EP0081918A3 - Lampes au sodium à haute pression - Google Patents

Lampes au sodium à haute pression Download PDF

Info

Publication number
EP0081918A3
EP0081918A3 EP82306133A EP82306133A EP0081918A3 EP 0081918 A3 EP0081918 A3 EP 0081918A3 EP 82306133 A EP82306133 A EP 82306133A EP 82306133 A EP82306133 A EP 82306133A EP 0081918 A3 EP0081918 A3 EP 0081918A3
Authority
EP
European Patent Office
Prior art keywords
high pressure
pressure sodium
sodium lamps
range
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Withdrawn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
EP82306133A
Other languages
German (de)
English (en)
Other versions
EP0081918A2 (fr
Inventor
Paul Linley Denbigh
Bryan Frederick Jones
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
Application filed by Thorn EMI PLC filed Critical Thorn EMI PLC
Publication of EP0081918A2 publication Critical patent/EP0081918A2/fr
Publication of EP0081918A3 publication Critical patent/EP0081918A3/fr
Withdrawn legal-status Critical Current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
    • H01J61/22—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent vapour of an alkali metal
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/825—High-pressure sodium lamps

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Discharge Lamp (AREA)
EP82306133A 1981-12-11 1982-11-17 Lampes au sodium à haute pression Withdrawn EP0081918A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8137489 1981-12-11
GB8137489 1981-12-11

Publications (2)

Publication Number Publication Date
EP0081918A2 EP0081918A2 (fr) 1983-06-22
EP0081918A3 true EP0081918A3 (fr) 1984-05-02

Family

ID=10526553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82306133A Withdrawn EP0081918A3 (fr) 1981-12-11 1982-11-17 Lampes au sodium à haute pression

Country Status (2)

Country Link
EP (1) EP0081918A3 (fr)
JP (1) JPS58106752A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5138228A (en) * 1990-12-31 1992-08-11 Welch Allyn, Inc. Bulb geometry for low power metal halide lamp
EP0837492A3 (fr) * 1996-10-16 1998-05-27 Osram Sylvania Inc. Lampe à décharge de haute intensité avec un remplissage de xénon sous une pression intermédiaire
CN1199217C (zh) * 2000-01-20 2005-04-27 奥斯兰姆施尔凡尼亚公司 具有尺寸缩小的电弧管的高压钠灯

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906272A (en) * 1974-04-01 1975-09-16 Gen Electric Low wattage high pressure sodium vapor lamps
EP0078105A2 (fr) * 1981-10-28 1983-05-04 THORN EMI plc Lampe à sodium à haute pression

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906272A (en) * 1974-04-01 1975-09-16 Gen Electric Low wattage high pressure sodium vapor lamps
EP0078105A2 (fr) * 1981-10-28 1983-05-04 THORN EMI plc Lampe à sodium à haute pression

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF ILLUMINATING ENGINEERING SOCIETY, vol. 10, no. 4, July 1981, pages 237-244, New York, USA., J.F. WAYMOUTH et al.: "Analysis of factors affecting efficacy of high pressure sodium lamps" *

Also Published As

Publication number Publication date
EP0081918A2 (fr) 1983-06-22
JPS58106752A (ja) 1983-06-25

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): DE FR GB NL

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): DE FR GB NL

17P Request for examination filed

Effective date: 19840815

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19841218

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JONES, BRYAN FREDERICK

Inventor name: DENBIGH, PAUL LINLEY