JPS5273575A - Lighting device for emergency and for incandescent lamp - Google Patents

Lighting device for emergency and for incandescent lamp

Info

Publication number
JPS5273575A
JPS5273575A JP50149816A JP14981675A JPS5273575A JP S5273575 A JPS5273575 A JP S5273575A JP 50149816 A JP50149816 A JP 50149816A JP 14981675 A JP14981675 A JP 14981675A JP S5273575 A JPS5273575 A JP S5273575A
Authority
JP
Japan
Prior art keywords
emergency
lighting device
incandescent lamp
power source
lighting
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
JP50149816A
Other languages
Japanese (ja)
Inventor
Shozo Kataoka
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP50149816A priority Critical patent/JPS5273575A/en
Publication of JPS5273575A publication Critical patent/JPS5273575A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To provide a lighting device for emergency. When commercial power source is cut off, multiple incadenscent lamps, whose voltage rating are different, are switched by turn and lighted. Drop of luminous flux in the last stage of emergency lighting can be prevented by con converting power of battery power source efficiently.
COPYRIGHT: (C)1977,JPO&Japio
JP50149816A 1975-12-15 1975-12-15 Lighting device for emergency and for incandescent lamp Pending JPS5273575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50149816A JPS5273575A (en) 1975-12-15 1975-12-15 Lighting device for emergency and for incandescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50149816A JPS5273575A (en) 1975-12-15 1975-12-15 Lighting device for emergency and for incandescent lamp

Publications (1)

Publication Number Publication Date
JPS5273575A true JPS5273575A (en) 1977-06-20

Family

ID=15483320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50149816A Pending JPS5273575A (en) 1975-12-15 1975-12-15 Lighting device for emergency and for incandescent lamp

Country Status (1)

Country Link
JP (1) JPS5273575A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410835A (en) * 1981-04-01 1983-10-18 Zabroski Stanley E Utility emergency lamp and solid state switching and battery charging circuit therefor
US4862038A (en) * 1987-06-08 1989-08-29 Morten John F Automatic relamping system
US4985661A (en) * 1989-09-27 1991-01-15 Lin Yuang Chang Uninterrupted desk lamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410835A (en) * 1981-04-01 1983-10-18 Zabroski Stanley E Utility emergency lamp and solid state switching and battery charging circuit therefor
US4862038A (en) * 1987-06-08 1989-08-29 Morten John F Automatic relamping system
US4985661A (en) * 1989-09-27 1991-01-15 Lin Yuang Chang Uninterrupted desk lamp

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