Abstract:
A medical diagnosis device and a method for controlling the device that detect an abnormal portion of a diagnosis target early and accurately are provided. A medical diagnosis device according to an embodiment of the present invention includes: a light source configured to irradiate light onto a diagnosis target; an optical filter configured to filter out visible light and infrared light from light reflected from the diagnosis target and convert an optical path of the filtered visible or infrared light; a polarization beam splitter configured to polarize the infrared light filtered by the optical filter; a first image acquisition unit configured to acquire a first image from the visible light filtered by the optical fiber; and a second image acquisition unit configured to acquire a second image from the infrared light polarized by the polarization beam splitter.