Patent ID: 9044163
Filing Date: 2015-06-02
Classification: A61B

Abstract:
1. An endoscope apparatus comprising: an illumination device configured to irradiate at least three kinds of illumination light having different wavelengths including standard light, first reference light, and second reference light onto a biological object serving as a subject; an illumination light switching device configured to periodically switch the at least three kinds of illumination light irradiated by the illumination device in each imaging frame; an imaging device configured to receive return light from the subject onto which the at least three kinds of illumination light switched by the illumination light switching device are irradiated and capture image data in each imaging frame; and a biological information acquisition device configured to acquire biological function information relating to the biological object from the captured image data captured by the imaging device, wherein the illumination light switching device switches an irradiation order of the at least three kinds of illumination light by the illumination device at least in order of the first reference light, the standard light, and the second reference light in the same cycle, and the imaging device acquires at least the image data of a first reference image, the image data of a standard image, and the image data of a second reference image in the same cycle using the respective return light of the at least three kinds of illumination light which are irradiated onto the biological object by the illumination device at least in order of the first reference light, the standard light, and the second reference light in the same cycle, and acquires at least the first reference image, the standard image, and the second reference image, respectively, and the standard light is broadband light including a visible light wavelength band, and the first reference light and the second reference light are narrowband light having a predetermined wavelength bandwidth, and the biological information acquisition device