JPS57202639A - High pressure sodium lamp - Google Patents

High pressure sodium lamp

Info

Publication number
JPS57202639A
JPS57202639A JP8843481A JP8843481A JPS57202639A JP S57202639 A JPS57202639 A JP S57202639A JP 8843481 A JP8843481 A JP 8843481A JP 8843481 A JP8843481 A JP 8843481A JP S57202639 A JPS57202639 A JP S57202639A
Authority
JP
Japan
Prior art keywords
tube
starting
high pressure
pressure sodium
sodium 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.)
Pending
Application number
JP8843481A
Other languages
Japanese (ja)
Inventor
Katsuya Otani
Keiji Watabe
Masahiro Dobashi
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 JP8843481A priority Critical patent/JPS57202639A/en
Publication of JPS57202639A publication Critical patent/JPS57202639A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE:To contrive reduction of the starting voltage of a lght emission lamp by using a ceramic material for the light emission tube and taking one of electrodes inside the tube as a filament, and by providing starting auxiliaries made of heat resisting metal on the outer periphery of the tube. CONSTITUTION:Na and Hg are enclosed into a ceramic light emission tube with the Xe gas of 20Torr inside the tube, and one of electrodes inside the tube is taken as a filament and starting auxiliaries made of heat resisting metal are provided on the outer periphery of the tube. Hereby, it is capcable of largely reducing the starting voltage.
JP8843481A 1981-06-09 1981-06-09 High pressure sodium lamp Pending JPS57202639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8843481A JPS57202639A (en) 1981-06-09 1981-06-09 High pressure sodium lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8843481A JPS57202639A (en) 1981-06-09 1981-06-09 High pressure sodium lamp

Publications (1)

Publication Number Publication Date
JPS57202639A true JPS57202639A (en) 1982-12-11

Family

ID=13942684

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8843481A Pending JPS57202639A (en) 1981-06-09 1981-06-09 High pressure sodium lamp

Country Status (1)

Country Link
JP (1) JPS57202639A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5287569A (en) * 1976-01-19 1977-07-21 Toyota Motor Corp Automatic transmission for vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5287569A (en) * 1976-01-19 1977-07-21 Toyota Motor Corp Automatic transmission for vehicle

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