IE48753B1 - Apparatus for controlling the variation in light flux - Google Patents

Apparatus for controlling the variation in light flux

Info

Publication number
IE48753B1
IE48753B1 IE1063/79A IE106379A IE48753B1 IE 48753 B1 IE48753 B1 IE 48753B1 IE 1063/79 A IE1063/79 A IE 1063/79A IE 106379 A IE106379 A IE 106379A IE 48753 B1 IE48753 B1 IE 48753B1
Authority
IE
Ireland
Prior art keywords
inductance coil
switch
moving contact
contact
resistor
Prior art date
Application number
IE1063/79A
Other languages
English (en)
Other versions
IE791063L (en
Inventor
Yves Goffaux
Original Assignee
Acec
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
Application filed by Acec filed Critical Acec
Publication of IE791063L publication Critical patent/IE791063L/xx
Publication of IE48753B1 publication Critical patent/IE48753B1/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
    • H05B41/36—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
    • 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
    • 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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
IE1063/79A 1977-10-03 1979-08-08 Apparatus for controlling the variation in light flux IE48753B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE1008418A BE859304A (fr) 1977-10-03 1977-10-03 Installation de commande de variation du flux lumineux
BE1008900A BE867603A (fr) 1977-10-03 1978-05-30 Installation de commande de variation du flux lumineux

Publications (2)

Publication Number Publication Date
IE791063L IE791063L (en) 1979-11-30
IE48753B1 true IE48753B1 (en) 1985-05-15

Family

ID=25661340

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1063/79A IE48753B1 (en) 1977-10-03 1979-08-08 Apparatus for controlling the variation in light flux

Country Status (7)

Country Link
BE (2) BE859304A (it)
DE (1) DE2921833A1 (it)
FR (1) FR2404988A1 (it)
GB (1) GB2022343A (it)
IE (1) IE48753B1 (it)
IT (1) IT1157354B (it)
NL (1) NL7904257A (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29507522U1 (de) * 1995-05-05 1995-11-16 Fa. Ed. Liesegang, 40221 Düsseldorf Stromversorgung für einen Projektor mit Metalldampflampe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463964A (en) * 1967-11-28 1969-08-26 British Lighting Ind Ltd Fluorescent lamp-dimming circuit
FR2055842A5 (it) * 1969-06-24 1971-05-14 Philips France
FR2335119A1 (fr) * 1975-12-08 1977-07-08 Lampes Sa Dispositif de reglage de puissance des lampes a decharge
FR2341246A1 (fr) * 1976-02-12 1977-09-09 Stl Procede et appareillage d'alimentation de lampes a decharge

Also Published As

Publication number Publication date
GB2022343A (en) 1979-12-12
IT7851331A0 (it) 1978-10-02
FR2404988A1 (fr) 1979-04-27
BE859304A (fr) 1978-04-03
FR2404988B1 (it) 1984-05-04
BE867603A (fr) 1978-09-18
IT1157354B (it) 1987-02-11
IE791063L (en) 1979-11-30
DE2921833A1 (de) 1979-12-06
NL7904257A (nl) 1979-12-04

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