BE878227A - Gradation par basse frequence variable pour lampes a decharge dans un gaz d'intensite elevee - Google Patents

Gradation par basse frequence variable pour lampes a decharge dans un gaz d'intensite elevee

Info

Publication number
BE878227A
BE878227A BE0/196720A BE196720A BE878227A BE 878227 A BE878227 A BE 878227A BE 0/196720 A BE0/196720 A BE 0/196720A BE 196720 A BE196720 A BE 196720A BE 878227 A BE878227 A BE 878227A
Authority
BE
Belgium
Prior art keywords
gas
low frequency
high intensity
discharge lamps
variable low
Prior art date
Application number
BE0/196720A
Other languages
English (en)
French (fr)
Inventor
E Nuver
Original Assignee
Esquire Inc
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 Esquire Inc filed Critical Esquire Inc
Publication of BE878227A publication Critical patent/BE878227A/xx

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
BE0/196720A 1978-08-25 1979-08-13 Gradation par basse frequence variable pour lampes a decharge dans un gaz d'intensite elevee BE878227A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US93688278A 1978-08-25 1978-08-25

Publications (1)

Publication Number Publication Date
BE878227A true BE878227A (fr) 1979-12-03

Family

ID=25469192

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/196720A BE878227A (fr) 1978-08-25 1979-08-13 Gradation par basse frequence variable pour lampes a decharge dans un gaz d'intensite elevee

Country Status (9)

Country Link
AU (1) AU526724B2 (xx)
BE (1) BE878227A (xx)
CA (1) CA1130852A (xx)
DE (1) DE2931794A1 (xx)
ES (1) ES483620A1 (xx)
FR (1) FR2434547A1 (xx)
GB (1) GB2029134B (xx)
IT (1) IT1117392B (xx)
MX (1) MX147513A (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098285B2 (en) * 1982-01-15 1993-11-03 Minitronics Pty. Ltd. Electronic high frequency controlled device for operating gas discharge lamps
US4843627A (en) * 1986-08-05 1989-06-27 Stebbins Russell T Circuit and method for providing a light energy response to an event in real time
DE19708187A1 (de) * 1997-02-28 1998-09-03 Uwe Unterwasser Electric Gmbh Anordnung und Verfahren zur Ansteuerung von Lampenschaltungen
GB2477507A (en) * 2010-02-03 2011-08-10 Emil Blumer Control of luminance of gas discharge lamp using variable frequency drive

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB720279A (en) * 1951-08-09 1954-12-15 Gen Electric Co Ltd Improvements in or relating to circuits for operating electric discharge lamps
GB955656A (en) * 1959-05-19 1964-04-15 A E I Lamp And Lighting Compan Operation of electric discharge lamps
US3836815A (en) * 1972-05-24 1974-09-17 Gen Electric Emergency instant-start lighting system for arc discharge devices

Also Published As

Publication number Publication date
GB2029134B (en) 1982-11-03
IT1117392B (it) 1986-02-17
ES483620A1 (es) 1980-04-01
GB2029134A (en) 1980-03-12
IT7949748A0 (it) 1979-07-13
CA1130852A (en) 1982-08-31
DE2931794A1 (de) 1980-03-06
AU526724B2 (en) 1983-01-27
AU5008979A (en) 1980-02-28
MX147513A (es) 1982-12-10
FR2434547A1 (fr) 1980-03-21

Similar Documents

Publication Publication Date Title
BE878926A (fr) Gradateur a onde rectangulaire ayant une frequence fixe et un cycle d'utilisation variable, pour lampe a decharge gazeuse
BE885744A (fr) Ballast pour lampes a decharge a basse pression
JPS54120974A (en) Converter for discharge lamp and projector
BR7901434A (pt) Transformador de lastro de alta frequencia e circuito de lastro de alimentacao de lampada de descarga
BE893119A (fr) Adaptateur a haute frequence pour lampes a decharge
GB2048560B (en) Electrodeless gas discharge lamp
BE861321A (fr) Starter pour amrocer une lampe a decharge dans le gaz et/ou dans la vapeur
ZA791037B (en) High efficiency ballast system for gaseous discharge lamps
BE878227A (fr) Gradation par basse frequence variable pour lampes a decharge dans un gaz d'intensite elevee
GB2110890B (en) Frequency controlled excitation of a gas discharge lamp
BE878063A (fr) Circuit gradateur a haute frequence pour lampe a decharge gazeuse a haute intensite
JPS52137172A (en) Method and device for maintaining operation of discharge lamp
BE850195A (fr) Circuit d'alimentation d'une lampe a decharge fonctionnant a haute frequence
FR2445046B1 (fr) Laser a decharge dans le gaz
JPS5566849A (en) High intensity discharge lamp
HK13186A (en) Ballast for gaseous discharge lamps
JPS55151762A (en) Metal halide high intensity discharge lamp
JPS55105993A (en) Controller for gas discharge lamp
GB2036472B (en) Igniting means for discharge lamp of reproducer
JPS54127567A (en) Discharge lamp ballast
FR2515916B1 (fr) Circuit haute frequence pour lampes fluorescentes
JPS5611897A (en) High frequency lighting device for metal halide lamp
JPS54127566A (en) Method of producing discharge lamp ballast
FR2334195A1 (fr) Procede pour le vieillissement d'une lampe a decharge dans le gaz
JPS54127568A (en) Discharge lamp ballast

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: ESQUIRE INC.

Effective date: 19840813