Illumination apparatus

An illumination system, comprising:

• a light source configured to emit laser light;
• a plurality of illumination apparatuses which use the laser light emitted by the light source;
• and
• optical fibers configured to supply the laser light from the light source to the plurality of illumination apparatuses,
• wherein each of the plurality of illumination apparatuses includes:
• a housing which is tubular, internally includes an optical path for the laser light, and includes a first end surface having an opening through which the laser light passing through the optical path is released;
• a light emitter which is opposed to the opening, receives the laser light released through the opening, converts the laser light into light having a different wavelength of a predetermined color, and emits the light;
• a cap which is removably attached to a first end portion of the housing and through which the light emitted by the light emitter is released;
• and
• a shutter which opens the optical path when the cap is attached to the housing and closes the optical path when the cap is detached from the housing,
• the plurality of illumination apparatuses use the laser light to illuminate a predetermined area, and
• the light source is disposed separately of the plurality of illumination apparatuses and the predetermined area;
• wherein the housing includes a hole extending inwardly from a side surface so as to intersect with the optical path, the shutter includes a shutter member disposed in the hole, the shutter member having a through-hole, and the shutter member is movable between an open position and a closed position, the open position including the through-hole in communication with the optical path so as to open the optical path, the closed position including the through-hole disconnected from the optical path so as to close the optical path.