JPS553172A - Method of manufacturing high voltage alkaline metal vapor discharge lamp - Google Patents

Method of manufacturing high voltage alkaline metal vapor discharge lamp

Info

Publication number
JPS553172A
JPS553172A JP7609378A JP7609378A JPS553172A JP S553172 A JPS553172 A JP S553172A JP 7609378 A JP7609378 A JP 7609378A JP 7609378 A JP7609378 A JP 7609378A JP S553172 A JPS553172 A JP S553172A
Authority
JP
Japan
Prior art keywords
electrode
sealing
discharge lamp
high voltage
metal vapor
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
JP7609378A
Other languages
Japanese (ja)
Other versions
JPS6215986B2 (en
Inventor
Katsuya Otani
Norihiko Tanaka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7609378A priority Critical patent/JPS553172A/en
Publication of JPS553172A publication Critical patent/JPS553172A/en
Publication of JPS6215986B2 publication Critical patent/JPS6215986B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE: To eliminate scattering of electron emitting material from an electrode at sealing time by thermally treating the electrode in vacuum at the same or higher temperature as or than heat treating temperature at sealing time of the electrode before sealing step.
CONSTITUTION: After electron emitting materials is coated on the electrode coil of an electrode 3, it is calcined at 1800°C in rare gas atmosphere, and the electrode 3 is then raised at a rate of 100°C./min. to 1500°C. in vacuum atmosphere, and maintained at the same temperature for 10 minutes, then cooled to the room temperature for its heat treatment. This discharge lamp is produced by sealing the electrode thus treated in a schedule of sealing at 1400°C. for 10 minutes, and then treating a lamp fabrication step.
COPYRIGHT: (C)1980,JPO&Japio
JP7609378A 1978-06-23 1978-06-23 Method of manufacturing high voltage alkaline metal vapor discharge lamp Granted JPS553172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7609378A JPS553172A (en) 1978-06-23 1978-06-23 Method of manufacturing high voltage alkaline metal vapor discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7609378A JPS553172A (en) 1978-06-23 1978-06-23 Method of manufacturing high voltage alkaline metal vapor discharge lamp

Publications (2)

Publication Number Publication Date
JPS553172A true JPS553172A (en) 1980-01-10
JPS6215986B2 JPS6215986B2 (en) 1987-04-10

Family

ID=13595223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7609378A Granted JPS553172A (en) 1978-06-23 1978-06-23 Method of manufacturing high voltage alkaline metal vapor discharge lamp

Country Status (1)

Country Link
JP (1) JPS553172A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57144129A (en) * 1981-02-27 1982-09-06 Iseki & Co Ltd Power transmission equipment in tractor
JPS5916724A (en) * 1982-07-21 1984-01-27 Ishikawajima Harima Heavy Ind Co Ltd Controlling method of sheet thickness in calendering process
US5392849A (en) * 1990-09-28 1995-02-28 Matsushita Refrigeration Company Layer-built heat exchanger
US7708054B2 (en) 2003-08-01 2010-05-04 Showa Denko K.K. Heat exchanger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57144129A (en) * 1981-02-27 1982-09-06 Iseki & Co Ltd Power transmission equipment in tractor
JPS5916724A (en) * 1982-07-21 1984-01-27 Ishikawajima Harima Heavy Ind Co Ltd Controlling method of sheet thickness in calendering process
US5392849A (en) * 1990-09-28 1995-02-28 Matsushita Refrigeration Company Layer-built heat exchanger
US7708054B2 (en) 2003-08-01 2010-05-04 Showa Denko K.K. Heat exchanger

Also Published As

Publication number Publication date
JPS6215986B2 (en) 1987-04-10

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