FR2472902B1 - - Google Patents

Info

Publication number: FR2472902B1
Authority: FR; France
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

FR8027501A

Other versions

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.)

General Electric Co

Original Assignee

General Electric Co

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.)

1979-12-27

Filing date

1980-12-24

Publication date

1985-04-05

1980-12-24 Application filed by General Electric Co filed Critical General Electric Co

1981-07-03 Publication of FR2472902A1 publication Critical patent/FR2472902A1/fr

1985-04-05 Application granted granted Critical

1985-04-05 Publication of FR2472902B1 publication Critical patent/FR2472902B1/fr

Status Granted 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
- H05B41/46—Circuits providing for substitution in case of failure of the lamp
- 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
- H05B35/00—Electric light sources using a combination of different types of light generation
- 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

FR8027501A 1979-12-27 1980-12-24 Dispositif d'eclairage a lampe a arc a niveaux d'eclairement haut et bas Granted FR2472902A1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US10769879A	1979-12-27	1979-12-27

Publications (2)

Publication Number	Publication Date
FR2472902A1 FR2472902A1 (fr)	1981-07-03
FR2472902B1 true FR2472902B1 (fr)	1985-04-05

Family

ID=22317981

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR8027501A Granted FR2472902A1 (fr)	1979-12-27	1980-12-24	Dispositif d'eclairage a lampe a arc a niveaux d'eclairement haut et bas

Country Status (4)

Country	Link
JP (1)	JPS56116297A (fr)
DE (1)	DE3048890A1 (fr)
FR (1)	FR2472902A1 (fr)
GB (1)	GB2066596B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4471268A (en) *	1982-12-27	1984-09-11	General Electric Company	Lighting unit having power supply with improved switching means
US4495446A (en) *	1982-12-27	1985-01-22	General Electric Company	Lighting unit with improved control sequence
NL8205026A (nl) *	1982-12-29	1984-07-16	Philips Nv	Inrichting voorzien van een met tenminste twee inwendige elektroden uitgeruste metaaldampontladingsbuis.
AU587100B2 (en) *	1986-01-23	1989-08-03	Hubbell Incorporated	Start, hot restart and operating lamp circuit
US4763044A (en) *	1986-01-23	1988-08-09	Hubbell Incorporated	Start, hot restart and operating lamp circuit
US5866993A (en) *	1996-11-14	1999-02-02	Pacific Scientific Company	Three-way dimming ballast circuit with passive power factor correction

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3527982A (en) *	1968-07-31	1970-09-08	Gen Electric	Discharge lamp ballasting
US4151445A (en) *	1978-02-15	1979-04-24	General Electric Company	Instant light lamp control circuit

1980
- 1980-12-10 GB GB8039638A patent/GB2066596B/en not_active Expired
- 1980-12-23 DE DE19803048890 patent/DE3048890A1/de not_active Withdrawn
- 1980-12-24 FR FR8027501A patent/FR2472902A1/fr active Granted
- 1980-12-25 JP JP18297080A patent/JPS56116297A/ja active Pending

Also Published As

Publication number	Publication date
GB2066596A (en)	1981-07-08
DE3048890A1 (de)	1981-09-10
FR2472902A1 (fr)	1981-07-03
JPS56116297A (en)	1981-09-11
GB2066596B (en)	1984-02-29

Legal Events

Date	Code	Title	Description
1987-10-23	ST	Notification of lapse

Publication	Publication Date	Title
FR2449828B1 (fr)	1983-04-01
FR2450190B1 (fr)	1984-10-26
FR2446507B3 (fr)	1981-10-16
BR8002583A (fr)	1980-12-09
FR2448662B1 (fr)	1983-04-08
BR8006808A (fr)	1981-04-28
FR2447891B1 (fr)	1982-04-30
FR2446691B1 (fr)	1984-10-26
FR2449924B3 (fr)	1981-11-06
FR2448903B1 (fr)	1982-10-08
FR2447048B1 (fr)	1983-10-21
FR2472902B1 (fr)	1985-04-05
FR2449540B1 (fr)	1984-10-26
FR2447317B2 (fr)	1983-04-22
FR2450620B3 (fr)	1981-12-11
FR2446206B3 (fr)	1981-09-11
FR2441687B1 (fr)	1983-03-11
AU78390S (fr)	1980-06-23
AU79826S (fr)	1981-02-10
AU79918S (fr)	1981-02-09
AU80228S (fr)	1980-09-09
AU79559S (fr)	1981-09-11
BR5901094U (fr)	1981-02-17
AU79950S (fr)	1981-01-30
BG44800A1 (fr)	1989-02-15