GB434915A - Improvements in the supply of electric discharge tubes excited inductively - Google Patents
Improvements in the supply of electric discharge tubes excited inductivelyInfo
- Publication number
- GB434915A GB434915A GB37389/34A GB3738934A GB434915A GB 434915 A GB434915 A GB 434915A GB 37389/34 A GB37389/34 A GB 37389/34A GB 3738934 A GB3738934 A GB 3738934A GB 434915 A GB434915 A GB 434915A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condenser
- winding
- lamp
- circuit
- alternator
- 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
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
- H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
- H01J65/048—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using an excitation coil
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
434,915. Discharge lamps. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES ETABLISSEMENTS CLAUDE-PAZ SILVA, 8, Rue Cognacq-Jay, Paris. Dec. 31, 1934, No. 37389. Convention date, Oct. 17. [Class 39 (i)] The starting of a lamp in which spark spectra are produced by means of an electromagnetic field of very high intensity, is effected by an electrostatic field ionizing the gas filling. For this purpose a potential may be applied to an auxiliary electrode outside the lamp or, as shown, the circuit of the winding 1 and of a 30,000 cycle alternator 5 is tuned to resonance by a series condenser 4 and a condenser 5 in parallel. The alternator may be overexcited momentarily. An arc spectrum is produced initially, and its damping due to the current induced in the gas reduces the current in the winding to a safe value. The constants of the circuit may be varied by hand or by a relay. The condenser 5 may be omitted. Specifications 404,271 and 409,488 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR434915X | 1934-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB434915A true GB434915A (en) | 1935-09-11 |
Family
ID=8899617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37389/34A Expired GB434915A (en) | 1934-10-17 | 1934-12-31 | Improvements in the supply of electric discharge tubes excited inductively |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB434915A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2636449A1 (en) * | 1975-08-13 | 1977-02-24 | Donald Drury Hollister | METHOD OF GENERATING LIGHT WITH AN ELECTRODE-LESS FLUORESCENT LAMP |
| GB2221086A (en) * | 1988-06-20 | 1990-01-24 | Gen Electric | Starting electrodes for electrodeless lamps |
-
1934
- 1934-12-31 GB GB37389/34A patent/GB434915A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2636449A1 (en) * | 1975-08-13 | 1977-02-24 | Donald Drury Hollister | METHOD OF GENERATING LIGHT WITH AN ELECTRODE-LESS FLUORESCENT LAMP |
| GB2221086A (en) * | 1988-06-20 | 1990-01-24 | Gen Electric | Starting electrodes for electrodeless lamps |
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