JPS5438678A - Illuminating device - Google Patents

Illuminating device

Info

Publication number
JPS5438678A
JPS5438678A JP10457777A JP10457777A JPS5438678A JP S5438678 A JPS5438678 A JP S5438678A JP 10457777 A JP10457777 A JP 10457777A JP 10457777 A JP10457777 A JP 10457777A JP S5438678 A JPS5438678 A JP S5438678A
Authority
JP
Japan
Prior art keywords
illuminating device
lighting period
illuminating
filaments
displayed
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
JP10457777A
Other languages
Japanese (ja)
Inventor
Eizo Goto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10457777A priority Critical patent/JPS5438678A/en
Publication of JPS5438678A publication Critical patent/JPS5438678A/en
Pending legal-status Critical Current

Links

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

PURPOSE: To provide an illuminating device wherein two filaments are provided in a lamp bulb, and an intermittent current in which the ratio of the lighting period to non-lighting period is 2:1, is caused to flow with a deflected phase, thereby both illuminating and flashing functions being displayed without changing the color temperature.
COPYRIGHT: (C)1979,JPO&Japio
JP10457777A 1977-08-31 1977-08-31 Illuminating device Pending JPS5438678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10457777A JPS5438678A (en) 1977-08-31 1977-08-31 Illuminating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10457777A JPS5438678A (en) 1977-08-31 1977-08-31 Illuminating device

Publications (1)

Publication Number Publication Date
JPS5438678A true JPS5438678A (en) 1979-03-23

Family

ID=14384282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10457777A Pending JPS5438678A (en) 1977-08-31 1977-08-31 Illuminating device

Country Status (1)

Country Link
JP (1) JPS5438678A (en)

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