SE307192B - - Google Patents

Info

Publication number
SE307192B
SE307192B SE1268963A SE1268963A SE307192B SE 307192 B SE307192 B SE 307192B SE 1268963 A SE1268963 A SE 1268963A SE 1268963 A SE1268963 A SE 1268963A SE 307192 B SE307192 B SE 307192B
Authority
SE
Sweden
Prior art keywords
phosphorus
nov
tungsten
lamp
phosphide
Prior art date
Application number
SE1268963A
Inventor
L Bouwman
R Meijer
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 SE307192B publication Critical patent/SE307192B/xx

Links

Classifications

    • 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

  • Resistance Heating (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

1,023,850. Electric incandescent lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 15, 1963 [Nov. 19, 1962], No. 45210/63. Heading H1F. A small quantity, e.g. of the order of 10<SP>-3</SP>mg. or less per sq. cm. of bulb surface, of phosphorus is introduced into a tungsten-iodine lamp. The phosphorus may be introduced by coating the filament with a suspension of phosphorus nitride or tungsten phosphide or by heating the filaments in phosphorus vapour. A volatile phosphorus compound, e.g. hydrogen phosphide, may be introduced into the lamp.
SE1268963A 1962-11-19 1963-11-18 SE307192B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL285666 1962-11-19

Publications (1)

Publication Number Publication Date
SE307192B true SE307192B (en) 1968-12-23

Family

ID=19754236

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1268963A SE307192B (en) 1962-11-19 1963-11-18

Country Status (8)

Country Link
AT (1) AT239910B (en)
BE (1) BE640154A (en)
CH (1) CH427998A (en)
DK (1) DK104249C (en)
ES (1) ES293588A1 (en)
GB (1) GB1023850A (en)
NL (1) NL285666A (en)
SE (1) SE307192B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE795435A (en) * 1972-02-16 1973-08-14 Philips Nv ELECTRIC INCANDESCENCE LAMP WITH TUNGSTENE-BROMINE CYCLE
BE795436A (en) * 1972-02-16 1973-08-14 Philips Nv ELECTRICAL INCANDESCENCE LAMP WITH TUNGSTENE-BROMINE CYCLE
US4027189A (en) * 1973-11-01 1977-05-31 Thorn Electrical Industries Limited Tungsten halogen lamp

Also Published As

Publication number Publication date
CH427998A (en) 1967-01-15
NL285666A (en)
BE640154A (en) 1964-05-19
GB1023850A (en) 1966-03-30
ES293588A1 (en) 1964-01-01
DK104249C (en) 1966-04-25
AT239910B (en) 1965-05-10

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