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1. KR102030307 - LIGHT SENSING DEVICE HAVING FILTER STRUCTURE AND EXPLOSIVE DETECTION SYSTEM INCLUDING SAME

Office
Republic of Korea
Application Number 1020190001154
Application Date 04.01.2019
Publication Number 102030307
Publication Date 08.10.2019
Grant Number 102030307
Grant Date 08.10.2019
Publication Kind B1
IPC
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
G01J 1/04
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 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 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
CPC
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
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
Applicants 아이센테크주식회사
Inventors PARK IN CHANG
KIM JONG HYUN
박인창
김종현
Agents 박영우
Title
(EN) LIGHT SENSING DEVICE HAVING FILTER STRUCTURE AND EXPLOSIVE DETECTION SYSTEM INCLUDING SAME
(KO) 필터 구조를 가지는 광 센싱 장치 및 이를 포함하는 폭발물 탐지 시스템
Abstract
(EN)
A light sensing device includes a light source part, a first filter, a first placement part, a second filter, a third filter and a light receiving part. The light source part emits first light of a first wavelength range. The first filter outputs second light having a first wavelength within the first wavelength range by filtering the first light. The first placement part includes a light emission substance emitting third light of a second wavelength range different from the first wavelength range in response to the second light. The second filter outputs fourth light of a third wavelength range which is equal to or longer than a first reference wavelength within the second wavelength range by filtering the third light based on the first reference wavelength. The third filter outputs fifth light of a fourth wavelength range which is equal to or longer than a second reference wavelength within the third wavelength range by filtering the fourth light based on the second reference wavelength different from the first reference wavelength. The light receiving part receives the fifth light. The light sensing device detects whether there are explosive particles in the air in response to the fourth wavelength range of the fifth light. Therefore, the light sensing device is capable of effectively detecting explosive particles through a light emission substance. COPYRIGHT KIPO 2020

(KO)
광 센싱 장치는 광원부, 제1 필터, 제1 안착부, 제2 필터, 제3 필터 및 수광부를 포함한다. 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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