Optical fiber illumination device

An optical fiber illumination device comprising:

• an optical fiber bundle having a plurality of optical fibers, a resin jacket that covers a bundle of the plurality of optical fibers and emits light, a first end, and a second end, the first end and the second end being polished;
• a first light source placed close to the first end being free of a condenser lens therebetween so as to emit light in a range of angles larger than an angular aperture of the plurality of optical fibers toward the optical fiber bundle;
• and
• a second light source placed close to the second end being free of a condenser lens therebetween so as to emit light in a range of angles larger than the angular aperture of the plurality of optical fibers toward the optical fiber bundle.