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1. WO2020141958 - OPTICAL SENSING DEVICE HAVING FILTER STRUCTURE, AND EXPLOSIVE DETECTION SYSTEM INCLUDING SAME

Publication Number WO/2020/141958
Publication Date 09.07.2020
International Application No. PCT/KR2020/000187
International Filing Date 06.01.2020
IPC
G01V 8/20 2006.1
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
8Prospecting or detecting by optical means
10Detecting, e.g. by using light barriers
20using multiple transmitters or receivers
G01N 21/31 2006.1
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
G01J 1/04 2006.1
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1Photometry, e.g. photographic exposure meter
02Details
04Optical or mechanical part
G01N 33/22 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
22Fuels; Explosives
CPC
G01J 1/0411
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1Photometry, e.g. photographic exposure meter
02Details
04Optical or mechanical part ; supplementary adjustable parts
0407Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
0411using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
G01J 1/0433
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1Photometry, e.g. photographic exposure meter
02Details
04Optical or mechanical part ; supplementary adjustable parts
0407Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
0433using notch filters
G01N 21/31
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 sub-millimetre waves, infrared, visible or ultraviolet 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
G01V 8/20
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
8Prospecting or detecting by optical means
10Detecting, e.g. by using light barriers
20using multiple transmitters or receivers
Applicants
  • 아이센테크 주식회사 ISENTECH CO., LTD. [KR]/[KR]
Inventors
  • 박인창 PARK, In Chang
  • 김종현 KIM, Jong Hyun
Agents
  • 김정훈 KIM, Jeong Hoon
Priority Data
10-2019-000115404.01.2019KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) OPTICAL SENSING DEVICE HAVING FILTER STRUCTURE, AND EXPLOSIVE DETECTION SYSTEM INCLUDING SAME
(FR) DISPOSITIF DE DÉTECTION OPTIQUE DOTÉ D'UNE STRUCTURE DE FILTRE, ET SYSTÈME DE DÉTECTION D'EXPLOSIF LE COMPRENANT
(KO) 필터 구조를 가지는 광 센싱 장치 및 이를 포함하는 폭발물 탐지 시스템
Abstract
(EN)
A light source unit emits a first light having a first wavelength range. A first filter filters the first light so as to output a second light having a first wavelength in the first wavelength range. A first mounting unit includes a light-emitting material for emitting, in response to the second light, a third light having a second wavelength range that differs from the first wavelength range. A second filter filters the third light on the basis of a first reference wavelength so as to output a fourth light having a third wavelength range, which is longer than or the same as the first reference wavelength in the second wavelength range. A third filter filters the fourth light on the basis of a second reference wavelength that differs from the first reference wavelength, so as to output a fifth light having a fourth wavelength range, which is shorter than or the same as the second reference wavelength in the third wavelength range. A light reception unit receives the fifth light. Whether explosive particles are present in the air is detected in response to the fourth wavelength range of the fifth light.
(FR)
Selon la présente invention, une première source de lumière laser (1) émet un premier faisceau lumineux ayant une première longueur d'onde. Un premier filtre laisse passer la première lumière de façon à émettre une deuxième lumière ayant une première longueur d'onde dans la première plage de longueurs d'onde. Une première unité de montage comprend un matériau électroluminescent pour émettre, en réponse à la deuxième lumière, une troisième lumière ayant une deuxième plage de longueurs d'onde qui diffère de la première plage de longueurs d'onde. Un deuxième filtre laisse passer la troisième lumière sur la base d'une première longueur d'onde de référence de façon à émettre une quatrième lumière ayant une troisième plage de longueurs d'onde, qui est plus longue que la première longueur d'onde de référence dans la deuxième plage de longueurs d'onde. Un troisième filtre laisse passer la quatrième lumière sur la base d'une deuxième longueur d'onde de référence qui diffère de la première longueur d'onde de référence, de façon à émettre une cinquième lumière ayant une quatrième plage de longueurs d'onde, qui est plus courte que la deuxième longueur d'onde de référence dans la troisième plage de longueurs d'onde. Une unité de réception de lumière reçoit la cinquième lumière. La présence éventuelle de particules explosives dans l'air est détectée en réponse à la quatrième plage de longueurs d'onde de la cinquième lumière.
(KO)
광원부는 제1 파장 범위의 제1 광을 조사한다. 제1 필터는 제1 광을 필터링하여 제1 파장 범위 내의 제1 파장을 갖는 제2 광을 출력한다. 제1 안착부는 제2 광에 응답하여 제1 파장 범위와 다른 제2 파장 범위의 제3 광을 발광하는 발광 물질을 포함한다. 제2 필터는 제1 기준 파장을 기초로 제3 광을 필터링하여 제2 파장 범위 중 제1 기준 파장보다 길거나 같은 제3 파장 범위의 제4 광을 출력한다. 제3 필터는 제1 기준 파장과 다른 제2 기준 파장을 기초로 제4 광을 필터링하여 제3 파장 범위 중 제2 기준 파장보다 짧거나 같은 제4 파장 범위의 제5 광을 출력한다. 수광부는 제5 광을 수광한다. 제5 광의 제4 파장 범위에 응답하여 공기 중에 폭발물 입자가 존재하는지 탐지한다.
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