JPS52155100A - I nfrated intrusion alarm - Google Patents

I nfrated intrusion alarm

Info

Publication number
JPS52155100A
JPS52155100A JP7258976A JP7258976A JPS52155100A JP S52155100 A JPS52155100 A JP S52155100A JP 7258976 A JP7258976 A JP 7258976A JP 7258976 A JP7258976 A JP 7258976A JP S52155100 A JPS52155100 A JP S52155100A
Authority
JP
Japan
Prior art keywords
intrusion alarm
nfrated
mirror
dingle
accomplished
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
JP7258976A
Other languages
Japanese (ja)
Inventor
Sho Yasuda
Kimihiko Satake
Shoji Shimamura
Tsukasa Akaboshi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7258976A priority Critical patent/JPS52155100A/en
Publication of JPS52155100A publication Critical patent/JPS52155100A/en
Pending legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)

Abstract

PURPOSE: Intrusion alarm of a wide alert region is accomplished by using a continuously curved dingle reflection mirror and detectors disposed near the focal point of this mirror by mutually differing their positions.
COPYRIGHT: (C)1977,JPO&Japio
JP7258976A 1976-06-18 1976-06-18 I nfrated intrusion alarm Pending JPS52155100A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7258976A JPS52155100A (en) 1976-06-18 1976-06-18 I nfrated intrusion alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7258976A JPS52155100A (en) 1976-06-18 1976-06-18 I nfrated intrusion alarm

Publications (1)

Publication Number Publication Date
JPS52155100A true JPS52155100A (en) 1977-12-23

Family

ID=13493720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7258976A Pending JPS52155100A (en) 1976-06-18 1976-06-18 I nfrated intrusion alarm

Country Status (1)

Country Link
JP (1) JPS52155100A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5463500U (en) * 1977-10-13 1979-05-04
JPS57148288U (en) * 1981-03-12 1982-09-17
JPS59195179A (en) * 1983-04-20 1984-11-06 Uro Denshi Kogyo Kk Alarming device for intruder
JPS6023991A (en) * 1983-05-09 1985-02-06 榎本　正実 Automatic firing and extinguishing lamp illuminator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5463500U (en) * 1977-10-13 1979-05-04
JPS57148288U (en) * 1981-03-12 1982-09-17
JPS59195179A (en) * 1983-04-20 1984-11-06 Uro Denshi Kogyo Kk Alarming device for intruder
JPS6023991A (en) * 1983-05-09 1985-02-06 榎本　正実 Automatic firing and extinguishing lamp illuminator

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