Induction heating cooker

An induction heating cooker comprising:

• a heating coil, having an opening at center, for providing a load pot with induction heating;
• an inverter circuit for supplying a high-frequency current to the heating coil;
• an infrared sensor, disposed under the opening, for sensing an intensity of an infrared ray radiated from the load pot;
• a temperature calculating unit for calculating a temperature of the load pot based on an output from the infrared sensor;
• a control unit for controlling an output from the inverter circuit in response to an output from the temperature calculating unit;
• a first magnetism-proofing unit, disposed under the heating coil, for converging magnetic fluxes;
• a second magnetism-proofing unit, disposed between an inner rim of the heating coil and the infrared sensor, for converging magnetic fluxes;
• and
• a waveguide, disposed lower than an upper surface of the second magnetism-proofing unit, for guiding an infrared ray radiated from the load pot to the infrared sensor.