| abstract |
An object of the present invention is to enable observation using a plurality of types of light having different spectral characteristics and to obtain a high-resolution image while reducing the diameter of an insertion portion of an endoscope. A light source unit that emits a plurality of types of irradiation light having different spectral characteristics irradiated toward an imaging target, an optical system that propagates the irradiation light toward the imaging target, and a part that is placed in a body cavity. Provided between the imaging means 14 capable of imaging fluorescence emitted from a subject to be imaged by irradiation of a plurality of types of irradiation light and light having a wavelength band different from the fluorescence, and between the imaging means 14 and the tip of the part 2 The variable spectral means 13 is arranged in the optical path of the light source and can change the wavelength band of the light incident on the imaging means 14 from the object to be imaged by changing the spectral characteristics, and the spectral characteristics of the irradiation light emitted from the light source unit 4 and the variable spectral means An endoscope system 1 including a light source unit 4, a variable spectroscopic unit 13, and a control unit 5 that controls the imaging unit 14 is provided by associating the 13 spectral characteristics with the exposure amount of the imaging unit 14. [Selection] Figure 1 |