JPS5289285A - Incandescent lamp - Google Patents

Incandescent lamp

Info

Publication number
JPS5289285A
JPS5289285A JP542776A JP542776A JPS5289285A JP S5289285 A JPS5289285 A JP S5289285A JP 542776 A JP542776 A JP 542776A JP 542776 A JP542776 A JP 542776A JP S5289285 A JPS5289285 A JP S5289285A
Authority
JP
Japan
Prior art keywords
incandescent lamp
time
bulb wall
blacking
filament
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
JP542776A
Other languages
Japanese (ja)
Inventor
Makoto Oyamada
Atsushi Saida
Yosuke Hirao
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 JP542776A priority Critical patent/JPS5289285A/en
Publication of JPS5289285A publication Critical patent/JPS5289285A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To minimize the change in the luminous flux with the passage of time by lowering the minimum temperature portion of the bulb wall at the time of lighting so that the corrosion of filament, supporting members thereof, and inner conductor is controlled for minimizing blacking of the bulb wall.
COPYRIGHT: (C)1977,JPO&Japio
JP542776A 1976-01-22 1976-01-22 Incandescent lamp Pending JPS5289285A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP542776A JPS5289285A (en) 1976-01-22 1976-01-22 Incandescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP542776A JPS5289285A (en) 1976-01-22 1976-01-22 Incandescent lamp

Publications (1)

Publication Number Publication Date
JPS5289285A true JPS5289285A (en) 1977-07-26

Family

ID=11610864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP542776A Pending JPS5289285A (en) 1976-01-22 1976-01-22 Incandescent lamp

Country Status (1)

Country Link
JP (1) JPS5289285A (en)

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