EP0074351A1 - Lampe fluorescente pourvue d'une pluralite d'enceintes et de connecteurs - Google Patents

Lampe fluorescente pourvue d'une pluralite d'enceintes et de connecteurs

Info

Publication number
EP0074351A1
EP0074351A1 EP19810901935 EP81901935A EP0074351A1 EP 0074351 A1 EP0074351 A1 EP 0074351A1 EP 19810901935 EP19810901935 EP 19810901935 EP 81901935 A EP81901935 A EP 81901935A EP 0074351 A1 EP0074351 A1 EP 0074351A1
Authority
EP
European Patent Office
Prior art keywords
end cap
connector
wall
electrode terminals
enclosures
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.)
Withdrawn
Application number
EP19810901935
Other languages
German (de)
English (en)
Inventor
Raul Guim
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 EP0074351A1 publication Critical patent/EP0074351A1/fr
Withdrawn legal-status Critical Current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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors

Definitions

  • This invention relates to an improvement for fluores ⁇ cent lamps capable of enlarging its useful life by incor ⁇ porating a plurality of hermetically sealed enclosures acting as independent lamps.
  • a small amount of mercury and an inert gas such as argon, krypton, or a mixture of argon and krypton, and when an electric current is passed between the electrodes, ultra-violet radiations, are produced which are transformed by the fluorescent material into visible light.
  • an inert gas such as argon, krypton, or a mixture of argon and krypton
  • OMPI gas-filled tubes of the fluorescent type gradually blacken in service even when the coating of the oxides upon the filaments is -still intact.
  • the blackening of the tubes is pronounced at the end portions of the tubes in proximity to the electrodes although more of less blackening of the tubes occurs throughout the entire length of the tubes.
  • This blackening is caused by a film comprising mercury which is deposited upon the interior surface of the tube during ser ⁇ vice in which the mercury may be entrained with or combined with other elements or compounds on the interior surface of the tube.
  • the invention also comprises such other objects, ad ⁇ vantages and capabilities as will later more fully appear and which are inherently possessed by the invention.
  • Figure I shows the dual fluorescent lamp subjeet of the present application, with the right end cap sep ⁇ arated from the tube.
  • Figure 2 is a partial cross-section of the tube in Figure I along line 2-2.
  • Figure 2A is an exploded partial cross-sectional view of the connector and cap.
  • Figure 3 is a partial view in perspective of the end of the lamp tube, with the end cap separated.
  • Figure 4 shows the interconnections inside the end cap as seen from line 4-4.
  • Figure 5 is similar to Figure 1 with the only difference being that the end cap connector has only one contact, as is the case with some commercially available lamps.
  • Figure 6 is a partial cross-section of the tube illustrated in Figure 5 along line 6-6.
  • Figure 7 is a partial view in perspective of the end of the lamp tube, with the end cap connector separated.
  • Figure 8 shows the interconnection inside the end cap connector as seen from line 8-8.
  • FIG. 2 a cross-section of one end of dual lamp 1 is shown illustrating the preferred embodiment for the present invention as it is incorporated in a standard two pin lamp.
  • the method of operation for fluorescent lamp is old.
  • a voltage is applied to the two contact pins 11 which are connected through conductors 15 to contacts 8.
  • Contacts 8 engage with electrode terminals 6 which in turn are con ⁇ nected through electrode wires 7 to filament 4.
  • the glass envelope 13, hermetically sealed, contains a rarified at ⁇ mosphere that is ionized when filament 4 is heated.
  • the filament 4 and electrode wires 7 are referred to, collectively as an electrode assembly 20.
  • the ions are electrostatically accelerated inside the glass envelope 13.
  • the inside wall of glass envelope 13 is covered with fluorescent material that is activated when the ions strike said inside wall.
  • the embodiment disclosed uses four electrode assemblies 20 and two independent'-glass envelopes which we refer to as lamp enclosure A 16 and lamp enclosure B 17. It is possible to have more than two independent lamp enclosures incorporated in the present invention with the consequent extension of the lamp's life.
  • the electrode terminals 6 are fixed to the outside part of end cap 3 which is similar to an end cap used in a common fluorescent lamp.
  • the end cap 3 is attached to the glass envelope 13 by epoxy 21 or other similar composition. The only difference between end cap 3 and other commercially available lamp caps being the number and arrangement of these electrode terminals 6 and contacts 8.
  • the end cap con ⁇ nector 2 provides means for connecting with these readily available sockets while making contact with one of the sets of electrode terminals 6, and consequently, one of the lamp enclosures 16 or 17 will be activated.
  • the end cap con ⁇ nector 3 has a guide 10 that receives key 9 on end cap 3, thereby insuring a good fast contact.
  • Lamp enclosure A 16 is separated from lamp enclosure B 17 by divider 14 which is shown to be made out of glass in the preferred embodiment but other suitable materials may be used. Longitudinal divider 14 may be formed in a similar fashion as glass grown base 5 is formed. The shape of divider 14 will depend upon the number of enclosures formed.
  • the divider's cross-section will have a Y- ⁇ shape
  • the present invention will be produced as a superimposition of two cylindrical tubes, forming an 8-shaped cross-section. But the idea is the same and the shape of the tube will respond to usual production line capabilities.
  • Each one of the enclosures, 16 and 17, will be an independent fluorescent lamp.
  • end cap connector 2 on each end of the dual lamp 1, whenever he decides to change from one lamp enclosure to the other one.
  • the enclosure to be activated will always end up situated so that it gives out the maximum amount of light, i.e. downwardly, if the area to be illuminated is below. This may also be accomplish if more than two enclosures 16 and 17, are used.
  • the glass envelope 13 rotates but the connector 2 position relative to the commercially available socket to which it is connected is fixed for the lamps having more than one pin 11. Lamps with only one pin 11 will obviously present no problem since they can be readily rotated.
  • Figure 4 shows the inner part of the end cap connector 2 where the end of conact pins 11 are riveted at 12 and con ⁇ nected through conductor 15 to contacts 8.
  • the outer wall 22- of connector 2 looks like any commercially available lamp and * it is capable of being inserted in any standard socket.
  • Guides 10 and keys 9 insure a proper connection, improve mechanical stability of the assembly and impede rotation of the end cap connector 2.
  • Figure 2 also shows a peripheral groove 19 formed be ⁇ tween end cap 3 and glass envelope 13. This peripheral groove 19 receives rim 18 formed on the inner wall 23 of end cap connector 2, thereby providing a quick-connect snap action connection. Groove 19 may also be formed on the peripheral side wall of end cap 3.
  • FIG. 5 Another commercially available type of fluorescent lamp using only one contact pin is illustrated in Figure 5 through 8, showing how the present invention can be incorpora ⁇ ted, in a similar fashion as with the standard two pin type.
  • Electrode terminals 6 are connected to electrode wires 7 and the circuit is com ⁇ pleted with filament 4.
  • Connector 2 receives end cap 3 connecting terminals 6 with contacts 8.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

Lampe fluorescente (1) possedant un organe de separation longitudinal (14) formant au moins deux enceintes (16) et (17) a l'interieur de son enveloppe cylindrique en verre (13). Chaque enceinte possede un ensemble d'electrodes (20) a chaque extremite d'une maniere analogue a celle des lampes fluorescentes ordinaires. Le couvercle d'extremite (3) est pourvu des terminaux d'electrodes correspondants (6) pour chaque enceinte. Un connecteur de couvercle d'extremite (2) est fixe de maniere demontable au couvercle d'extremite (3), permettant les contacts correspondants (8) pour les terminaux d'electrodes (6) a l'interieur de chaque connecteur (2) et l'exterieur peut s'adapter aux douilles des lampes fluorescentes ordinaires.
EP19810901935 1981-03-17 1981-03-17 Lampe fluorescente pourvue d'une pluralite d'enceintes et de connecteurs Withdrawn EP0074351A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1981/000365 WO1982003293A1 (fr) 1981-03-17 1981-03-17 Lampe fluorescente pourvue d'une pluralite d'enceintes et de connecteurs

Publications (1)

Publication Number Publication Date
EP0074351A1 true EP0074351A1 (fr) 1983-03-23

Family

ID=22161150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810901935 Withdrawn EP0074351A1 (fr) 1981-03-17 1981-03-17 Lampe fluorescente pourvue d'une pluralite d'enceintes et de connecteurs

Country Status (3)

Country Link
EP (1) EP0074351A1 (fr)
AU (1) AU7411781A (fr)
WO (1) WO1982003293A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3638507A1 (de) * 1986-11-11 1988-05-19 Ceag Licht & Strom Explosions- bzw. schlagwettergeschuetzte leuchtstofflampe
DE3638508A1 (de) * 1986-11-11 1988-05-19 Ceag Licht & Strom Explosions- bzw. schlagwettergeschuetzte leuchtstofflampe
USD803785S1 (en) 2016-02-19 2017-11-28 Dinesh Wadhwani Electric lamp socket

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1974888A (en) * 1930-10-27 1934-09-25 Fed Electric Co Illuminating device
US2659835A (en) * 1951-01-20 1953-11-17 Hanovia Chemical & Mfg Co Electric discharge device
US2993191A (en) * 1956-03-28 1961-07-18 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Base for electric discharge lamp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8203293A1 *

Also Published As

Publication number Publication date
AU7411781A (en) 1982-10-06
WO1982003293A1 (fr) 1982-09-30

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Effective date: 19830516