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JPS5557250A - High-pressure metal vapour discharge lamp - Google Patents

High-pressure metal vapour discharge lamp

Info

Publication number
JPS5557250A
JPS5557250A JP13129278A JP13129278A JPS5557250A JP S5557250 A JPS5557250 A JP S5557250A JP 13129278 A JP13129278 A JP 13129278A JP 13129278 A JP13129278 A JP 13129278A JP S5557250 A JPS5557250 A JP S5557250A
Authority
JP
Japan
Prior art keywords
resistor
discharge
main
electrode
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.)
Granted
Application number
JP13129278A
Other languages
Japanese (ja)
Other versions
JPS6346534B2 (en
Inventor
Masato Saito
Keiji Watanabe
Keiichi Baba
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 JP13129278A priority Critical patent/JPS5557250A/en
Publication of JPS5557250A publication Critical patent/JPS5557250A/en
Publication of JPS6346534B2 publication Critical patent/JPS6346534B2/ja
Granted legal-status Critical Current

Links

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  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE: To scheme to stabilize starting characteristic and prevent fire damage of a stabilizer by arranging a thermistor and a resistor having low resistance in an outside tube and forming, through these elements, an exciting circuit between the main electrode and an auxiliary electrode facing to the main electrode.
CONSTITUTION: Main electrodes 2 and 3 are sealed at both end parts of an luminous tube 1, and facing to one main electrode 3, an auxiliary electrode 4 consisting of a tungsten rod is sealed. Between a thermistor 8 and the auxiliary electrode 4, a resistor 9 having low resistance is connected electrically, and an energizing circuit is formed: a stabilizer 6 for high pressure mercury lamp...thermistor 8...resistor 9... auxiliary electrode 4...and a main elecrode 3. Accordingly, the current in the auxiliary discharge of a discharge lamp is controlled, and auxiliary discharge is formed in arc-discharge. As for the resistor 9 described above, the resistance value is selected so that the value of the current which flows in the energizing circuit is 0.5W 1.5 times of the stable lamp current.
COPYRIGHT: (C)1980,JPO&Japio
JP13129278A 1978-10-25 1978-10-25 High-pressure metal vapour discharge lamp Granted JPS5557250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13129278A JPS5557250A (en) 1978-10-25 1978-10-25 High-pressure metal vapour discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13129278A JPS5557250A (en) 1978-10-25 1978-10-25 High-pressure metal vapour discharge lamp

Publications (2)

Publication Number Publication Date
JPS5557250A true JPS5557250A (en) 1980-04-26
JPS6346534B2 JPS6346534B2 (en) 1988-09-16

Family

ID=15054546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13129278A Granted JPS5557250A (en) 1978-10-25 1978-10-25 High-pressure metal vapour discharge lamp

Country Status (1)

Country Link
JP (1) JPS5557250A (en)

Also Published As

Publication number Publication date
JPS6346534B2 (en) 1988-09-16

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