An optical fiber having continuous spot-illumination thereupon, wherein the continuous illumination spot are realized by cutting away a plurality of cladding from the fiber till exposes the core under the micro-windows and let the light wave guided within the core emit form those micro-windows, therefore,...http://www.google.fr/patents/US5901267?utm_source=gb-gplus-shareBrevet US5901267 - Optical fiber having continuous spot-illumination