JPS56106346A - Method for exhaustion of outer tube of metal vapor discharge lamp - Google Patents

Method for exhaustion of outer tube of metal vapor discharge lamp

Info

Publication number
JPS56106346A
JPS56106346A JP810780A JP810780A JPS56106346A JP S56106346 A JPS56106346 A JP S56106346A JP 810780 A JP810780 A JP 810780A JP 810780 A JP810780 A JP 810780A JP S56106346 A JPS56106346 A JP S56106346A
Authority
JP
Japan
Prior art keywords
outer tube
exhaustion
heating
bimetal
tube
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
JP810780A
Other languages
Japanese (ja)
Inventor
Masakazu Shibuya
Yujiro Ike
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 JP810780A priority Critical patent/JPS56106346A/en
Publication of JPS56106346A publication Critical patent/JPS56106346A/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)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To prevent the oxidation and breakage of a filament to happen by lighting a luminous tube using a starting means from the outside after a bimetal switch becomes open through heating of the outer tube during an exhaustion of an outer tube. CONSTITUTION:A luminous tube 2, bimetal switch 3, and tungsten filamemt 4 are assembled in an outer tube 1, and the exhaust pipe is connected to a vacuum pump and the inside of the outer tube is exhaused. The outer tube 1 is heated after the exhaustion is continued for a prescribed period. The temperature in the outer tube is increased through the heating, and the inside surface of the outer tube 1, the mount member, and the bimetal 3 are degassed. The bimetal 3 becomes open through the heating, the luminous tube 2 is lighted using a pulse generator 30 provided outside. Thus the oxidation and deformation of a filament are prevented because of no heating in an atmosphere of an inpure gas.
JP810780A 1980-01-26 1980-01-26 Method for exhaustion of outer tube of metal vapor discharge lamp Pending JPS56106346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP810780A JPS56106346A (en) 1980-01-26 1980-01-26 Method for exhaustion of outer tube of metal vapor discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP810780A JPS56106346A (en) 1980-01-26 1980-01-26 Method for exhaustion of outer tube of metal vapor discharge lamp

Publications (1)

Publication Number Publication Date
JPS56106346A true JPS56106346A (en) 1981-08-24

Family

ID=11684065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP810780A Pending JPS56106346A (en) 1980-01-26 1980-01-26 Method for exhaustion of outer tube of metal vapor discharge lamp

Country Status (1)

Country Link
JP (1) JPS56106346A (en)

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