GB828145A - Improvements in or relating to electric amplifying devices - Google Patents
Improvements in or relating to electric amplifying devicesInfo
- Publication number
- GB828145A GB828145A GB18521/58A GB1852158A GB828145A GB 828145 A GB828145 A GB 828145A GB 18521/58 A GB18521/58 A GB 18521/58A GB 1852158 A GB1852158 A GB 1852158A GB 828145 A GB828145 A GB 828145A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- electrophotoluminescent
- june
- chlorine
- electric power
- 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
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
- H05B33/145—Arrangements of the electroluminescent material
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F17/00—Amplifiers using electroluminescent element or photocell
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
- Luminescent Compositions (AREA)
Abstract
828,145. Electrophotoluminescent amplifiers. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 10, 1958 [June 13, 1957], No. 18521/58. Class 39(1). [Also in Groups XXXVI and XL(c)] In a device for amplifying electric power, the electric power is supplied to the electrodes of an electrophotoluminescent element 3 which is irradiated preferably by light of short wavelength, e.g. ultra-violet light, this element being combined with a photosensitive element 4, e.g. of cadmium sulphide, the impedance of which is varied by the field modulated luminescence, so that an amplified voltage may be derived from a load impedance 8. If the luminescent material is zinccadmium-sulphide activated with copper and chlorine it is possible to use daylight for the continuous irradiation. The voltage to be amplified is preferably modulated on an alternating voltage of comparatively high frequency but modulation on carrier oscillation is not necessary if the luminescent layer exhibits field extinction a suitable phosphor being zinc-cadmium selenide activated with silver and chlorine which also contains certain other elements such as iron, cobalt or nickel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL828145X | 1957-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB828145A true GB828145A (en) | 1960-02-17 |
Family
ID=19841114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18521/58A Expired GB828145A (en) | 1957-06-13 | 1958-06-10 | Improvements in or relating to electric amplifying devices |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1081925B (en) |
| GB (1) | GB828145A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL243338A (en) * | 1959-09-14 | |||
| NL270450A (en) * | 1960-09-09 | 1900-01-01 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE529488C (en) * | 1925-04-05 | 1931-07-14 | August Karolus Dr | Arrangement for interference-free reception |
| DE820015C (en) * | 1949-09-10 | 1951-11-08 | Siemens & Halske A G | Amplifier |
| DE885567C (en) * | 1951-05-08 | 1953-08-06 | Cathodeon Ltd | Processes and circuits for amplifying electrical currents |
| US3054900A (en) * | 1954-07-06 | 1962-09-18 | Itt | Solid-state radiation amplifier |
-
1958
- 1958-06-10 GB GB18521/58A patent/GB828145A/en not_active Expired
- 1958-06-10 DE DEN15194A patent/DE1081925B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1081925B (en) | 1960-05-19 |
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