JPS57136758A - Metal halide lamp - Google Patents
Metal halide lampInfo
- Publication number
- JPS57136758A JPS57136758A JP2278481A JP2278481A JPS57136758A JP S57136758 A JPS57136758 A JP S57136758A JP 2278481 A JP2278481 A JP 2278481A JP 2278481 A JP2278481 A JP 2278481A JP S57136758 A JPS57136758 A JP S57136758A
- Authority
- JP
- Japan
- Prior art keywords
- metal halide
- luminous
- outside diameter
- electrode
- halide lamp
- 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
Links
- 229910001507 metal halide Inorganic materials 0.000 title abstract 4
- 150000005309 metal halides Chemical class 0.000 title abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/84—Lamps with discharge constricted by high pressure
- H01J61/88—Lamps with discharge constricted by high pressure with discharge additionally constricted by envelope
Landscapes
- Discharge Lamp (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
PURPOSE:To reduce the starting voltage and to improve the luminous efficiency by forming a metal halide lamp of 250W class asigning the inside diameter of a luminous tube, a tube wall load, outside diameter of electrode shaft, and outside diameter of electrode coil in specific ranges. CONSTITUTION:A pair of main electrodes 2, 3 and an auxiliary electrode 4 are provided in a luminous tube 1 of quartz glass, and mercury, metal halide, and starting rare gas are sealed. The inside diameter of the luminous tube 1 is asigned to 15 to 17mm., the tube wall load 15 to 22W, the outside diameter d1 of electrode shafts of electrodes 2, 3 0.5 to 0.7mm., and the outside diameter d2 of the electrode coil 1.7 to 3.0mm., to form a metal halide lamp of 250W class. Thus 200V or less of the starting voltage, 85% or higher of the luminous flux maintaining ratio after 3,000hr operation, and 90lm/W or more of luminous efficiency can be atained, and these lamp performances are improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2278481A JPS57136758A (en) | 1981-02-18 | 1981-02-18 | Metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2278481A JPS57136758A (en) | 1981-02-18 | 1981-02-18 | Metal halide lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57136758A true JPS57136758A (en) | 1982-08-23 |
| JPH0357576B2 JPH0357576B2 (en) | 1991-09-02 |
Family
ID=12092295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2278481A Granted JPS57136758A (en) | 1981-02-18 | 1981-02-18 | Metal halide lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57136758A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007526611A (en) * | 2004-03-04 | 2007-09-13 | ゼネラル・エレクトリック・カンパニイ | Optimal shape ceramic metal halide lamp |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5463567A (en) * | 1977-07-05 | 1979-05-22 | Gen Electric | High pressure metallic vapor arc discharge lamp |
| JPS55115258A (en) * | 1979-02-27 | 1980-09-05 | Mitsubishi Electric Corp | Electrode for discharge lamp |
-
1981
- 1981-02-18 JP JP2278481A patent/JPS57136758A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5463567A (en) * | 1977-07-05 | 1979-05-22 | Gen Electric | High pressure metallic vapor arc discharge lamp |
| JPS55115258A (en) * | 1979-02-27 | 1980-09-05 | Mitsubishi Electric Corp | Electrode for discharge lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007526611A (en) * | 2004-03-04 | 2007-09-13 | ゼネラル・エレクトリック・カンパニイ | Optimal shape ceramic metal halide lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0357576B2 (en) | 1991-09-02 |
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