| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pyroelectric infrared sensor capable of heightening output voltage and improving an S/N ratio. <P>SOLUTION: A pyroelectric infrared sensor 10 includes plural light receiving parts 3 on one surface side of a diaphragm part 2 provided on one surface side of a substrate 1. Each of the light receiving parts 3 has plural light receiving elements 3a each having a pyroelectric body thin film 33 between a first electrode 31 and a second electrode 32 facing each other in a thickness direction of the diaphragm part 2, and the plural light receiving elements 3a are connected in series. That is, each of the light receiving parts 3 is divided into the plural light receiving elements 3a connected in series. In addition, the plural light receiving parts 3 are connected in anti-series. <P>COPYRIGHT: (C)2013,JPO&INPIT |
