JP7788552B2 - 煙検知装置 - Google Patents

煙検知装置

Info

Publication number
JP7788552B2
JP7788552B2 JP2024526446A JP2024526446A JP7788552B2 JP 7788552 B2 JP7788552 B2 JP 7788552B2 JP 2024526446 A JP2024526446 A JP 2024526446A JP 2024526446 A JP2024526446 A JP 2024526446A JP 7788552 B2 JP7788552 B2 JP 7788552B2
Authority
JP
Japan
Prior art keywords
light
unit
receiving unit
smoke
emitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2024526446A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023238849A1 (https=
Inventor
義裕 熊倉
啓 磯貝
理人 尾形
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nohmi Bosai Ltd
Original Assignee
Nohmi Bosai Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nohmi Bosai Ltd filed Critical Nohmi Bosai Ltd
Publication of JPWO2023238849A1 publication Critical patent/JPWO2023238849A1/ja
Application granted granted Critical
Publication of JP7788552B2 publication Critical patent/JP7788552B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21—Polarisation-affecting properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke

Landscapes

  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Fire-Detection Mechanisms (AREA)
JP2024526446A 2022-06-09 2023-06-06 煙検知装置 Active JP7788552B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022093782 2022-06-09
JP2022093782 2022-06-09
PCT/JP2023/020955 WO2023238849A1 (ja) 2022-06-09 2023-06-06 煙検知装置

Publications (2)

Publication Number Publication Date
JPWO2023238849A1 JPWO2023238849A1 (https=) 2023-12-14
JP7788552B2 true JP7788552B2 (ja) 2025-12-18

Family

ID=89118462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024526446A Active JP7788552B2 (ja) 2022-06-09 2023-06-06 煙検知装置

Country Status (4)

Country Link
JP (1) JP7788552B2 (https=)
CN (1) CN119234141A (https=)
TW (1) TW202409985A (https=)
WO (1) WO2023238849A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024034491A1 (ja) * 2022-08-12 2024-02-15 能美防災株式会社 煙検知装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008281673A (ja) 2007-05-09 2008-11-20 Sony Corp 画像表示装置
JP2009122983A (ja) 2007-11-15 2009-06-04 Sharp Corp 煙センサおよび電子機器
JP2009246095A (ja) 2008-03-31 2009-10-22 Epson Imaging Devices Corp 光センサ、光検出装置、電気光学装置及び電子機器
WO2011033552A1 (ja) 2009-09-15 2011-03-24 ホーチキ株式会社 煙感知器
JP2020181507A (ja) 2019-04-26 2020-11-05 能美防災株式会社 煙感知器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4870592A (https=) * 1971-12-23 1973-09-25
JPS5258982A (en) * 1975-11-11 1977-05-14 Matsushita Electric Works Ltd Smoke detecting circuit for photoelectric smoke sensor
JPS562537A (en) * 1979-06-20 1981-01-12 Matsushita Electric Ind Co Ltd Smoke detector
JP3251763B2 (ja) * 1993-04-30 2002-01-28 ホーチキ株式会社 火災報知装置及び火災検出方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008281673A (ja) 2007-05-09 2008-11-20 Sony Corp 画像表示装置
JP2009122983A (ja) 2007-11-15 2009-06-04 Sharp Corp 煙センサおよび電子機器
JP2009246095A (ja) 2008-03-31 2009-10-22 Epson Imaging Devices Corp 光センサ、光検出装置、電気光学装置及び電子機器
WO2011033552A1 (ja) 2009-09-15 2011-03-24 ホーチキ株式会社 煙感知器
JP2020181507A (ja) 2019-04-26 2020-11-05 能美防災株式会社 煙感知器

Also Published As

Publication number Publication date
TW202409985A (zh) 2024-03-01
CN119234141A (zh) 2024-12-31
WO2023238849A1 (ja) 2023-12-14
JPWO2023238849A1 (https=) 2023-12-14

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