GB560307A - Improved stroboscopic illumination device using an electric discharge lamp - Google Patents
Improved stroboscopic illumination device using an electric discharge lampInfo
- Publication number
- GB560307A GB560307A GB1581942A GB1581942A GB560307A GB 560307 A GB560307 A GB 560307A GB 1581942 A GB1581942 A GB 1581942A GB 1581942 A GB1581942 A GB 1581942A GB 560307 A GB560307 A GB 560307A
- Authority
- GB
- United Kingdom
- Prior art keywords
- supply
- discharge
- cathode
- condenser
- discharge 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
- H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
Landscapes
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
Abstract
560,307. Supply and control systems for space discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., and RUFF, H. R. Nov. 9, 1942, No. 15819. [Class 38 (iv)] Stroboscopic illumination is obtained from a fluorescent electric discharge lamp having a cathode 2 of low current capacity and means 4, 5 to facilitate the starting of the discharge connected in a circuit which supplies current continuously to heat the cathode and to charge a condenser 9 which is discharged at the required frequency between the anode and cathode; the discharge may be produced as a relaxation oscillation controlled by resistance 12 when the supply circuit 6 is direct current, or it may occur once in each cycle when the supply is alternating current. The discharge may be controlled in association with a balancing test on rotating device by switching means 16 which may be of the kind described in 'Specification 555,595, [Group XIX]. As shown, a rectifier 10 is provided for charging an auxiliary condenser 8 of large capacity ; a switch 14 disconnects this condenser and shortcircuits the rectifier when a d.c. supply is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1581942A GB560307A (en) | 1942-11-09 | 1942-11-09 | Improved stroboscopic illumination device using an electric discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1581942A GB560307A (en) | 1942-11-09 | 1942-11-09 | Improved stroboscopic illumination device using an electric discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB560307A true GB560307A (en) | 1944-03-29 |
Family
ID=10066084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1581942A Expired GB560307A (en) | 1942-11-09 | 1942-11-09 | Improved stroboscopic illumination device using an electric discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB560307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2168861A (en) * | 1984-12-21 | 1986-06-25 | Gerger Scient Instr Company Th | Flashing lamp unit |
-
1942
- 1942-11-09 GB GB1581942A patent/GB560307A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2168861A (en) * | 1984-12-21 | 1986-06-25 | Gerger Scient Instr Company Th | Flashing lamp unit |
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