Fluorescent diagnostic system and method providing color discrimination enhancement

Abstract

A fluorescent imaging device to prevent the breakdown of a fluorescent image high-sensitivity imaging apparatus has a light source for endoscope use which selectively switches between an excitation light and a white light. This introduces a light into a light guide of an endoscope and such light is emitted onto an object. A fluorescent image high-sensitivity imaging device images the fluorescences obtained by excitation with the excitation light which is emitted onto the object. A white light imaging device images a white light image obtained from the white light which is emitted onto the object. A switch inputs a power source onto the fluorescent image high-sensitivity imaging apparatus and there is a mechanism to prevent overprint on an image plane of the fluorescent image high-sensitivity imaging apparatus which is in the imaging condition with the power source inputted. A fluorescent observation image generating device generates a fluorescent observation image signal for fluorescent observation use, and outputted from the fluorescent image high-sensitivity imaging measure of the imaging part is in electric signal from; which a white light observation image signal used for white light observation is derived.