GB505328A - Improvements in or relating to electric high-pressure metal-vapour discharge tubes - Google Patents
Improvements in or relating to electric high-pressure metal-vapour discharge tubesInfo
- Publication number
- GB505328A GB505328A GB20193/38A GB2019338A GB505328A GB 505328 A GB505328 A GB 505328A GB 20193/38 A GB20193/38 A GB 20193/38A GB 2019338 A GB2019338 A GB 2019338A GB 505328 A GB505328 A GB 505328A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- electrodes
- pressure metal
- relating
- vapour discharge
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamp (AREA)
Abstract
505,328. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS'GLOEILAMPENFABRIEKEN. July 7, 1938, No. 20193. Convention date, July 10, 1937. [Class 39 (i)] The wall of a high-pressure metal-vapour discharge tube has contractions opposite the ends of the electrodes for restraining the vaporizable metal from which the electrodes project slightly when the tube is in the horizontal position. In the form shown, the quartz tube 1 has an internal diameter of 2À5 mm. and has contractions 4 facing the ends of the electrodes 2 which project about half a millimetre from the amalgam or mercury 3. The tube is surrounded by a cooling envelope (not shown) through which cooling water is led during operation. The mercury may be heated up for initiating the ignition. Specifications 431,450 and 502,321 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE204074X | 1937-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB505328A true GB505328A (en) | 1939-05-09 |
Family
ID=5779934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20193/38A Expired GB505328A (en) | 1937-07-10 | 1938-07-07 | Improvements in or relating to electric high-pressure metal-vapour discharge tubes |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH204074A (en) |
| FR (1) | FR840535A (en) |
| GB (1) | GB505328A (en) |
| NL (1) | NL50088C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2281148A (en) * | 1993-08-21 | 1995-02-22 | Samsung Display Devices Co Ltd | High intensity discharge lamp |
-
0
- NL NL50088D patent/NL50088C/xx active
-
1938
- 1938-07-07 GB GB20193/38A patent/GB505328A/en not_active Expired
- 1938-07-08 CH CH204074D patent/CH204074A/en unknown
- 1938-07-09 FR FR840535D patent/FR840535A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2281148A (en) * | 1993-08-21 | 1995-02-22 | Samsung Display Devices Co Ltd | High intensity discharge lamp |
| GB2281148B (en) * | 1993-08-21 | 1997-09-17 | Samsung Display Devices Co Ltd | High-intensity discharge lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| FR840535A (en) | 1939-04-27 |
| CH204074A (en) | 1939-04-15 |
| NL50088C (en) |
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