JPS57101320A - Forming method of bulb encapsulating section - Google Patents

Forming method of bulb encapsulating section

Info

Publication number
JPS57101320A
JPS57101320A JP17653580A JP17653580A JPS57101320A JP S57101320 A JPS57101320 A JP S57101320A JP 17653580 A JP17653580 A JP 17653580A JP 17653580 A JP17653580 A JP 17653580A JP S57101320 A JPS57101320 A JP S57101320A
Authority
JP
Japan
Prior art keywords
glass tube
bulb
section
encapsulating section
encapsulating
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
JP17653580A
Other languages
Japanese (ja)
Other versions
JPH0131663B2 (en
Inventor
Minoru Asao
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.)
Ushio Denki KK
Ushio Inc
Original Assignee
Ushio Denki KK
Ushio Inc
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 Ushio Denki KK, Ushio Inc filed Critical Ushio Denki KK
Priority to JP17653580A priority Critical patent/JPS57101320A/en
Publication of JPS57101320A publication Critical patent/JPS57101320A/en
Publication of JPH0131663B2 publication Critical patent/JPH0131663B2/ja
Granted 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
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/32—Sealing leading-in conductors

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 the distortion at the encapsulating section of a bulb, by standing a glass tube made of the encapsulator material or alumina silicate vertically, then inserting a lead made of molybdenum and thermally fusing the lower end of the glass tube. CONSTITUTION:A hard glass tube made of alumina silicate is employed as the bulb encapsulating material and held such that the tube axis X is vertical, while a guide lead rod 8 made of molybdenum is inserted into the glass tube 4 and supported such that the lead wire 8 will project from the lower end opening 9 of the glass tube 9. Under this state the outer circumferential face at the lower end section 10 of the glass tube 4 is thermally fused under nitrogen gas environment by means of a gas burner 11 to form a bulb encapsulating section 7. Consequently sufficient air-tightness can be maintained without requiring special structure as the conductive member and without causing the distortion of the glass at the bulb encapsulating section.
JP17653580A 1980-12-16 1980-12-16 Forming method of bulb encapsulating section Granted JPS57101320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17653580A JPS57101320A (en) 1980-12-16 1980-12-16 Forming method of bulb encapsulating section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17653580A JPS57101320A (en) 1980-12-16 1980-12-16 Forming method of bulb encapsulating section

Publications (2)

Publication Number Publication Date
JPS57101320A true JPS57101320A (en) 1982-06-23
JPH0131663B2 JPH0131663B2 (en) 1989-06-27

Family

ID=16015298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17653580A Granted JPS57101320A (en) 1980-12-16 1980-12-16 Forming method of bulb encapsulating section

Country Status (1)

Country Link
JP (1) JPS57101320A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062766U (en) * 1983-10-05 1985-05-02 ウシオ電機株式会社 tubular halogen incandescent light bulb

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372389A (en) * 1976-12-08 1978-06-27 Toshiba Corp Incandescent lamp and method of manufacturing the same
JPS54141081A (en) * 1978-04-20 1979-11-01 Philips Nv Bulb

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372389A (en) * 1976-12-08 1978-06-27 Toshiba Corp Incandescent lamp and method of manufacturing the same
JPS54141081A (en) * 1978-04-20 1979-11-01 Philips Nv Bulb

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062766U (en) * 1983-10-05 1985-05-02 ウシオ電機株式会社 tubular halogen incandescent light bulb

Also Published As

Publication number Publication date
JPH0131663B2 (en) 1989-06-27

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