| 摘要 |
Disclosed is an infrared sensor which is able to obtain a large temperature difference between a heat sensitive element for infrared ray detection and a heat sensitive element for temperature compensation, as well as has an inexpensive structure which is conducive to a compact assembly. The infrared sensor comprises an insulating film (2); a first heat sensitive element (3A) and a second heat sensitive element (3B) spaced apart from each other on one face of the insulating film (2); a pair of adhesive electrodes (4), formed on one face of the insulating film (2), to which the first heat sensitive element (3A) and the second heat sensitive element (3B) adhere respectively; an infrared absorbing film (5) arranged on the other face of the insulating film (2) opposite the first heat sensitive element (3A); and an infrared reflecting film (6) arranged on the other face of the insulating film (2) opposite the second heat sensitive element (3B). The first heat sensitive element (3A) and the second heat sensitive element (3B) have a tabular thermistor body (3a) and a pair of electrode layers formed respectively on front and back surfaces of the thermistor body (3a), with one of the electrode layers adhering to the adhesive electrode (4). |
