DE2027265C3 - Niederdruck-Natriumdampf-Entladungslampe - Google Patents

Niederdruck-Natriumdampf-Entladungslampe

Info

Publication number
DE2027265C3
DE2027265C3 DE2027265A DE2027265A DE2027265C3 DE 2027265 C3 DE2027265 C3 DE 2027265C3 DE 2027265 A DE2027265 A DE 2027265A DE 2027265 A DE2027265 A DE 2027265A DE 2027265 C3 DE2027265 C3 DE 2027265C3
Authority
DE
Germany
Prior art keywords
electrode
wart
discharge tube
protuberances
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.)
Expired
Application number
DE2027265A
Other languages
German (de)
English (en)
Other versions
DE2027265A1 (de
DE2027265B2 (de
Inventor
Urbaan Paul Marguerite Elversele-Waasmunster Goossens (Belgien)
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 DE2027265A1 publication Critical patent/DE2027265A1/de
Publication of DE2027265B2 publication Critical patent/DE2027265B2/de
Application granted granted Critical
Publication of DE2027265C3 publication Critical patent/DE2027265C3/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
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium
    • 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
    • H01J61/34—Double-wall vessels or containers

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
DE2027265A 1970-02-28 1970-06-03 Niederdruck-Natriumdampf-Entladungslampe Expired DE2027265C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7002894.A NL165885C (nl) 1970-02-28 1970-02-28 Lagedruknatriumdampontladingslamp.

Publications (3)

Publication Number Publication Date
DE2027265A1 DE2027265A1 (de) 1971-12-02
DE2027265B2 DE2027265B2 (de) 1978-04-20
DE2027265C3 true DE2027265C3 (de) 1978-12-14

Family

ID=19809463

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2027265A Expired DE2027265C3 (de) 1970-02-28 1970-06-03 Niederdruck-Natriumdampf-Entladungslampe

Country Status (7)

Country Link
US (1) US3646378A (enExample)
JP (1) JPS4942396B1 (enExample)
BE (1) BE749235A (enExample)
DE (1) DE2027265C3 (enExample)
FR (1) FR2080287A5 (enExample)
GB (1) GB1243000A (enExample)
NL (1) NL165885C (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731560A (en) * 1970-08-06 1988-03-15 Owens-Illinois Television Products, Inc. Multiple gaseous discharge display/memory panel having improved operating life
US4794308A (en) * 1970-08-06 1988-12-27 Owens-Illinois Television Products Inc. Multiple gaseous discharge display/memory panel having improved operating life
US4028578A (en) * 1973-02-16 1977-06-07 Owens-Illinois, Inc. Gas discharge dielectric containing a source of boron, gallium, indium, or thallium
US4080545A (en) * 1976-12-27 1978-03-21 Xerox Corporation Sodium vapor lamp with emission aperture

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB817100A (en) * 1955-12-22 1959-07-22 Gen Electric Co Ltd Improvements in or relating to electric discharge lamps
FR1158700A (fr) * 1955-10-18 1958-06-18 Philips Nv Tube à décharge, en particulier dans la vapeur de sodium et à remplissage gazeux

Also Published As

Publication number Publication date
NL165885B (nl) 1980-12-15
US3646378A (en) 1972-02-29
GB1243000A (en) 1971-08-18
FR2080287A5 (enExample) 1971-11-12
BE749235A (fr) 1970-10-20
DE2027265A1 (de) 1971-12-02
JPS4942396B1 (enExample) 1974-11-14
DE2027265B2 (de) 1978-04-20
NL7002894A (enExample) 1971-08-31
NL165885C (nl) 1981-05-15

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee