GB398829A - Improvements in electric gaseous discharge lamps - Google Patents

Improvements in electric gaseous discharge lamps

Info

Publication number
GB398829A
GB398829A GB5061/32A GB506132A GB398829A GB 398829 A GB398829 A GB 398829A GB 5061/32 A GB5061/32 A GB 5061/32A GB 506132 A GB506132 A GB 506132A GB 398829 A GB398829 A GB 398829A
Authority
GB
United Kingdom
Prior art keywords
wire
anode
tube
electrode
electron
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
GB5061/32A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB398829A publication Critical patent/GB398829A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/70Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr

Landscapes

  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

398,829. Discharge lamps. LEDERER, A., Hermesvilla, Vienna. Feb. 19, 1932, No. 5061. Convention date, Feb. 20, 1931. [Class 39 (i).] Direct-current electric gaseous discharge lamps of the kind described in Specifications 364,088 and 371,372, wherein one or more heated, electron - emissive electrodes in an atmosphere-of a rare gas or gases produce an intense core light or aureole adjacent to and all around the hot electrode or electrodes, and a feebler lighting outer zone or shell, the anode is formed of rods or wire so as to have a small total surface area and surrounds the electron-emissive electrode or its imaginary extension so as to provide a substantially uniform, or at least symmetrical, electric field around the electron-emissive electrode. In one form the anode 10, Fig. 1, consists of a wire arranged as a helix with its axis substantially coincident with the axis of the tubular hot cathode 2, a wire 17 serving as a support for the wire helix. The hot cathode 2 consists of a nickel tube with a thermionic active coating and a heating filament 3 passing through the interior, the lower end of the filament being connected to a leading in wire 4 and the upper end connected through the anode to the other leading-in wire 5. The tube 2 is closed at its ends by stoppers 6, 7 of refractory insulating material which have a central aperture for the passage of the wire 3. A clamp 8 supports the tube 2 on the supporting wire 4, and an oblique wire 9 secured to the latter forms a strut for supporting the lower stopper 6. An insulator may be interposed between the tube 2 and the heating filament. In a modification the anode forms a cage consisting of parallel wires or rods arranged parallel to the axis of the hot electrode, with their ends connected by annular conductors. Two rods only arranged in the same plane and equidistant from the hot electrode may, in some instances, produce the symmetrical field. In a further modification, the anode 14, Fig. 3, consists of an annular wire arranged within the neck of the bulb to encircle the mount 15.
GB5061/32A 1931-02-20 1932-02-19 Improvements in electric gaseous discharge lamps Expired GB398829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT398829X 1931-02-20

Publications (1)

Publication Number Publication Date
GB398829A true GB398829A (en) 1933-09-19

Family

ID=3673515

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5061/32A Expired GB398829A (en) 1931-02-20 1932-02-19 Improvements in electric gaseous discharge lamps

Country Status (4)

Country Link
US (1) US2108537A (en)
BE (1) BE386195A (en)
FR (1) FR732061A (en)
GB (1) GB398829A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491868A (en) * 1948-07-29 1949-12-20 Gen Electric Supporting structure for electric discharge lamps

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4987342A (en) * 1989-03-27 1991-01-22 Gte Products Corporation Self-ballasted glow discharge lamp having indirectly-heated cathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491868A (en) * 1948-07-29 1949-12-20 Gen Electric Supporting structure for electric discharge lamps

Also Published As

Publication number Publication date
FR732061A (en) 1932-09-13
BE386195A (en)
US2108537A (en) 1938-02-15

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