DE2550513C3 - Niederdruck-Natriumdampfentladungslampe - Google Patents

Niederdruck-Natriumdampfentladungslampe

Info

Publication number
DE2550513C3
DE2550513C3 DE2550513A DE2550513A DE2550513C3 DE 2550513 C3 DE2550513 C3 DE 2550513C3 DE 2550513 A DE2550513 A DE 2550513A DE 2550513 A DE2550513 A DE 2550513A DE 2550513 C3 DE2550513 C3 DE 2550513C3
Authority
DE
Germany
Prior art keywords
reflector
outer bulb
pressure sodium
longitudinal axis
discharge 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
DE2550513A
Other languages
German (de)
English (en)
Other versions
DE2550513A1 (de
DE2550513B2 (de
Inventor
Jan Jacob Balder
Henricus Johannes Joseph Van Boort (Verstorben)
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 DE2550513A1 publication Critical patent/DE2550513A1/de
Publication of DE2550513B2 publication Critical patent/DE2550513B2/de
Application granted granted Critical
Publication of DE2550513C3 publication Critical patent/DE2550513C3/de
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/30Vessels; Containers
    • H01J61/34Double-wall vessels or containers

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
DE2550513A 1974-11-14 1975-11-11 Niederdruck-Natriumdampfentladungslampe Expired DE2550513C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7414849.A NL166818C (nl) 1974-11-14 1974-11-14 Lagedruknatriumdampontladingslamp.

Publications (3)

Publication Number Publication Date
DE2550513A1 DE2550513A1 (de) 1976-05-26
DE2550513B2 DE2550513B2 (de) 1979-05-10
DE2550513C3 true DE2550513C3 (de) 1980-01-17

Family

ID=19822470

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2550513A Expired DE2550513C3 (de) 1974-11-14 1975-11-11 Niederdruck-Natriumdampfentladungslampe

Country Status (8)

Country Link
US (1) US3995182A (https=)
JP (2) JPS5172188A (https=)
BE (1) BE835515A (https=)
CA (1) CA1043410A (https=)
DE (1) DE2550513C3 (https=)
FR (1) FR2291606A1 (https=)
GB (1) GB1507217A (https=)
NL (1) NL166818C (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL180464C (nl) * 1976-10-29 1987-02-16 Philips Nv Lagedruknatriumdampontladingslamp.
US4080545A (en) * 1976-12-27 1978-03-21 Xerox Corporation Sodium vapor lamp with emission aperture
US4678960A (en) * 1985-08-01 1987-07-07 General Electric Company Metallic halide electric discharge lamps
JPH0348856U (https=) * 1989-09-19 1991-05-10

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB494192A (en) * 1937-07-13 1938-10-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Improvements in high pressure metal vapour electric discharge lamps
FR1199913A (fr) * 1957-07-18 1959-12-17 Philips Nv Tube à décharge dans la vapeur de sodium, présentant la forme d'un u
US3225241A (en) * 1959-07-09 1965-12-21 Sylvania Electric Prod Aperture fluorescent lamp
US3162785A (en) * 1960-04-22 1964-12-22 Sylvania Electric Prod Projection lamp
US3174067A (en) * 1960-07-21 1965-03-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Construction for projection lamps eliminating undesired infrared radiation
US3179792A (en) * 1962-09-06 1965-04-20 Weiss Harry Fluorescent lamp
US3188513A (en) * 1963-04-10 1965-06-08 Gen Electric Optical filters and lamps embodying the same
DE1260627B (de) * 1965-11-13 1968-02-08 Philips Nv Natriumdampfentladungslampe
US3767956A (en) * 1969-12-24 1973-10-23 Xerox Corp Aperture fluorescent lamp for copying machines

Also Published As

Publication number Publication date
GB1507217A (en) 1978-04-12
CA1043410A (en) 1978-11-28
JPS5172188A (https=) 1976-06-22
US3995182A (en) 1976-11-30
NL166818B (nl) 1981-04-15
DE2550513A1 (de) 1976-05-26
NL7414849A (nl) 1976-05-18
JPS55171963U (https=) 1980-12-10
FR2291606B1 (https=) 1979-07-06
FR2291606A1 (fr) 1976-06-11
NL166818C (nl) 1981-09-15
BE835515A (fr) 1976-05-12
DE2550513B2 (de) 1979-05-10

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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