Title:
PYROELECTRIC ELEMENT, INFRARED RAY DETECTOR, AND GAS ANALYZER
Document Type and Number:
WIPO Patent Application WO/2021/157592
Kind Code:
A1
Abstract:
Provided is a pyroelectric element in which the infrared light detection sensitivity has been improved by making thermal conduction from light-receiving electrodes to compensating electrodes difficult. Also provided are an infrared ray detector and a gas analyzer. The pyroelectric element comprises: a plate-like pyroelectric body; a plurality of light-receiving electrodes that are provided to one surface of the pyroelectric body and used for receiving infrared light; and a plurality of compensating electrodes that are provided to said one surface, the number of the plurality of compensating electrodes being the same as the number of the plurality of light-receiving electrodes. Each of the plurality of light-receiving electrodes forms a pair with one of the plurality of compensating electrodes. The light-receiving electrode and the compensating electrode included in each pair are adjacent to each other, and a slit that runs through the pyroelectric body is provided between the light-receiving electrode and the compensating electrode included in each pair, the position of said slit including the center position between the light-receiving electrode and the compensating electrode included in each pair.
Inventors:
OKAMOTO KAZUTAKA (JP)
Application Number:
PCT/JP2021/003823
Publication Date:
August 12, 2021
Filing Date:
February 03, 2021
Export Citation:
Assignee:
HORIBA LTD (JP)
International Classes:
G01J1/02; G01J1/04; G01N21/61
Foreign References:
| JPH06213715A | 1994-08-05 | |||
| JPS61129537A | 1986-06-17 | |||
| JPH02287223A | 1990-11-27 | |||
| JPS5893834U | 1983-06-25 | |||
| JPS5893833U | 1983-06-25 | |||
| JPH102793A | 1998-01-06 | |||
| JP2015137862A | 2015-07-30 | |||
| JP2015129681A | 2015-07-16 | |||
| JP2002243544A | 2002-08-28 |
Attorney, Agent or Firm:
KOHNO, Hideto et al. (JP)
Download PDF: