JPS5549854A - Metal halide lamp - Google Patents

Metal halide lamp

Info

Publication number
JPS5549854A
JPS5549854A JP12236878A JP12236878A JPS5549854A JP S5549854 A JPS5549854 A JP S5549854A JP 12236878 A JP12236878 A JP 12236878A JP 12236878 A JP12236878 A JP 12236878A JP S5549854 A JPS5549854 A JP S5549854A
Authority
JP
Japan
Prior art keywords
iodide
lamp
rate
amount
scandium
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
JP12236878A
Other languages
Japanese (ja)
Inventor
Jiro Honda
Chiaki Tanaka
Tomiki Inagaki
Shigeyuki Mori
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.)
Japan Storage Battery Co Ltd
Original Assignee
Japan Storage Battery Co 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 Japan Storage Battery Co Ltd filed Critical Japan Storage Battery Co Ltd
Priority to JP12236878A priority Critical patent/JPS5549854A/en
Publication of JPS5549854A publication Critical patent/JPS5549854A/en
Pending legal-status Critical Current

Links

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  • Discharge Lamp (AREA)

Abstract

PURPOSE: To increase the efficiency of a lamp by enclosing a specific amount of sodium iodide and scandium iodide in a specific rate.
CONSTITUTION: The enclosing amount M (mg) of scandium iodide per 1cc. of the inner volume of luminous tube of a metal halide 1amp in which sodium iodide, scandium iodide, mercury, and rate gas are enclosed is adjusted within 1.10× e-0.00205W<M<1.21×e-0.0009W, in the relation to the lamp input W (watt), and the rate of enclosed amount of sodium iodide for scandium iodide is maintained 3W9% be weight. Accordingly, lamp efficiency can be improved, and arc is stabilized and stable life characteristic can be obtained, whthout injuring colour rendering performance.
COPYRIGHT: (C)1980,JPO&Japio
JP12236878A 1978-10-03 1978-10-03 Metal halide lamp Pending JPS5549854A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12236878A JPS5549854A (en) 1978-10-03 1978-10-03 Metal halide lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12236878A JPS5549854A (en) 1978-10-03 1978-10-03 Metal halide lamp

Publications (1)

Publication Number Publication Date
JPS5549854A true JPS5549854A (en) 1980-04-10

Family

ID=14834124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12236878A Pending JPS5549854A (en) 1978-10-03 1978-10-03 Metal halide lamp

Country Status (1)

Country Link
JP (1) JPS5549854A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5880258A (en) * 1981-11-06 1983-05-14 Toshiba Corp Compact metal halide lamp

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51142882A (en) * 1975-04-29 1976-12-08 Westinghouse Electric Corp Arc discharge lamp
JPS5231583A (en) * 1975-09-05 1977-03-10 Toshiba Corp Lamp discharging metallic fumes
JPS5382073A (en) * 1976-12-21 1978-07-20 Iwasaki Electric Co Ltd Stabilizer integrated metal halide lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51142882A (en) * 1975-04-29 1976-12-08 Westinghouse Electric Corp Arc discharge lamp
JPS5231583A (en) * 1975-09-05 1977-03-10 Toshiba Corp Lamp discharging metallic fumes
JPS5382073A (en) * 1976-12-21 1978-07-20 Iwasaki Electric Co Ltd Stabilizer integrated metal halide lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5880258A (en) * 1981-11-06 1983-05-14 Toshiba Corp Compact metal halide lamp

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