JPH0184183U - - Google Patents

Info

Publication number
JPH0184183U
JPH0184183U JP1987176971U JP17697187U JPH0184183U JP H0184183 U JPH0184183 U JP H0184183U JP 1987176971 U JP1987176971 U JP 1987176971U JP 17697187 U JP17697187 U JP 17697187U JP H0184183 U JPH0184183 U JP H0184183U
Authority
JP
Japan
Prior art keywords
light
detection device
active optical
predetermined frequency
intruder detection
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
JP1987176971U
Other languages
English (en)
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 filed Critical
Priority to JP1987176971U priority Critical patent/JPH0184183U/ja
Publication of JPH0184183U publication Critical patent/JPH0184183U/ja
Pending legal-status Critical Current

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Landscapes

  • Burglar Alarm Systems (AREA)

Description

【図面の簡単な説明】
第1図はこの発明の一実施例の能動型光式侵入
者検知装置の構成説明図、第2図は周波数Fの設
定可能な範囲を示す模式図である。 (符号の説明)、1……能動型光式侵入者検知
装置、10……光源部、11……発振器、13…
…LED、20……光検出部、21……フオトダ
イオード、24……LPF。
補正 昭63.3.6 図面の簡単な説明を次のように補正する。 明細書第7ページ第5行目の「発明」を、「考
案」に訂正する。

Claims (1)

    【実用新案登録請求の範囲】
  1. 所定周波数Fで変調した光を出射する光源部と
    、その光を検出する光検出部とを有する能動型光
    式侵入者検知装置において、前記所定周波数Fを
    、電灯線周波数fの高調波nf(nは自然数)に
    対してnf±3Hzの範囲外に設定したことを特
    徴とする能動型光式侵入者検知装置。
JP1987176971U 1987-11-20 1987-11-20 Pending JPH0184183U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987176971U JPH0184183U (ja) 1987-11-20 1987-11-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987176971U JPH0184183U (ja) 1987-11-20 1987-11-20

Publications (1)

Publication Number Publication Date
JPH0184183U true JPH0184183U (ja) 1989-06-05

Family

ID=31468661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987176971U Pending JPH0184183U (ja) 1987-11-20 1987-11-20

Country Status (1)

Country Link
JP (1) JPH0184183U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03154198A (ja) * 1989-11-10 1991-07-02 Teiou Tsushin Kogyo Kk 盗難防止システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03154198A (ja) * 1989-11-10 1991-07-02 Teiou Tsushin Kogyo Kk 盗難防止システム

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