JPS52123578A - Manufacturing method of annular fluorescent lamp - Google Patents

Manufacturing method of annular fluorescent lamp

Info

Publication number
JPS52123578A
JPS52123578A JP3958876A JP3958876A JPS52123578A JP S52123578 A JPS52123578 A JP S52123578A JP 3958876 A JP3958876 A JP 3958876A JP 3958876 A JP3958876 A JP 3958876A JP S52123578 A JPS52123578 A JP S52123578A
Authority
JP
Japan
Prior art keywords
fluorescent lamp
annular fluorescent
manufacturing
lamp
deform
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.)
Granted
Application number
JP3958876A
Other languages
Japanese (ja)
Other versions
JPS5837933B2 (en
Inventor
Akimasa Kondo
Noriyoshi Kikuchi
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 JP3958876A priority Critical patent/JPS5837933B2/en
Publication of JPS52123578A publication Critical patent/JPS52123578A/en
Publication of JPS5837933B2 publication Critical patent/JPS5837933B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE: To provide an annular fluorescent lamp which does not deform in flat elliptical shape on the tubular section in thin thickness by eliminating local elongation of the lamp by selecting suitably the glass tube wall temperature.
COPYRIGHT: (C)1977,JPO&Japio
JP3958876A 1976-04-08 1976-04-08 Manufacturing method of circular fluorescent lamp Expired JPS5837933B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3958876A JPS5837933B2 (en) 1976-04-08 1976-04-08 Manufacturing method of circular fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3958876A JPS5837933B2 (en) 1976-04-08 1976-04-08 Manufacturing method of circular fluorescent lamp

Publications (2)

Publication Number Publication Date
JPS52123578A true JPS52123578A (en) 1977-10-17
JPS5837933B2 JPS5837933B2 (en) 1983-08-19

Family

ID=12557252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3958876A Expired JPS5837933B2 (en) 1976-04-08 1976-04-08 Manufacturing method of circular fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5837933B2 (en)

Also Published As

Publication number Publication date
JPS5837933B2 (en) 1983-08-19

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