JPS6477863A - High pressure sodium lamp - Google Patents
High pressure sodium lampInfo
- Publication number
- JPS6477863A JPS6477863A JP23521687A JP23521687A JPS6477863A JP S6477863 A JPS6477863 A JP S6477863A JP 23521687 A JP23521687 A JP 23521687A JP 23521687 A JP23521687 A JP 23521687A JP S6477863 A JPS6477863 A JP S6477863A
- Authority
- JP
- Japan
- Prior art keywords
- lamp
- temperature
- kept
- tube
- titanium solder
- 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
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
PURPOSE:To prevent the generation of the plastic deformation of the lead tube so as to obtain good dynamic characteristics of a sodium lamp by providing sodium amalgam in the luminous tube made of transparent alumina provided with the lead tube mainly made of niobium to which an electrode is fixed with titanium solder and by specifying the temperature of the titanium solder portion during the lighting of the lamp. CONSTITUTION:The temperature of the titanium solder portion of a lamp is to be kept between 756 deg.C and 825 deg.C. For instance, a luminous tube 1 is made of polycrystalline alumina and the lead tube 2 is made of an alloy of 90% of niobium and 1% of zirconium, and an electrode rod 5 is fixed to the tip of the lead tube 2 with titanium solder 4, and 6.0mg of sodium, 14mg of mercury and about 6.5kPa of xenon gas are sealed in the luminous tube 1. When a lamp with such a structure the rating of which is e.g. 100V, 150W is lighted at 100V the mean color rendering index Ra is kept at 85, the color temperature is kept at 2500K and the surface tempera ture (at the point [a]) of the titanium solder is kept at 818 deg.C, and even when the lamp is lighted at 129V (at this time, the power is 162W, the temperature of the tita nium solder is 825 deg.C) the plastic deformation of the lead tube is not generated, and on the other hand, when the temperature of the titanium solder is lower than 765 deg.C the mean color rendering index Ra is reduced to less than 70.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23521687A JPS6477863A (en) | 1987-09-18 | 1987-09-18 | High pressure sodium lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23521687A JPS6477863A (en) | 1987-09-18 | 1987-09-18 | High pressure sodium lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6477863A true JPS6477863A (en) | 1989-03-23 |
Family
ID=16982801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23521687A Pending JPS6477863A (en) | 1987-09-18 | 1987-09-18 | High pressure sodium lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6477863A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0790639A1 (en) * | 1996-01-22 | 1997-08-20 | Matsushita Electric Works Ltd | High pressure sodium vapor lamp with high color rendering |
| JP2008018296A (en) * | 2006-07-10 | 2008-01-31 | Meiji Kikai Seisakusho:Kk | Air spray gun |
| JP4847343B2 (en) * | 2003-12-30 | 2011-12-28 | スリーエム イノベイティブ プロパティズ カンパニー | Liquid spray gun with manually separable parts |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50152577A (en) * | 1974-05-29 | 1975-12-08 |
-
1987
- 1987-09-18 JP JP23521687A patent/JPS6477863A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50152577A (en) * | 1974-05-29 | 1975-12-08 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0790639A1 (en) * | 1996-01-22 | 1997-08-20 | Matsushita Electric Works Ltd | High pressure sodium vapor lamp with high color rendering |
| JP4847343B2 (en) * | 2003-12-30 | 2011-12-28 | スリーエム イノベイティブ プロパティズ カンパニー | Liquid spray gun with manually separable parts |
| JP2008018296A (en) * | 2006-07-10 | 2008-01-31 | Meiji Kikai Seisakusho:Kk | Air spray gun |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2036901A1 (en) | Low watt metal halide lamp | |
| GB1486611A (en) | High intensity discharge lamp | |
| JPS6477863A (en) | High pressure sodium lamp | |
| GB953210A (en) | An electric intermediate pressure gas discharge lamp | |
| JPS5524355A (en) | High voltage metal vapor discharge lamp | |
| JPS5753059A (en) | High pressure sodium vapor lamp | |
| EP0377899A2 (en) | Lighting discharge lamp | |
| JPS5821377B2 (en) | Electrode for discharge lamp | |
| JPS57113550A (en) | Discharge lamp | |
| JPS55161358A (en) | High voltage metal vapour discharge lamp | |
| JPS58145054A (en) | High pressure electric discharge lamp | |
| NL8200077A (en) | HIGH PRESSURE LAMP. | |
| JPH0471308B2 (en) | ||
| CA2203946A1 (en) | Metal halide lamp with reduced quartz devitrification | |
| JPS5471886A (en) | Metal vapor discharge lamp | |
| CN2363384Y (en) | No-electrode deuterium lamp | |
| JPH04179045A (en) | Short-arc xenon discharge lamps and short-arc mercury vapor discharge lamps | |
| JPS5650046A (en) | Electrode for electric-discharge lamp | |
| JPS5591555A (en) | High-pressure metal vapor discharge lamp | |
| JPS5725665A (en) | Metal halide lamp | |
| EP0054401A3 (en) | Electric light source with integral switch | |
| CN101599415A (en) | Efficient explosionproof halogen lamp and production method thereof | |
| JPS554858A (en) | Metal halide lamp | |
| JPS5549856A (en) | High voltage metallic-vapor discharge lamp | |
| JPS5494777A (en) | Fluorescent lamp |