JPS5524355A - High voltage metal vapor discharge lamp - Google Patents

High voltage metal vapor discharge lamp

Info

Publication number
JPS5524355A
JPS5524355A JP9696978A JP9696978A JPS5524355A JP S5524355 A JPS5524355 A JP S5524355A JP 9696978 A JP9696978 A JP 9696978A JP 9696978 A JP9696978 A JP 9696978A JP S5524355 A JPS5524355 A JP S5524355A
Authority
JP
Japan
Prior art keywords
inert gas
luminous tube
outer tube
discharge lamp
filled
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
JP9696978A
Other languages
Japanese (ja)
Inventor
Shoji Origasa
Akinori Ozaki
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 JP9696978A priority Critical patent/JPS5524355A/en
Publication of JPS5524355A publication Critical patent/JPS5524355A/en
Pending legal-status Critical Current

Links

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE: To facilitate the work of manufacture, with a short-circuit fault prevented as well between external leads, with a removal of protection film at both ends of the luminous tube made capable and an efficiency during the initial and operation process improved, by means of filling an inert gas of specific pressure into the outer tube.
CONSTITUTION: In an outer tube 1 of the gas discharge lamp, having an auxiliary pole 4 in a luminous tube 2', is filled an inert gas of pressure 50 to 300 torr at normal temperature. For instance, the quartz made luminous tube 2', with a main electrode 13, 15 and auxiliary pole 4 provided and a vaporing metal 16 filled, is provided in the outer tube 1 made of transparent hard glass. In the outer tube 1 of small input power high voltage metal vapor discharge lamp, is filled an inert gas 3 as described in the above. In this way, the inert gas 3 suppresses an action to cool the heat generated by the luminous tube 2', causing no generation of collection of the vaporing metal at the coolest portion even for a protection film not being provided at the both ends of the luminous tube 2', with a lighting efficiency improved to prevent a short-circuit fault caused by an oxidation of external lead wires 8, 11, 21 when forming the protection film, simultaneously with the work of manufacture facilitated.
COPYRIGHT: (C)1980,JPO&Japio
JP9696978A 1978-08-09 1978-08-09 High voltage metal vapor discharge lamp Pending JPS5524355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9696978A JPS5524355A (en) 1978-08-09 1978-08-09 High voltage metal vapor discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9696978A JPS5524355A (en) 1978-08-09 1978-08-09 High voltage metal vapor discharge lamp

Publications (1)

Publication Number Publication Date
JPS5524355A true JPS5524355A (en) 1980-02-21

Family

ID=14179048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9696978A Pending JPS5524355A (en) 1978-08-09 1978-08-09 High voltage metal vapor discharge lamp

Country Status (1)

Country Link
JP (1) JPS5524355A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57117556U (en) * 1980-12-15 1982-07-21
DE3504931A1 (en) * 1984-02-14 1985-08-14 Hitachi, Ltd., Tokio/Tokyo DISCHARGE LAMP
EP0678901A1 (en) * 1994-04-21 1995-10-25 General Electric Company Filament lamp
JP2003168391A (en) * 2001-09-20 2003-06-13 Koito Mfg Co Ltd Mercury-free arc tube for discharge lamp device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57117556U (en) * 1980-12-15 1982-07-21
DE3504931A1 (en) * 1984-02-14 1985-08-14 Hitachi, Ltd., Tokio/Tokyo DISCHARGE LAMP
EP0678901A1 (en) * 1994-04-21 1995-10-25 General Electric Company Filament lamp
JP2003168391A (en) * 2001-09-20 2003-06-13 Koito Mfg Co Ltd Mercury-free arc tube for discharge lamp device

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