JPS554860A - Metal halide lamp - Google Patents
Metal halide lampInfo
- Publication number
- JPS554860A JPS554860A JP7834978A JP7834978A JPS554860A JP S554860 A JPS554860 A JP S554860A JP 7834978 A JP7834978 A JP 7834978A JP 7834978 A JP7834978 A JP 7834978A JP S554860 A JPS554860 A JP S554860A
- Authority
- JP
- Japan
- Prior art keywords
- bulb
- lamp
- metal
- luminous tube
- tholium
- 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
Links
Landscapes
- Discharge Lamp (AREA)
Abstract
PURPOSE: To lengthen the life of this lamp, by preventing the rise of lamp voltage by enclosing metal thorium in a luminous tube bulb.
CONSTITUTION: A luminous tube is produced in such a manner that the both ends of a bulb 1 in quartz glass are pressurization-crush sealed, a thorium oxide emitter is applied to the internal both ends and main electrodes 2, 2, which discharge is facilitated, are arranged. A fixed quantity of mercury, rare gases for starting and halides, such as, NaI, TlI, InI, etc. are enclosed in the luminous tube bulb 1 while metal tholium is enclosed. Consequently, metal tholium prevents the transmission of sodium through the quartz glass during lighting, and obviates the formation of free halogen in the bulb 1, and the rise of lamp voltage is checked, thus lengthening the life of this lamp.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7834978A JPS554860A (en) | 1978-06-28 | 1978-06-28 | Metal halide lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7834978A JPS554860A (en) | 1978-06-28 | 1978-06-28 | Metal halide lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554860A true JPS554860A (en) | 1980-01-14 |
Family
ID=13659503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7834978A Pending JPS554860A (en) | 1978-06-28 | 1978-06-28 | Metal halide lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554860A (en) |
-
1978
- 1978-06-28 JP JP7834978A patent/JPS554860A/en active Pending
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