GB596476A - Improvements in electric discharge lamps - Google Patents
Improvements in electric discharge lampsInfo
- Publication number
- GB596476A GB596476A GB1921945A GB1921945A GB596476A GB 596476 A GB596476 A GB 596476A GB 1921945 A GB1921945 A GB 1921945A GB 1921945 A GB1921945 A GB 1921945A GB 596476 A GB596476 A GB 596476A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- tube
- handle
- electrode
- electric 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
- H01J17/00—Gas-filled discharge tubes with solid cathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
Landscapes
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Abstract
596,476. Discharge lamps. SCOPHONY, Ltd., and CHARLOTTE, H. F. July 26, 1945. No. 19219. [Class 39 (i)] A circuit as described in Specification 593,332, [Group XXXV], is used to apply short pulses of high-frequency current between one of the main electrodes of an electric discharge lamp and a triggering electrode which comprises a conductor led into the discharge space through an insulating sheath. The lamp comprises two cylindrical parts 10, 11 joined by a cylinder 12 which projects within the electrodes 13, 16 to protect them from ion bombardment. The triggering electrode comprises a wire 17 sheathed by a thin glass tube 19 to near its inner end 18. The lead 20 to the electrode 13 is led through a seal 21 inclined at an acute angle to the axis of the tube and guided by a stud 22 to one pin of a three-pin plug (not shown). The lamp with all the high voltage conductors may be mounted in an enclosure which may serve as a handle. The front tube 10 may extend through an aperture in the centre of a concave mirror to which the handle may be attached.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB596476A true GB596476A (en) | 1948-01-05 |
Family
ID=1734530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1921945A Expired GB596476A (en) | 1945-07-26 | Improvements in electric discharge lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB596476A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1162865A2 (en) * | 2000-06-06 | 2001-12-12 | Matsushita Electric Industrial Co., Ltd. | High-intensity discharge lamp and high-intensity discharge lamp operating apparatus |
-
1945
- 1945-07-26 GB GB1921945A patent/GB596476A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1162865A2 (en) * | 2000-06-06 | 2001-12-12 | Matsushita Electric Industrial Co., Ltd. | High-intensity discharge lamp and high-intensity discharge lamp operating apparatus |
| EP1162865A3 (en) * | 2000-06-06 | 2004-08-25 | Matsushita Electric Industrial Co., Ltd. | High-intensity discharge lamp and high-intensity discharge lamp operating apparatus |
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