Endoscopic apparatus for thermal distribution monitoring

An endoscopic apparatus comprising:

• an image collecting unit comprising a thermal image collecting unit collecting a thermal image from an image signal of an object and a real image collecting unit collecting a real image from the image signal of the object;
• a controller transmitting a control signal to the image collecting unit so as to transmit the image signal to one of the thermal image collecting unit and the real image collecting unit according to a preset period;
• and
• a display displaying the collected thermal image and real image,
• wherein the image collecting unit comprises a splitting unit splitting an optical path of the image signal in a direction of one of the thermal image collecting unit and the real image collecting unit according to the control signal,
• wherein the thermal image collecting unit comprises an infrared (IR) image sensor, an IR pass filter along an optical path between the splitting unit and the IR image sensor, and a first focusing lens along the optical path between the IR image sensor and the splitting unit,
• wherein the IR pass filter is arranged to pass an IR ray in the image signal and the first focusing lens is arranged to focus the IR ray passed through the IR pass filter, and the IR image sensor is arranged to detect the IR ray focused by the first focusing lens,
• wherein the real image collecting unit comprises a visible (VIS) image sensor, an IR block filter arranged along an optical path between the VIS image sensor and the splitting unit, and a second focusing lens arranged along an optical path between the IR block filter and the VIS image sensor,
• wherein the IR block filter is arranged to block the IR ray in the image signal, the second focusing lens is arranged to focus the image signal having the IR ray blocked by the IR block filter, and the VIS image sensor is arranged to detect the image signal focused by the second focusing lens,
• wherein the real image collecting unit comprises:
• a third collimation lens condensing the image signal;
• and
• a VIS image sensor board converting the detected visible ray into an electrical signal and transmitting the electrical signal to the controller,
• wherein the splitting unit comprises:
• a reflector changing the optical path of the image signal by reflecting the image signal;
• a motor coupled to the reflector and rotating the reflector;
• and
• a motor controller controlling rotation of the motor,
• wherein the motor controller controls rotation of the motor so that a reflecting surface of the reflector and an incidence path of the image signal form an angle corresponding to a first mode or second mode according to the control signal, and
• wherein the image signal is reflected by the reflecting surface and is transmitted to the thermal image collecting unit in the first mode and is reflected by the reflecting surface and is transmitted to the real image collecting unit in the second mode.