JPS54155672A - High pressure sodium lamp - Google Patents

High pressure sodium lamp

Info

Publication number
JPS54155672A
JPS54155672A JP6360178A JP6360178A JPS54155672A JP S54155672 A JPS54155672 A JP S54155672A JP 6360178 A JP6360178 A JP 6360178A JP 6360178 A JP6360178 A JP 6360178A JP S54155672 A JPS54155672 A JP S54155672A
Authority
JP
Japan
Prior art keywords
bulb
electrode
conductor
wall
auxiliary
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
JP6360178A
Other languages
Japanese (ja)
Inventor
Haruo Yamazaki
Yoshiro Ogata
Shiyuuzou 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
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 filed Critical Matsushita Electronics Corp
Priority to JP6360178A priority Critical patent/JPS54155672A/en
Publication of JPS54155672A publication Critical patent/JPS54155672A/en
Pending legal-status Critical Current

Links

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  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE: To reduce a starting voltage of a lamp which increases xenon seal pressure, by protruding a conductor, which works as an auxiliary electrode at a starting time, toward a bulb inner wall from an outer circumference of the electrode.
CONSTITUTION: A conductor 9, which works as an auxiliary electrode at a starting time with an electrode located facing and opposite to each other, is projected at the inside of an alumina luminous bulb toward a bulb inner wall from an outer circumference of the electrode. An outer auxiliary conductor 8 is connected with one electrode via a bi-metallic switch 10, which is released by the heating of a luminous bulb after the bulb lights on, in order to prevent a loss of sodium at the inside of the bulb. A distance between the end C of a molybdenum bar serving as the auxiliary electrode conductor 9 and the bulb inner wall part (e) must be 0.5 mm. And thus, the production of a kick voltage can be suppressed and a condenser 13, which serves to widen a pulse width of the kick voltage, is also connected.
COPYRIGHT: (C)1979,JPO&Japio
JP6360178A 1978-05-26 1978-05-26 High pressure sodium lamp Pending JPS54155672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6360178A JPS54155672A (en) 1978-05-26 1978-05-26 High pressure sodium lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6360178A JPS54155672A (en) 1978-05-26 1978-05-26 High pressure sodium lamp

Publications (1)

Publication Number Publication Date
JPS54155672A true JPS54155672A (en) 1979-12-07

Family

ID=13233954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6360178A Pending JPS54155672A (en) 1978-05-26 1978-05-26 High pressure sodium lamp

Country Status (1)

Country Link
JP (1) JPS54155672A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5149579A (en) * 1974-10-28 1976-04-28 Hitachi Ltd KOATSUNATORIUM URANPU
JPS5255495A (en) * 1975-10-30 1977-05-06 Hughes Aircraft Co Pressurized gas cooled laser flashing lamp trigger device
JPS5475876A (en) * 1977-11-30 1979-06-18 Toshiba Corp Discharge lamp
JPS5935508A (en) * 1982-08-20 1984-02-27 株式会社東芝 Gas insulated disconnecting switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5149579A (en) * 1974-10-28 1976-04-28 Hitachi Ltd KOATSUNATORIUM URANPU
JPS5255495A (en) * 1975-10-30 1977-05-06 Hughes Aircraft Co Pressurized gas cooled laser flashing lamp trigger device
JPS5475876A (en) * 1977-11-30 1979-06-18 Toshiba Corp Discharge lamp
JPS5935508A (en) * 1982-08-20 1984-02-27 株式会社東芝 Gas insulated disconnecting switch

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