JPS5721049A - Manufacturing method of circular fluorescent lamp - Google Patents

Manufacturing method of circular fluorescent lamp

Info

Publication number
JPS5721049A
JPS5721049A JP9548680A JP9548680A JPS5721049A JP S5721049 A JPS5721049 A JP S5721049A JP 9548680 A JP9548680 A JP 9548680A JP 9548680 A JP9548680 A JP 9548680A JP S5721049 A JPS5721049 A JP S5721049A
Authority
JP
Japan
Prior art keywords
interval
heads
adjoining
positions
range
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
JP9548680A
Other languages
Japanese (ja)
Inventor
Yoichi Ikeuchi
Akira Maeda
Toshiteru Tomita
Naomichi Kumagai
Osamu Matsubara
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.)
NIPPON DENKI SYLVANIA KK
NEC Home Electronics Ltd
Original Assignee
NIPPON DENKI SYLVANIA KK
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 NIPPON DENKI SYLVANIA KK, NEC Home Electronics Ltd filed Critical NIPPON DENKI SYLVANIA KK
Priority to JP9548680A priority Critical patent/JPS5721049A/en
Publication of JPS5721049A publication Critical patent/JPS5721049A/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
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
    • H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps
    • 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)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To heat each linear bulb uniformly without thermal influence of the heating means for adjoining linear bulbs by making the interval of double heads to be equal while specifying the pitch between the heads in particular range. CONSTITUTION:The interval l1 between a pair of heads 11a, 11b fixed at many positions or 24 positions, for example, on the circumference of a carrying member or turn table 10 is set in such range as the bulb held by said head is scarcely influenced by the heat from adjoining heaters or in the range of 250-500mm.. While the interval of the position or the interval l2 between the centers of the heads 11a, 11b of adjoining positions is set to be same or wider than the interval l1.
JP9548680A 1980-07-11 1980-07-11 Manufacturing method of circular fluorescent lamp Pending JPS5721049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9548680A JPS5721049A (en) 1980-07-11 1980-07-11 Manufacturing method of circular fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9548680A JPS5721049A (en) 1980-07-11 1980-07-11 Manufacturing method of circular fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS5721049A true JPS5721049A (en) 1982-02-03

Family

ID=14138926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9548680A Pending JPS5721049A (en) 1980-07-11 1980-07-11 Manufacturing method of circular fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5721049A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102875012A (en) * 2012-10-10 2013-01-16 临安钱氏照明电器有限公司 Energy-saving type improved method for heating apparatus of disc automatic pipebender

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51392A (en) * 1974-06-19 1976-01-06 Nisshin Steel Co Ltd METSUKIFURYOKENSAHOHO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51392A (en) * 1974-06-19 1976-01-06 Nisshin Steel Co Ltd METSUKIFURYOKENSAHOHO

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102875012A (en) * 2012-10-10 2013-01-16 临安钱氏照明电器有限公司 Energy-saving type improved method for heating apparatus of disc automatic pipebender

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