JPS5763761A - High pressure sodium lamp - Google Patents

High pressure sodium lamp

Info

Publication number
JPS5763761A
JPS5763761A JP13896980A JP13896980A JPS5763761A JP S5763761 A JPS5763761 A JP S5763761A JP 13896980 A JP13896980 A JP 13896980A JP 13896980 A JP13896980 A JP 13896980A JP S5763761 A JPS5763761 A JP S5763761A
Authority
JP
Japan
Prior art keywords
tube
sealed
breakage
titanium
electrodes
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
JP13896980A
Other languages
Japanese (ja)
Inventor
Yoshiro Ogata
Haruo Yamazaki
Takashi Ikeda
Shuzo Akutsu
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics Corp
Matsushita Electric Industrial 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 Matsushita Electronics Corp, Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electronics Corp
Priority to JP13896980A priority Critical patent/JPS5763761A/en
Priority to US06/272,178 priority patent/US4423353A/en
Priority to DE8181104515T priority patent/DE3172126D1/en
Priority to EP81104515A priority patent/EP0042151B1/en
Priority to CA000379839A priority patent/CA1162223A/en
Publication of JPS5763761A publication Critical patent/JPS5763761A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/36Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To eliminate the breakage of sealed part and reduce the cost of a lamp by means of a luminous tube formed by sealing and attaching a metallic tube of titanium or zirconium provided with an electrode on its end, on the innert surface of the end of an alumina tube. CONSTITUTION:Titanium or zirconium metallic tubes 10, 11 are sealed with ceramic cements 12, 13 on the inner surface of both ends of a tube 3 constituted of alumina single crystal, and electrodes 14, 15 are provided on the ends of the metallic tubes 10, 11. Sodium amalgam 16 and neon-argon penning gas are sealed in the tube 3 to form a liminous tube. Thus, the heat generated from the electrodes 14, 15 are conducted to the ends of the luminous tube readily, resulting in the rapid elevation of the coldest temperature at the ends and the elimination of the breakage of ends of a luminous tube, and furthermore the cost is reduced greatly because costly parts such as niobium or tantalum are not required for use.
JP13896980A 1980-06-17 1980-10-03 High pressure sodium lamp Pending JPS5763761A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP13896980A JPS5763761A (en) 1980-10-03 1980-10-03 High pressure sodium lamp
US06/272,178 US4423353A (en) 1980-06-17 1981-06-10 High-pressure sodium lamp
DE8181104515T DE3172126D1 (en) 1980-06-17 1981-06-11 High-pressure sodium lamp
EP81104515A EP0042151B1 (en) 1980-06-17 1981-06-11 High-pressure sodium lamp
CA000379839A CA1162223A (en) 1980-06-17 1981-06-16 High-pressure sodium lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13896980A JPS5763761A (en) 1980-10-03 1980-10-03 High pressure sodium lamp

Publications (1)

Publication Number Publication Date
JPS5763761A true JPS5763761A (en) 1982-04-17

Family

ID=15234401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13896980A Pending JPS5763761A (en) 1980-06-17 1980-10-03 High pressure sodium lamp

Country Status (1)

Country Link
JP (1) JPS5763761A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3541211A1 (en) * 1985-05-16 1986-11-20 Ushio Denki K.K., Tokio/Tokyo DC POWER CHARGE LAMP

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3541211A1 (en) * 1985-05-16 1986-11-20 Ushio Denki K.K., Tokio/Tokyo DC POWER CHARGE LAMP

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