GB806520A - Electric induction lamp - Google Patents

Electric induction lamp

Info

Publication number
GB806520A
GB806520A GB38773/56A GB3877356A GB806520A GB 806520 A GB806520 A GB 806520A GB 38773/56 A GB38773/56 A GB 38773/56A GB 3877356 A GB3877356 A GB 3877356A GB 806520 A GB806520 A GB 806520A
Authority
GB
United Kingdom
Prior art keywords
target
disc
slot
refractory
electric induction
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
GB38773/56A
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Publication of GB806520A publication Critical patent/GB806520A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K11/00—Lamps having an incandescent body which is not conductively heated, e.g. heated inductively, heated by electronic discharge

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)

Abstract

806,520. Electric induction lamps. SYLVANIA ELECTRIC PRODUCTS Inc. Dec. 19, 1956 [Feb. 16, 19561, No. 38773/56. Class 39(2). In order to obtain uniformity of light distribution from an electric induction lamp comprising a target 6 of refractory material disposed in an aperture in a magnetic field concentrator 1 provided with a slot 3 for the purpose of preventing circulation of current in a complete path around the target, the spacing between. the target and the edge of the aperture is made less in the region of the radial slot than at the opposite closed portion of the circumference. Figs. 1 and 2 show a circular refractory disc 1 provided with a radial slot 3 and an oval central opening 4 formed with an extension 5 diametrically opposite the slot. The target 6, which consists of a cylinder of refractory material such as tantalum carbide, extends forwardly of the plane of the disc 1. Other refractory materials such as niobium carbide or hafnium carbide may be used Interconnected tubes 9 for the circulation of cooling water are attached to a cylindrical portion 10 extending downwardly from the disc 1. A stem 11 of the same material as the target 6 supports the latter in a zirconium tube 12, as described in Specification 806,518. Fig. 4 shows a modification wherein a target 6 in the form of a circular cylinder is set eccentrically in a circular opening 4 in a concentrator disc.
GB38773/56A 1956-02-16 1956-12-19 Electric induction lamp Expired GB806520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US565842A US2803774A (en) 1956-02-16 1956-02-16 Induction lamp

Publications (1)

Publication Number Publication Date
GB806520A true GB806520A (en) 1958-12-23

Family

ID=24260332

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38773/56A Expired GB806520A (en) 1956-02-16 1956-12-19 Electric induction lamp

Country Status (2)

Country Link
US (1) US2803774A (en)
GB (1) GB806520A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239745A (en) * 1960-08-25 1966-03-08 Rca Corp Low temperature thermionic energy converter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2171359A (en) * 1936-08-03 1939-08-29 Harry I Stein Glow lamp

Also Published As

Publication number Publication date
US2803774A (en) 1957-08-20

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