JPS55136143A - Manufacture of bent glass tube for fluorescent lamp - Google Patents

Manufacture of bent glass tube for fluorescent lamp

Info

Publication number
JPS55136143A
JPS55136143A JP4458679A JP4458679A JPS55136143A JP S55136143 A JPS55136143 A JP S55136143A JP 4458679 A JP4458679 A JP 4458679A JP 4458679 A JP4458679 A JP 4458679A JP S55136143 A JPS55136143 A JP S55136143A
Authority
JP
Japan
Prior art keywords
tube
glass tube
manufacture
coated
fluorescent lamp
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
JP4458679A
Other languages
Japanese (ja)
Other versions
JPS5851890B2 (en
Inventor
Toshio Tajima
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.)
Sankyo Denki Co Ltd
Original Assignee
Sankyo Denki 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 Sankyo Denki Co Ltd filed Critical Sankyo Denki Co Ltd
Priority to JP4458679A priority Critical patent/JPS5851890B2/en
Publication of JPS55136143A publication Critical patent/JPS55136143A/en
Publication of JPS5851890B2 publication Critical patent/JPS5851890B2/en
Expired 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

Abstract

PURPOSE: To manufacture the title tube easily and correctly while preventing occurrence of cracks by coating a fluorescent substance onto the inside of a glass tube except a bending portion and bending the portion (uncoated portion) into the desired form.
CONSTITUTION: Bending portion A of straight glass tube 1 is specified to predetermined size L, and the inside of portion A is made section B not to be coated. The inside of tube 1 except section B is made sections C to be coated, and sections C are coated with fluorescent substance 2 of desired luminescence. Section B of tube 1 passes through the coating process is bent into the desired form and bending angle by heating with burner 4 or the like to manufacture bent glass tube D. Mouthpieces 5 are then seal-bonded to both ends of tube D as usual to finish a fluorescent lamp.
COPYRIGHT: (C)1980,JPO&Japio
JP4458679A 1979-04-12 1979-04-12 Manufacturing method for bent glass tubes for fluorescent lamps Expired JPS5851890B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4458679A JPS5851890B2 (en) 1979-04-12 1979-04-12 Manufacturing method for bent glass tubes for fluorescent lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4458679A JPS5851890B2 (en) 1979-04-12 1979-04-12 Manufacturing method for bent glass tubes for fluorescent lamps

Publications (2)

Publication Number Publication Date
JPS55136143A true JPS55136143A (en) 1980-10-23
JPS5851890B2 JPS5851890B2 (en) 1983-11-18

Family

ID=12695579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4458679A Expired JPS5851890B2 (en) 1979-04-12 1979-04-12 Manufacturing method for bent glass tubes for fluorescent lamps

Country Status (1)

Country Link
JP (1) JPS5851890B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61127894U (en) * 1985-01-26 1986-08-11

Also Published As

Publication number Publication date
JPS5851890B2 (en) 1983-11-18

Similar Documents

Publication Publication Date Title
JPS55136143A (en) Manufacture of bent glass tube for fluorescent lamp
JPS57115512A (en) Manufacture for optical fiber connector
JPS55105944A (en) Loop fluorescent lamp and its manufacturing method
JPS56119407A (en) Mthod of manufacturing wick used in oil stove
JPS57118342A (en) Manufacture of fluorescent lamp
JPS57196728A (en) Manufacture of base material for optical fiber
JPS5788643A (en) Production of ring type fluorescent lamp
JPS5727947A (en) Glass tube
JPS5519774A (en) Production method of circular flourescent lamp
JPS53100683A (en) Method of producing curved fluorescent lamp
JPS5314983A (en) High coloring fluorescent lamp
JPS53145376A (en) Method of coating bulb with fluorescent substance
JPS56102037A (en) Manufacture of fluorescent lamp
JPS53130530A (en) Coil heater
JPS57130339A (en) Production of turbular fluorescent lamp
JPS551036A (en) Manufacture of fluorescent lamp
JPS5751782A (en) Bent tube type fluorescent lamp
JPS57141841A (en) Manufacture of circular bulb
JPS57118343A (en) Manufacture of fluorescent lamp
JPS5468083A (en) Fluolescent lamp
JPS5571783A (en) Red-light-emitting fluorescent body coated or mixed with pigment
JPS5794564A (en) Manufacture of pipe with high specific elastic modulus
JPS51113378A (en) Method of producing rapid start fluorescent lamps
JPS57134839A (en) Manufacture of bent tubular fluorescent lamp
JPS5251774A (en) Flash discharge lamp