JPS5580257A - Metal halide lamp - Google Patents

Metal halide lamp

Info

Publication number
JPS5580257A
JPS5580257A JP15352878A JP15352878A JPS5580257A JP S5580257 A JPS5580257 A JP S5580257A JP 15352878 A JP15352878 A JP 15352878A JP 15352878 A JP15352878 A JP 15352878A JP S5580257 A JPS5580257 A JP S5580257A
Authority
JP
Japan
Prior art keywords
halide
lithium
sodium
scandium
metal halide
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
JP15352878A
Other languages
Japanese (ja)
Inventor
Keiji Watanabe
Masato Saito
Keiichi Baba
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 JP15352878A priority Critical patent/JPS5580257A/en
Publication of JPS5580257A publication Critical patent/JPS5580257A/en
Pending legal-status Critical Current

Links

Landscapes

  • Discharge Lamp (AREA)

Abstract

PURPOSE: To improve the color rendition of a metal halide lamp without degradating the efficiency by enclosing lithium halide in addition to scandium halide and sodium halide.
CONSTITUTION: Mercury, a starting rare gas, scandium halide, sodium halide and lithium halide are sealed in a light emitting tube 1 made of transparent quartz glass. The proportion of the quantity of those sealed materials is that the mole ratio of lithium halide to sodium halide is 0.1W10, and the mole ratio of the total quantity of sodium halide and lithium halde to scandium halide is under 50.
COPYRIGHT: (C)1980,JPO&Japio
JP15352878A 1978-12-12 1978-12-12 Metal halide lamp Pending JPS5580257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15352878A JPS5580257A (en) 1978-12-12 1978-12-12 Metal halide lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15352878A JPS5580257A (en) 1978-12-12 1978-12-12 Metal halide lamp

Publications (1)

Publication Number Publication Date
JPS5580257A true JPS5580257A (en) 1980-06-17

Family

ID=15564488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15352878A Pending JPS5580257A (en) 1978-12-12 1978-12-12 Metal halide lamp

Country Status (1)

Country Link
JP (1) JPS5580257A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225738A (en) * 1990-12-14 1993-07-06 North American Philips Corporation Metal halide lamp with improved lumen output and color rendition
JP2008195449A (en) * 2007-02-16 2008-08-28 Japan Crown Cork Co Ltd Metal cap having synthetic resin-made middle plug
JP2008195448A (en) * 2007-02-16 2008-08-28 Japan Crown Cork Co Ltd Sealing mechanism composed of metal cap and synthetic resin-made middle plug, and metal cap having synthetic resin-made middle plug

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225738A (en) * 1990-12-14 1993-07-06 North American Philips Corporation Metal halide lamp with improved lumen output and color rendition
JP2008195449A (en) * 2007-02-16 2008-08-28 Japan Crown Cork Co Ltd Metal cap having synthetic resin-made middle plug
JP2008195448A (en) * 2007-02-16 2008-08-28 Japan Crown Cork Co Ltd Sealing mechanism composed of metal cap and synthetic resin-made middle plug, and metal cap having synthetic resin-made middle plug

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