FR1404606A - Device for varying the brightness of at least two electric discharge tubes - Google Patents

Device for varying the brightness of at least two electric discharge tubes

Info

Publication number
FR1404606A
FR1404606A FR975381A FR975381A FR1404606A FR 1404606 A FR1404606 A FR 1404606A FR 975381 A FR975381 A FR 975381A FR 975381 A FR975381 A FR 975381A FR 1404606 A FR1404606 A FR 1404606A
Authority
FR
France
Prior art keywords
brightness
varying
electric discharge
discharge tubes
tubes
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.)
Expired
Application number
FR975381A
Other languages
French (fr)
Inventor
Edouard Gomonet
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.)
Claude Paz et Visseaux SA
Original Assignee
Claude Paz et Visseaux SA
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 Claude Paz et Visseaux SA filed Critical Claude Paz et Visseaux SA
Priority to FR975381A priority Critical patent/FR1404606A/en
Priority to US453703A priority patent/US3377508A/en
Priority to CH649765A priority patent/CH428002A/en
Priority to BE663741D priority patent/BE663741A/xx
Application granted granted Critical
Publication of FR1404606A publication Critical patent/FR1404606A/en
Expired 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
    • H05B41/39—Controlling the intensity of light continuously
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/04—Dimming circuit for fluorescent lamps
FR975381A 1964-05-22 1964-05-22 Device for varying the brightness of at least two electric discharge tubes Expired FR1404606A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR975381A FR1404606A (en) 1964-05-22 1964-05-22 Device for varying the brightness of at least two electric discharge tubes
US453703A US3377508A (en) 1964-05-22 1965-05-06 Arrangement for varying the luminosity of at least two electric discharge tubes
CH649765A CH428002A (en) 1964-05-22 1965-05-10 Device for varying the brightness of at least two electric discharge tubes
BE663741D BE663741A (en) 1964-05-22 1965-05-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR975381A FR1404606A (en) 1964-05-22 1964-05-22 Device for varying the brightness of at least two electric discharge tubes

Publications (1)

Publication Number Publication Date
FR1404606A true FR1404606A (en) 1965-07-02

Family

ID=8830575

Family Applications (1)

Application Number Title Priority Date Filing Date
FR975381A Expired FR1404606A (en) 1964-05-22 1964-05-22 Device for varying the brightness of at least two electric discharge tubes

Country Status (4)

Country Link
US (1) US3377508A (en)
BE (1) BE663741A (en)
CH (1) CH428002A (en)
FR (1) FR1404606A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE391312B (en) * 1973-10-15 1977-02-14 W E W Jacob DEVICE FOR THE SO-CALLED TWO-COURSE BIKE LIGHTING SYSTEM
US5345150A (en) * 1992-03-26 1994-09-06 Stocker & Yale, Inc. Regulating light intensity by means of magnetic core with multiple windings
US5239239A (en) * 1992-03-26 1993-08-24 Stocker & Yale, Inc. Surrounding a portion of a lamp with light regulation apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1729091A (en) * 1921-05-11 1929-09-24 Westinghouse Electric & Mfg Co Transformer system
DE640334C (en) * 1932-07-31 1936-12-30 Aeg Arrangement for the safe implementation of the control of the steam or gas discharge paths of converters equipped with grids
US3275788A (en) * 1963-11-21 1966-09-27 Gen Motors Corp Electrical discharge machining apparatus

Also Published As

Publication number Publication date
CH428002A (en) 1967-01-15
BE663741A (en) 1965-11-12
US3377508A (en) 1968-04-09

Similar Documents

Publication Publication Date Title
FR1421009A (en) Device for the separation of materials
FR1391985A (en) Assembly device for tubes
FR1404606A (en) Device for varying the brightness of at least two electric discharge tubes
CH443195A (en) Device for bending an elongated element
CH433872A (en) Removable assembly device of at least two metal profiles
FR1469132A (en) Device for transferring an electric current to or from inside the human body
FR1328449A (en) New device for the assembly of tubular section profiles
FR1461806A (en) Device for fixing two telescopically movable tubes one inside the other
FR1445855A (en) semiconductor controlled rectifier element for high currents
CH450523A (en) Electrical switch-off device
FR1327270A (en) Burner mounting, intended to allow its removable
FR1416189A (en) Device for electric arc welding
FR1421100A (en) User assembly for telecommunication installations
FR1399499A (en) Lighting device for apparatus fitted with a slit lamp, in particular for examinations of the eye
FR1468141A (en) Assembly device for tubular structures
FR1380200A (en) Axially adjustable drive mechanism
FR1426824A (en) Perfecting polishing
FR1416188A (en) Catoptric-dioptric device for lighting devices
FR1438873A (en) Improved water resistant adhesives
FR1440543A (en) Arrangement for the connection of at least two conductors
FR1411598A (en) Camera body
FR1387617A (en) Suction device for electric arc furnaces
FR1365425A (en) Time reset device for electric clock
FR1459502A (en) Waterproof luminaire
FR1522150A (en) Electric arc welding device