SE304555B - - Google Patents

Info

Publication number
SE304555B
SE304555B SE10204/63A SE1020463A SE304555B SE 304555 B SE304555 B SE 304555B SE 10204/63 A SE10204/63 A SE 10204/63A SE 1020463 A SE1020463 A SE 1020463A SE 304555 B SE304555 B SE 304555B
Authority
SE
Sweden
Prior art keywords
lamp
ba3wo6
reducing agent
voltage
tungsten
Prior art date
Application number
SE10204/63A
Inventor
P Bleukens
J Schuitemaker
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of SE304555B publication Critical patent/SE304555B/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/22—Exhausting, degassing, filling, or cleaning vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/183—Composition or manufacture of getters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
    • H01K1/56—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering characterised by the material of the getter

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Gas Separation By Absorption (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Luminescent Compositions (AREA)

Abstract

A getter layer of magnesium, calcium, strontium or barium or a mixture thereof for e.g. an incandescent lamp is provided by heating in the lamp, in contact with a reducing agent, a material of the general formula (MeO)nXOm where Me is Mg, Ca, Sr, Ba, n is greater than 1, X is a metal and m is the valency of X divided by 2. Examples of the material are Ba3WO6, Ba2CaMoO6, Ba2TiO4, Ba3TaO5.5, BaSr2MoO6 and Ba2LaTaO6. In an example a tungsten filament of an incandescent lamp is coated with Ba3WO6 by dipping, spraying, painting or cataphoresis. The lamp after degassing and sealing is then burnt at a voltage 10-15% higher than the normal lamp voltage. The reducing agent may be phosphorus, tungsten or zirconium.
SE10204/63A 1962-09-21 1963-09-18 SE304555B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL283516 1962-09-21

Publications (1)

Publication Number Publication Date
SE304555B true SE304555B (en) 1968-09-30

Family

ID=19754127

Family Applications (1)

Application Number Title Priority Date Filing Date
SE10204/63A SE304555B (en) 1962-09-21 1963-09-18

Country Status (9)

Country Link
US (1) US3266861A (en)
AT (1) AT238313B (en)
BE (1) BE637608A (en)
CH (1) CH434461A (en)
DK (1) DK105817C (en)
ES (1) ES291801A1 (en)
GB (1) GB1013704A (en)
NL (1) NL283516A (en)
SE (1) SE304555B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321503A (en) * 1978-11-06 1982-03-23 Westinghouse Electric Corp. HID Lamp electrode comprising barium-calcium niobate or tantalate
USRE35098E (en) * 1979-12-20 1995-11-28 Modine Manufacturing Co. Method of making a heat exchanger
DE3335602A1 (en) * 1983-09-30 1985-04-18 Siemens AG, 1000 Berlin und 8000 München GAS DISCHARGE ARRESTER AND MANUFACTURING METHOD
IT1173865B (en) * 1984-03-16 1987-06-24 Getters Spa PERFECT METHOD FOR MANUFACTURING PORTABLE NON-EVAPORABLE GETTER DEVICES AND GETTER DEVICES SO PRODUCTS
IT1173866B (en) * 1984-03-16 1987-06-24 Getters Spa PERFECT METHOD FOR MANUFACTURING NON-VARIABLE PORTABLE GETTER DEVICES AND GETTER DEVICES SO PRODUCED
IT1246784B (en) * 1991-04-16 1994-11-26 Getters Spa PROCEDURE FOR ABSORBING RESIDUAL GASES THROUGH AN UNEVAPORATED BARIUM GETTER ALLOY.

Also Published As

Publication number Publication date
NL283516A (en)
DK105817C (en) 1966-11-14
ES291801A1 (en) 1963-11-01
AT238313B (en) 1965-02-10
DE1489409B2 (en) 1972-10-19
DE1489409A1 (en) 1969-03-13
GB1013704A (en) 1965-12-22
CH434461A (en) 1967-04-30
US3266861A (en) 1966-08-16
BE637608A (en)

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