| 摘要 |
A complementary color filter transmits only fluorescence components of fluorescence having been produced from a measuring site exposed to excitation light, which fluorescence components have wavelengths falling within a wavelength region acting as a complementary color with respect to a desired wavelength region. A complementary color signal intensity detector detects a signal intensity of the fluorescence components having passed through the complementary color filter. An entire signal intensity detector detects a signal intensity of fluorescence components, which have wavelengths falling within an entire measurement wavelength region. A signal intensity of fluorescence components, which have wavelengths falling within the desired wavelength region, is calculated from the signal intensities detected by the complementary color signal intensity detector and the entire signal intensity detector. Image information in accordance with the thus calculated signal intensity is displayed.
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