FR2443183B2 - - Google Patents
Info
- Publication number
- FR2443183B2 FR2443183B2 FR7923905A FR7923905A FR2443183B2 FR 2443183 B2 FR2443183 B2 FR 2443183B2 FR 7923905 A FR7923905 A FR 7923905A FR 7923905 A FR7923905 A FR 7923905A FR 2443183 B2 FR2443183 B2 FR 2443183B2
- Authority
- FR
- France
- 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
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/39—Controlling the intensity of light continuously
- H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US94584278A | 1978-09-26 | 1978-09-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2443183A2 FR2443183A2 (fr) | 1980-06-27 |
| FR2443183B2 true FR2443183B2 (es) | 1984-06-15 |
Family
ID=25483619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7923905A Granted FR2443183A2 (fr) | 1978-09-26 | 1979-09-26 | Installations a tubes fluorescents, notamment installation d'eclairage |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0020493B1 (es) |
| JP (1) | JPS5598500A (es) |
| CA (1) | CA1128605A (es) |
| DE (1) | DE2967585D1 (es) |
| FR (1) | FR2443183A2 (es) |
| MX (1) | MX149353A (es) |
| WO (1) | WO1980000776A1 (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2165407B (en) * | 1984-10-02 | 1988-01-20 | Ferranti Plc | Gas laser power supply apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3114283A (en) * | 1960-10-31 | 1963-12-17 | Bausch & Lomb | Light sensing method and apparatus therefor |
| US3482142A (en) * | 1967-12-29 | 1969-12-02 | Sylvania Electric Prod | Regulating system for arc discharge devices having means to compensate for supply voltage and load variations |
| US3479560A (en) * | 1967-12-29 | 1969-11-18 | Sylvania Electric Prod | Arc discharge regulating device having means to compensate for supply voltage variations |
| DE2019240A1 (de) * | 1969-04-23 | 1970-11-12 | Fuji Photo Film Co Ltd | Kopiervorrichtung fuer Farbphotographie |
| CA1128604A (en) * | 1977-11-07 | 1982-07-27 | Don F. Widmayer | Energy conserving automatic light output system |
-
1979
- 1979-01-24 CA CA320,173A patent/CA1128605A/en not_active Expired
- 1979-09-25 MX MX17938979A patent/MX149353A/es unknown
- 1979-09-26 FR FR7923905A patent/FR2443183A2/fr active Granted
- 1979-09-26 DE DE7979901332T patent/DE2967585D1/de not_active Expired
- 1979-09-26 JP JP12373779A patent/JPS5598500A/ja active Pending
- 1979-09-26 WO PCT/US1979/000785 patent/WO1980000776A1/en unknown
-
1980
- 1980-04-22 EP EP19790901332 patent/EP0020493B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2967585D1 (en) | 1986-04-17 |
| JPS5598500A (en) | 1980-07-26 |
| MX149353A (es) | 1983-10-26 |
| FR2443183A2 (fr) | 1980-06-27 |
| EP0020493A4 (en) | 1982-04-22 |
| CA1128605A (en) | 1982-07-27 |
| EP0020493B1 (en) | 1986-03-12 |
| EP0020493A1 (en) | 1981-01-07 |
| WO1980000776A1 (en) | 1980-04-17 |