Title:
HIGH PRESSURE METAL VAPOR DISCHARGE LAMP
Document Type and Number:
Japanese Patent JPS55102164
Kind Code:
A
Abstract:
PURPOSE: To prevent burning of a stabilizer and reduce defective starting of a discharge lamp, by using heat sensitive elements in series for starting discharge of a luminous lamp.
CONSTITUTION: Heat sensitive elements 6, 6' in series for starting discharge across main electrodes 3a, 3b on both ends of a luminous lamp 2 are set between a supplementary electrode 10 and stem lead wire 8b. The elements 6, 6' are actuated with a short time lag between them. Even if one of the elements is deposited due to embrittlement, the other element is actuated to start discharge across the main electrodes 3a, 3b. Thus this system can prevent depositing of heat sensitive elements, reduce defective starting and also prevent burning of a stabilizer 22.
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Inventors:
SAITOU MASATO
BABA KEIICHI
FUKUYAMA KEIJI
TAKAI YOSHINORI
WATANABE KEIJI
DOBASHI MASAHIRO
BABA KEIICHI
FUKUYAMA KEIJI
TAKAI YOSHINORI
WATANABE KEIJI
DOBASHI MASAHIRO
Application Number:
JP984179A
Publication Date:
August 05, 1980
Filing Date:
January 31, 1979
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01J61/56; (IPC1-7): H01J61/56