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1. WO2020225977 - NON-DISPERSIVE INFRARED GAS DETECTION DEVICE

Publication Number WO/2020/225977
Publication Date 12.11.2020
International Application No. PCT/JP2020/011048
International Filing Date 13.03.2020
Chapter 2 Demand Filed 20.08.2020
IPC
G01N 21/03 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
01Arrangements or apparatus for facilitating the optical investigation
03Cuvette constructions
G01N 21/3504 2014.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
3504for analysing gases, e.g. multi-gas analysis
G01N 21/61 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
59Transmissivity
61Non-dispersive gas analysers
Applicants
  • フィガロ技研株式会社 FIGARO ENGINEERING INC. [JP]/[JP]
Inventors
  • 酒井 創一朗 SAKAI Soichiro
  • 吉元 圭太 YOSHIMOTO Keita
Agents
  • 塩入 明 SHIOIRI Akira
  • 塩入 みか SHIOIRI Mika
Priority Data
2019-08761507.05.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) NON-DISPERSIVE INFRARED GAS DETECTION DEVICE
(FR) DISPOSITIF DE DÉTECTION DE GAZ PAR INFRAROUGE NON DISPERSIF
(JA) 非分散型赤外線ガス検出装置
Abstract
(EN)
In the present invention, a light source, at least one light-receiving element, and an optical cell are attached to a substrate. A light-source-side end part of an optical cell inner surface constitutes a light-source-side mirror having the light source as a focus thereof, and the light-receiving-side end part constitutes a light-receiving-side mirror having the light-receiving element as a focus thereof. The height of the light-receiving element from the substrate is less than the height of the light source from the substrate, and the light-receiving element is provided with a light-receiving surface parallel to the substrate. Light from the light source is reflected by the two mirrors, and is incident on the light-receiving surface parallel to the substrate.
(FR)
Dans la présente invention, une source de lumière, au moins un élément de réception de lumière et une cellule optique sont fixés à un substrat. Une partie d'extrémité côté source de lumière de la surface interne d'une cellule optique constitue un miroir côté source de lumière dont la source de lumière est le foyer, et la partie d'extrémité côté réception de lumière constitue un miroir côté réception de lumière dont l'élément de réception de lumière est le foyer. La hauteur de l'élément de réception de lumière par rapport au substrat est inférieure à la hauteur de la source de lumière par rapport au substrat, et l'élément de réception de lumière est pourvu d'une surface de réception de lumière parallèle au substrat. La lumière provenant de la source de lumière est réfléchie par les deux miroirs, et est incidente sur la surface de réception de lumière parallèle au substrat.
(JA)
基板に光源と少なくとも一個の受光素子と光学セルとが取り付けられている。光学セル内面の光源側端部が光源を焦点とする光源側ミラーを構成し、受光側端部が受光素子を焦点とする受光側ミラーを構成する。受光素子は光源よりも基板からの高さが低く、かつ基板に平行な受光面を備えている。光源からの光は2つのミラーにより反射され、基板と平行な受光面に入射する。
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