Abstract: A resistive heater capable of delivering heat loads on the same order as those produced by in-pile nuclear fuel experiments. The heater rod provides the energy for high-temperature steady-state testing, as well as the power needed to simulate the transient pulse in the Transient Reactor Test Loop (TRTL) system. The resistive heater includes a removable housing, two or more thermal conductors in the housing; and one or more stabilizers coupled to the two or more thermal conductors to keep the two or more thermal conductors separated to avoid shorting, wherein the two or more thermal conductors are coupled to the housing via an inert gas (e.g., Helium). The two or more thermal conductors comprise a material with substantially zero infrared spectrum (e.g., sapphire, silica, or glass).

Abstract: A module (10) for heating a preform (12) made of a thermoplastic, includes: a lamp (16) having an emissive portion (22) emitting heating electromagnetic radiation and a non-emissive portion (24) that does not emit the heating radiation; and a longitudinal lens (32) that is fastened to the lamp (16), by at least one fastening brace (34), parallel to the emitting portion (22) in order to focus the heating radiation toward a selected zone of the preform; wherein each brace (34) is only fastened to the non-emissive portion (24) of the lamp (16).

Abstract: Embodiments provide a halogen lamp configured to minimize a short circuit of a filament. Provided is a halogen lamp that includes a support part passing through a bulb and disposed in the bulb. A filament is hung on the support part. Thus, a short circuit of the filament is minimized.

Abstract: A halogen bulb for vehicle headlights, comprising at least one filament, which is designed such that it can be used as a light source for generating a low-beam or high-beam and during operation has a lower electric power consumption than the filaments of conventional halogen bulbs used to generate a low-beam or high-beam.

Abstract: An infrared heat lamp (200) having a vertical burning position includes an outer tubular member (202) and a heating element (208) having a coiled portion (214) at least partially disposed within the outer tubular member (202). The heating element (208) includes first and second terminal ends (210, 212), wherein the coiled portion (214) is defined therebetween, the coiled portion (214) having a plurality of turns (216) defining a through passage (218). The heat lamp (200) further includes an inner elongate member (222) disposed within the through passage (218) of the coiled portion (214), the inner elongate member (222) having a plurality of support members (224) extending therefrom. Each of the plurality of support members (224) engages at least one of the plurality of turns (216) of the coiled portion (214), whereby the coiled portion (214) is supported by the plurality of support members (224) when the heating element (208) is in a vertical orientation.

Abstract: An infrared heat lamp (200) having a vertical burning position includes an outer tubular member (202) and a heating element (208) having a coiled portion (214) at least partially disposed within the outer tubular member (202). The heating element (208) includes first and second terminal ends (210, 212), wherein the coiled portion (214) is defined therebetween, the coiled portion (214) having a plurality of turns (216) defining a through passage (218). The heat lamp (200) further includes an inner elongate member (222) disposed within the through passage (218) of the coiled portion (214), the inner elongate member (222) having a plurality of support members (224) extending therefrom. Each of the plurality of support members (224) engages at least one of the plurality of turns (216) of the coiled portion (214), whereby the coiled portion (214) is supported by the plurality of support members (224) when the heating element (208) is in a vertical orientation.

Abstract: Traditional methods of making headlamp coils have left a portion of the coils with slightly irregular forms. These irregularities can result in defects in the ultimate beam pattern. Accommodating these defects in robust lamp and headlamp optical systems can reduce the performance that might otherwise be available. The preferred coil is therefore continuously coiled as a straight body, and carefully cut into segments. Subsequently, legs are welded to the coil segment ends. The coil is then left substantially undistorted by the manufacturing process that would otherwise normally leave a portion of the coils distorted. The method particularly enables a functional center leg coil.

Abstract: A conductor assembly and method of manufacture. The assembly includes a magnetic coil positioned about a curvilinear axis with one or more coil rows comprising conductive material having an arcuate shape. A generated field is characterized by a dipole component having a first magnitude, a quadrupole component having a second magnitude, a sextupole component having a third magnitude and a decupole component having a fourth magnitude. The third and fourth magnitudes are each 10?3 the first magnitude or less.

Abstract: Embodiments provide a halogen lamp configured to minimize a short circuit of a filament. Provided is a halogen lamp that includes a support part passing through a bulb and disposed in the bulb. A filament is hung on the support part. Thus, a short circuit of the filament is minimized.

Abstract: Traditional methods of making headlamp coils have left a portion of the coils with slightly irregular forms. These irregularities can result in defects in the ultimate beam pattern. Accommodating these defects in robust lamp and headlamp optical systems can reduce the performance that might otherwise be available. The preferred coil is therefore continuously coiled as a straight body, and carefully cut into segments. Subsequently, legs are welded to the coil segment ends. The coil is then left substantially undistorted by the manufacturing process that would otherwise normally leave a portion of the coils distorted. The method particularly enables a functional center leg coil.

Abstract: A lamp (10) comprising an hermetically sealed, cylindrical envelope (12) arrayed about a longitudinal axis (13); two filament supports (14, 16) sealed in the envelop; a filament (18) fixed between the filaments supports; and an internal reflector (20) in the envelope for directing light emitted from the filament outwardly from the envelope.

Abstract: A fluorescent display tube is disclosed. In the fluorescent display tube, linear members, such as, for example, wire grids and filament are sustained in a predetermined height, while both ends of each linear member are welded on a metal layer by ultrasonic. The fluorescent display tube includes a metal spacer for fixing the linear member and holding the linear members in an elevated position so that the dead space within the fluorescent display is reduced. The linear members are bonded on an aluminum thin films formed on the glass substrate 111 by way of the aluminum spacer. The aluminum spacer sustains the linear members in a predetermined height. Aluminum spacer acts as a member for fixing the linear member and as a height level holding member.

Abstract: A low-pressure mercury vapor discharge lamp includes a discharge vessel having two end portions. An electrode carrier is arranged in an end portion and carries an electrode for generating and maintaining a discharge in the discharge vessel. The electrode carrier is at least partly made of a bimetal or a memory metal, and is formed such that the distance between electrode and the far end of the end portion increases if the temperature of electrode carrier increases.

Abstract: The invention relates to an infrared radiation source having at least one electrical heat conductor situated in a long, two-ended casing tube made of quartz glass, the casing tube having at least one elevation made of quartz glass on its wall which faces the at least one heat conductor, which locally reduces the inner diameter of the casing tube. At least one heat conductor is designed as a heating coil. The casing tube has a constant outer diameter in the region of the heating coil, the elevation has a convex shape on its surface facing the heating coil, and the heating coil contacts the elevation only at the highest point of the elevation.

Abstract: The invention relates to a halogen incandescent lamp for operating on line voltage, at least comprising a hermetically sealed, cylindrical bulb (2) made from transparent material, a filling made from inert gas and a halogen additive, a luminous element (4), a current supply system, and a mount (5), which is formed from a single-piece support wire, one end region of which is bent away transversely to the lamp axis, and which retains the luminous element (4) in the vicinity of the end of the bulb (2) remote from the pinch, wherein a luminous element (4) bent virtually into a U-shape is arranged symmetrically relative to the lamp axis, the luminous element (4) is held twice by the mount (5) in the region of the portion of the luminous element (4) which is arranged transverse to the lamp axis, and one end of the mount (5) is fixed in a pinch (3).

Abstract: The invention relates to a light bulb comprising a base BA to which a filament FIL is connected, which filament is intended to emit a luminous radiation and has turns arranged in spiraling fashion around an axis of revolution AX. According to the invention, the light bulb in addition comprises a plurality of hooks H1, H2, and H3, each being in contact with one of the turns of the filament, and being connected to the base BA by means of a support SUP. The invention enables to keep the filament FIL securely in position, which reduces the risk that several turns of said filament will come into contact with the support SUP, thus creating a destructive short-circuit.

Abstract: An incandescent lamp comprising a glass bulb (3) of tubular shape in which a filament (4) is axially arranged. The end is hermetically sealed by means of a pinch (5) applied around a metal foil (1) to which an outer current lead (7) and an inner current lead (6) electrically connected to the filament are fixed. A second, intermediate flat foil (2) is connected directly to the end (9) of the filament, between the latter and the inner current lead (6), and the bulb is elbowed at the level of said second flat foil (2).

Abstract: The filament structure comprises a filament with a coiled portion and an uncoiled portion. A tube is disposed on a free end of the uncoiled portion. The tube has two ends and a passage with a central axis extending between the two ends. At least one of the ends comprises an extension which projects positively above a medium plane of the end of the tube. This medium plane is perpendicular to the central axis of the tube. A method for positioning such a tube on the free end of a filament comprises the following steps. The free end of the filament is inserted in a slit between two parallel support surfaces so that the free end is projecting upward. The tube is placed on the free end of the filament so that the extension of the tube projects downward towards the support surfaces and the lower end of the tube abuts at least one of the support surfaces.

Abstract: A mount for a fluorescent lamp that comprises a glass base with spaced-apart lead-in wires extending from therefrom. A longitudinal electrode coil containing an emitter material is mounted upon and extends between the lead-in wires. A coating of zinc oxide is provided on the ends of the electrode coil and upon the lead-in wires at least in the area where the electrode coil is mounted.

Abstract: A flat fluorescent discharge lamp is disclosed, which includes a first glass substrate having a plurality of electrodes to apply a voltage, a second glass substrate deposited with a first phosphor film on a surface opposite to the first glass substrate, a hollow spacer formed between the first and second glass substrates, having a window on at least one side, and a second phosphor film deposited on inner and outer sides of the spacer.

Abstract: A mount for a fluorescent lamp that comprises a glass base with spaced-apart lead-in wires extending from therefrom. A longitudinal electrode coil containing an emitter material is mounted upon and extends between the lead-in wires. A coating of zinc oxide is provided on the ends of the electrode coil and upon the lead-in wires at least in the area where the electrode coil is mounted.

Abstract: An incandescent lamp has a filament formed by a plurality of filament segments. Each segment is formed by a straight coil section. The segments are mutually parallel and arranged in several layers. A first layer of filament segments is arranged along a first curved surface, and a second layer of filament segments is arranged along a second curved surface. The two curved surfaces are symmetrical with respect to a plane.

Abstract: A supply lead (7) for a halogen incandescent lamp is bent in a U-shaped fashion and comprises a base (15) and two limbs (16). The ends of the limbs engage in the end region (6) of the luminous element by means of hook parts (20). A section (11) at the end, on the side of the luminous element, of the associated foil is folded back and forms a fold (12) in which the base (15) is held mechanically.

Abstract: An electric incandescent lamp has a filament having two incandescent portions interconnected by an intermediate non-lightemitting conductor. The filament is accommodated in a single ended, pinchsealed tubular glass envelope and is supported therein in that the intermediate conductor is embedded in an inner portion of a second pinch seal. The lamp has means to lower the temperature of the intermediate conductor and thereby of the second pinch, if the maximum permissible temperature of the latter would otherwise be exceeded.

Abstract: To positively locate a filament (5, 22) in position within a bulb (2) of a halogen incandescent lamp, the walls of the bulb are deformed at selected points along the length of the filament within the bulb to define at least three inwardly projecting dimples which just barely engage, or engage, the filament. Preferably, the filament is formed with a connecting portion (7) in the region of engagement, which connecting portion is either straight, coiled with a very steep pitch, or, if the filament is double-coiled, only single-coiled. The connecting portion (7) may be electrically short-circuited by a core pin (39). If the bulb is single-ended (FIG. 3), a return lead (29) along the wall of the bulb, can be pinched between adjacent walls (45) of adjacent dimples. The dimples, looked at from the outside of the lamp, are essentially funnel-shaped and, in cross section, may be circular, or if space between adjacent dimples is insufficient, may be elliptical.

Abstract: To permit ready insertion of a holding frame for a filament into an essentially tubular bulb, particularly a halogen incandescent lamp bulb made of quartz glass or hard glass, the frame has two legs extending along the wall of the bulb, connected by a holding portion to hold the filament at the end remote from the current supply leads to the filament, one of the legs of the frame is shorter than the other, for example only about one-third the length of the bulb. The longer leg of the frame can be pinch-sealed in a pinch seal closing off the bulb. The holding portion, which is intermediate the two legs, is preferably U-shaped to form a hook into which the filament can be hooked; or, particularly if the legs of the U are close together, about which the filament can be wound.

Abstract: Filament supports for supporting and centering a filament in a double-ended lamp envelope include an inlead portion defining a central axis, a filament attachment portion and a centering portion interconnecting the inlead portion and the filament attachment portion. The centering portion contacts an inner surface of the lamp envelope at a plurality of discrete, circumferentially spaced-apart contact regions that are substantially equally spaced from the central axis. The filament supports are attached to opposite ends of the filament for accurately centering the filament within the lamp envelope. The filament supports are particularly useful in a tubular incandescent lamp capsule having an infrared reflective coating on its outer surface.

Abstract: A filament support for supporting and centering a filament in a double-ended lamp envelope includes an inlead portion defining a central axis, a filament attachment portion and a centering portion interconnecting the inlead portion and the filament attachment portion. The centering portion includes first and second arcuate segments for contacting an inner surface of the lamp envelope. The first and second arcuate segments are axially spaced apart and are interconnected by an axial segment. Filament supports are connected to opposite ends of the filament for accurately centering the filament in the lamp envelope. The filament supports are particularly useful in a tubular incandescent lamp capsule having an infrared reflective coating on its outer surface.

Abstract: A method for safe and tight installation of a filament using a supporter obviates the need for welding. The supporter has an upstanding member such as a wing formed on the top of upward extensions from its surface. The member is located on one side of a plate of the supporter and has a clamping groove to hold and fix the end of the filament. The filament also can be wound around a lower part of the member thereby fixing the filament without welding.

Abstract: A lamp bridge may be formed from a siliceous hollow tube positioned between and melted to bridge supports. The hollow tube melts more quickly, and more completely, and therefore bonds stress free and more durable to the bridge supports.

Abstract: To support a filament, or filament structure, in a halogen incandescent l, which may have a V or U filament, a straight filament, or be of the lumiline type, support ribs are placed within the lamp, which support ribs are formed from the lamp bulb material itself, by deforming the lamp bulb after local softening, for example by punches or by applying a vacuum, to provide interiorly extending, essentially tubular ribs. The tubular ribs may have circular or oval cross section, and can be placed to engage the filament to, for example, pinch the filament therebetween. In the pinching regions, the filament preferably is straight or only single-coiled and may be supported by a core pin.

Abstract: An electric lamp having a filament with open coiled ends and filament inserts have an end insertable into the open filament ends without threading cooperation and lockingly engage the filament turns. The ends of the filament inserts provide a resilient ratchetted coupling with the successive turns of the coiled filament ends. The filament inserts replace integral coil legs for coil mounting in the lamp.

Abstract: A coiled-coil incandescent body (5) of an electric incandescent lamp has a single coil intermediate portion (12) extending axially in the lamp vessel (1) and surrounded by a support member (20). The support member comprises an open ring (21) with ends (22, 23) defining a gap (24). Portions (25, 26) of these ends (22, 23) extend towards the axis (2) and have bent end portions (27, 28) which are inserted into secondary turns (13, 14) of the incandescent body (5). The support member (20) cannot be shifted along the incandescent body (5).

Abstract: An electric incandescent lamp having an improved coiled refractory metal filament construction is disclosed which enables the lamp to provide a more precise light source. Various lamp and coiled filament configurations are disclosed to include employment of a reflective film for improved efficiency of lamp operation while a halogen substance can also be included in the inert gas filling for this purpose. A method to manufacture the disclosed lamp improvement is also provided.

Abstract: An elongate incandescent lamp for a scanning apparatus comprises an elongate transparent tube enclosing an elongate filament supported only by its ends and maintained under tension by a compression spring surrounding a relatively low resistance slidably supported rod member that supports the corresponding end of the filament and conducts current to the filament.

Abstract: A spud made of refractory metal wire in the shape of a ring with a loop on each side radially aligns and provides electricity to a filament in a double ended tungsten halogen lamp. The spud has a leg extending from the end of each loop, one of which is attached to the filament and the other forming part of an inlead assembly. This spud is particularly useful with relatively small size double ended tungsten-halogen lamps having an infrared reflecting coating on the surface of the vitreous filament chamber.

Abstract: An electric incandescent lamp having improved means for both physically positioning and controlling the light output from a filament light source is disclosed. The lamp construction can further employ a reflective film for improved efficiency of lamp operation while a halogen substance can also be included in the inert gas filling for this purpose. A method to manufacture the disclosed lamp improvement is also provided.

Abstract: The electric incandescent lamp has a filament connected to current supply conductors and kept taut by a frame of longitudinal arc discharge conductors and transverse insulators. The arc discharge conductors are each connected to a point on the current supply conductors, at least one of them being connected through a arc discharge interruption fuse. When switching on and operating the lamp, the arc discharge interruption fuses and the arc discharge conductors are not included in the current circuit. The arc discharge conductors are positioned with respect to the filament so that upon formation of a discharge arc between fragments of the filament the arc flashes over to the arc discharge conductors. Only upon flash over of the arc to the arc discharge conductors does current flow through the arc discharge interruption fuse. The fuse interrupts the current and extinguishes the arc.

Abstract: To positively position the components of a filament mount, including filats (6, 7) and a cover cap (11) shrouding a filament, for use in a dual-filament automotive-type lamp, one of the current supply leads (10') is extended towards the exhaust tip (4) of the lamp. A guide element (13), which terminates in an at least essentially part-cylindrical region, is melted-in into the exhaust tip (4), and receives the end portion (12) of the current supply lead. If the element is springy, for example a spiral spring permitting compression, the spring (13) and the current lead wire (10') can be welded together, particularly for lamps which have low thermal loading. In lamps which have high thermal loading, the end (12) of the current lead (10') is preferably received loosely within the spiral spring to minimize heat transfer; additionally, a heat insulating jacket (14), for example in form of a small ceramic tube or a glass coating, can be interposed between the spiral spring (13) and the current supply lead.

Abstract: An improved electric lamp including an envelope having a sealed end portion, a coiled tungsten filament structure within the envelope, a pair of tungsten lead-in conductors sealed within the envelope and coupled to the filament structure, a first insulative (e.g., quartz) bridge disposed within the envelope between the filament and the envelope's sealed end, and a pair of support wires which also extend within the envelope adjacent the lead-in conductors respectively, to provide support for the contained filament structure. The improvement comprises reinforcement means in the form of a pair of platinum-clad molybdenum wire members each having a smaller diameter than that of the lead-in conductors and support wires, each of these wire members being welded to a respective pair of said conductor and support wire elements at a location between the lower bridge and sealed end. The wire members may be of curvilinear (e.g. U-shaped) configuration or of straight configuration, or a combination of both.

Abstract: In a magnetron cathode assembly having a filament for emitting thermoelectrons, upper and lower end shields fixed at upper and lower ends of the filament, a center lead fixed at and connected to the upper end shield, a side lead fixed at and connected to the lower end shield, and an insulating spacer having through holes with which the center and side leads are respectively engaged, the insulating spacer comprises a groove which has a width substantially the same as a diameter of one of the through holes and which clamps a bent portion of at least one of the center and side leads.

Abstract: A tungsten-halogen lamp including a tubular quartz envelope wherein both of the lead-in conductors designed for providing electrical energy to the lamp's coiled filament are strategically positioned within a single, press-sealed end portion of the lamp's envelope. Electrical connections to the lamp may thus be provided at only one end thereof to thereby facilitate positioning and connection of the lamp within a photocopier or similar machine. The lamp is suited for high wattage applications (i.e., about two-hundred watts per linear inch of filament or greater) by the utilization of an expansion coil section which is provided in one of the lamp's two lead-in conductors to prevent bowing of the lead-in conductor and its quartz sleeve. This coil section enables the conductor to expand during the high temperatures encountered when the lamp is operated at such high wattages.

Abstract: A tungsten-halogen lamp including a tubular quartz envelope wherein both of the lead-in conductors designed for providing electrical energy to the lamp's coiled filament are strategically positioned within a single, press-sealed end portion of the lamp's envelope. Electrical connections to the lamp may thus be provided and only one end thereof to thereby facilitate positioning and connection of the lamp within a photocopier or similar machine.

Abstract: Heating apparatus includes a tray having a layer of insulative material disposed therewithin, above which a number of infra-red lamps are supported. The ends of each lamp are provided with a pinch seal having an amp tag connector, which is connected to the respective end of a filament within the lamp, sealed therein. Each pinch seal is enclosed within a ceramic housing and the heating apparatus is mounted beneath a layer of glass ceramic.A plate of heat-conductive material is intimately disposed between the top surface of one or more of the ceramic housings and the under surface of the glass ceramic, so as to encourage heat from the pinch seals to conduct in an upward direction towards the glass ceramic.

Abstract: An improved incandescent light bulb which is capable of affording increased light efficiency without a resultant increase in either cost or energy consumption. In one embodiment of the bulb, said bulb includes a refractory stiff supporting element, at least one elongated helical resistive filament, two terminals which are each capable of being physically and electrically connected to a different socket and an elongated light transmissive envelope. In another embodiment the bulb additionally includes a reflector bonded to the envelope which reflects light and conducts heat away from said envelope. The stiff supporting element is formed to have a hollow interior. In said hollow interior a magnetizable elongated slug and two holding magnets may be contained. The slug and holding magnets cooperate with a switching means in the interior of the envelope to allow the bulb to selectively emit either a bright or a dim light.

Abstract: A tubular incandescent lamp for use in a fusing type lamp in a photocopy machine in which the lamp filament means is capable of operation at two different lengths on a selective basis as a function of the different lengths of paper that are to be reproduced by the copier. In one embodiment the filament means comprises a single linear filament with the contacts being taken at opposite ends of the filament for full length reproduction and along a predetermined length of the filament or shorter length of reproduction. In an alternate embodiment of the invention, two different length filaments are employed, each one selectively and mutually exclusively operated.

Abstract: In an electric incandescent lamp having a tungsten filament with a number of light-emissive sections (5, 7) connected by a non-light-emissive conductor, complicated constructions are often used so that said non-light-emissive conductor dissipates little energy.In such an incandescent lamp according to the invention the non-light-emissive conductor consists of a piece (9) of the tungsten wire (1) from which the light-emissive sections (5, 7) have been wound helically and around which a wire (2) of a less noble metal than tungsten is wound.The lamp may be used as a copying lamp. FIG. 1e.

Abstract: A wire support for the coiled-coil filament of a tubular double-ended incandescent lamp in which the support is formed of a single wire which extends longitudinally along a portion of the inner wall of the lamp envelope, with each end of the support wire terminating in a loop of a size to be circumferentially engageable with the inner wall of the envelope, and a midportion of the support wire extending laterally in closed loop form to firmly embrace a localized point on a turn of the filament so that the turn extends through that midportion loop and is supported therefrom.

Abstract: A tubular arc low pressure discharge lamp is disclosed which has its end electrodes connected through the lamp envelope then to the tube pins. This permits the electrodes to be physically located closer to the lamp ends and decrease end illumination falloff.

Abstract: An improved filament support of especial value in linear tungsten halogen lamp of low wattage, is formed from a composite wire which comprises a core wire overwound with a further wire, both of tungsten. The supports according to the invention afford better grip and reduced weight as compared with the supports of the prior art.