Patent ID: 7881630

Claim:
A temperature control device which controls a temperature of a heated object heated by a heating section, the temperature control device comprising: a main temperature detecting section which detects heat generated by infrared radiation from the heated object; a compensation temperature detecting section which detects an ambient temperature of the main temperature detecting section; a memory section which stores a temperature correspondence table in which correspondences between output values of the main temperature detecting section and the temperatures of the heated object are shown for respective output values of the compensation temperature detecting section; a temperature calculating section which refers to the temperature correspondence table so as to obtain the temperature of the heated object from the output value of the main temperature detecting section and the output value of the compensation temperature detecting section; and a heat control section which controls a heating power of the heating section on the basis of the temperature obtained by the temperature calculating section, the output values of the compensation temperature detecting section and the output values of the main temperature detecting section in the temperature correspondence table being set so that an interval between adjacent values of the ambient temperatures corresponding to the output values of the compensation temperature detecting section is smaller than an interval between adjacent values of the temperatures of the heated object which temperatures correspond to the output values of the main temperature detecting section.