H - Electricity – 05 – B
Patent
H - Electricity
05
B
327/2, 309/47
H05B 6/64 (2006.01) F24C 7/02 (2006.01) F24C 7/04 (2006.01) F24C 7/08 (2006.01) G05D 23/19 (2006.01) H05B 6/68 (2006.01)
Patent
CA 2037937
- 24 - ABSTRACT OF THE DISCLOSURE A heat cooking apparatus arranged to cook a food article through heating by projecting microwave energy generated by a magnetron and heat rays produced by an electric heating unit onto the food article placed in a heating chamber, and including a light source for projecting visible light rays onto the food article, a photo-detector for detecting a light amount of the visible light rays reflected by the food article, a temperature sensor for detecting temperature within the heating chamber, and a control unit which monitors variation with time of detection signals from the photo-detector and the temperature sensor during heating of the food article by the electric heating unit and controls to complete the heating of the electric heating unit by judging that the heating is to be terminated when the detection signal of the photo-detector is reduced by a predetermined value from a maximum value, and the detection signal of the temperature sensor is increased by a predetermined value from an initial value.
Hanatani Sakio
Kaneko Fuminori
G. Ronald Bell & Associates
Sharp Kabushiki Kaisha
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