JPH0342535Y2 - - Google Patents

Info

Publication number
JPH0342535Y2
JPH0342535Y2 JP1979010117U JP1011779U JPH0342535Y2 JP H0342535 Y2 JPH0342535 Y2 JP H0342535Y2 JP 1979010117 U JP1979010117 U JP 1979010117U JP 1011779 U JP1011779 U JP 1011779U JP H0342535 Y2 JPH0342535 Y2 JP H0342535Y2
Authority
JP
Japan
Prior art keywords
phototransistor
light
optical system
receiving element
circuit
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
Application number
JP1979010117U
Other languages
English (en)
Japanese (ja)
Other versions
JPS55112793U (enrdf_load_stackoverflow
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 JP1979010117U priority Critical patent/JPH0342535Y2/ja
Publication of JPS55112793U publication Critical patent/JPS55112793U/ja
Application granted granted Critical
Publication of JPH0342535Y2 publication Critical patent/JPH0342535Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
JP1979010117U 1979-01-31 1979-01-31 Expired JPH0342535Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1979010117U JPH0342535Y2 (enrdf_load_stackoverflow) 1979-01-31 1979-01-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1979010117U JPH0342535Y2 (enrdf_load_stackoverflow) 1979-01-31 1979-01-31

Publications (2)

Publication Number Publication Date
JPS55112793U JPS55112793U (enrdf_load_stackoverflow) 1980-08-08
JPH0342535Y2 true JPH0342535Y2 (enrdf_load_stackoverflow) 1991-09-05

Family

ID=28822119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1979010117U Expired JPH0342535Y2 (enrdf_load_stackoverflow) 1979-01-31 1979-01-31

Country Status (1)

Country Link
JP (1) JPH0342535Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS55112793U (enrdf_load_stackoverflow) 1980-08-08

Similar Documents

Publication Publication Date Title
US4551654A (en) Lighting control system and method
JPS63166118A (ja) 反射型光電スイツチ
US4199753A (en) Integrated circuit for detecting changes in light intensity
US5155353A (en) High dynamic range integrated opto-electronic sensor and MOSFET amplifiers for pulsed light
JPH0342535Y2 (enrdf_load_stackoverflow)
JPH0763854A (ja) レーザー送受光装置
EP0066691A2 (en) Lighting control system and method
JPH0317384B2 (enrdf_load_stackoverflow)
JPH11312281A (ja) 光電式煙感知器
US3974488A (en) Margin test switch for photoelectric intruder detection devices
JP3132871B2 (ja) ビームセンサシステム
KR950004953Y1 (ko) 이형제감지회로
US12270760B2 (en) Masking to eliminate direct line of sight between light emitter and light receiver in a smoke detector
KR100213080B1 (ko) 온도 보상형 적외선 센서 장치
JP2609924B2 (ja) 光センサ回路
JPS59186421A (ja) 光入力装置
JPH061190B2 (ja) パルス信号光電流抜取回路
KR940004104Y1 (ko) 광센서의 외광란 보상회로
JPH026696Y2 (enrdf_load_stackoverflow)
JPH05299999A (ja) 受光回路
JPH05167413A (ja) 反射形光電スイッチ
JPH07312157A (ja) 2線式光電スイッチ及び切替制御回路
SU552630A1 (ru) Устройство дл охранно-пожарной сигнализации
JPH06104460A (ja) 光検出装置
JPS592203B2 (ja) 光電信号増幅器