Optical fiber scanning apparatus and optical scanning type endoscope

An optical fiber scanning apparatus comprising:

• a frame body defining a cavity, a cross section of the cavity in a long axis direction is square, the cavity having an opening at a distal end;
• an optical fiber configured to emit illumination light from a distal end of the optical fiber, the distal end of the optical fiber being disposed in the cavity;
• a magnetic field generator disposed in the cavity of the frame body, the magnetic field generator comprising four coil units each including a separate flexible substrate, each separate flexible substrate having at least one planar coil, lead-out wiring layers of the at least one planar coil with an insulating layer, coil connection electrode pads and external connection electrode pads extended from a rear end of the lead-out wiring layers;
• and
• a permanent magnet disposed on a portion of the optical fiber arranged in the cavity, the permanent magnet being arranged in the cavity.