JPS54146481A - High-pressure sodium lamp - Google Patents

High-pressure sodium lamp

Info

Publication number
JPS54146481A
JPS54146481A JP5531478A JP5531478A JPS54146481A JP S54146481 A JPS54146481 A JP S54146481A JP 5531478 A JP5531478 A JP 5531478A JP 5531478 A JP5531478 A JP 5531478A JP S54146481 A JPS54146481 A JP S54146481A
Authority
JP
Japan
Prior art keywords
parts
krypton
xenon
sealed
pressure sodium
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.)
Granted
Application number
JP5531478A
Other languages
Japanese (ja)
Other versions
JPS6254231B2 (en
Inventor
Shiyuuzou Akutsu
Yoshiro Ogata
Haruo Yamazaki
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 JP5531478A priority Critical patent/JPS54146481A/en
Publication of JPS54146481A publication Critical patent/JPS54146481A/en
Publication of JPS6254231B2 publication Critical patent/JPS6254231B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Discharge Lamp (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE: To enable the starting of a high-pressure sodium lamp at a low voltage, by filling the lamp with a start assisting rare gas which is a mixed gas consisting of 100 parts of xenon and 5 to 30 parts of krypton.
CONSTITUTION: End plugs 2, 3 made of alumina ceramic are sealed up with a ceramic cement in both the ends of a light-permeable luminous tube 1 made of polycrystalline alumina ceramic or single-crystal alumina. Niobium tubes 4, 5 are sealed up as electrical current conductors in the end plugs 2, 3. Tungsten coil electrodes 6, 7 filled with an electron emitting substance are held by the niobium tubes. Sodium which is a light emitting substance, mercury which acts as a buffer gas, and the start assisting rare gas which is the mixed gas consisting of 100 parts of xenon and 5 to 30 parts of krypton are filled in the luminous tube 1.
COPYRIGHT: (C)1979,JPO&Japio
JP5531478A 1978-05-09 1978-05-09 High-pressure sodium lamp Granted JPS54146481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5531478A JPS54146481A (en) 1978-05-09 1978-05-09 High-pressure sodium lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5531478A JPS54146481A (en) 1978-05-09 1978-05-09 High-pressure sodium lamp

Publications (2)

Publication Number Publication Date
JPS54146481A true JPS54146481A (en) 1979-11-15
JPS6254231B2 JPS6254231B2 (en) 1987-11-13

Family

ID=12995089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5531478A Granted JPS54146481A (en) 1978-05-09 1978-05-09 High-pressure sodium lamp

Country Status (1)

Country Link
JP (1) JPS54146481A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535494A (en) * 1978-09-05 1980-03-12 Philips Nv Discharge lamp
JPS5665456A (en) * 1979-10-31 1981-06-03 Mitsubishi Electric Corp Metal vapor discharge lamp
JPS5838449A (en) * 1981-08-31 1983-03-05 Matsushita Electronics Corp High pressure sodium lamp
JPS5838450A (en) * 1981-08-31 1983-03-05 Matsushita Electronics Corp High pressure sodium lamp
JPS595555A (en) * 1982-06-30 1984-01-12 Japan Storage Battery Co Ltd High pressure sodium lamp comprising starter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535494A (en) * 1978-09-05 1980-03-12 Philips Nv Discharge lamp
JPS587231B2 (en) * 1978-09-05 1983-02-08 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン discharge lamp
JPS5665456A (en) * 1979-10-31 1981-06-03 Mitsubishi Electric Corp Metal vapor discharge lamp
JPS5838449A (en) * 1981-08-31 1983-03-05 Matsushita Electronics Corp High pressure sodium lamp
JPS5838450A (en) * 1981-08-31 1983-03-05 Matsushita Electronics Corp High pressure sodium lamp
JPH0465491B2 (en) * 1981-08-31 1992-10-20 Matsushita Electronics Corp
JPH0465492B2 (en) * 1981-08-31 1992-10-20 Matsushita Electronics Corp
JPS595555A (en) * 1982-06-30 1984-01-12 Japan Storage Battery Co Ltd High pressure sodium lamp comprising starter
JPH0415579B2 (en) * 1982-06-30 1992-03-18 Japan Storage Battery Co Ltd

Also Published As

Publication number Publication date
JPS6254231B2 (en) 1987-11-13

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