Brevet : EP2518461 - CAPTEUR INFRAROUGE

Titre

CAPTEUR INFRAROUGE

N° et date de publication de la demande

EP2518461 - 31/10/2012

Type de la demande

A1

N° et date de dépôt

EP10839237.4 - 14/12/2010

N° et date de priorité

JP2009295857 - 25/12/2009

Famille de brevets

KR20120120179A ; JP2011149920A ; WO2011078004A1 ; CN102667431A ; EP2518461A1 ; US2012236902A1

Abrégé

Provided is an infrared sensor wherein a large temperature difference can arise between the two temperature sensor devices for detection of infrared rays and for temperature compensation; minimization of the size thereof is easily possible; and the cost of the structure thereof is low. The infrared sensor comprises: an electrical insulating film sheet 2; a first temperature sensor device 3A and a second temperature sensor device 3B which are provided on one side face of he electrical insulating film sheet 2, and are located at a distance from each other; contact electrodes 4 as a pair, with which the first temperature sensor device 3A and the second temperature sensor device 3B are in contact respectively, formed on the one side face of the electrical insulating film sheet 2; an infrared absorbing film 5 which is provided on the other side face of the electrical insulating film sheet 2, and is positioned opposite the first temperature sensor device 3A across the electrical insulating film sheet 2; and an infrared reflector film 6 which is provided on the other side face of the electrical insulating film sheet 2, and is positioned opposite the second temperature sensor device 3B across the electrical insulating film sheet 2; wherein: the first temperature sensor device 3A and the second temperature sensor device 3B comprise: a thermistor element 3a having a plate shape; and electrode layers 3b as a pair, in which one of them is in contact with the contact electrode 4, formed both on the upper and lower surfaces of the thermistor element 3a.