GB1382934A - Highpressure discharge lamp having a metal lead-through conductor - Google Patents

Highpressure discharge lamp having a metal lead-through conductor

Info

Publication number
GB1382934A
GB1382934A GB772773A GB772773A GB1382934A GB 1382934 A GB1382934 A GB 1382934A GB 772773 A GB772773 A GB 772773A GB 772773 A GB772773 A GB 772773A GB 1382934 A GB1382934 A GB 1382934A
Authority
GB
United Kingdom
Prior art keywords
conductor
closure
cermet
wall
metal lead
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
GB772773A
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 GB1382934A publication Critical patent/GB1382934A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

1382934 Ceramic-metal seats PHILIPS ELECTRONIC & ASSOCIATED INDUS TRIES Ltd 16 Feb 1973 [21 Feb 1972] 7727/73 Heading B3V [Also in Division H1] A member 5, closing the wall 4 of the discharge vessel of a high pressure lamp consisting largely of alumina or sapphire at least at the location of the closure, is made of an alumina cermet and is penetrated with direct mechanical contact by a metal lead-in conductor 7, the coefficient of expansion of the cermet being between that of the wall 4 and that of the conductor 7. The conductor 7 may be Mo and the metal of the cermet may be Fe or preferably Mo. The seal between the tube 7 and closure 5 is effected by sintering the closure in a hydrogen atmosphere. Glass seals are used between the closure 5 and wall 4.
GB772773A 1972-02-21 1973-02-16 Highpressure discharge lamp having a metal lead-through conductor Expired GB1382934A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7202270A NL172012C (en) 1972-02-21 1972-02-21 HIGH PRESSURE DISCHARGE LAMP WITH A METAL TRANSIT CONDUCTOR.

Publications (1)

Publication Number Publication Date
GB1382934A true GB1382934A (en) 1975-02-05

Family

ID=19815431

Family Applications (1)

Application Number Title Priority Date Filing Date
GB772773A Expired GB1382934A (en) 1972-02-21 1973-02-16 Highpressure discharge lamp having a metal lead-through conductor

Country Status (11)

Country Link
JP (1) JPS5517466B2 (en)
AT (1) AT327321B (en)
BE (1) BE795680A (en)
CA (1) CA963076A (en)
DE (1) DE2307192C3 (en)
ES (1) ES411787A1 (en)
FR (1) FR2173092B1 (en)
GB (1) GB1382934A (en)
IT (1) IT977811B (en)
NL (1) NL172012C (en)
SE (1) SE377225B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011993A1 (en) * 1978-12-01 1980-06-11 Thorn Emi Plc Electric discharge lamps
EP0028885A1 (en) * 1979-11-12 1981-05-20 Thorn Emi Plc An electrically conducting cermet, its production and use
US4563214A (en) * 1982-11-18 1986-01-07 Thorn Emi Plc End closure members for discharge lamps
GB2178230A (en) * 1985-07-02 1987-02-04 Tungsram Reszvenytarsasag Discharge lamp with noble gas filling, especially for pulse operation
EP0944111A1 (en) * 1998-03-18 1999-09-22 Ngk Insulators, Ltd. High pressure discharge lamp

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035789B2 (en) * 1975-02-05 1985-08-16 株式会社日立製作所 Tube body for discharge lamp
NZ182774A (en) * 1975-12-09 1979-06-19 Thorn Electrical Ind Ltd Electrically conducting cermet
DE2713702B2 (en) * 1977-03-28 1979-10-31 Heimann Gmbh, 6200 Wiesbaden Gas discharge lamp
US5404078A (en) * 1991-08-20 1995-04-04 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh High-pressure discharge lamp and method of manufacture
DE9112690U1 (en) * 1991-10-11 1991-12-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München High pressure discharge lamp
DE4242122A1 (en) * 1992-12-14 1994-06-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Process for producing a vacuum-tight seal between a ceramic and a metallic partner, in particular for use in the manufacture of a discharge vessel for a lamp, and discharge vessels and lamps produced therewith
DE102005058897A1 (en) * 2005-12-09 2007-06-14 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH metal halide

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1257964B (en) * 1965-03-11 1968-01-04 Patra Patent Treuhand Electric lamp, in particular alkali metal vapor discharge lamp, with a vessel made of transparent aluminum oxide

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011993A1 (en) * 1978-12-01 1980-06-11 Thorn Emi Plc Electric discharge lamps
EP0028885A1 (en) * 1979-11-12 1981-05-20 Thorn Emi Plc An electrically conducting cermet, its production and use
US4563214A (en) * 1982-11-18 1986-01-07 Thorn Emi Plc End closure members for discharge lamps
GB2178230A (en) * 1985-07-02 1987-02-04 Tungsram Reszvenytarsasag Discharge lamp with noble gas filling, especially for pulse operation
EP0944111A1 (en) * 1998-03-18 1999-09-22 Ngk Insulators, Ltd. High pressure discharge lamp
US6262533B1 (en) * 1998-03-18 2001-07-17 Ngk Insulators, Ltd. Starting electrode for high pressure discharge lamp

Also Published As

Publication number Publication date
SE377225B (en) 1975-06-23
DE2307192C3 (en) 1982-04-08
AU5212573A (en) 1974-08-15
NL172012B (en) 1983-01-17
NL172012C (en) 1983-06-16
DE2307192A1 (en) 1973-08-30
CA963076A (en) 1975-02-18
JPS5517466B2 (en) 1980-05-12
IT977811B (en) 1974-09-20
FR2173092A1 (en) 1973-10-05
FR2173092B1 (en) 1977-12-23
DE2307192B2 (en) 1981-08-13
AT327321B (en) 1976-01-26
NL7202270A (en) 1973-08-23
ES411787A1 (en) 1976-01-01
JPS4897384A (en) 1973-12-12
BE795680A (en) 1973-08-20
ATA144773A (en) 1975-04-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee