GB646716A - Improvements in tubular electric discharge lamps - Google Patents

Improvements in tubular electric discharge lamps

Info

Publication number
GB646716A
GB646716A GB22086/47A GB2208647A GB646716A GB 646716 A GB646716 A GB 646716A GB 22086/47 A GB22086/47 A GB 22086/47A GB 2208647 A GB2208647 A GB 2208647A GB 646716 A GB646716 A GB 646716A
Authority
GB
United Kingdom
Prior art keywords
translucent
envelope
cap
lead
light
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
GB22086/47A
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 GB646716A publication Critical patent/GB646716A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • H01J5/62—Connection of wires protruding from the vessel to connectors carried by the separate part

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

646,716. Lamp-caps. SYLVANIA ELECTRIC PRODUCTS, Inc. Jan. 14, 1948, No. 22086/47. Convention date, Aug. 21, 1945. [Class 38 (i)] A tubular discharge lamp has the translucent end of its envelope through which the lead-in wires project surrounded by a translucent base from which the contact pins project, preferably the parts of the lead-in wires outside the envelope being covered with light-reflecting material. The cap of a lamp 1 having opposed translucent ends 4 comprises a translucent plastic body 2 recessed at 8 for the ends 4 and provided with lead-in wires 10 covered with light-reflecting material. The interior 9 of the cap is etched to diffuse the light; alternatively (Fig. 3, not shown), the interior is ribbed or grooved. A projection 15 on one end 4 permits the envelope to move about the axis of the cap which is provided with shoulders to limit the rotation.
GB22086/47A 1945-08-21 1948-01-14 Improvements in tubular electric discharge lamps Expired GB646716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US611747A US2413662A (en) 1945-08-21 1945-08-21 Lamp base

Publications (1)

Publication Number Publication Date
GB646716A true GB646716A (en) 1950-11-29

Family

ID=24450265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22086/47A Expired GB646716A (en) 1945-08-21 1948-01-14 Improvements in tubular electric discharge lamps

Country Status (2)

Country Link
US (1) US2413662A (en)
GB (1) GB646716A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480301A (en) * 1946-02-01 1949-08-30 Clayton M Moretz Electric light fixture
DE1005187B (en) * 1952-10-14 1957-03-28 August Matthies Luminaire with a bulb socket for tubular fluorescent lamps
DE1014231B (en) * 1953-12-31 1957-08-22 Aeg Arrangement for fluorescent lamps
DE1027793B (en) * 1956-06-02 1958-04-10 Berliner Gluehlampen Werk Veb Socket for fluorescent lamps
NL215396A (en) * 1956-06-28
US3274420A (en) * 1961-09-27 1966-09-20 Tokyo Shibaura Electric Co Annular fluorescent lamps
DE29600594U1 (en) * 1996-01-15 1997-05-07 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Low-pressure discharge lamp with base and associated socket
US6960000B2 (en) * 2003-07-03 2005-11-01 Nuvolux, Inc. Dartboard illumination method and apparatus

Also Published As

Publication number Publication date
US2413662A (en) 1946-12-31

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