JPS5788643A - Production of ring type fluorescent lamp - Google Patents

Production of ring type fluorescent lamp

Info

Publication number
JPS5788643A
JPS5788643A JP16516880A JP16516880A JPS5788643A JP S5788643 A JPS5788643 A JP S5788643A JP 16516880 A JP16516880 A JP 16516880A JP 16516880 A JP16516880 A JP 16516880A JP S5788643 A JPS5788643 A JP S5788643A
Authority
JP
Japan
Prior art keywords
exhaust pipe
pipe side
straight bulb
parts
production
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
JP16516880A
Other languages
Japanese (ja)
Other versions
JPS6127333B2 (en
Inventor
Tsutomu Maeda
Mitsuo Mizuguchi
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.)
NEC Home Electronics Ltd
Original Assignee
NEC Home Electronics 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 NEC Home Electronics Ltd filed Critical NEC Home Electronics Ltd
Priority to JP16516880A priority Critical patent/JPS5788643A/en
Publication of JPS5788643A publication Critical patent/JPS5788643A/en
Publication of JPS6127333B2 publication Critical patent/JPS6127333B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/06—Re-forming tubes or rods by bending
    • C03B23/065—Re-forming tubes or rods by bending in only one plane, e.g. for making circular neon tubes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To prevent the undersirable slenderization and the deformation of the diameter and the cross section shape of an exhaust pipe side part respectively, by heating the exhaust pipe side more than the other parts, pressing an inert gas to introduce thereinto, then fabricating said exhaust pipe side in a curved form. CONSTITUTION:A straight bulb 3 is heated, for example, up to about 800 deg.C, while transferring it up to position of a heating furnace 5. Just when the straight bulb 3 comes to the next position x in the heating furnace 5, here, the exhaust pipe side 3n of the straight bulb 3 is heated, for instance, at 850 deg.C. This temperature is higher than that of any other parts. In this case, the heating apparatus 7 such as a burner is used. While the straight bulb 3 moves to the position x, or from the position x to the next position g, an inert gas is pressed to introduce into the straight bulb 3; the diameter of the exhaust pipe side 3n is preparatorily processed larger than that of any other parts, and then the exhaust pipe side is facricated in a curved form.
JP16516880A 1980-11-22 1980-11-22 Production of ring type fluorescent lamp Granted JPS5788643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16516880A JPS5788643A (en) 1980-11-22 1980-11-22 Production of ring type fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16516880A JPS5788643A (en) 1980-11-22 1980-11-22 Production of ring type fluorescent lamp

Publications (2)

Publication Number Publication Date
JPS5788643A true JPS5788643A (en) 1982-06-02
JPS6127333B2 JPS6127333B2 (en) 1986-06-25

Family

ID=15807144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16516880A Granted JPS5788643A (en) 1980-11-22 1980-11-22 Production of ring type fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5788643A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0786798A1 (en) * 1996-01-24 1997-07-30 Matsushita Electric Industrial Co., Ltd. Electrodeless discharge lamp and the manufacturing method thereof
JP2006131466A (en) * 2004-11-08 2006-05-25 Asahi Techno Glass Corp Processing method for bending glass tube and mold for forming the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63170468U (en) * 1987-04-28 1988-11-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0786798A1 (en) * 1996-01-24 1997-07-30 Matsushita Electric Industrial Co., Ltd. Electrodeless discharge lamp and the manufacturing method thereof
US6020690A (en) * 1996-01-24 2000-02-01 Matsushita Electric Industrial Co., Ltd. Electrodeless discharge lamp and the manufacturing method thereof
JP2006131466A (en) * 2004-11-08 2006-05-25 Asahi Techno Glass Corp Processing method for bending glass tube and mold for forming the same

Also Published As

Publication number Publication date
JPS6127333B2 (en) 1986-06-25

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