GB9716377D0 - Intensity control for fluorescent lamps - Google Patents

Intensity control for fluorescent lamps

Info

Publication number
GB9716377D0
GB9716377D0 GBGB9716377.8A GB9716377A GB9716377D0 GB 9716377 D0 GB9716377 D0 GB 9716377D0 GB 9716377 A GB9716377 A GB 9716377A GB 9716377 D0 GB9716377 D0 GB 9716377D0
Authority
GB
United Kingdom
Prior art keywords
fluorescent lamps
intensity control
intensity
control
lamps
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Withdrawn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
GBGB9716377.8A
Other versions
GB2316246A (en
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.)
Goodrich Avionics Systems Inc
Original Assignee
BF Goodrich Avionics Systems 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 BF Goodrich Avionics Systems Inc filed Critical BF Goodrich Avionics Systems Inc
Publication of GB9716377D0 publication Critical patent/GB9716377D0/en
Publication of GB2316246A publication Critical patent/GB2316246A/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Withdrawn legal-status Critical Current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
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • 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
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
GB9716377A 1996-08-05 1997-08-01 Intensity control for fluorescent lamps Withdrawn GB2316246A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69515496A 1996-08-05 1996-08-05

Publications (2)

Publication Number Publication Date
GB9716377D0 true GB9716377D0 (en) 1997-10-08
GB2316246A GB2316246A (en) 1998-02-18

Family

ID=24791830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9716377A Withdrawn GB2316246A (en) 1996-08-05 1997-08-01 Intensity control for fluorescent lamps

Country Status (2)

Country Link
FR (1) FR2752135A1 (en)
GB (1) GB2316246A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1126184A (en) 1997-07-04 1999-01-29 Canon Inc Fluorescent lamp driving circuit and image forming device using this
US6352334B2 (en) 1997-10-20 2002-03-05 Canon Kabushiki Kaisha Ink jet printer provided with an improved cleaning unit
US6097162A (en) * 1998-08-17 2000-08-01 Alliedsignal Inc. Power supply system for a fluorescent lamp
WO2000038481A1 (en) * 1998-12-21 2000-06-29 Koninklijke Philips Electronics N.V. Circuit arrangement
US6624593B2 (en) * 2001-10-08 2003-09-23 Randall D. Blanchard Dimmable ballast for electrodeless fluorescent lamps
US20050067973A1 (en) * 2001-11-23 2005-03-31 Marcel Beij Device for heating electrodes of a discharge lamp
KR100892584B1 (en) * 2002-08-26 2009-04-08 삼성전자주식회사 Apparatus for providing power, backlight assembly and liquid crystal display having the same
CN100383616C (en) * 2004-12-30 2008-04-23 鸿富锦精密工业（深圳）有限公司 LCD circuit
EP1737281A3 (en) * 2005-06-16 2010-11-24 SE Lightmanagement AG Electronic Ballast
EP1984935B1 (en) 2006-02-10 2012-06-27 Koninklijke Philips Electronics N.V. Low-pressure mercury vapor discharge lamp with amalgam
US8044558B2 (en) * 2006-12-13 2011-10-25 Honeywell International Inc. Dimmable high pressure arc lamp apparatus and methods
DE102016120672B4 (en) 2016-10-28 2018-07-19 Heraeus Noblelight Gmbh Lamp system with a gas discharge lamp and adapted operating method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982003744A1 (en) * 1981-04-15 1982-10-28 Jucker Peter Device for the supply of at least one fluorescent tube
CA1177111A (en) * 1982-02-17 1984-10-30 Carl Schweer Lamp dimmer
JPS59167999A (en) * 1983-03-14 1984-09-21 三菱電機株式会社 Device for firing discharge lamp
US4682083A (en) * 1984-10-29 1987-07-21 General Electric Company Fluorescent lamp dimming adaptor kit
US4749916A (en) * 1984-12-19 1988-06-07 Mitsubishi Denki Kabushiki Kaisha Illuminator for cultivating plant
DE4025938A1 (en) * 1990-08-16 1992-02-20 Diehl Gmbh & Co CIRCUIT ARRANGEMENT FOR THE OPERATION OF A FLUORESCENT LAMP
GB2269948A (en) * 1992-07-23 1994-02-23 Axiomatic Design Ltd Gas discharge lamp dimmer circuit

Also Published As

Publication number Publication date
FR2752135A1 (en) 1998-02-06
GB2316246A (en) 1998-02-18

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)