JPH0552559B2 - - Google Patents

Info

Publication number
JPH0552559B2
JPH0552559B2 JP59158631A JP15863184A JPH0552559B2 JP H0552559 B2 JPH0552559 B2 JP H0552559B2 JP 59158631 A JP59158631 A JP 59158631A JP 15863184 A JP15863184 A JP 15863184A JP H0552559 B2 JPH0552559 B2 JP H0552559B2
Authority
JP
Japan
Prior art keywords
light
time
detection means
blocked
light beam
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.)
Expired - Fee Related
Application number
JP59158631A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6139193A (ja
Inventor
Hiroshi Ono
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.)
OOTEC DENSHI KK
OOTETSUKU DENSHI KK
Original Assignee
OOTEC DENSHI KK
OOTETSUKU DENSHI KK
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 OOTEC DENSHI KK, OOTETSUKU DENSHI KK filed Critical OOTEC DENSHI KK
Priority to JP15863184A priority Critical patent/JPS6139193A/ja
Publication of JPS6139193A publication Critical patent/JPS6139193A/ja
Publication of JPH0552559B2 publication Critical patent/JPH0552559B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
JP15863184A 1984-07-31 1984-07-31 光線式警戒装置 Granted JPS6139193A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15863184A JPS6139193A (ja) 1984-07-31 1984-07-31 光線式警戒装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15863184A JPS6139193A (ja) 1984-07-31 1984-07-31 光線式警戒装置

Publications (2)

Publication Number Publication Date
JPS6139193A JPS6139193A (ja) 1986-02-25
JPH0552559B2 true JPH0552559B2 (enrdf_load_stackoverflow) 1993-08-05

Family

ID=15675929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15863184A Granted JPS6139193A (ja) 1984-07-31 1984-07-31 光線式警戒装置

Country Status (1)

Country Link
JP (1) JPS6139193A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0821149B2 (ja) * 1986-04-23 1996-03-04 株式会社日立製作所 セキユリテイ監視システム
JP5393183B2 (ja) * 2009-01-31 2014-01-22 株式会社キーエンス 安全光電スイッチ及びこれを使った安全制御方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60142498A (ja) * 1983-12-28 1985-07-27 オ−テツク電子株式会社 光線式警戒装置

Also Published As

Publication number Publication date
JPS6139193A (ja) 1986-02-25

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees