Infrared detection element and infrared detection device
AssigneeMurata Manufacturing Co., Ltd.
InventorTomonori OTAKE
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Abstract
An infrared detection element includes a pyroelectric body, first and second light receiving electrodes, and blackened films. The first light receiving electrode is provided on a surface of the pyroelectric body and receives infrared light from a first region. The second light receiving electrode is provided on a surface of the pyroelectric body and receives infrared light from a second region. The blackened films are provided on a surface of the first light receiving electrode and are not provided on a surface of the light second receiving electrode. Thus, infrared reception sensitivity is different between the first light receiving electrode and the second light receiving electrode.
Claims20
An infrared detection element comprising:
- a pyroelectric body;
- a first light receiving electrode on a surface of the pyroelectric body and receiving infrared light from a first region;
- a second light receiving electrode on a surface of the pyroelectric body and receiving infrared light from a second region;
- and
- a light-sensitivity adjustment member that makes infrared reception sensitivity different between the first light receiving electrode and the second light receiving electrode.
Dependencies are inferred from the claim text.