GB201323093D0 - Extended life discharge lamp - Google Patents

Extended life discharge lamp

Info

Publication number
GB201323093D0
GB201323093D0 GBGB1323093.3A GB201323093A GB201323093D0 GB 201323093 D0 GB201323093 D0 GB 201323093D0 GB 201323093 A GB201323093 A GB 201323093A GB 201323093 D0 GB201323093 D0 GB 201323093D0
Authority
GB
United Kingdom
Prior art keywords
discharge lamp
extended life
life discharge
extended
lamp
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Withdrawn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
GBGB1323093.3A
Other versions
GB2521666A (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.)
Digital Projection Ltd
Original Assignee
Digital Projection Ltd
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 Digital Projection Ltd filed Critical Digital Projection Ltd
Priority to GB1323093.3A priority Critical patent/GB2521666A/en
Publication of GB201323093D0 publication Critical patent/GB201323093D0/en
Publication of GB2521666A publication Critical patent/GB2521666A/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Withdrawn legal-status Critical Current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
    • H05B41/382—Controlling the intensity of light during the transitional start-up phase
GB1323093.3A 2013-12-27 2013-12-27 Extended life discharge lamp Withdrawn GB2521666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1323093.3A GB2521666A (en) 2013-12-27 2013-12-27 Extended life discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1323093.3A GB2521666A (en) 2013-12-27 2013-12-27 Extended life discharge lamp

Publications (2)

Publication Number Publication Date
GB201323093D0 true GB201323093D0 (en) 2014-02-12
GB2521666A GB2521666A (en) 2015-07-01

Family

ID=50114830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1323093.3A Withdrawn GB2521666A (en) 2013-12-27 2013-12-27 Extended life discharge lamp

Country Status (1)

Country Link
GB (1) GB2521666A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6939523B2 (en) * 2017-12-25 2021-09-22 セイコーエプソン株式会社 Discharge light drive device, light source device, projector, and discharge light drive method

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3893042B2 (en) * 2001-10-26 2007-03-14 松下電器産業株式会社 High pressure discharge lamp lighting method, lighting device, and high pressure discharge lamp device
JP2003338394A (en) * 2002-05-21 2003-11-28 Matsushita Electric Ind Co Ltd Method for lighting high-pressure discharge lamp, lighting device and high-pressure discharge lamp device
DE102005049582A1 (en) * 2005-10-17 2007-04-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Method for operating a gas discharge lamp
JP5028005B2 (en) * 2005-11-04 2012-09-19 パナソニック株式会社 High pressure mercury lamp lighting method, its lighting device, lamp system, and projection display device
JP4438826B2 (en) * 2007-06-04 2010-03-24 セイコーエプソン株式会社 Projector and light source device driving method for projector
US20100157257A1 (en) * 2007-09-27 2010-06-24 Iwasaki Electric Co., Ltd. High pressure discharge lamp ballast, high pressure dischargep lamp driving method, and projector
JP5154883B2 (en) * 2007-10-05 2013-02-27 パナソニック株式会社 Projection-type image display device, lighting device, and lighting method
JP4470990B2 (en) * 2007-10-31 2010-06-02 セイコーエプソン株式会社 Light source device, projector, and driving method of light source device
JP4518283B2 (en) * 2008-03-19 2010-08-04 セイコーエプソン株式会社 Discharge lamp lighting device, control method therefor, and projector
WO2010007557A1 (en) * 2008-07-14 2010-01-21 Philips Intellectual Property & Standards Gmbh Method of driving a gas-discharge lamp
JP5309775B2 (en) * 2008-08-07 2013-10-09 セイコーエプソン株式会社 Discharge lamp driving device and driving method, light source device, and image display device
US8183796B2 (en) * 2008-12-18 2012-05-22 Seiko Epson Corporation Stepwise repairing for electrode of discharge lamp

Also Published As

Publication number Publication date
GB2521666A (en) 2015-07-01

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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)