Abstract: A flame detector that includes a spacer, a UV transparent window, and a UV sensing elements. The spacer has a spacer wall that extends along a first axis between a first spacer end and a second spacer end. The UV transparent window is disposed at the first spacer end. The spacer wall and the UV transparent window define a gas space. The UV sensing elements is disposed within the gas space.

Abstract: A fluorescent display tube, which has short-length filaments, can be driven by applied voltage of 3-8V to be used for a general fluorescent display tube. The fluorescent display tube can emit sufficient thermal electrons even if the number of filament cathodes is decreased to reduce power consumption of the filaments. The filament cathode is arranged between a first and third supporting plates by one end thereof fixed to the first supporting plate and the other end thereof fixed to the third supporting plate, and the filament cathode having an equal length with the filament cathode extended between the first and third supporting plates is arranged between the second and third supporting plates.

Abstract: A fluorescent display device includes an envelop of which an inner space is in a vacuum state. The envelop has therein a plurality of filament-shaped cathodes supported by a pair of cathode supports; and anodes, each having a fluorescent material, fluorescent materials of the anodes radiating light by impaction of electrons emitted from the cathodes. Each of the cathode supports includes a base fixed to the envelop; one or more anchors, each having an arm serving as a resilient member and a tab for supporting one end of a cathode, the arm having two opposite end portions, one end portion being connected to the base and the tab being disposed at the other end portion; and one or more support members, each being connected to the base and separated from an arm of its adjacent anchor and supporting one end of another cathode.

Abstract: A vacuum fluorescent display including first and second substrates provided opposing one another, and a side glass provided between the first and second substrates to seal a space therebetween; filaments for emitting electrons when a voltage is applied thereto; first and second complex-type filament supports mounted to one of the substrates and supporting opposite sides of each of the filaments; and an anode provided on at least one of the substrates, the anode being illuminated by electrons to realize images, wherein each of the first and second complex-type filament supports includes a fixed plate fixedly mounted to the substrate, at least one tension arm mounted to the fixed plate, at least one tension head provided on a distal end of each of the tension arms, and at least one tensionless head to which one of the filaments is attached, the tensionless head being mounted to one of the tension arms.

Abstract: Bradbury-Nielson gates for the modulation of beams of charged particles, particularly ion beams in mass spectrometry, have been produced with an adjustable wire spacing down to 0.075 mm or a smaller spacing. The gates are robust, they can be fabricated in less than 3 hours, and the method of production is reproducible. In time-of-flight mass spectrometers, fine wire spacing leads to improvements in mass resolution and modulation rates. Gates that were produced using this new method have been installed in a Hadamard transform time-of-flight mass spectrometer in order to demonstrate their utility.

Abstract: A fluorescent display device includes an anode plate and a semiconductor device arranged thereon, wherein the anode plate forms a portion of an envelope of the display device and has an anode on an inner surface thereof. The display device further includes a supporting structure and a tensioning member. The supporting structure is disposed on the anode plate and has a top plate portion overlapping the semiconductor device. The tensioning member is disposed on the top plate portion of the supporting structure and serves to arrange a plurality of filament-shaped cathodes at a pitch between the semiconductor device and the top plate portion.

Abstract: The invention relates to an electric incandescent lamp having a lamp vessel (12), at least one filament (14) which is arranged in the lamp vessel (12) and comprises at least a filament element (15) for generating radiation in the infrared region and in the visible region, and at least one filter (35), which is applied at least partially to the light vessel (12), reflects radiation in the infrared region and is transparent in the visible region, at least for selected wavelengths of radiation, at least one filament element (15) being of flat, in particular strip-shaped construction. It also relates to a method for producing such an electric incandescent lamp. FIG. 5.

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 easy assembly of a filament for a halogen incandescent lamp hav a filament holder frame (4) to retain an essentially planar filament (11) in position, the frame is made of two pre-manufactured identical frame halves (4a, 4b). Both frame halves have a cross element (7a, 7b), having a plurality of filament holders (10a, 10b) secured thereto, and two support strut portions (8a, 9a, 8b, 9b) at the ends thereof. To assemble the lamp, the two frame halves, together with the filament (11), are placed in a suitable jig, and the filament ends are threaded on one of the support strut portions (8a, 8b) of each one of the frame halves. The filament (11) is hooked on the filament holder (10a, 10b) and, by spreading apart the frame halves, the filament is stretched. The support strut portions (8a, 8b; 9a, 9b) are then connected by welding, thus completing the frame (4), and retaining the filament in stretched position.

Abstract: An electron tube cathode has a hollow cylindrical structure formed by thermo-emissive wires mounted between two conductive supports. The two supports are mechanically fixed to each other. To prevent the deformation of the cathode when the heating is turned on and turned off, at least one spring is used, this spring being integrated with one of the supports and being placed in the vicinity of the thermo-emissive wires. The spring is made of a material possessing elastic properties which, at ambient temperature, are lower than or equal to the properties that it has at a temperature greater than ambient temperature.

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: 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 fluorescent luminous device capable of permitting vibration of a filamentary cathode due to any external vibration or shock transmitted thereto to be readily attenuated, to thereby substantially prevent flickering of a display due to a variation in luminance of the luminous section, resulting in improving quality of the display. A part of a vibration adsorbing element provided at the end of a filamentary cathode is separatably contacted with the fixed portion of an envelope in which the element and cathode are arranged.

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: This incandescent lamp includes an envelope, a fine-wire filament within the envelope, and lead wires supported on the envelope and having inner portions within the envelope connected to opposite ends of the filament. The filament is rendered high resistant to damage from vibration and shock by: (a) stiffening the filament with a support wire connected between the envelope and an intermediate point on the filament and (b) constructing the inner lead-wire portions in such a manner that the natural frequency of the filament is between 1.7 and 2.2 times the natural frequency of each inner lead-wire portion.

Abstract: A method of making an axial filament structure for a lamp in which the filament is concentric with the axis of the envelope, wherein a hook-like shape (131) is formed in a support member (117) which stretches the filament to its final turns-per-inch ratio.

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 method of making an axial filament structure for a lamp in which the filament is concentric with the axis of the envelope, wherein a hook-like shape (131) is formed in a support member (117) which stretches the filament to its final turns-per-inch ratio.

Abstract: To permit easy attachment of a coiled filament, and especially a coiled-c or double-twist filament, to the current supply leads within a lamp bulb, in which the current supply leads are made of tungsten, each current supply lead is flattened to form a plate-like flattened surface in the vicinity of the terminal end of the current supply lead. The secondary coiling of a coiled-coil filament--or the single coil of a single-coiled filament--is then slipped over the end portion of the lead-in to extend over and about the flattened portion and with a few turns adjacent the flattened portion and therebeyond on the end portion (15) of the current lead-in, thereby retaining the end portion in position due to the additional width of the flattened portion while providing a reliable electrical contact. The greatest width of the flattened portion is slightly greater than the inner diameter of the secondary coiling of the filament (13), for example about 5% to 20% wider.

Abstract: In a mounting device for electrically heated, spirally wound wire cathodes in electron guns, two mounting posts joined together by an insulator are configured as sector-shaped sections of a hollow cylinder, and have each a circumferential groove on its end remote from the insulator. The surfaces defining the grooves are parts of common circular and cylindrical surfaces, and the mounting ends of the cathodes are of a configuration approximately complementary to that of the grooves in the mounting posts. The mounting ends therefore lie in a spring-biased and form-fitting manner in the circumferential grooves.

Abstract: A field emission cathode 12 is positioned in a pair of intersecting cross grooves 30, 32 in the end of a ceramic tube 14 by a metal end cap 24. A spring 34 in electrical contact with the base of the cathode provides the necessary pressure to maintain continuous circumferential electrical contact between the gate film and a raised edge 38 on the end cap. With this structure the cathode chip is self-centering and easily replaceable. Also the gate film of the cathode is not abraded or rubbed during installation, and the holder is readily degassed.

Abstract: The sections of the filament of a projection lamp are stretched over two sets of supports anchored in glass beams which are fixed on the rigid current supply conductors to form a frame. The supports each consist of a wire having a hooked end which engages the filament between a respective pair of adjacent sections. The supports of at least one set each have an end portion extending transverse to the main link of the support. Each end portion is located at the same given distance from the bend of the hook, and preferably extends from a free end of the hook. This permits each section to be under the same tension.

Abstract: A quartz iodine studio lamp has a tungsten filament (32) formed of several sections (34) arranged in a plane between two quartz bridges (16,18) which are in turn supported by support wires (20,22). One end of the filament assembly (14) is supported in a seal (28) forming one end of the envelope (12). To stabilize the filament assembly, so as to stop it hitting the envelope wall, two spring coils (40) are carried by the bridge (16) remote from the seal (28) and extend transversely of the envelope to its inner surface.

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: An incandescent lamp has a coiled filament with an improved life when it is mounted substantially in the same direction in which a mechanical shock occurs. In a particular embodiment of a miniature lamp known as a switchboard lamp, the filament is mounted, without further support, between two posts. This results in a greater light effectiveness that permits a current reduction through the filament while maintaining desired light output levels in its operational environment. The filament is protected from harmful shock levels by being mounted between twisted posts which orient the filament in the general direction of a mechanical shock imparted to the lamp through key telephone button releases.

Abstract: 1. An electron-discharge device comprising: an evacuated envelope; a cold electrode supported within said envelope; a thermionic filamentary cathode; and means including at least one spring member affixed to said cathode and supported from said envelope for normally supporting said cathode in tension in a position within said envelope spaced from said cold electrode and adapted to relax said tension in response to rapid acceleration of said envelope in a predetermined direction perpendicular to said filamentary cathode, the space between said normal position of said cathode and the inner wall of said envelope being substantially unobstructed in a direction opposite to said predetermined direction whereby said cathode is supported by said wall throughout substantially its entire length when subjected to said acceleration.

Abstract: In a fluorescent indicator tube wherein a cathode filament is provided in an envelope at a prescribed space from anode segments arranged on a substrate, one end of said cathode filament is fixed to a plate-shaped cathode filament-fixing rigid terminal fitted to one end of the substrate, and the other end of said cathode filament is attached to a plate-shaped cathode filament-fixing resilient terminal secured to the other end of the substrate. The plate-shaped filament-fixing resilient terminal comprises a plate member capable of being resiliently deformed in the direction in which the cathode filament is stretched and a frame securely supporting said plate member and fitting the whole of the resilient filament-fixing terminal to the substrate. The forward section of the deformable plate member is made broader than the rear section.

Abstract: An adapter for wire electrode assemblies of electrostatic precipitators so that wire electrodes of the type comprising an elongated electrode wire having its opposite ends terminating axially within two identical shrouds, each of the shrouds shaped as an elongated rod terminating in a combined frusto-cone and enlarged button head may be used with all types of support structures. The adapter comprises a curved or hook shaped piece of metal or other suitable material having in one end thereof a vertically aligned hole or slot adapted to cooperate with a bolt or pin, and in the other end thereof a horizontally aligned keyhole or slot adapted to receive the frusto-conical shroud of a wire electrode, the centers of the vertically aligned hole and horizontally aligned hole being in the same vertical plane.

Abstract: A multi-column fluorescent display tube having a filament cathode provided opposite to a plurality of fluorescent display sections, which comprises at least a filament damper made of an insulating material low in thermal conductivity and having contact sections for supporting and stretching the filament cathode under tension at the middle portion of the filament cathode, and filament damper supporters so formed that it can prevent electrification of the surface of the filament damper.

Abstract: A corona charging device includes a U-shaped corona wire which is mounted between a pair of insulating blocks. One of the blocks has a spring biased plunger which engages the closed end of the wire to thereby place the wire in tension while the other block supports the legs of the wire. The legs of the wire have contact portions thereon which extend into a slot in the associated block. The contact portions are held in engagement with an electrical connector by a wedge. With this arrangement, the corona charging wire is readily replaceable.