FR2080287A5 - - Google Patents

Info

Publication number
FR2080287A5
FR2080287A5 FR7014805A FR7014805A FR2080287A5 FR 2080287 A5 FR2080287 A5 FR 2080287A5 FR 7014805 A FR7014805 A FR 7014805A FR 7014805 A FR7014805 A FR 7014805A FR 2080287 A5 FR2080287 A5 FR 2080287A5
Authority
FR
France
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
FR7014805A
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR2080287A5 publication Critical patent/FR2080287A5/fr
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
FR7014805A 1970-02-28 1970-04-23 Expired FR2080287A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7002894.A NL165885C (en) 1970-02-28 1970-02-28 LOW PRESSURE SODIUM VAPOR DISCHARGE LAMP.

Publications (1)

Publication Number Publication Date
FR2080287A5 true FR2080287A5 (en) 1971-11-12

Family

ID=19809463

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7014805A Expired FR2080287A5 (en) 1970-02-28 1970-04-23

Country Status (7)

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

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 (en) * 1955-10-18 1958-06-18 Philips Nv Discharge tube, especially in sodium vapor and gas filled

Also Published As

Publication number Publication date
NL165885C (en) 1981-05-15
DE2027265B2 (en) 1978-04-20
GB1243000A (en) 1971-08-18
DE2027265C3 (en) 1978-12-14
JPS4942396B1 (en) 1974-11-14
DE2027265A1 (en) 1971-12-02
NL165885B (en) 1980-12-15
NL7002894A (en) 1971-08-31
BE749235A (en) 1970-10-20
US3646378A (en) 1972-02-29

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Legal Events

Date Code Title Description
ST Notification of lapse