Disclosed is an improved fluorescent endoscope system having reduced
factors that cause errors during diagnosis based on quantitative
evaluation of fluorescent intensity for improved accuracy of fluorescent
endoscopic diagnosis. The fluorescent endoscope system includes an
optical source module for providing white light or excitation light; an
endoscope assembly having an optical transmission path for transmitting
light provided from the optical source module to a diagnostic object and
an optical detection module for transmitting reflection light and
fluorescent light from the diagnostic object; an optical path split means
for splitting the path of the reflection light and fluorescent light
transmitted from the endoscope assembly; and a two-chip integration image
detection module having a first optical detection chip for detecting the
reflection light and outputting a first optical detection signal, a
second optical detection chip for detecting the excitation light and
outputting a second optical detection signal, a gain control unit for
controlling a signal amplification gain value to adjust the brightness of
an image detected by the first optical detection chip, a first
amplification unit for amplifying the first optical detection signal
according to the signal amplification gain value, and a second
amplification unit for amplifying the second optical detection signal
according to a changing ratio of the signal amplification gain value.