxiliary electronic device arranged inside the volume. Includes link device.磁気共鳴検査システムにおける使用のための光データ通信リンク装置は、第１発光および受光ユニットと第２発光および受光ユニットとを含む。第１発光および受光ユニットに係る光発生部材、第１光導波管、および光拡散器と、第１発光および受光ユニットに係る光拡散器と第２発光および受光ユニットに係る集光レンズとの間の空間距離と、第２発光および受光ユニットに係る集光レンズ、第２光導波管、および記受光部材とは、データ通信のための第１光学経路を形成している。第２発光および受光ユ
