GB2014358A - Discharge lamp - Google Patents

Discharge lamp

Info

Publication number
GB2014358A
GB2014358A GB7904872A GB7904872A GB2014358A GB 2014358 A GB2014358 A GB 2014358A GB 7904872 A GB7904872 A GB 7904872A GB 7904872 A GB7904872 A GB 7904872A GB 2014358 A GB2014358 A GB 2014358A
Authority
GB
United Kingdom
Prior art keywords
discharge tube
coating
discharge lamp
outer envelope
preferred
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.)
Granted
Application number
GB7904872A
Other versions
GB2014358B (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.)
Thorn Electrical Industries Ltd
Original Assignee
Thorn Electrical Industries 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 Thorn Electrical Industries Ltd filed Critical Thorn Electrical Industries Ltd
Priority to GB7904872A priority Critical patent/GB2014358B/en
Publication of GB2014358A publication Critical patent/GB2014358A/en
Application granted granted Critical
Publication of GB2014358B publication Critical patent/GB2014358B/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
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Discharge Lamp (AREA)

Abstract

A low pressure electrical discharge lamp contains one or more copper halides as source of ultra-violet emission. Preferred lamps contain 0.1 to 0.5 mg per cc cuprous chloride and argon or neon to a pressure of 2 to 12 torr. A fluorescent material may be present as a coating (16) on an outer envelope (15) surrounding the discharge tube (11) or as a coating on the discharge tube itself. In the latter case, an outer envelope may have an infra-red reflecting coating to maintain the preferred discharge tube operating temperature of 200 to 400 DEG C. <IMAGE>
GB7904872A 1978-02-10 1979-02-12 Discharge lamp Expired GB2014358B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7904872A GB2014358B (en) 1978-02-10 1979-02-12 Discharge lamp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB550978 1978-02-10
GB7904872A GB2014358B (en) 1978-02-10 1979-02-12 Discharge lamp

Publications (2)

Publication Number Publication Date
GB2014358A true GB2014358A (en) 1979-08-22
GB2014358B GB2014358B (en) 1982-03-03

Family

ID=26239936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7904872A Expired GB2014358B (en) 1978-02-10 1979-02-12 Discharge lamp

Country Status (1)

Country Link
GB (1) GB2014358B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1187173A2 (en) * 2000-09-08 2002-03-13 Philips Corporate Intellectual Property GmbH Low pressure gas discharge lamp with a copper-containing gas fill
EP1267389A1 (en) * 2001-06-15 2002-12-18 Philips Corporate Intellectual Property GmbH Mercury-free low pressure gas discharge lamp
WO2004025692A1 (en) * 2002-09-12 2004-03-25 Philips Intellectual Property & Standards Gmbh Low-pressure gas discharge lamp with electron emitter substances similar to batio3
US6972521B2 (en) 2000-09-08 2005-12-06 Koninklijke Philips Electronics N.V. Low-pressure gas discharge lamp having a mercury-free gas filling with an indium compound
WO2006043200A1 (en) * 2004-10-19 2006-04-27 Koninklijke Philips Electronics N.V. Low-pressure gas discharge lamp for backlighting with a large color gamut
EP1428241B1 (en) * 2001-06-19 2008-04-23 Koninklijke Philips Electronics N.V. Low-pressure gas discharge lamp with a mercury-free gas filling

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6603267B2 (en) 2000-08-08 2003-08-05 Koninklijke Philips Electronics N.V. Low-pressure gas discharge lamp with a copper-containing gas filling
EP1187173A2 (en) * 2000-09-08 2002-03-13 Philips Corporate Intellectual Property GmbH Low pressure gas discharge lamp with a copper-containing gas fill
EP1187173A3 (en) * 2000-09-08 2005-08-31 Philips Intellectual Property & Standards GmbH Low pressure gas discharge lamp with a copper-containing gas fill
US6972521B2 (en) 2000-09-08 2005-12-06 Koninklijke Philips Electronics N.V. Low-pressure gas discharge lamp having a mercury-free gas filling with an indium compound
EP1267389A1 (en) * 2001-06-15 2002-12-18 Philips Corporate Intellectual Property GmbH Mercury-free low pressure gas discharge lamp
US6731070B2 (en) 2001-06-15 2004-05-04 Koninklijke Philips Electronics N.V. Low-pressure gas discharge lamp with a mercury-free gas filling
EP1428241B1 (en) * 2001-06-19 2008-04-23 Koninklijke Philips Electronics N.V. Low-pressure gas discharge lamp with a mercury-free gas filling
WO2004025692A1 (en) * 2002-09-12 2004-03-25 Philips Intellectual Property & Standards Gmbh Low-pressure gas discharge lamp with electron emitter substances similar to batio3
WO2006043200A1 (en) * 2004-10-19 2006-04-27 Koninklijke Philips Electronics N.V. Low-pressure gas discharge lamp for backlighting with a large color gamut

Also Published As

Publication number Publication date
GB2014358B (en) 1982-03-03

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Legal Events

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