JPS56168321A - Exhaust device of luminous tube - Google Patents

Exhaust device of luminous tube

Info

Publication number
JPS56168321A
JPS56168321A JP7204480A JP7204480A JPS56168321A JP S56168321 A JPS56168321 A JP S56168321A JP 7204480 A JP7204480 A JP 7204480A JP 7204480 A JP7204480 A JP 7204480A JP S56168321 A JPS56168321 A JP S56168321A
Authority
JP
Japan
Prior art keywords
luminous tube
rare gas
valve
exhausting
exhaust system
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
JP7204480A
Other languages
Japanese (ja)
Inventor
Yoshinori Takai
Masato Saito
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 JP7204480A priority Critical patent/JPS56168321A/en
Publication of JPS56168321A publication Critical patent/JPS56168321A/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
    • H01J9/385—Exhausting 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 prevent a rise of starting voltage due to impurities, by connecting an exhaust means having pumping effect without exhausting rare gas to a portion of an exhaust system. CONSTITUTION:A pump 14 not exhausting rare gas is arranged in a portion of the exhaust system B of a luminous tube 9. In the case of exhausting the inside of the luminous tube 9, after opening a leak valve 11 and leading dry rare gas into the exhaust system B until its pressure balances with the atmospheric pressure, the luminous tube 9 is set on a connecting mouth 12, and the leak valve 11 is closed. Next, after opening a vacuum valve 8, the exhaust system B is liminarily exacutated with an oil rotary pump 10, and after the effect of decompression approaches to predetermined pressure, the vacuum value 4 is opened. Then, after exhausting gas by heating the luminous tube 9, an enclosure is enclosed, and the vacuum valve 4 is closed. After that, a valve 15 opened and the pump 14 is put in operation, while rare gas is enclosed by opening a rare gas lead in valve 7, and the exhaust port of the luminous tube 9 is cut by melting.
JP7204480A 1980-05-29 1980-05-29 Exhaust device of luminous tube Pending JPS56168321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7204480A JPS56168321A (en) 1980-05-29 1980-05-29 Exhaust device of luminous tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7204480A JPS56168321A (en) 1980-05-29 1980-05-29 Exhaust device of luminous tube

Publications (1)

Publication Number Publication Date
JPS56168321A true JPS56168321A (en) 1981-12-24

Family

ID=13477996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7204480A Pending JPS56168321A (en) 1980-05-29 1980-05-29 Exhaust device of luminous tube

Country Status (1)

Country Link
JP (1) JPS56168321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499939A (en) * 1993-12-22 1996-03-19 Futaba Denshi Kogyo K.K. Evacuation apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499939A (en) * 1993-12-22 1996-03-19 Futaba Denshi Kogyo K.K. Evacuation apparatus

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