JPS52103998A - Smoke detection device - Google Patents

Smoke detection device

Info

Publication number
JPS52103998A
JPS52103998A JP2036676A JP2036676A JPS52103998A JP S52103998 A JPS52103998 A JP S52103998A JP 2036676 A JP2036676 A JP 2036676A JP 2036676 A JP2036676 A JP 2036676A JP S52103998 A JPS52103998 A JP S52103998A
Authority
JP
Japan
Prior art keywords
detection device
smoke detection
component
light
sticking
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.)
Pending
Application number
JP2036676A
Other languages
Japanese (ja)
Inventor
Sumio Kondo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2036676A priority Critical patent/JPS52103998A/en
Publication of JPS52103998A publication Critical patent/JPS52103998A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE: To prevent wrong warning caused by sticking of dust to light emitting component or light receiving component, by selecting the time constant after installing the differentiation circuit on back of the light sensing component.
COPYRIGHT: (C)1977,JPO&Japio
JP2036676A 1976-02-26 1976-02-26 Smoke detection device Pending JPS52103998A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2036676A JPS52103998A (en) 1976-02-26 1976-02-26 Smoke detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2036676A JPS52103998A (en) 1976-02-26 1976-02-26 Smoke detection device

Publications (1)

Publication Number Publication Date
JPS52103998A true JPS52103998A (en) 1977-08-31

Family

ID=12025073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2036676A Pending JPS52103998A (en) 1976-02-26 1976-02-26 Smoke detection device

Country Status (1)

Country Link
JP (1) JPS52103998A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110942583A (en) * 2018-09-21 2020-03-31 中国移动通信有限公司研究院 Method, device and terminal for reporting smoke alarm

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4864977A (en) * 1971-12-09 1973-09-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4864977A (en) * 1971-12-09 1973-09-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110942583A (en) * 2018-09-21 2020-03-31 中国移动通信有限公司研究院 Method, device and terminal for reporting smoke alarm

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