US3253176A - Panel lamp with terminal bases - Google Patents

Panel lamp with terminal bases Download PDF

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Publication number
US3253176A
US3253176A US106827A US10682761A US3253176A US 3253176 A US3253176 A US 3253176A US 106827 A US106827 A US 106827A US 10682761 A US10682761 A US 10682761A US 3253176 A US3253176 A US 3253176A
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US
United States
Prior art keywords
ledge
front face
lamp
backplate
base
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 - Lifetime
Application number
US106827A
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English (en)
Inventor
Albert F Pate
Robert A Kuebler
Harold R Kestner
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority to NL277851D priority Critical patent/NL277851A/xx
Priority claimed from US106822A external-priority patent/US3247415A/en
Priority claimed from US106829A external-priority patent/US3240861A/en
Priority to US106827A priority patent/US3253176A/en
Application filed by General Electric Co filed Critical General Electric Co
Priority claimed from US106828A external-priority patent/US3237042A/en
Priority to GB16163/62A priority patent/GB1013127A/en
Priority to FR895953A priority patent/FR1326658A/fr
Priority to GB16165/62A priority patent/GB1012333A/en
Priority to ES276895A priority patent/ES276895A1/es
Priority to CH514762A priority patent/CH403979A/de
Priority to DEG34878A priority patent/DE1223056B/de
Priority to US331042A priority patent/US3252781A/en
Publication of US3253176A publication Critical patent/US3253176A/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/10—Shields, screens, or guides for influencing the discharge
    • H01J61/103—Shields, screens or guides arranged to extend the discharge path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings
    • H01J9/221—Applying luminescent coatings in continuous layers
    • H01J9/223—Applying luminescent coatings in continuous layers by uniformly dispersing of liquid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/26—Sealing together parts of vessels
    • H01J9/261—Sealing together parts of vessels the vessel being for a flat panel display
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/37—U-shaped

Definitions

  • This invention relates to fluorescent panel lamps and more particularly to bases or terminal structures therefor.
  • the discharge path is a labyrinthine channel formed between two vitreous components sealed together along their margins.
  • Such lamps provide a relatively long discharge in a small area which is an advantage from the point of view of compactness of source and ease of handling. They offer what may be described as an area light source as against a line source as is the case with the usual elongated fluorescent lamp.
  • panel lamps be made in modular sizes corresponding to the dimensions of standard ceiling tiles.
  • panel lamps be used in shallow fixtures.
  • the lower plate which may be referred to as the faceplate of the lamp, is exposed to view and it is desired that no connectors or connecting wires mar its appearance.
  • the base or terminal structure and the cooperating connector must fit within the modular dimensions and not project beyond them. This also permits the closest possible edge-to-edge mounting of the lamps.
  • the object of the invention is to provide a base terminal structure and assembly with a fluorescent panel lamp having to an acceptable degree the above-outlined desirable attributes.
  • the lamp is formed by sealing two molded glass plates, the faceplate and the backplate, together along their margins. In the square or rectangular panel lamp, the sealed margins provide a flat marginal ledge running along the four sides of the lamp.
  • the general terminal structure and connector scheme followed is in accordance with that described and claimed in copending application Serial No. 108,704, now Patent No. 3,198,943, of John M. Pistey, filed of even date herewith, entitled Connector, and as signed to the same assignee as the present invention. That scheme involves placing terminal structures at two corners of the lamp in facing relationship and utilizing a spring loaded bar-type connector to engage them.
  • each terminal structure consists of two main parts. One part consists of an insert which carries the terminals proper which are electrically connected to the electrodes of the lamp. The other part consists of a housing which accommodates and supports the insert and which is fastened to the vitreous lamp structure proper.
  • the insert is provided with a pair of terminal pins and is accommodated in the housing by sliding it into a suitable blind well therein, an aperture in the housing giving access to the pins for the connector.
  • housing may be attached to the lamp structure by means of clips which inter-engage the marginal ledge and projecting feet forming part of the housing, or else by suitable cements.
  • the terminals or pins are engageable by longitudinal displacement of cooperating connector terminals along the marginal ledge.
  • FIG. 2 is a side or end view of the lamp with reference to FIG. 1.
  • FIG. 3 is a fragmentary plan view of the lamp showing the base structures with the bar type connector latched in place.
  • FIG. 4 is a side view partly sectioned through one base structure and the connector, taken along line 4-4 of FIG. 3.
  • FIG. 5 is a front end view, partly sectioned, of one of the base structures taken along line 55 of FIG. 3.
  • FIGS. 6 and 7 are perspective views of clips which may be used for attaching the bases to the lamp.
  • FIGS. 8 and 9 are plan and side elevation views of a modified base structure.
  • the illustrated six-channel lamp 1 is in the form of a generally flat square panel made up of a pair of complementary molded glass components or plates 2, 3.
  • the lower component 2. forms the underside or faceplate of the lamp which is exposed to view when the lamp is mounted in its fixture or incorporated into a ceiling.
  • the upper component 3 which may be referred to as the backplate is molded or blown to define, in cooperation with the faceplate, a winding or labyrinthine discharge channel or passage by means of six parallel grooved sections or channelways 4 extending side by side and joined together at alternate ends, as at 5 where the lengthwise partitions 6 end, thereby forming a continuous grid-like channel.
  • Both plates may be formed from fiat sheets of glass by any suit able means, for instance by vacuum molding.
  • the faceplate 2 is provided with a plurality of shallow embossments 7, which may be of square outline in plan view, giving it somewhat the appearance of a quilt or checkerboard. The quilting of the faceplate improves the appearance and increases the strength of the assembly.
  • the edges of the faceplate and backplate are hermetically sealed together along the outer periphery 9 which thus forms a marginal ledge running around the four sides of the lamp.
  • the sealing of the plates may be done either directly by fusion 'of the glass or through the use of a lower melting point soldering glass.
  • the vitreous components may be sealed together if desired but it is not essential that this be done.
  • the electric discharge or arc will not leak through and short circuit at the partitions but will follow the labyrinthine channel from end to end.
  • the lamp is provided with discharge supporting electrodes at opposite ends of the channel.
  • One electrode is seen in FIG. 1 where the backplate is cut away and comprises a coiled coil filament 10 of tungsten wire coated with alkaline earth electron-emitting oxides.
  • the filament is supported across inleads 11, 12 which are sealed through the glass of the marginal ledge 9 where the faceplate and backplate are fused together.
  • the glass bead bridge 13 is a spacer and stiifener to prevent strain on the filament, particularly prior to sealing into the vitreous lamp assembly.
  • the upper glass component or backplate is notched inwardly from the outer edge at 14 and 15 in order to permit the outwardly projecting ends of the inleads to be turned up for connection to the base terminals.
  • the electrodes are preferably of the low thermal capacity rapid start type which are preheated at starting by passing current therethrough, but other types of electrodes with other inlead sealing techniques may of course be used.
  • the lamp contains an ionizable atmosphere including a starting gas or mixture of one or more of the inert rare gases of Group of the Periodic Table at a low pressure, for instance argon at a pressure of 0.5 to 5, preferably 2 to 3, millimeters of mercury, along with mercury vapor.
  • the quantity of mercury added exceeds that vaporized during normal operation of the lamp wherein it exerts a partial pressure in the range of 2 to 10 microns, more commonly to 8 microns for optimum generation of 2537 A.
  • This radiation energizes a phosphor coating applied to the inside surfaces of the backplate and faceplate, the phosphor in turn producing visible light.
  • the phosphor may be applied more sparingly on the faceplate, or alternatively a reflecting coating may be applied to the backplate, to cause the lamp to emit a greater proportion of its light downwardly through the faceplate than through the backplate.
  • the two base terminal structures proper are indicated at 17 and are arranged to seat near opposite ends of the marginal ledge 9 on the electrode side of the lamp and to overlie the notches 14, 15 at the points of emergence of the inleads.
  • the base structure consists of two principal parts, the insert 18 and the external housing 19. Both parts are made of an insulating material, preferably a thermoplastic material which is readily molded such as white urea compound.
  • the insert 18 is in the form of an upstanding block with a forwardly projecting foot 20. It is provided with a pair of spaced contacts in the form of horizontally directed tubular contact pins 21, 22.
  • the pins have rounded front ends, intermediate shouldered ridges at 23 for locking against the front face of the insert, and upset rear ends which are embedded in the plastic at molding.
  • the pins are accurately located vertically above the slightly inclined upper face of the foot which provides a seating surface for the terminal block of the connector to be described hereinbelow.
  • the lead wires are initially connected to the contact pins of the insert as illustrated at 11, 12 on the left hand side of FIGS. 1 and 2.
  • the connection of the lead wires to the pins may be done by soldering or welding, or in any other convenient manner.
  • An angled slot at 24 in the rear side of the base of the insert facilitates-bringing lead 11 up from notch 14.
  • the external housing 19 is in the form of an elongated block with a flat front end or face at 25 with an aperture therethrough to give access to the contact pins of the insert, and a curved or streamlined rear end wall at 26 which, for neatness of appearance, conforms generally to the curvature of the outer grooves or channelways in the backplate of the lamp.
  • the side walls are generally straight and are extended forwardly as projecting wings or guards 27 on each side of the front face.
  • a generally rectangular cavity or blind well 28 (best seen in FIG. 8) extending vertically upwards from the bottom wall is provided within the body of the housing to the rear of the front face for accommodating the insert.
  • the well is open at the bottom but closed at the top.
  • a narrower blind slot 29 extends through the housing behind the well 28 and up from the bottom wall and provides a passageway for the upper inlead 12.
  • the procedure for assembling the base components involves first connecting the lead wires to the contact pins of the insert 18.
  • the external housing 19 is then pressed down over the insert so that the insert enters the blind well 28.
  • the housing is provided with projecting feet 30, 31 at opposite longitudinal ends, each foot having a flat depressed portion or notch 32 and a deeper furrow 33 at the inner end, as best seen in FIG. 8.
  • the feet are engaged by generally C-shaped springy metal clips 34, shown in FIG. 6.
  • the clip comprises upper and lower horizontal arms 35, 36 provided with inwardly turned lips 37. The upper arm and its lip engage the notch and furrow in the foot of the base.
  • the lower arm and its lip engage in a similar notch and furrow molded in the glass in the underside of the marginal ledge 9 of the lamp, as indicated at 38, 39 in FIG. 1.
  • the marginal ledge is also preferably laterally notched as indicated at 40 to assure flush edge seating of the clips.
  • the front clip is attached laterally and the rear clip is attached longitudinally.
  • each housing may be provided with a lateral tang 41 which is entered into the slot or cavity between the outermost channelway 4 in the backplate of the lamp and that next to it.
  • the tang is desirably hollow, that is slotted internally as indicated at 42 in order to achieve a more resilient engagement with the glass walls of the grooves.
  • the base structure to the lamp by utilizing a suitable adhesive compatible with both the relatively high expansion coeflicient of the plastic of the base structure and the relatively low expansion coeflicient of the glass of the lamp structure.
  • a suitable adhesive compatible with both the relatively high expansion coeflicient of the plastic of the base structure and the relatively low expansion coeflicient of the glass of the lamp structure.
  • the projecting feet 30, 31 of the external housing 19 may be dispensed with but in this case the lateral tang 41 is desirable.
  • the tang itself is also cemented to the glass of the lamp in the valley between the channelways.
  • both base terminal structures When both base terminal structures are mounted on the lamp, they provide a pair of aligned and mutually facing terminal pins at opposite ends of the marginal ledge. These pins may then be engaged by means of a telescopic bar type connector 43 which is positioned to overlie the marginal ledge 9 as indicated in FIGS. 3 and 4.
  • the connector comprises a rectangular metal housing 44 provided with similar terminal blocks at opposite ends, one block 45 being fixed to the housing and the other block 46 being slidable relative to the housing and biased outwardly by means of a spring 47.
  • the blocks 45, 46 are preferably made of a readily molded thermoplastic material such as white urea compound. They are provided with apertures in which are inserted terminal strips 48, 49 for engaging the contact pins 21, 22 of the bases.
  • the terminal strips are connected to conductors or wires indicated at 50 by means of which circuit connections are made to the ballast for energizing the lamp.
  • the bar connector may be latched in place with one hand while the lamp is held in the other.
  • the specific structure of the bar type connector 43 is more fully described and is claimed in the aforementioned copending application of John M. Pistey. However, it is also possible to use two separate connectors to engage the two spaced base structures.
  • a conductive member sometimes known as a starting aid, disposed in capacitive relationship to the discharge channel of the lamp.
  • Such members may take various forms,
  • the starting aid is conveniently provided in the form of conductive strips 51 which are applied to the outside of the backplate over the partitions 6, that is in the valleys between the channeliways 4. As illustrated, the conductive strips are applied in three of the valleys, the two outervalleys and the middle valley. All the strip sections are joined together by another strip 52 which overlies the marginal ledge 9 (FIG. 1).
  • the strips may be made of any suitable conductive material which may be adhered to the glass, for instance a silver paint or a graphite suspension or if preferred a vapor-deposited metal layer.
  • Another material which may be used' is a self-adhesive tape provided with a conductive metal backing.
  • At least one of the terminal blocks of the connector, block 45 in this case, is provided with a springy bottom contact 53.
  • the bottom contact may engage directly the conductive strip 5-2 overlying the marginal ledge.
  • a metal terminal band 54 which is disposed to overlie the ledge strip 46 and which in turn is engaged by the bottom contact 47 of the connector.
  • the terminal band 54 is provided with a hooked end which is accommodated in a recess in the bottom face of the base terminal housing; it is thereby locked in place and pressed resiliently against conductive strip 52 overlying the ledge.
  • FIG. 7 shows in perspective view an alternative form of clip 56 which resolves this problem.
  • the lowermost arm 57 is straight and is not provided with a lip.
  • the uppermost arm 58 is provided with a downwardly turned lip 59 which engages the furrow in the foot of the plastic base housing in the same fashion as previously described.
  • the clip is provided with an intermediate arm 60 which is offset to one side of the uppermost arm but nevertheless overlies a part of the lowermost arm.
  • the spacing be tween the intermediate and the lowermost arms is such as to engage the glass ledge 9, and the intermediate arm is provided with a downwardly turned lip 61 which locks in a furrow now formed in the topside of the glass ledge.
  • the base structure 17a shown in FIGS. 8 and 9 has been modified to this end.
  • the external housing is provided with a forwardly projecting brow or top wall portion at 62.
  • the aperture giving access to the contact pins is now completely surrounded.
  • the terminal block (suitably reproportioned) of the bar connector enters the aperture, it is now engaged by wall surfaces of the base structure on all four sides and the desired support is achieved without endangering the contact pins.
  • the base structure shown in FIGS. 8 and 9 is intended for an all-clip fastening and the lateral tang has been eliminated.
  • a panel lamp comprising a generally flat vitreous envelope having a vitreous marginal ledge extending along a side, and a pair of base terminal structures spaced longitudinally apart, seated on and attached to said ledge, said base structures having terminals engageable by longitudinal displacement of cooperating connector terinals along said ledge.
  • a panel lamp comprising a generally flat rectangular vitreous envelope having a vitreous marginal ledge extending therearound, and a pair of base terminal structures seated on and attached to said ledge on one side of said envelope, said base structures being disposed in mutually facing relationship near opposite ends of said ledge and having terminals engageable by longitudinal displacement of cooperating connector terminals along said ledge.
  • a panel lamp comprising a generally fiat vitreous envelope having a vitreous marginal ledge extending along a side, and a pair of base terminal structures spaced longitudinally apart, seated on and attached to said ledge, said base structures having terminals in the form of longitudinally extending, aligned and mutually facing contact pins.
  • a panel lamp comprising a generally fiat vitreous envelope having a vitreous marginal ledge extending along a side, and a pair of base terminal structures spaced longitudinally apart, seated on and attached to said ledge, said base structures being disposed in mutually facing relationship on said ledge and having terminals in the form of longitudinally extending, aligned and mutually facing contact pins.
  • An electric discharge panel lamp comprising a vitreous envelope formed of a backplate and a faceplate sealed together along their margins and together defining a labyrinthine discharge channel, said sealed margins providing a vitreous ledge along at least one side of said lamp, and a pair of base terminal structures seated on and attached to said marginal ledge near opposite ends thereof, each base structure comprising an elongated block of insulating material having a terminal projecting from its front face, said base structures being disposed with their front faces facing each other across said ledge.
  • An electric discharge panel lamp comprising a vitreous envelope formed of a backplate and a faceplate sealed together along their margins and together defining a labyrinthine discharge channel, said sealed margins providing a vitreous ledge along at least one side of said lamp, electrodes sealed into the ends of said discharge channel next to said marginal ledge, and a pair of base terminal structures seated on and attached to said marginal ledge at opposite ends thereof, each base structure comprising an elongated block of insulating material having a pair of contact pins projecting from its front face and connected to one of said electrodes, said base structures being disposed with their front faces facing each other across said ledge and with their contact pins in alignment.
  • An electric discharge panel lamp comprising a generally flat vitreous envelope formed of a backplate and a faceplate sealed together along their margins and together defining a labyrinthine discharge channel, said sealed margins providing a vitreous ledge along at least one side of said lamp, electrodes sealed into the ends of said discharge channel next to said marginal ledge, and base terminal structures seated on and attached to said marginal ledge at opposite ends thereof, each base structure comprising an insert provided with terminals connected to the adjacent electrode .and a housing provided with a well accommodating said insert and having an opening giving access to said terminals.
  • a fluorescent panel lamp comprising a generally fiat rectangular vitreous envelope formed of a backplate and a faceplate sealed together along their margins, said backplate having a plurality of parallel interconnected grooved channelways formed therein to define a labyrinthine discharge channel, said sealed margins providing a vitreous ledge extending around said envelope, electrodes supported in the ends of said discharge channel, and a pair of base terminal structures seated on and attached to said marginal ledge near opposite ends thereof on one side of said envelope, each base structure being in the form of an elongated block of insulating material having a generally fiat front face with an aperture therethrough, generally straight side walls extending forwardly into projecting wings on each side of the front face, a'top wall extending back from the front face and curving smoothly down to the rear to form the rear end wall with a curvature approximately matching that of the outermost grooved channelways in said backplate, and a pair of spaced contact pins projecting forwardly of said front face between said wings.
  • a fluorescent panel lamp as defined in claim 8 and having conductive starting strips applied to the backplate between some of said channelways, a conductive connecting strip on said ledge joined to said starting strips, and a terminal band overlying said connecting strip and secured in place by one of said base structures.
  • a fluorescent panel lamp comprising a generally flat rectangular vitreous envelope formed of a backplate and a faceplace sealed together along their margins, said backplate having a plurality of parallel interconnected grooved channelways formed therein to define a labyrinthine discharge channel, said sealed margins providing a vitreous ledge extending around said envelope, electrodes supported in the ends of said discharge channel by inleads sealed through said ledge on one side of said envelope and emerging upwardly through notches in the upper portion of said ledge, and base terminal structures seated on and attached to said marginal ledge near opposite ends thereof to overlie said notches, each base structure being in the form of an elongated block of insulating material having a generally flat front face with an aperture therethrough, generally straight side walls extending forwardly into projecting wings on each side of the front face, a top wall extending back from the front face and curving smoothly down to the rear to form the rear end wall with a curvature approximately matching that of the outermost grooved channelways in said backplate, and a pair
  • a base structure for an electric lamp comprising an elongated housing of insulating material having a flat front face with an aperture therethrough and side walls extending forwardly into projecting wings on each side of the front face, said housing having a blind well therein to the rear of said front face and extending upwards from the bottom wall, and an insert of insulating material accommodated in said well, said insert having terminals projecting through said aperture in the front face.
  • a base structure for an electric lamp comprising an elongated housing of insulating material having a flat front face with an aperture thcrethrough and side Walls extending forwardly into projecting wings on each side of the front face, said housing having a blind well therein to the rear of said front face and extending upwards from the bottom wall, and an insert of insulating material accommodated in said well, said insert having a pair of spaced contact pins fastened thereinto and projecting forwardly of said front face through said aperture and between'said wings.
  • a base structure for an electric lamp comprising an elongated housing of insulating material having a generally flat front face with an aperture therethrough, generally straight side walls extending forwardly into projecting wings on each side of the front face, and a top wall extending back from the front face and curving smoothly down to the rear to form the rear end wall, said housing having a blind well therein to the rear of said front face and extending upwards from the bottom wall and a blind slot to the rear of said well for the accommodation of conductors, an insert in the form of an upstanding block of insulating material accommodated in said Well, and a pair of spaced contact pins fastened into said insert and disposed to project forwardly of said front face through said aperture and between said wings,
  • a base structure as defined in claim 15 having longitudinally projecting feet at opposite ends of said housing provided with furrowed notches for engagement by a clip with an inwardly turned lip.
  • a base structure as defined in claim 15 having a tang projecting laterally from one side wall of said housing.
  • a base structure for an electric lamp comprising an elongated housing of insulating material having a generally flat front face with an aperture therethrough, generally straight side walls extending forwardly into projecting wings on each side of the front face, and a top wall extending back from the front face and curving smoothly down to the rear to form the rear end wall, said housing having a blind well therein to the rear of said front face and extending upwards from the bottom wall and a blind slot to the rear of said well for the accommodation of conductors, an insert in the form of an upstanding block of insulating material accommodated in said well, a pair of spaced contact pins fastened into said insert and disposed to project forwardly of said front face through said aperture and between said wings, and a forwardly project ing foot portion on said insert providing a seating surface for a connector at a predetermined spacing below said contact pins.
  • a base structure for an electric lamp comprising an elongated housing of insulating material having a generally fiat front face with an aperture therethrough, generally straight side walls extending forwardly into projecting wings on each side of the front face, and a top wall projecting forwardly of the front face even with said wings and extending back from the front face and curving smoothly down to the rear to form the rear end wall, said housing having a blind well therein to the rear of said front face and extending upwards from the bottom wall and a blind slot to the rear of said Well for the accommodation of conductors, an insert in the form of an upstanding block of insulating material accommodated in said well, and a pair of spaced contact pins fastened into said insert and disposed to project forwardly of said front face through said aperture between said wings and below the forward projecting portion of the top wall.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
US106827A 1961-05-01 1961-05-01 Panel lamp with terminal bases Expired - Lifetime US3253176A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL277851D NL277851A (de) 1961-05-01
US106827A US3253176A (en) 1961-05-01 1961-05-01 Panel lamp with terminal bases
GB16163/62A GB1013127A (en) 1961-05-01 1962-04-27 A sealed evacuated glass envelope and its manufacture
GB16165/62A GB1012333A (en) 1961-05-01 1962-04-27 Improvements in or relating to fluorescent discharge lamps
FR895953A FR1326658A (fr) 1961-05-01 1962-04-27 Lampe panneau et sa fabrication
ES276895A ES276895A1 (es) 1961-05-01 1962-04-30 Mejoras introducidas en la fabricación de lámparas de panel fluorescentes
CH514762A CH403979A (de) 1961-05-01 1962-04-30 Dicht verschlossene, evakuierte Einrichtung, insbesondere elektrische Flächenlampe, und Verfahren zu deren Herstellung
DEG34878A DE1223056B (de) 1961-05-01 1962-05-02 Flache, grossflaechige Leuchtstofflampe
US331042A US3252781A (en) 1961-05-01 1963-12-16 Apparatus for panel lamp manufacture

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US106827A US3253176A (en) 1961-05-01 1961-05-01 Panel lamp with terminal bases
US106822A US3247415A (en) 1961-05-01 1961-05-01 Fluorescent panel lamp coating
US106828A US3237042A (en) 1961-05-01 1961-05-01 Panel lamp inlead structure having a notched edge for lead-in conductors
US106829A US3240861A (en) 1961-05-01 1961-05-01 Panel lamp seal

Publications (1)

Publication Number Publication Date
US3253176A true US3253176A (en) 1966-05-24

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Application Number Title Priority Date Filing Date
US106827A Expired - Lifetime US3253176A (en) 1961-05-01 1961-05-01 Panel lamp with terminal bases

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US (1) US3253176A (de)
CH (1) CH403979A (de)
DE (1) DE1223056B (de)
ES (1) ES276895A1 (de)
GB (2) GB1012333A (de)
NL (1) NL277851A (de)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835444A (en) * 1986-02-10 1989-05-30 Photo Redux Corp. Radiation-emitting devices
US4853581A (en) * 1986-02-10 1989-08-01 Photo Redux Corp. Radiation-emitting devices
US4879489A (en) * 1986-02-10 1989-11-07 Photo Redux Corp. Radiation-emitting devices
US5276378A (en) * 1992-01-10 1994-01-04 Neonix, Inc. Fluorescent light emitting device
US5343116A (en) * 1992-12-14 1994-08-30 Winsor Mark D Planar fluorescent lamp having a serpentine chamber and sidewall electrodes
US5479069A (en) * 1994-02-18 1995-12-26 Winsor Corporation Planar fluorescent lamp with metal body and serpentine channel
US5536999A (en) * 1994-12-02 1996-07-16 Winsor Corporation Planar fluorescent lamp with extended discharge channel
US5608288A (en) * 1995-04-10 1997-03-04 General Motos Corporation Planar cold cathode lamp with reflecting surfaces
US5903096A (en) * 1997-09-30 1999-05-11 Winsor Corporation Photoluminescent lamp with angled pins on internal channel walls
US5914560A (en) * 1997-09-30 1999-06-22 Winsor Corporation Wide illumination range photoluminescent lamp
US6075320A (en) * 1998-02-02 2000-06-13 Winsor Corporation Wide illumination range fluorescent lamp
US6091192A (en) * 1998-02-02 2000-07-18 Winsor Corporation Stress-relieved electroluminescent panel
US6100635A (en) * 1998-02-02 2000-08-08 Winsor Corporation Small, high efficiency planar fluorescent lamp
US6114809A (en) * 1998-02-02 2000-09-05 Winsor Corporation Planar fluorescent lamp with starter and heater circuit
US6127780A (en) * 1998-02-02 2000-10-03 Winsor Corporation Wide illumination range photoluminescent lamp
US6294867B1 (en) * 1999-01-25 2001-09-25 Judd Lynn Flourescent lamp with uniform output
US6559599B1 (en) * 1998-11-17 2003-05-06 Corning Incorporated Internally channeled glass envelope with molded edge for affixing attachments
US6762556B2 (en) 2001-02-27 2004-07-13 Winsor Corporation Open chamber photoluminescent lamp
US20050275351A1 (en) * 2004-02-10 2005-12-15 Shichao Ge Gas discharge fluorescent device with lamp support
US20060273731A1 (en) * 2005-06-06 2006-12-07 Tbt Asset Management International Limited High Power Cold Cathode Tubular Fluorescent Lamp
US20070041182A1 (en) * 2005-07-20 2007-02-22 Shichao Ge Fluorescent Lamp for Lighting Applications
US20090115342A1 (en) * 2007-11-02 2009-05-07 Victor Lam Lighting System for Illumination Using Cold Cathode Fluorescent Lamps
US8492991B2 (en) 2007-11-02 2013-07-23 Tbt Asset Management International Limited Lighting fixture system for illumination using cold cathode fluorescent lamps
USD945678S1 (en) * 2019-05-06 2022-03-08 Zumtobel Lighting Gmbh Luminaire

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JPS5028753B1 (de) * 1968-11-30 1975-09-18
US5497048A (en) * 1994-09-12 1996-03-05 Burd; David M. Multiple triangularly shaped concentric annular fluorescent tubes for reflective lamps
GB2312314A (en) * 1996-04-16 1997-10-22 Smiths Industries Plc Light emitting assemblies
GB9607862D0 (en) * 1996-04-16 1996-06-19 Smiths Industries Plc Light-emitting assemblies

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US2292060A (en) * 1941-06-20 1942-08-04 Gen Electric Operating mechanism for fluorescent lamps
US2491237A (en) * 1947-05-17 1949-12-13 Westinghouse Electric Corp Manufacture of miniature lamps
US2488677A (en) * 1948-08-23 1949-11-22 Clyde D Mccann Fluorescent lamp socket
GB746669A (en) * 1953-03-13 1956-03-21 Gen Electric Co Ltd Improvements in or relating to electroluminescent devices
US2774004A (en) * 1953-04-08 1956-12-11 Gen Electric Flexible electroluminescent laminated panel
US2705310A (en) * 1954-04-19 1955-03-29 Gen Electric Metal sleeve base terminal
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Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835444A (en) * 1986-02-10 1989-05-30 Photo Redux Corp. Radiation-emitting devices
US4853581A (en) * 1986-02-10 1989-08-01 Photo Redux Corp. Radiation-emitting devices
US4879489A (en) * 1986-02-10 1989-11-07 Photo Redux Corp. Radiation-emitting devices
US5276378A (en) * 1992-01-10 1994-01-04 Neonix, Inc. Fluorescent light emitting device
US5343116A (en) * 1992-12-14 1994-08-30 Winsor Mark D Planar fluorescent lamp having a serpentine chamber and sidewall electrodes
US5463274A (en) * 1992-12-14 1995-10-31 Winsor Corporation Planar fluorescent lamp having a serpentine chamber and sidewall electrodes
US5479069A (en) * 1994-02-18 1995-12-26 Winsor Corporation Planar fluorescent lamp with metal body and serpentine channel
US5509841A (en) * 1994-02-18 1996-04-23 Winsor Corporation Stamped metal flourescent lamp and method for making
US5850122A (en) * 1994-02-18 1998-12-15 Winsor Corporation Fluorescent lamp with external electrode housing and method for making
US5536999A (en) * 1994-12-02 1996-07-16 Winsor Corporation Planar fluorescent lamp with extended discharge channel
US5818164A (en) * 1994-12-02 1998-10-06 Winsor Corporation Fluorescent lamp with electrode housing
US5608288A (en) * 1995-04-10 1997-03-04 General Motos Corporation Planar cold cathode lamp with reflecting surfaces
US5903096A (en) * 1997-09-30 1999-05-11 Winsor Corporation Photoluminescent lamp with angled pins on internal channel walls
US5914560A (en) * 1997-09-30 1999-06-22 Winsor Corporation Wide illumination range photoluminescent lamp
US6100635A (en) * 1998-02-02 2000-08-08 Winsor Corporation Small, high efficiency planar fluorescent lamp
US6091192A (en) * 1998-02-02 2000-07-18 Winsor Corporation Stress-relieved electroluminescent panel
US6075320A (en) * 1998-02-02 2000-06-13 Winsor Corporation Wide illumination range fluorescent lamp
US6114809A (en) * 1998-02-02 2000-09-05 Winsor Corporation Planar fluorescent lamp with starter and heater circuit
US6127780A (en) * 1998-02-02 2000-10-03 Winsor Corporation Wide illumination range photoluminescent lamp
US6559599B1 (en) * 1998-11-17 2003-05-06 Corning Incorporated Internally channeled glass envelope with molded edge for affixing attachments
US6294867B1 (en) * 1999-01-25 2001-09-25 Judd Lynn Flourescent lamp with uniform output
US6762556B2 (en) 2001-02-27 2004-07-13 Winsor Corporation Open chamber photoluminescent lamp
US20050275351A1 (en) * 2004-02-10 2005-12-15 Shichao Ge Gas discharge fluorescent device with lamp support
US20060273731A1 (en) * 2005-06-06 2006-12-07 Tbt Asset Management International Limited High Power Cold Cathode Tubular Fluorescent Lamp
US20070041182A1 (en) * 2005-07-20 2007-02-22 Shichao Ge Fluorescent Lamp for Lighting Applications
US7862201B2 (en) * 2005-07-20 2011-01-04 Tbt Asset Management International Limited Fluorescent lamp for lighting applications
US20110156609A1 (en) * 2005-07-20 2011-06-30 Tbt Asset Management International Limited Fluorescent lamp for lighting applications
US20090115342A1 (en) * 2007-11-02 2009-05-07 Victor Lam Lighting System for Illumination Using Cold Cathode Fluorescent Lamps
US7973489B2 (en) 2007-11-02 2011-07-05 Tbt Asset Management International Limited Lighting system for illumination using cold cathode fluorescent lamps
US8492991B2 (en) 2007-11-02 2013-07-23 Tbt Asset Management International Limited Lighting fixture system for illumination using cold cathode fluorescent lamps
USD945678S1 (en) * 2019-05-06 2022-03-08 Zumtobel Lighting Gmbh Luminaire
USD960423S1 (en) * 2019-05-06 2022-08-09 Zumtobel Lighting Gmbh Luminaire

Also Published As

Publication number Publication date
GB1012333A (en) 1965-12-08
GB1013127A (en) 1965-12-15
DE1223056B (de) 1966-08-18
NL277851A (de)
ES276895A1 (es) 1962-10-16
CH403979A (de) 1965-12-15

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