JPS5641645A - Manufacture of electric-discharge lamp - Google Patents

Manufacture of electric-discharge lamp

Info

Publication number
JPS5641645A
JPS5641645A JP11707879A JP11707879A JPS5641645A JP S5641645 A JPS5641645 A JP S5641645A JP 11707879 A JP11707879 A JP 11707879A JP 11707879 A JP11707879 A JP 11707879A JP S5641645 A JPS5641645 A JP S5641645A
Authority
JP
Japan
Prior art keywords
gas
discharge
charged
radiation
commencing
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
JP11707879A
Other languages
Japanese (ja)
Inventor
Koichi Miyazaki
Takashi Komaki
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 JP11707879A priority Critical patent/JPS5641645A/en
Publication of JPS5641645A publication Critical patent/JPS5641645A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/395—Filling vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To enable to light electric-discharge lamps by a same discharge-commencing potential and equalize the quality of the lamps electrodes until just before the gas is charged, adjusting under the same conditions the gas pressure to be charged, detecting the initiation of a discharge, and determining the pressure of gas to be charged. CONSTITUTION:A power source 6 is connected with main electrodes 2, 2 through an adequate load resistance 5, and a fixed voltage is applied. An exhaust pipe 4 is connected airtightly with a supply passage 8 of a charging gas, and this supply passage 8 is connected with a source of supply of a rare gas for starting such as argon and so on, for example, a bomb 9. On the other hand, a radiation detector such as a phototransistor 11 or the like is arranged near a luminous tube 1, and connected with an electromagnetic valve 10 electrically through an amplifier 12. The electromagnetic valve 10 is opened when the transistor 11 receives the radiation of the luminous tube 1, and is shut when the radiation stops. Accordingly, the discharge-commencing potential becomes always the same, and the quality can be equalized.
JP11707879A 1979-09-12 1979-09-12 Manufacture of electric-discharge lamp Pending JPS5641645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11707879A JPS5641645A (en) 1979-09-12 1979-09-12 Manufacture of electric-discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11707879A JPS5641645A (en) 1979-09-12 1979-09-12 Manufacture of electric-discharge lamp

Publications (1)

Publication Number Publication Date
JPS5641645A true JPS5641645A (en) 1981-04-18

Family

ID=14702848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11707879A Pending JPS5641645A (en) 1979-09-12 1979-09-12 Manufacture of electric-discharge lamp

Country Status (1)

Country Link
JP (1) JPS5641645A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2724486A1 (en) * 1994-09-13 1996-03-15 Aupem Sefli Process for evacuation and filling of glass tube for illuminated signs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2724486A1 (en) * 1994-09-13 1996-03-15 Aupem Sefli Process for evacuation and filling of glass tube for illuminated signs

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