LIGHT TRANSMISSION BODY TEMPERATURE SENSOR AND DEVICE USING IT

摘要

PROBLEM TO BE SOLVED: To provide a temperature measuring device capable of accurately measuring a light transmission body such as a lens. SOLUTION: A sensor part 21 is provided with a light shielding member 4, thereby preventing light from irradiating the sensor part 21. A heat insulating member 3 is filled between the light shielding member 4 and a thermocouple 2, thereby preventing conduction heat generated in the light shielding member 4 from transferring to the thermocouple 2.