FR2416616A1 - COUPLING DEVICE FOR VARIING THE LIGHTING INTENSITY OF MERCURY STEAM OR SODIUM STEAM LAMPS OPERATING AT HIGH PRESSURE - Google Patents

COUPLING DEVICE FOR VARIING THE LIGHTING INTENSITY OF MERCURY STEAM OR SODIUM STEAM LAMPS OPERATING AT HIGH PRESSURE

Info

Publication number
FR2416616A1
FR2416616A1 FR7902645A FR7902645A FR2416616A1 FR 2416616 A1 FR2416616 A1 FR 2416616A1 FR 7902645 A FR7902645 A FR 7902645A FR 7902645 A FR7902645 A FR 7902645A FR 2416616 A1 FR2416616 A1 FR 2416616A1
Authority
FR
France
Prior art keywords
steam
high pressure
variing
coupling device
lighting intensity
Prior art date
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.)
Withdrawn
Application number
FR7902645A
Other languages
French (fr)
Inventor
Friedrich-Wilhelm Muller
Georg Leve
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2416616A1 publication Critical patent/FR2416616A1/en
Withdrawn legal-status Critical Current

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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

Eclairage. La chaleur ohmique de résistances R1 et R2 , branchées en parallèles à un commutateur 2, est choisie de façon à permettre de conserver l'activation ou l'amorçage de l'espace de décharge de lampes pendant le processus de commutation. Lampes à vapeur de mercure ou à vapeur de sodium fonctionnant sous haute pression.Lighting. The ohmic heat of resistors R1 and R2, connected in parallel to a switch 2, is chosen so as to allow the activation or ignition of the lamp discharge space to be maintained during the switching process. High pressure mercury or sodium vapor lamps.

FR7902645A 1978-02-03 1979-02-01 COUPLING DEVICE FOR VARIING THE LIGHTING INTENSITY OF MERCURY STEAM OR SODIUM STEAM LAMPS OPERATING AT HIGH PRESSURE Withdrawn FR2416616A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2804564A DE2804564B2 (en) 1978-02-03 1978-02-03 Circuit for changing the luminous flux with mercury vapor or sodium vapor high pressure lamps

Publications (1)

Publication Number Publication Date
FR2416616A1 true FR2416616A1 (en) 1979-08-31

Family

ID=6031048

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7902645A Withdrawn FR2416616A1 (en) 1978-02-03 1979-02-01 COUPLING DEVICE FOR VARIING THE LIGHTING INTENSITY OF MERCURY STEAM OR SODIUM STEAM LAMPS OPERATING AT HIGH PRESSURE

Country Status (6)

Country Link
DE (1) DE2804564B2 (en)
FR (1) FR2416616A1 (en)
GB (1) GB2014001A (en)
IT (1) IT1110911B (en)
NL (1) NL7900856A (en)
SE (1) SE7900940L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3012869A1 (en) * 1980-04-02 1981-10-08 Adolf Schuch Kg, Lichttechnische Spezialfabrik, 6520 Worms Dimming circuit for high pressure gas discharge street lamp - has relay to switch alternative combinations of capacitance and inductance
DE4421756A1 (en) * 1994-06-22 1996-01-04 Magnetek May & Christe Gmbh Interruption-free reversal of power to HV discharge lamp
DE29507522U1 (en) * 1995-05-05 1995-11-16 Liesegang Fa Ed Power supply for a projector with a metal halide lamp

Also Published As

Publication number Publication date
DE2804564A1 (en) 1979-08-09
IT1110911B (en) 1986-01-13
NL7900856A (en) 1979-08-07
DE2804564B2 (en) 1980-02-07
SE7900940L (en) 1979-08-04
IT7919870A0 (en) 1979-02-02
GB2014001A (en) 1979-08-15

Similar Documents

Publication Publication Date Title
FR2416616A1 (en) COUPLING DEVICE FOR VARIING THE LIGHTING INTENSITY OF MERCURY STEAM OR SODIUM STEAM LAMPS OPERATING AT HIGH PRESSURE
CA2006280A1 (en) Electronic ballast circuit for discharge lamp
JPS5280675A (en) Metal vapor discharge lamp
CA2027943A1 (en) Metal vapor discharge lamp
JPS5345072A (en) High pressure metal vapor discharge lamp
JPS534383A (en) High pressure sodium lamp
JPS5343255A (en) High frequency heater
JPS53675A (en) Apparaus for lighting high pressure steam discharge lamp
JPS5218081A (en) Discharge lamp lighting device
JPS5251773A (en) Flash discharge lamp
JPS5338177A (en) High pressure metal vapor discharge apparatus
JPS51148275A (en) Metal vapor discharge lamp lighting device
JPS5363787A (en) Fluorescent lamp
JPS527175A (en) Low pressure mercury vapor lamp
JPS5310568A (en) Fluorescent lamp incorporating hig-pressure mercury vapor
JPS5323172A (en) High pressure meta l vapor discharge lamp
JPS51148270A (en) Discharge lamp lighting device
JPS5225486A (en) Mercury arc lamp for photochemical reaction
JPS5396278A (en) Metllic vapor discharge lamp
JPS51140384A (en) Fluorescent lamp
JPS51115072A (en) Discharge lamp lighting device
JPS5273582A (en) Discharge lamp which is provided with discharge lamp for emergency lam p
JPS5218080A (en) Discharge lamp lighting device
JPS5318274A (en) High pressure sodium lamp
JPS51150890A (en) Fluorescent lamp

Legal Events

Date Code Title Description
ST Notification of lapse