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GB2137017B - Improvements in or relating to discharge lamps - Google Patents
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GB2137017B - Improvements in or relating to discharge lamps - Google Patents

Improvements in or relating to discharge lamps

Info

Publication number
GB2137017B
GB2137017B GB08405149A GB8405149A GB2137017B GB 2137017 B GB2137017 B GB 2137017B GB 08405149 A GB08405149 A GB 08405149A GB 8405149 A GB8405149 A GB 8405149A GB 2137017 B GB2137017 B GB 2137017B
Authority
GB
United Kingdom
Prior art keywords
relating
discharge lamps
lamps
discharge
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
Application number
GB08405149A
Other versions
GB8405149D0 (en
GB2137017A (en
Inventor
Milroy Gamani Abeywickrama
David Wynn Parlour
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.)
EMI Group Ltd
Original Assignee
Thorn EMI PLC
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
Priority claimed from GB838305807A external-priority patent/GB8305807D0/en
Application filed by Thorn EMI PLC filed Critical Thorn EMI PLC
Priority to GB08405149A priority Critical patent/GB2137017B/en
Publication of GB8405149D0 publication Critical patent/GB8405149D0/en
Publication of GB2137017A publication Critical patent/GB2137017A/en
Application granted granted Critical
Publication of GB2137017B publication Critical patent/GB2137017B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
GB08405149A 1983-03-02 1984-02-28 Improvements in or relating to discharge lamps Expired GB2137017B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08405149A GB2137017B (en) 1983-03-02 1984-02-28 Improvements in or relating to discharge lamps

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838305807A GB8305807D0 (en) 1983-03-02 1983-03-02 Discharge lamps
GB08405149A GB2137017B (en) 1983-03-02 1984-02-28 Improvements in or relating to discharge lamps

Publications (3)

Publication Number Publication Date
GB8405149D0 GB8405149D0 (en) 1984-04-04
GB2137017A GB2137017A (en) 1984-09-26
GB2137017B true GB2137017B (en) 1986-12-10

Family

ID=26285403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08405149A Expired GB2137017B (en) 1983-03-02 1984-02-28 Improvements in or relating to discharge lamps

Country Status (1)

Country Link
GB (1) GB2137017B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU213598B (en) * 1994-10-18 1997-08-28 Ge Lighting Tungsram Rt One-side socketed discharge lamp
US5723939A (en) * 1994-12-28 1998-03-03 Matsushita Electronics Corporation Circular fluorescent lamp
DE29600594U1 (en) * 1996-01-15 1997-05-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Low-pressure discharge lamp with base and associated socket
AU2003261864A1 (en) 2002-08-30 2004-03-19 Toshiba Lighting And Technology Corporation Fluorescent lamp and its manufacturing method, and illuminating apparatus
CN100431090C (en) * 2002-08-30 2008-11-05 东芝照明株式会社 Fluorescent lamp, method of manufacturing the same, and lighting apparatus
CN1975980B (en) * 2005-11-30 2010-06-09 东芝照明技术株式会社 Fluorescent lamp device and lighting fixture

Also Published As

Publication number Publication date
GB8405149D0 (en) 1984-04-04
GB2137017A (en) 1984-09-26

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee