PT71933B - METHOD AND DEVICE FOR PROMOTING THE IONIZATION OF DISCHARGE LAMPS AND ILLUMINATION INSTALLATION THEREFOR - Google Patents

METHOD AND DEVICE FOR PROMOTING THE IONIZATION OF DISCHARGE LAMPS AND ILLUMINATION INSTALLATION THEREFOR

Info

Publication number
PT71933B
PT71933B PT71933A PT7193380A PT71933B PT 71933 B PT71933 B PT 71933B PT 71933 A PT71933 A PT 71933A PT 7193380 A PT7193380 A PT 7193380A PT 71933 B PT71933 B PT 71933B
Authority
PT
Portugal
Prior art keywords
ionization
promoting
discharge lamps
illumination installation
installation therefor
Prior art date
Application number
PT71933A
Other languages
French (fr)
Portuguese (pt)
Other versions
PT71933A (en
Original Assignee
Spie Batignolles
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FR7926225A external-priority patent/FR2468276A1/en
Priority claimed from MC801449A external-priority patent/MC1382A1/en
Application filed by Spie Batignolles filed Critical Spie Batignolles
Publication of PT71933A publication Critical patent/PT71933A/en
Publication of PT71933B publication Critical patent/PT71933B/en

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
PT71933A 1979-10-23 1980-10-17 METHOD AND DEVICE FOR PROMOTING THE IONIZATION OF DISCHARGE LAMPS AND ILLUMINATION INSTALLATION THEREFOR PT71933B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7926225A FR2468276A1 (en) 1979-10-23 1979-10-23 Low-pressure AC discharge lamp starting process - involving initial voltage boost and abrupt reversion to arc voltage
MC801449A MC1382A1 (en) 1980-05-14 1980-05-14 METHOD FOR PROMOTING IONIZATION OF DISCHARGE LAMPS AND DEVICE RELATING THERETO

Publications (2)

Publication Number Publication Date
PT71933A PT71933A (en) 1980-11-01
PT71933B true PT71933B (en) 1981-08-31

Family

ID=26221405

Family Applications (1)

Application Number Title Priority Date Filing Date
PT71933A PT71933B (en) 1979-10-23 1980-10-17 METHOD AND DEVICE FOR PROMOTING THE IONIZATION OF DISCHARGE LAMPS AND ILLUMINATION INSTALLATION THEREFOR

Country Status (5)

Country Link
EP (1) EP0027764A1 (en)
DK (1) DK423880A (en)
FI (1) FI803193L (en)
NO (1) NO802982L (en)
PT (1) PT71933B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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 (en) * 1987-12-01 1989-06-22 Erzmoneit Dorit CIRCUIT ARRANGEMENT FOR ENERGY SAVING BY INDUCTIVE MAINS VOLTAGE REDUCTION FOR LOW AND HIGH PRESSURE DISCHARGE LAMPS AND MERCURY VAPOR LAMP
IT1296774B1 (en) * 1997-05-21 1999-07-27 Elettronica Reverberi Di Rever CENTRALIZED POWER REDUCER DEVICE IN PARTICULAR FOR LIGHTING SYSTEMS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR945990A (en) * 1942-01-22 1949-05-19 Lampes Sa Improvement in the initiation and operation of discharge tubes and similar apparatus
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

Also Published As

Publication number Publication date
DK423880A (en) 1981-04-24
EP0027764A1 (en) 1981-04-29
FI803193L (en) 1981-04-24
NO802982L (en) 1981-04-24
PT71933A (en) 1980-11-01

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