JPS5469269A - Emergency lamp lighting system - Google Patents

Emergency lamp lighting system

Info

Publication number
JPS5469269A
JPS5469269A JP13573277A JP13573277A JPS5469269A JP S5469269 A JPS5469269 A JP S5469269A JP 13573277 A JP13573277 A JP 13573277A JP 13573277 A JP13573277 A JP 13573277A JP S5469269 A JPS5469269 A JP S5469269A
Authority
JP
Japan
Prior art keywords
light
lamp lighting
light emitting
emergency
switching element
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
JP13573277A
Other languages
Japanese (ja)
Inventor
Masao Nakamichi
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.)
Iwasaki Denki KK
Original Assignee
Iwasaki Denki 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 Iwasaki Denki KK filed Critical Iwasaki Denki KK
Priority to JP13573277A priority Critical patent/JPS5469269A/en
Publication of JPS5469269A publication Critical patent/JPS5469269A/en
Pending legal-status Critical Current

Links

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

PURPOSE:To make the construction of an emergency lamp lighting system and at the same time to improve reliability of it operation, by connecting a semiconductor switching element in the emergency lamp lighting circuit and controlling its operation by means of light emitting and receiving element. CONSTITUTION:In normal condition, light is emitted from light emitting element 27 with connection of Ac power source 21, and light receiving element 28 having received the light from the light emitting element 27 de-energizes semiconductor switching element 29, so that lamp 30 is kept in its OFF-condition and battery 26 is charged by DC current. On the other hand, when power source 21 is disconnected at the time of emergency, semicondutor switching element 29 is energized by the light receiving element 28 so that lamp 30 is turned ON by the current supplied from battery 26. Further, a screen plate 31 is disposed between the above two elements 27 and 28, in the manner that it is moved by pull string 32 to a position capable of screening the light from element 27 temporarily, whereby it is enabled to detect with ease and correctness whether some trouble is caused with the system or not.
JP13573277A 1977-11-14 1977-11-14 Emergency lamp lighting system Pending JPS5469269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13573277A JPS5469269A (en) 1977-11-14 1977-11-14 Emergency lamp lighting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13573277A JPS5469269A (en) 1977-11-14 1977-11-14 Emergency lamp lighting system

Publications (1)

Publication Number Publication Date
JPS5469269A true JPS5469269A (en) 1979-06-04

Family

ID=15158571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13573277A Pending JPS5469269A (en) 1977-11-14 1977-11-14 Emergency lamp lighting system

Country Status (1)

Country Link
JP (1) JPS5469269A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62240454A (en) * 1986-04-10 1987-10-21 Toyota Motor Corp Diesel engine piston
JPS62240459A (en) * 1986-04-11 1987-10-21 Toyota Motor Corp Diesel engine piston
JPS62240456A (en) * 1986-04-10 1987-10-21 Toyota Motor Corp Diesel engine piston
JPS62243948A (en) * 1986-04-15 1987-10-24 Toyota Motor Corp Piston for diesel engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62240454A (en) * 1986-04-10 1987-10-21 Toyota Motor Corp Diesel engine piston
JPS62240456A (en) * 1986-04-10 1987-10-21 Toyota Motor Corp Diesel engine piston
JPS62240459A (en) * 1986-04-11 1987-10-21 Toyota Motor Corp Diesel engine piston
JPS62243948A (en) * 1986-04-15 1987-10-24 Toyota Motor Corp Piston for diesel engine

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