PROBLEM TO BE SOLVED: To provide a capsule endoscope capable of realizing proper communications.SOLUTION: A capsule endoscope comprises: a plurality of photoelectric conversion parts having sensitivities individually in a first wavelength light range and a second wavelength light range and arrayed regularly an imaging lens for focusing subject images on the photoelectric conversion parts a first illumination light source for a first wavelength light range arranged around the optical axis of the imaging lens a second illumination light source for a second wavelength light range arranged around the optical axis of the imaging lens a light emission control part for causing the first illumination light source and the second illumination light source to illuminate alternately an imaging control part for acquiring a first wavelength light range image and a second wavelength light range image alternately by the photoelectric conversion parts in association with the time-division luminescences of the first illumination light source and the second illumination light source image buffers for temporarily storing the first wavelength light range image and the second wavelength light range image individually and a radio transmission part for continuously sending the first wavelength light range image and the second wavelength light range image stored in the image buffers.COPYRIGHT: (C)2014,JPO&INPIT【課題】カプセル内視鏡の好適な通信を実現する。【解決手段】本発明に係るカプセル内視鏡は、それぞれ第一波長光域および第二波長光域において感度を有し規則的に配列された複数の光電変換部と、光電変換部に被写体像を結像させる撮像レンズと、撮像レンズの光軸まわりに配置される第一波長光域用の第一照明光源と、撮像レンズの光軸まわりに配置される第二波長光域用の第二照明光源と、第一照明光源および第二照明光源を輪番で時分割発光させる発光制御部と、第一照明光源および第二照明光源の時分割発光に連動して光電変換部により第一波長光域画像および第二波長光域画像をそれぞれ交互に取得する撮像制御部と、第一波長光域画像および第二波長光域画像をそれぞれ一時保存する画像バッファと、画像バッファに記憶された第一波長光域画像および第二波長光域画像を連続して送信する無線送信部とを有する。【選択図】図6
