DE3475855D1 - Unsaturated vapor pressure type high pressure sodium lamp - Google Patents

Unsaturated vapor pressure type high pressure sodium lamp

Info

Publication number
DE3475855D1
DE3475855D1 DE8484301612T DE3475855T DE3475855D1 DE 3475855 D1 DE3475855 D1 DE 3475855D1 DE 8484301612 T DE8484301612 T DE 8484301612T DE 3475855 T DE3475855 T DE 3475855T DE 3475855 D1 DE3475855 D1 DE 3475855D1
Authority
DE
Germany
Prior art keywords
type high
sodium lamp
high pressure
unsaturated vapor
vapor 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
DE8484301612T
Other languages
German (de)
Inventor
Philip J White
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.)
Osram Sylvania Inc
Original Assignee
GTE Products Corp
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 GTE Products Corp filed Critical GTE Products Corp
Application granted granted Critical
Publication of DE3475855D1 publication Critical patent/DE3475855D1/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
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/825—High-pressure sodium lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/26—Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope
DE8484301612T 1983-03-10 1984-03-09 Unsaturated vapor pressure type high pressure sodium lamp Expired DE3475855D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47389583A 1983-03-10 1983-03-10

Publications (1)

Publication Number Publication Date
DE3475855D1 true DE3475855D1 (en) 1989-02-02

Family

ID=23881464

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484301612T Expired DE3475855D1 (en) 1983-03-10 1984-03-09 Unsaturated vapor pressure type high pressure sodium lamp

Country Status (5)

Country Link
EP (1) EP0123397B1 (en)
JP (1) JPS59169050A (en)
AU (1) AU578603B2 (en)
CA (1) CA1222273A (en)
DE (1) DE3475855D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282657A1 (en) * 1987-03-16 1988-09-21 Iwasaki Electric Co., Ltd. High pressure sodium vapor lamp having unsaturated vapor pressure type characteristics
JP2928813B2 (en) * 1988-02-10 1999-08-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Unsaturated high pressure sodium lamp

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203901A (en) * 1962-02-15 1965-08-31 Porta Paolo Della Method of manufacturing zirconiumaluminum alloy getters
US3384798A (en) * 1966-04-26 1968-05-21 Gen Electric High pressure saturation vapor sodium lamp containing mercury
US3453477A (en) * 1967-02-16 1969-07-01 Gen Electric Alumina-ceramic sodium vapor lamp
GB1211176A (en) * 1967-02-16 1970-11-04 Gen Electric High-pressure sodium vapor lamp
US3485343A (en) * 1967-08-28 1969-12-23 Gen Electric Oxygen getter for high pressure sodium vapor lamp
US3727089A (en) * 1970-06-24 1973-04-10 S Chow Small sized stroboscopic tube for photographic use
US3805105A (en) * 1971-06-30 1974-04-16 Gte Sylvania Inc High pressure electric discharge device with zirconium-aluminum getter
US4025812A (en) * 1975-10-14 1977-05-24 General Electric Company Alumina ceramic alkali metal lamp having metal getter structure
HU172230B (en) * 1976-04-07 1978-07-28 Egyesuelt Izzolampa High-pressure discharge lamp with metallo-haloid additional material
US4075530A (en) * 1976-04-21 1978-02-21 Japan Storage Battery Company Limited High pressure sodium vapor lamp of unsaturated vapor pressure type
CA1214196A (en) * 1983-02-14 1986-11-18 Jack M. Strok Color rendition high pressure sodium arc tubes having an oxygen getter

Also Published As

Publication number Publication date
AU578603B2 (en) 1988-11-03
AU2547884A (en) 1984-09-13
CA1222273A (en) 1987-05-26
EP0123397B1 (en) 1988-12-28
JPS59169050A (en) 1984-09-22
EP0123397A1 (en) 1984-10-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee