JPS5468085A - Preparation of tube type incandescent lamp - Google Patents

Preparation of tube type incandescent lamp

Info

Publication number
JPS5468085A
JPS5468085A JP13423077A JP13423077A JPS5468085A JP S5468085 A JPS5468085 A JP S5468085A JP 13423077 A JP13423077 A JP 13423077A JP 13423077 A JP13423077 A JP 13423077A JP S5468085 A JPS5468085 A JP S5468085A
Authority
JP
Japan
Prior art keywords
filament
bulb
sealed
heating
end portion
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
JP13423077A
Other languages
Japanese (ja)
Other versions
JPS6038823B2 (en
Inventor
Jun Ogi
Katsushige Suzuki
Yukio Nefu
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 JP13423077A priority Critical patent/JPS6038823B2/en
Publication of JPS5468085A publication Critical patent/JPS5468085A/en
Publication of JPS6038823B2 publication Critical patent/JPS6038823B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the turbulence of the distribution characteristic of light and the deformation of a filament, by sealing the filament after uniformly prolonging it.
CONSTITUTION: One end portion of a bulb 1 is blocked by a blockade body 8 while holding a filament 2 consisting of alternative luminous portions 3 and non-luminous portions 4 at right locations, the other end portion of the bulb 1 is crush sealed by heating it by means of an oxyhydrogen burner 7, etc. while preventing the oxidation of an external leading-in wire 6, etc. by feeding inactive gas into the bulb 1 from an exhaust tube 9, metallic foil 5 and the external leading-in wire 6 are sealed, the bulb 1 is inverted, the filament 2 is conduction heated, and the other end portion is crush sealed by heating it by means of the burner 7, etc. while being provided with tension by prolongation, thus completing the sealing of the filament 2. Consequently, the whole yield point of the filament 2 uniformly lowers by heating, thus preventing the local deformation of the filament 2 in the case when the other end porton is sealed.
COPYRIGHT: (C)1979,JPO&Japio
JP13423077A 1977-11-09 1977-11-09 Manufacturing method of tube-shaped incandescent light bulb Expired JPS6038823B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13423077A JPS6038823B2 (en) 1977-11-09 1977-11-09 Manufacturing method of tube-shaped incandescent light bulb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13423077A JPS6038823B2 (en) 1977-11-09 1977-11-09 Manufacturing method of tube-shaped incandescent light bulb

Publications (2)

Publication Number Publication Date
JPS5468085A true JPS5468085A (en) 1979-05-31
JPS6038823B2 JPS6038823B2 (en) 1985-09-03

Family

ID=15123457

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13423077A Expired JPS6038823B2 (en) 1977-11-09 1977-11-09 Manufacturing method of tube-shaped incandescent light bulb

Country Status (1)

Country Link
JP (1) JPS6038823B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01186548A (en) * 1988-01-13 1989-07-26 Ushio Inc Manufacture of tubular incandescent lamp
KR970071900A (en) * 1996-04-10 1997-11-07 유미코 니시보리 Double end type halogen lamp and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01186548A (en) * 1988-01-13 1989-07-26 Ushio Inc Manufacture of tubular incandescent lamp
KR970071900A (en) * 1996-04-10 1997-11-07 유미코 니시보리 Double end type halogen lamp and manufacturing method thereof

Also Published As

Publication number Publication date
JPS6038823B2 (en) 1985-09-03

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