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GB2405734B - Light Bulb - Google Patents

Light Bulb

Info

Publication number
GB2405734B
GB2405734B GB0320697A GB0320697A GB2405734B GB 2405734 B GB2405734 B GB 2405734B GB 0320697 A GB0320697 A GB 0320697A GB 0320697 A GB0320697 A GB 0320697A GB 2405734 B GB2405734 B GB 2405734B
Authority
GB
United Kingdom
Prior art keywords
light bulb
bulb
light
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 - Fee Related
Application number
GB0320697A
Other versions
GB2405734A (en
GB0320697D0 (en
Inventor
Sandra Hardy
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0320697A priority Critical patent/GB2405734B/en
Publication of GB0320697D0 publication Critical patent/GB0320697D0/en
Publication of GB2405734A publication Critical patent/GB2405734A/en
Application granted granted Critical
Publication of GB2405734B publication Critical patent/GB2405734B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B37/02—
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
GB0320697A 2003-09-04 2003-09-04 Light Bulb Expired - Fee Related GB2405734B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0320697A GB2405734B (en) 2003-09-04 2003-09-04 Light Bulb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0320697A GB2405734B (en) 2003-09-04 2003-09-04 Light Bulb

Publications (3)

Publication Number Publication Date
GB0320697D0 GB0320697D0 (en) 2003-10-01
GB2405734A GB2405734A (en) 2005-03-09
GB2405734B true GB2405734B (en) 2006-03-15

Family

ID=28686879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0320697A Expired - Fee Related GB2405734B (en) 2003-09-04 2003-09-04 Light Bulb

Country Status (1)

Country Link
GB (1) GB2405734B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8274649B2 (en) * 2008-06-24 2012-09-25 International Business Machines Corporation Failure detection in lighting systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318932A (en) * 1996-11-01 1998-05-06 Lab Craft Limited Fluorescent lamp failure warning device
US6534932B1 (en) * 1999-08-07 2003-03-18 Koninklijke Philips Electronics N.V. Method and arrangement for monitoring a gas discharge lamp
JP2003095013A (en) * 2001-09-20 2003-04-03 Nikko Denki Kk Service vehicle to prevent disorder of routine run

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318932A (en) * 1996-11-01 1998-05-06 Lab Craft Limited Fluorescent lamp failure warning device
US6534932B1 (en) * 1999-08-07 2003-03-18 Koninklijke Philips Electronics N.V. Method and arrangement for monitoring a gas discharge lamp
JP2003095013A (en) * 2001-09-20 2003-04-03 Nikko Denki Kk Service vehicle to prevent disorder of routine run

Also Published As

Publication number Publication date
GB2405734A (en) 2005-03-09
GB0320697D0 (en) 2003-10-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070904