JPS5564357A - Metal halide lamp - Google Patents

Metal halide lamp

Info

Publication number
JPS5564357A
JPS5564357A JP13831978A JP13831978A JPS5564357A JP S5564357 A JPS5564357 A JP S5564357A JP 13831978 A JP13831978 A JP 13831978A JP 13831978 A JP13831978 A JP 13831978A JP S5564357 A JPS5564357 A JP S5564357A
Authority
JP
Japan
Prior art keywords
mercury
scandium
halide
sodium
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.)
Granted
Application number
JP13831978A
Other languages
Japanese (ja)
Other versions
JPS6343865B2 (en
Inventor
Masato Saito
Keiichi Baba
Keiji Watanabe
Keiji Fukuyama
Yoshinori Takai
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 JP13831978A priority Critical patent/JPS5564357A/en
Publication of JPS5564357A publication Critical patent/JPS5564357A/en
Publication of JPS6343865B2 publication Critical patent/JPS6343865B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To reduce the change of characteristic due to the change of lighting angle, by properly specifying the amount of mercury encapsulated in the light emitting tube and the atomic ratio of scandium atom in scandium halide and the sodium atom in sodium halide against said mercury.
CONSTITUTION: Scandium halide and sodium halide are encapsulated together with rear gas and mercury into light emitting tube 1, where the amount of encapsulated mercury per 1cc of inner volume of light emitting tube is made more than 2.8mg while the atomic ratio of scandium atom is scandium halide against the mercury is made to be 0.005W0.11 and the atomic ratio of sodium atom in sodium halide against the mercury is made to be 0.61W2.0. Inner diameter and the tube wall load of light emitting tube 1 are made respectively to be 2.4W3.0cm and 9W12W/cm2.
COPYRIGHT: (C)1980,JPO&Japio
JP13831978A 1978-11-09 1978-11-09 Metal halide lamp Granted JPS5564357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13831978A JPS5564357A (en) 1978-11-09 1978-11-09 Metal halide lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13831978A JPS5564357A (en) 1978-11-09 1978-11-09 Metal halide lamp

Publications (2)

Publication Number Publication Date
JPS5564357A true JPS5564357A (en) 1980-05-15
JPS6343865B2 JPS6343865B2 (en) 1988-09-01

Family

ID=15219110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13831978A Granted JPS5564357A (en) 1978-11-09 1978-11-09 Metal halide lamp

Country Status (1)

Country Link
JP (1) JPS5564357A (en)

Also Published As

Publication number Publication date
JPS6343865B2 (en) 1988-09-01

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