Probe, diagnostic devices and methods of use thereof

Probe 4, at least the light projecting optical fiber 9, a light receiving optical fiber 10, the excitation light guided by the light projecting optical fiber is irradiated to the examination site of the living tissue, observed due to the excitation light consists radiation emitted from the target site to receive by the light-receiving optical fiber, a probe comprises an illumination means for imaging by the imaging means of the endoscope body further, as the illumination unit, a probe tip and arranged light emitting diodes, are such as a light emitting material piece that emits white fluorescent illumination light from the illumination light source 5c illuminating beam guide optical fiber 11 for guiding the probe tip, the excitation is arranged on the probe tip .