ES418972A1 - Apparatus and method for eliminating microcracks in alumina ceramic discharge devices - Google Patents

Apparatus and method for eliminating microcracks in alumina ceramic discharge devices

Info

Publication number
ES418972A1
ES418972A1 ES418972A ES418972A ES418972A1 ES 418972 A1 ES418972 A1 ES 418972A1 ES 418972 A ES418972 A ES 418972A ES 418972 A ES418972 A ES 418972A ES 418972 A1 ES418972 A1 ES 418972A1
Authority
ES
Spain
Prior art keywords
lead
arc tube
ceramic discharge
frame
envelope
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
ES418972A
Other languages
Spanish (es)
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ES418972A1 publication Critical patent/ES418972A1/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
    • H01J61/50—Auxiliary parts or solid material within the envelope for reducing risk of explosion upon breakage of the envelope, e.g. for use in mines

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

A ceramic discharge device including an outer vitreous envelope sealed to a metallic base, a pair of lead-in conductors connected to the base and extending into the envelope with one of the lead-in conductors connected to one end of an alumina arc tube mounted within the outer envelope and the other lead-in conductor forming a portion of a support frame for the arc tube and being connected to the other end of the arc tube. The lead-in conductor forming a portion of the support frame being constructed of stainless steel and having a chrome oxide coating formed on its surface. Additionally, a non-photoelectron emissive element forming a photoelectron collector electrically connected to the first lead-in conductor may be interposed between the arc tube and the second lead-in conductor forming a portion of the frame and, if desired, the lower portion of the frame may be surrounded by a quartz or ceramic sleeve.
ES418972A 1972-09-22 1973-09-21 Apparatus and method for eliminating microcracks in alumina ceramic discharge devices Expired ES418972A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29148972A 1972-09-22 1972-09-22

Publications (1)

Publication Number Publication Date
ES418972A1 true ES418972A1 (en) 1976-07-01

Family

ID=23120505

Family Applications (1)

Application Number Title Priority Date Filing Date
ES418972A Expired ES418972A1 (en) 1972-09-22 1973-09-21 Apparatus and method for eliminating microcracks in alumina ceramic discharge devices

Country Status (10)

Country Link
US (1) US3780331A (en)
JP (1) JPS5245431B2 (en)
BE (1) BE805060A (en)
CA (1) CA984441A (en)
DE (1) DE2346132A1 (en)
ES (1) ES418972A1 (en)
FR (1) FR2200617B1 (en)
GB (1) GB1439045A (en)
IT (1) IT995463B (en)
NL (1) NL7313047A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878421A (en) * 1974-01-31 1975-04-15 Atlantic Ultraviolet Corp High intensity ultraviolet lamp and method for producing the same
US4037128A (en) * 1975-09-12 1977-07-19 Izrail Aronovich Levin Three-phase discharge lamp
US4333032A (en) * 1978-09-25 1982-06-01 Gte Products Corporation High pressure sodium lamp containing barium getter
US4281274A (en) * 1979-08-01 1981-07-28 General Electric Co. Discharge lamp having vitreous shield
HU183876B (en) * 1982-04-02 1984-06-28 Egyesuelt Izzolampa Metal halogenid lamp
JPS59214154A (en) * 1983-05-18 1984-12-04 Matsushita Electronics Corp Glow switch
US4963790A (en) * 1985-12-27 1990-10-16 Gte Products Corporation Low wattage metal halide discharge lamp
HU205485B (en) * 1986-10-20 1992-04-28 Tungsram Reszvenytarsasag Metal halogen discharge lamp containing alkali-halogenide additive
US4866328A (en) * 1988-04-15 1989-09-12 North American Philips Corp. Electric lamp with reduced internal photoelectron production
DE9002959U1 (en) * 1990-03-15 1990-05-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München High pressure discharge lamp
US5272407A (en) * 1991-12-18 1993-12-21 North American Philips Corporation Electric lamp having screens for reducing photo electron emission
WO2001039246A1 (en) * 1999-11-22 2001-05-31 Koninklijke Philips Electronics N.V. High-pressure discharge lamp
WO2005001886A2 (en) * 2003-06-30 2005-01-06 Koninklijke Philips Electronics, N.V. Strapless mount for a light source and electric lamp having the same
DE102005038551B3 (en) * 2005-08-12 2007-04-05 W.C. Heraeus Gmbh Wire and frame for single-ended lamps based on niobium or tantalum, as well as manufacturing process and use
SE530760C2 (en) * 2007-05-24 2008-09-09 Auralight Int Ab High-pressure sodium lamp
DE102007046899B3 (en) * 2007-09-28 2009-02-12 W.C. Heraeus Gmbh Halogen metal vapor lamp comprises a ceramic housing and a current feed-through arranged in the ceramic housing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6703447A (en) * 1967-03-03 1968-09-04
GB1223955A (en) * 1969-05-16 1971-03-03 Narva Veb High pressure electric discharge lamp
JPS4713360U (en) * 1971-03-09 1972-10-17
JPS4825985A (en) * 1971-08-10 1973-04-04

Also Published As

Publication number Publication date
BE805060A (en) 1974-03-20
JPS5245431B2 (en) 1977-11-16
JPS4976359A (en) 1974-07-23
DE2346132A1 (en) 1974-03-28
GB1439045A (en) 1976-06-09
NL7313047A (en) 1974-03-26
FR2200617A1 (en) 1974-04-19
FR2200617B1 (en) 1977-10-14
CA984441A (en) 1976-02-24
US3780331A (en) 1973-12-18
IT995463B (en) 1975-11-10

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