GB1361773A - High-pressure discharge lamp - Google Patents

High-pressure discharge lamp

Info

Publication number
GB1361773A
GB1361773A GB772573A GB772573A GB1361773A GB 1361773 A GB1361773 A GB 1361773A GB 772573 A GB772573 A GB 772573A GB 772573 A GB772573 A GB 772573A GB 1361773 A GB1361773 A GB 1361773A
Authority
GB
United Kingdom
Prior art keywords
lamp
alumina
resistance
cermet
current
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
GB772573A
Other languages
English (en)
Inventor
B R Schat
A Timmermans
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1361773A publication Critical patent/GB1361773A/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
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/366—Seals for leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/361—Seals between parts of vessel
    • H01J61/363—End-disc seals or plug seals

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
GB772573A 1972-02-21 1973-02-16 High-pressure discharge lamp Expired GB1361773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7202269,A NL170574C (nl) 1972-02-21 1972-02-21 Hogedrukontladingslamp.

Publications (1)

Publication Number Publication Date
GB1361773A true GB1361773A (en) 1974-07-30

Family

ID=19815430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB772573A Expired GB1361773A (en) 1972-02-21 1973-02-16 High-pressure discharge lamp

Country Status (12)

Country Link
US (1) US3885184A (US08124630-20120228-C00152.png)
JP (1) JPS5629335B2 (US08124630-20120228-C00152.png)
AT (1) AT327320B (US08124630-20120228-C00152.png)
BE (1) BE795679A (US08124630-20120228-C00152.png)
CA (1) CA963075A (US08124630-20120228-C00152.png)
DE (1) DE2307189C3 (US08124630-20120228-C00152.png)
ES (1) ES411788A1 (US08124630-20120228-C00152.png)
FR (1) FR2173091B1 (US08124630-20120228-C00152.png)
GB (1) GB1361773A (US08124630-20120228-C00152.png)
IT (1) IT977810B (US08124630-20120228-C00152.png)
NL (1) NL170574C (US08124630-20120228-C00152.png)
SE (1) SE377224B (US08124630-20120228-C00152.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2655726A1 (de) * 1975-12-09 1977-06-16 Thorn Electrical Ind Ltd Elektrisch leitende metallkeramiken und verfahren zu ihrer herstellung
EP0028885A1 (en) * 1979-11-12 1981-05-20 Thorn Emi Plc An electrically conducting cermet, its production and use
US4808882A (en) * 1985-08-03 1989-02-28 Thorn Emi Plc High pressure discharge lamp with overhung end arc tube and cermet ends

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU179748B (en) * 1974-01-15 1982-12-28 Ferenc Puskas Cathode of a metal ceramic sintered body produced by dust metalurgy for closing discharge tube of sodium vapour lamp and process for the production thereof
US3996487A (en) * 1975-05-14 1976-12-07 Westinghouse Electric Corporation Ceramic discharge lamp with reduced heat drain
GB1571084A (en) * 1975-12-09 1980-07-09 Thorn Electrical Ind Ltd Electric lamps and components and materials therefor
CA1082909A (en) * 1976-03-09 1980-08-05 Thorn Electrical Industries Limited Electric lamps and components and materials therefor
US4599543A (en) * 1983-10-14 1986-07-08 General Electric Company Time fuse for high pressure sodium lamps
JPS6161338A (ja) * 1984-08-31 1986-03-29 Ngk Insulators Ltd 高圧金属蒸気放電灯用発光管の製造方法
US5404078A (en) * 1991-08-20 1995-04-04 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh High-pressure discharge lamp and method of manufacture

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880369A (en) * 1957-07-10 1959-03-31 Engelhard Ind Inc High pressure vapor arc lamp
US3480823A (en) * 1966-08-12 1969-11-25 Westinghouse Electric Corp Sealed discharge device
US3742283A (en) * 1971-10-28 1973-06-26 Gte Sylvania Inc Press seal for lamp having fused silica envelope

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2655726A1 (de) * 1975-12-09 1977-06-16 Thorn Electrical Ind Ltd Elektrisch leitende metallkeramiken und verfahren zu ihrer herstellung
EP0028885A1 (en) * 1979-11-12 1981-05-20 Thorn Emi Plc An electrically conducting cermet, its production and use
US4808882A (en) * 1985-08-03 1989-02-28 Thorn Emi Plc High pressure discharge lamp with overhung end arc tube and cermet ends

Also Published As

Publication number Publication date
AT327320B (de) 1976-01-26
JPS4897383A (US08124630-20120228-C00152.png) 1973-12-12
DE2307189A1 (de) 1973-08-30
IT977810B (it) 1974-09-20
DE2307189B2 (de) 1981-04-02
JPS5629335B2 (US08124630-20120228-C00152.png) 1981-07-08
US3885184A (en) 1975-05-20
ES411788A1 (es) 1976-01-01
BE795679A (fr) 1973-08-20
DE2307189C3 (de) 1981-12-17
NL170574C (nl) 1982-11-16
FR2173091B1 (US08124630-20120228-C00152.png) 1977-12-23
FR2173091A1 (US08124630-20120228-C00152.png) 1973-10-05
AU5224073A (en) 1974-08-22
SE377224B (US08124630-20120228-C00152.png) 1975-06-23
ATA144573A (de) 1975-04-15
NL170574B (nl) 1982-06-16
CA963075A (en) 1975-02-18
NL7202269A (US08124630-20120228-C00152.png) 1973-08-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee