DE3169958D1 - High pressure sodium lamp having improved efficacy - Google Patents

High pressure sodium lamp having improved efficacy

Info

Publication number
DE3169958D1
DE3169958D1 DE8181104390T DE3169958T DE3169958D1 DE 3169958 D1 DE3169958 D1 DE 3169958D1 DE 8181104390 T DE8181104390 T DE 8181104390T DE 3169958 T DE3169958 T DE 3169958T DE 3169958 D1 DE3169958 D1 DE 3169958D1
Authority
DE
Germany
Prior art keywords
high pressure
pressure sodium
sodium lamp
improved efficacy
efficacy
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
DE8181104390T
Other languages
German (de)
English (en)
Inventor
John F Waymouth
Elliot F Wyner
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 DE3169958D1 publication Critical patent/DE3169958D1/de
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
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/825—High-pressure sodium lamps
DE8181104390T 1980-06-06 1981-06-06 High pressure sodium lamp having improved efficacy Expired DE3169958D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15699680A 1980-06-06 1980-06-06

Publications (1)

Publication Number Publication Date
DE3169958D1 true DE3169958D1 (en) 1985-05-23

Family

ID=22561939

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181104390T Expired DE3169958D1 (en) 1980-06-06 1981-06-06 High pressure sodium lamp having improved efficacy

Country Status (4)

Country Link
EP (1) EP0041721B1 (enrdf_load_stackoverflow)
JP (1) JPH0211717Y2 (enrdf_load_stackoverflow)
CA (1) CA1203559A (enrdf_load_stackoverflow)
DE (1) DE3169958D1 (enrdf_load_stackoverflow)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1266181A (fr) * 1960-08-26 1961-07-07 Lampes Sa Lampes à décharge à enveloppe en alumine transparente
JPS5710543B2 (enrdf_load_stackoverflow) * 1972-03-16 1982-02-26
US3906272A (en) * 1974-04-01 1975-09-16 Gen Electric Low wattage high pressure sodium vapor lamps
GB1597162A (en) * 1977-03-10 1981-09-03 Ngk Insulators Ltd Transparent polycrystalline alumina and high pressure vapour discharge lamp

Also Published As

Publication number Publication date
JPH0211717Y2 (enrdf_load_stackoverflow) 1990-03-28
EP0041721A2 (en) 1981-12-16
JPS572567U (enrdf_load_stackoverflow) 1982-01-07
EP0041721B1 (en) 1985-04-17
CA1203559A (en) 1986-04-22
EP0041721A3 (en) 1982-09-15

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee