JPS60118999A - 煙感知器 - Google Patents

煙感知器

Info

Publication number
JPS60118999A
JPS60118999A JP22602583A JP22602583A JPS60118999A JP S60118999 A JPS60118999 A JP S60118999A JP 22602583 A JP22602583 A JP 22602583A JP 22602583 A JP22602583 A JP 22602583A JP S60118999 A JPS60118999 A JP S60118999A
Authority
JP
Japan
Prior art keywords
light
level
emitting element
light emitting
receiving
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.)
Granted
Application number
JP22602583A
Other languages
English (en)
Japanese (ja)
Other versions
JPH057760B2 (enrdf_load_html_response
Inventor
穆 山田
村上 和正
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP22602583A priority Critical patent/JPS60118999A/ja
Publication of JPS60118999A publication Critical patent/JPS60118999A/ja
Publication of JPH057760B2 publication Critical patent/JPH057760B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
JP22602583A 1983-11-30 1983-11-30 煙感知器 Granted JPS60118999A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22602583A JPS60118999A (ja) 1983-11-30 1983-11-30 煙感知器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22602583A JPS60118999A (ja) 1983-11-30 1983-11-30 煙感知器

Publications (2)

Publication Number Publication Date
JPS60118999A true JPS60118999A (ja) 1985-06-26
JPH057760B2 JPH057760B2 (enrdf_load_html_response) 1993-01-29

Family

ID=16838603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22602583A Granted JPS60118999A (ja) 1983-11-30 1983-11-30 煙感知器

Country Status (1)

Country Link
JP (1) JPS60118999A (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999030132A1 (en) * 1997-12-09 1999-06-17 Matsushita Electric Industrial Co., Ltd. Angle-of-rotation measuring instrument urine analysis method
JP2021157743A (ja) * 2020-03-30 2021-10-07 能美防災株式会社 炎検知システム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53105197A (en) * 1977-02-24 1978-09-13 Matsushita Electric Works Ltd Signal processing circuit for fire senfor
JPS5580199A (en) * 1978-12-11 1980-06-17 Matsushita Electric Ind Co Ltd Smoke sensor
JPS5619440A (en) * 1979-07-26 1981-02-24 Matsushita Electric Ind Co Ltd Photoelectric smoke detector
JPS57180234A (en) * 1981-04-30 1982-11-06 Tokyo Juki Ind Co Ltd Malfunction preventing circuit for photodetector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53105197A (en) * 1977-02-24 1978-09-13 Matsushita Electric Works Ltd Signal processing circuit for fire senfor
JPS5580199A (en) * 1978-12-11 1980-06-17 Matsushita Electric Ind Co Ltd Smoke sensor
JPS5619440A (en) * 1979-07-26 1981-02-24 Matsushita Electric Ind Co Ltd Photoelectric smoke detector
JPS57180234A (en) * 1981-04-30 1982-11-06 Tokyo Juki Ind Co Ltd Malfunction preventing circuit for photodetector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999030132A1 (en) * 1997-12-09 1999-06-17 Matsushita Electric Industrial Co., Ltd. Angle-of-rotation measuring instrument urine analysis method
JP2021157743A (ja) * 2020-03-30 2021-10-07 能美防災株式会社 炎検知システム

Also Published As

Publication number Publication date
JPH057760B2 (enrdf_load_html_response) 1993-01-29

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