JPS5452882A - Fluorescent lamp manufacturing method and device - Google Patents

Fluorescent lamp manufacturing method and device

Info

Publication number
JPS5452882A
JPS5452882A JP11962277A JP11962277A JPS5452882A JP S5452882 A JPS5452882 A JP S5452882A JP 11962277 A JP11962277 A JP 11962277A JP 11962277 A JP11962277 A JP 11962277A JP S5452882 A JPS5452882 A JP S5452882A
Authority
JP
Japan
Prior art keywords
operated
degassing
bulb
stage
time
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
JP11962277A
Other languages
Japanese (ja)
Other versions
JPS6011416B2 (en
Inventor
Fumio Tanabe
Takao Takeda
Jun Imai
Hiroshi Ito
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP52119622A priority Critical patent/JPS6011416B2/en
Publication of JPS5452882A publication Critical patent/JPS5452882A/en
Publication of JPS6011416B2 publication Critical patent/JPS6011416B2/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 reduce the inert gas injection pressure at the time of flash degassing, and thereby to reduce the time required for degassing, by separating the electrode processing into the first stage and the second stage in which flash degassing is operated.
CONSTITUTION: The pressure in bulb 1 is reduced below 5 Torr and the tube wall temperature is kept within 300°C. Under this condition, electricity is conducted to electrodes 3, 3' by means of No. 1 current supply 9, and dissolution of electrode material 19 is operated. Next, while bulb 1 is being transported inside heating furnace 8, it is heated to 400°W450°C and degassing of fluorescent material 2 is operated adequetly. In the secone stagd, after 15, namely the time when the tube wall temperature in heating furnace reached the maximum to the time immediately before injection gas is supplied to the bulb, electricitiy is conducted again to electrodes 3, 3' by means of No. 2 current supply 14, and impure gas is discharged and the portion not dissolved in the first stage 10 is dissolved and activation is operated
COPYRIGHT: (C)1979,JPO&Japio
JP52119622A 1977-10-05 1977-10-05 Method of manufacturing fluorescent lamps Expired JPS6011416B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52119622A JPS6011416B2 (en) 1977-10-05 1977-10-05 Method of manufacturing fluorescent lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52119622A JPS6011416B2 (en) 1977-10-05 1977-10-05 Method of manufacturing fluorescent lamps

Publications (2)

Publication Number Publication Date
JPS5452882A true JPS5452882A (en) 1979-04-25
JPS6011416B2 JPS6011416B2 (en) 1985-03-26

Family

ID=14765987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52119622A Expired JPS6011416B2 (en) 1977-10-05 1977-10-05 Method of manufacturing fluorescent lamps

Country Status (1)

Country Link
JP (1) JPS6011416B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03184232A (en) * 1989-12-14 1991-08-12 Matsushita Electron Corp Manufacture of fluorescent lamp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0160508U (en) * 1987-10-14 1989-04-17

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145755A (en) * 1974-10-18 1976-04-19 Matsushita Electric Industrial Co Ltd Insatsuhimakuteikonoseizoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145755A (en) * 1974-10-18 1976-04-19 Matsushita Electric Industrial Co Ltd Insatsuhimakuteikonoseizoho

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03184232A (en) * 1989-12-14 1991-08-12 Matsushita Electron Corp Manufacture of fluorescent lamp

Also Published As

Publication number Publication date
JPS6011416B2 (en) 1985-03-26

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