Light data communication link device for use in magnetic resonance examination systems

A light data communication link device for use in a magnetic resonance examination system including a scanning unit that comprises an enclosure having an outer enclosure surface defined by maximum spatial dimensions of the scanning unit, the light data communication link device comprising:

• a first light emitter and receiver unit and a second light emitter and receiver unit, each light emitter and receiver unit including
• a light generating member that is configured to generate light depending on an electrical signal applied to an electrical input port of the light generating member,
• a light receiving member that is configured to generate an electrical signal at an electrical output port as a function of received light,
• a light diffuser, and
• a converging lens,
• wherein, in each light emitter and receiver unit, the light generating member is optically connected to the light diffuser by a first optical waveguide, and the light receiving member is optically connected to the converging lens by a second optical waveguide of the respective light emitter and receiver unit,
• wherein the light generating member, the first optical waveguide and the light diffuser of the first light emitter and receiver unit, a distance in space between the light diffuser of the first light emitter and receiver unit and the converging lens of the second light emitter and receiver unit, and the converging lens, the second optical waveguide and the light receiving member of the second light emitter and receiver unit form a first optical pathway for data communication,
• wherein the light generating member, the first optical waveguide and the light diffuser of the second light emitter and receiver unit, a distance in space between the light diffuser of the second light emitter and receiver unit and the converging lens of the first light emitter and receiver unit, and the converging lens, the second optical waveguide and the light receiving member of the first light emitter and receiver unit form a second optical pathway for data communication,
• and wherein
• at least the light generating member of the first light emitter and receiver unit is configured to be arranged outside a volume having an outer boundary surface comprising the outer enclosure surface, and
• the second light emitter and receiver unit is configured to be at least partially arranged inside the volume.