DK423880A - Fremgangsmaade og indretning til at lette ioniseringen i udlad ningslamper samt belysningsudstyr med en saadan indretning - Google Patents
Fremgangsmaade og indretning til at lette ioniseringen i udlad ningslamper samt belysningsudstyr med en saadan indretningInfo
- Publication number
- DK423880A DK423880A DK423880A DK423880A DK423880A DK 423880 A DK423880 A DK 423880A DK 423880 A DK423880 A DK 423880A DK 423880 A DK423880 A DK 423880A DK 423880 A DK423880 A DK 423880A
- Authority
- DK
- Denmark
- Prior art keywords
- easying
- ionization
- lamps
- disposable
- procedure
- 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
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 |
|---|---|
| DK423880A true DK423880A (da) | 1981-04-24 |
Family
ID=26221405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK423880A DK423880A (da) | 1979-10-23 | 1980-10-07 | Fremgangsmaade og indretning til at lette ioniseringen i udlad ningslamper samt belysningsudstyr med en saadan indretning |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0027764A1 (da) |
| DK (1) | DK423880A (da) |
| FI (1) | FI803193L (da) |
| NO (1) | NO802982L (da) |
| PT (1) | PT71933B (da) |
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/FI803193L/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 |
|---|---|
| PT71933A (fr) | 1980-11-01 |
| EP0027764A1 (fr) | 1981-04-29 |
| NO802982L (no) | 1981-04-24 |
| FI803193L (fi) | 1981-04-24 |
| PT71933B (fr) | 1981-08-31 |
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