JPS54142879A - High voltage vapor discharge lamp - Google Patents

High voltage vapor discharge lamp

Info

Publication number
JPS54142879A
JPS54142879A JP11269475A JP11269475A JPS54142879A JP S54142879 A JPS54142879 A JP S54142879A JP 11269475 A JP11269475 A JP 11269475A JP 11269475 A JP11269475 A JP 11269475A JP S54142879 A JPS54142879 A JP S54142879A
Authority
JP
Japan
Prior art keywords
discharge lamp
high voltage
vapor discharge
electrodes
light emitting
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
JP11269475A
Other languages
Japanese (ja)
Inventor
Mikiya Yamane
Kunihiko Takahashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11269475A priority Critical patent/JPS54142879A/en
Publication of JPS54142879A publication Critical patent/JPS54142879A/en
Pending legal-status Critical Current

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  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE: To provide a high voltage vapor discharge lamp which lowers its firing start voltage, reduces irregularity and stabilizes its quality by regulating the interval between the central shaft and supporting wire of a transparent ceramic light emitting tube.
CONSTITUTION: Electrodes 2a, 2b are sealed via metallic caps 3a, 3b, respectively of niobium or the like at both ends of a light emitting tube 1 of transparent ceramic filled with sodium, mercury and inert gas to support the electrodes 2a, 2b by the caps 3a, 3b. There are disposed the central shaft of the tube 1 and a supporting wire 4 connected to the metallic cap 3a so that the interval therebetween is within 11mm. Thus, it can sufficiently recuce the firing start voltage. It can also simplify the construction adapted for mass production.
COPYRIGHT: (C)1979,JPO&Japio
JP11269475A 1975-09-19 1975-09-19 High voltage vapor discharge lamp Pending JPS54142879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11269475A JPS54142879A (en) 1975-09-19 1975-09-19 High voltage vapor discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11269475A JPS54142879A (en) 1975-09-19 1975-09-19 High voltage vapor discharge lamp

Publications (1)

Publication Number Publication Date
JPS54142879A true JPS54142879A (en) 1979-11-07

Family

ID=14593137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11269475A Pending JPS54142879A (en) 1975-09-19 1975-09-19 High voltage vapor discharge lamp

Country Status (1)

Country Link
JP (1) JPS54142879A (en)

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