NO802982L - Fremgangsmaate og innretning for aa lette ioniseringen i utladningslamper. - Google Patents
Fremgangsmaate og innretning for aa lette ioniseringen i utladningslamper.Info
- Publication number
- NO802982L NO802982L NO802982A NO802982A NO802982L NO 802982 L NO802982 L NO 802982L NO 802982 A NO802982 A NO 802982A NO 802982 A NO802982 A NO 802982A NO 802982 L NO802982 L NO 802982L
- Authority
- NO
- Norway
- Prior art keywords
- lamp
- voltage
- ionization
- autotransformer
- supply voltage
- Prior art date
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
- H05B41/16—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies
- H05B41/20—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch
- H05B41/23—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
- H05B41/232—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
-
- 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
- H05B41/40—Controlling the intensity of light discontinuously
- H05B41/42—Controlling the intensity of light discontinuously in two steps only
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Electrostatic Separation (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7926225A FR2468276A1 (fr) | 1979-10-23 | 1979-10-23 | Dispositif pour stabiliser les lampes a decharge, et installation d'eclairage s'y rapportant |
| MC801449A MC1382A1 (fr) | 1980-05-14 | 1980-05-14 | Procede pour favoriser l'ionisation des lampes a decharge,et dispositif s'y rapportant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO802982L true NO802982L (no) | 1981-04-24 |
Family
ID=26221405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO802982A NO802982L (no) | 1979-10-23 | 1980-10-07 | Fremgangsmaate og innretning for aa lette ioniseringen i utladningslamper. |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0027764A1 (fi) |
| DK (1) | DK423880A (fi) |
| FI (1) | FI803193A7 (fi) |
| NO (1) | NO802982L (fi) |
| PT (1) | PT71933B (fi) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079132A (en) * | 1987-09-16 | 1992-01-07 | Fuji Photo Film Co., Ltd. | Method for forming a color positive having improved color reproduction |
| DE3740676A1 (de) * | 1987-12-01 | 1989-06-22 | Erzmoneit Dorit | Schaltungsanordnung zur energieeinsparung durch induktive netzspannungsabsenkung fuer nieder- und hochdruckentladungslampen sowie quecksilberdampflampen |
| IT1296774B1 (it) * | 1997-05-21 | 1999-07-27 | Elettronica Reverberi Di Rever | Dispositivo riduttore centralizzato di potenza in particolare per impianti di illuminazione |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR945990A (fr) * | 1942-01-22 | 1949-05-19 | Lampes Sa | Perfectionnement à l'amorçage et au fonctionnement des tubes à décharge et appareils similaires |
| US2446033A (en) * | 1946-02-13 | 1948-07-27 | Gen Electric | High reactance transformer |
| US3629650A (en) * | 1968-11-21 | 1971-12-21 | Patrick And Drew Ltd | Method and apparatus for operating a gas discharge tube |
-
1980
- 1980-10-07 DK DK423880A patent/DK423880A/da unknown
- 1980-10-07 NO NO802982A patent/NO802982L/no unknown
- 1980-10-08 FI FI803193A patent/FI803193A7/fi not_active Application Discontinuation
- 1980-10-17 PT PT71933A patent/PT71933B/pt unknown
- 1980-10-17 EP EP80401478A patent/EP0027764A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0027764A1 (fr) | 1981-04-29 |
| FI803193L (fi) | 1981-04-24 |
| FI803193A7 (fi) | 1981-04-24 |
| PT71933A (fr) | 1980-11-01 |
| PT71933B (fr) | 1981-08-31 |
| DK423880A (da) | 1981-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2232543A (en) | Fluorescent lamp dimming system | |
| US6316885B1 (en) | Single ballast for powering high intensity discharge lamps | |
| AU736426B2 (en) | Multi-voltage ballast and dimming circuits for a lamp driven voltage transformation and ballasting system | |
| US4017761A (en) | Electric device for starting and supplying a gas-and/or vapor discharge lamp | |
| US5825139A (en) | Lamp driven voltage transformation and ballasting system | |
| US4695771A (en) | Ignition circuit for high pressure arc discharge lamps | |
| US4678968A (en) | High intensity discharge lamp starting and operating apparatus | |
| JP3542152B2 (ja) | 高輝度放電ランプ用バラスト | |
| US2370635A (en) | Luminescent tube system | |
| US3976910A (en) | Operating circuit for discharge lamps with voltage starting circuit and auxiliary lighting means therefor | |
| US4766352A (en) | Method and apparatus for starting and operating fluorescent lamp and auxiliary ballast systems at reduced power levels | |
| NO802982L (no) | Fremgangsmaate og innretning for aa lette ioniseringen i utladningslamper. | |
| US2231584A (en) | Electric discharge apparatus | |
| US2444408A (en) | Electric gaseous discharge lamp circuit | |
| US5444334A (en) | System for starting a high intensity discharge lamp | |
| US4754201A (en) | Magnetic low load factor series ballast circuit | |
| US3201645A (en) | Dimming circuit and apparatus for gaseous discharge lamps | |
| US4378515A (en) | Discharge lamp lighting device for copying machines | |
| US2565110A (en) | Polyphase fluorescent lamp circuit | |
| US1976645A (en) | Apparatus for controlling discharge lamps | |
| US2821661A (en) | Apparatuses and circuits for dimming gaseous discharge devices | |
| US2339307A (en) | Starting and operating circuit for gaseous electric discharge devices | |
| US3629650A (en) | Method and apparatus for operating a gas discharge tube | |
| JP3871069B2 (ja) | 放電灯点灯装置 | |
| GB2057795A (en) | Improvements in or relating to operating circuits for electric discharge lamps |