GB2082382B - High-pressure sodium vapour discharge lamp - Google Patents

High-pressure sodium vapour discharge lamp

Info

Publication number
GB2082382B
GB2082382B GB8125034A GB8125034A GB2082382B GB 2082382 B GB2082382 B GB 2082382B GB 8125034 A GB8125034 A GB 8125034A GB 8125034 A GB8125034 A GB 8125034A GB 2082382 B GB2082382 B GB 2082382B
Authority
GB
United Kingdom
Prior art keywords
discharge lamp
pressure sodium
vapour discharge
sodium vapour
pressure
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
GB8125034A
Other versions
GB2082382A (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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB2082382A publication Critical patent/GB2082382A/en
Application granted granted Critical
Publication of GB2082382B publication Critical patent/GB2082382B/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
    • 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
    • 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
    • H01J61/302—Vessels; Containers characterised by the material of the vessel
GB8125034A 1980-08-21 1981-08-17 High-pressure sodium vapour discharge lamp Expired GB2082382B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8004726A NL185480C (en) 1980-08-21 1980-08-21 HIGH PRESSURE SODIUM VAPOR DISCHARGE LAMP.

Publications (2)

Publication Number Publication Date
GB2082382A GB2082382A (en) 1982-03-03
GB2082382B true GB2082382B (en) 1984-03-28

Family

ID=19835764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8125034A Expired GB2082382B (en) 1980-08-21 1981-08-17 High-pressure sodium vapour discharge lamp

Country Status (6)

Country Link
JP (1) JPS5755056A (en)
BE (1) BE890021A (en)
DE (1) DE3131990A1 (en)
FR (1) FR2489039A1 (en)
GB (1) GB2082382B (en)
NL (1) NL185480C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620131A (en) * 1983-07-25 1986-10-28 U.S. Philips Corporation Lamp with discharge vessel made of densely sintered translucent aluminium oxide
CA2465786A1 (en) * 2001-10-02 2003-04-10 Gem Lighting Llc High intensity discharge lamp with single crystal sapphire envelope

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7204638A (en) * 1972-04-07 1973-10-09
US3906272A (en) * 1974-04-01 1975-09-16 Gen Electric Low wattage high pressure sodium vapor lamps
NL177058C (en) * 1977-04-15 1985-07-16 Philips Nv HIGH PRESSURE SODIUM VAPOR DISCHARGE LAMP.
JPS5477481A (en) * 1977-12-02 1979-06-20 Ngk Insulators Ltd Polycrystal transparent alumina light emitting tube and high voltage vapor discharge lamp using same
JPS5553054A (en) * 1978-10-14 1980-04-18 Toshiba Corp High pressure sodium lamp

Also Published As

Publication number Publication date
DE3131990C2 (en) 1992-07-02
JPS5755056A (en) 1982-04-01
NL8004726A (en) 1982-03-16
NL185480B (en) 1989-11-16
NL185480C (en) 1991-01-16
FR2489039B1 (en) 1984-10-19
GB2082382A (en) 1982-03-03
BE890021A (en) 1982-02-19
DE3131990A1 (en) 1982-04-22
FR2489039A1 (en) 1982-02-26

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Legal Events

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

Effective date: 19930817