Wegner & Bretschneider
Pyroelectric infrared detector
 This invention concerns a pyroelectric infrared detector, comprising a substrate and polymeric pyroelectric elements mounted to both surfaces of the substrate, in which the electrode plates on one of the polymeric pyroelectric element are connected electrically to the electrode plates of opposite polarities on the other of the polymeric pyroelectric elements respectively. 
Kureha Kagaku Kogyo Kabushiki Kaisha
H G
H01L G01J
inventional inventional
Naohiro Tetuaki Hiroshi
Murayama Kon Obara