Abstract: Disclosed is a method of arranging a conductive wire pattern of a film-type saddle deflection member for a cathode ray tube which properly arranges the conductive wires of each film such that an optimum magnetic field can be obtained, and a film-type saddle deflection member having the conductive wire pattern arranged by the method. In the method, the total number of conductive wires arranged from a horizontal axis of the cathode ray tube to a position having an angle of .theta. is determined by a following equation according to angle .theta. taken from the horizontal axis of the cathode ray rube: [.PHI.(.theta.)=A.sub.1 sin .theta.+A.sub.3 sin 3.theta.+A.sub.5 sin 5.theta.+ . . . ], in which .theta. is an angle taken from the horizontal axis to 90 degree, A.sub.1, A.sub.3, A.sub.5, . . . , A.sub.2N-1 are integers, and n is a natural number.

Abstract: The high pressure discharge lamp comprises a ceramic discharge tube containing an ionizable luminescent material and a starting gas filled in the inner space thereof, a clogging member having through-holes, and at least a portion of which being fixed on the inner side of the end portion of the ceramic discharge tube, an electric conductor having an electrode system inserted in the through-holes of the clogging member, and a sealing material layer. Preferably, the sealing material layer 16A is made of a metallizing layer. In addition, the high pressure discharge lamp comprises the ceramic discharge tube, the clogging member, the electric conductor inserted in the through-holes of the clogging member, and a metallizing layer for sealing provided so as to join to the clogging member and the electric conductor.

Abstract: The high-pressure metal halide discharge lamp has opposite tungsten electrodes (5) carried by electrode rods (7). These rods (7) have a first portion (71) of tungsten adjacent the electrodes (5) and a second portion (72) having a core of tungsten and a skin of at least 90% by weight of rhenium. Their common boundaries are at a location having during operation a temperature in the range of 1900-2100 K. The gas filling contains metal oxyhalide and is devoid of rare earth metal compounds. The lamp has a long life and a high luminous maintenance.

Abstract: A noble gas discharge lamp of the present invention comprises an outer enclosure comprising a light emitting layer formed therein, and a pair of outer electrodes having tape shapes comprising a metal, which are adhered to the entire length of the outside of the outer enclosure so as to separate one outer electrode and the other outer electrode at a certain distance. The electrodes form a first opening portion and a second opening portion; wherein the outer enclosure is filled with at least one kind of noble gas under the confining pressure is in a range of 83 to 200 Torr. There is at least one nonlinear portion formed at at least one side portion of the outer electrodes.

Abstract: In a flat panel display or other type of electron device, a thin-film electron emitter (51) and/or emitter array (50) is formed in a semiconductor film (10) of, for example, hydrogenated amorphous and/or microcrystalline Si, SiC.sub.x, SiN.sub.y, SiO.sub.x N.sub.y or the like. An injector electrode (14) forms a potential barrier (.phi..sub.B) with the semiconductor film (10) at a back major surface (12) of the film (10). A front electrode (15) serves for biasing an emission area (11a) of the front major surface (11) at a sufficiently positive potential (V.sub.15) with respect to the injector electrode (14) as to inject electrons (e) over the barrier (.phi..sub.B) in the operation of the emitter (51) while controlling the magnitude of an electron accumulation layer (Ne) in the semiconductor film (10) at the emission area (11a).

Abstract: A light emitting phosphor having improved luminance is incorporated into an ACTFEL device having front and rear electrode sets, a pair of insulators sandwiched between the front and rear electrode sets, and a thin film electroluminescent laminar stack which includes a phosphor layer having the formula M.sup.II S:D,H,F where M.sup.II is taken from the group calcium, strontium, barium, and magnesium, S=sulfur, D is taken from the group copper, lead, gold, silver, magnesium, antimony, bismuth and arsenic, H is taken from the group fluorine, chlorine, bromine, and iodine, and F is taken from the group gallium, indium, aluminum, germanium, silicon, lanthanum, scandium, and yttrium. Deep blue and green chromaticity phosphors may be obtained through selection of multiple co-dopants and adjusting their relative concentrations.

Abstract: A shatter-resistant lamp assembly is formed by encasing a cylindrical lamp bulb in a seamless non-frangible sleeve that is sealed at each end to one end of the lamp. A straight lamp assembly is made by applying an adhesive to each end of a straight lamp bulb, preferably by wrapping double-sided adhesive transfer tape around each metal end cap of the lamp bulb, inserting the bulb into the sleeve with the ends of the sleeve overlapping the tape wound on each end of the bulb, and compressing the ends of the sleeve onto the tape by heat-sealing. A curved lamp assembly is formed by molding two halves of a curved sleeve with contours to fit the curved lamp bulb. Adhesive is applied to the ends of the curved lamp bulb, the two halves of the sleeve are fastened together with adhesive or by ultrasonic bonding, and the ends of the sleeve are attached to the ends of the bulb by the same means as that used for the straight lamp assembly.

Abstract: A plasma display device comprising: a rear substrate; a plurality of first electrodes formed on the rear substrate in a predetermined pattern; a dielectric layer formed on the rear substrate where the first electrodes are to be embedded; a plurality of second electrodes formed on the dielectric layer to be orthogonal with respect to the first electrodes; and at least one auxiliary electrode formed between the second electrodes.

Abstract: A lateral-emitter field emission device has a thin-film emitter cathode 50 which has thickness of not more than several hundred angstroms and has an edge or tip 110 having a small radius of curvature. To form a novel display cell structure, a cathodoluminescent phosphor anode 60 is positioned below the plane of the thin-film lateral-emitter cathode 50, allowing a large portion of the phosphor anode's top surface to emit light in the desired direction. An anode contact layer contacts the phosphor anode 60 from below to form a buried anode contact 90 which does not interfere with light emission. The anode phosphor is precisely spaced apart from the cathode edge or tip and receives electrons emitted by field emission from the edge or tip of the lateral-emitter cathode, when a small bias voltage is applied. The device may be configured as a diode, triode, or tetrode, etc.

Abstract: There is provided an impregnated-type cathode substrate comprising a large particle diameter low porosity region and a small particle diameter high porosity region which is provided in a side of an electron emission surface of the large particle diameter low porosity region and has an average particle diameter smaller than an average particle diameter of the large particle diameter low pore region and a porosity higher than a porosity of the large particle diameter low porosity region, the impregnated-type cathode being impregnated with an electron emission substance.

Abstract: A flat fluorescent lamp (1) has a discharge vessel (2) having a base plate (7), a top plate (8) and a frame (9) which are connected to one another in a gas-tight fashion by means of solder (10). Structures resembling conductor tracks function in the interior of the discharge vessel as electrodes (3-6), in the feedthrough region as feedthroughs, and in the external region as external supply leads (13; 14). Flat lamps of the most different sizes can thereby be produced simply in engineering terms and in a fashion capable of effective automation. Moreover, virtually any electrode shapes can be realized, in particular optimized with regard to a uniform luminous density with a reduced drop in luminous density towards the edges of the flat lamp. At least the anodes (5, 6) are covered in each case with a dielectric layer (15). The lamp (1) is preferably operated by means of a pulsed voltage source and serves as background lighting for LCDs, for example in monitors or driver information displays.

Abstract: A plasma display panel having a glass substrate, a dielectric layer over the glass substrate and one or more barrier ribs over the dielectric layer, and a method of manufacturing thereof. In the plasma display panel, the thermal expansion coefficients of the glass substrate and the barrier ribs are greater than that of the dielectric layer. The dielectric layer is 80.about.83.times.10.sup.-7 /.degree. C. and the glass substrate and barrier ribs are 84.about.87.times.10.sup.-7 /.degree. C. in thermal expansion coefficient.

Abstract: An apparatus for cooling an electrodeless lamp including a supersonic outlet jet for providing a stream of cooling gas. A common manifold including mounting elements for a plurality of conduits of equal length for transporting cooling gas, wherein the mounting elements are at staggered elevational positions so that the conduits provide cooling gas in the vicinity of lamp envelope at different elevational positions.

Abstract: A deflection yoke for use in a cathode ray tube is disclosed for overcoming a deflection yoke noise problem due to the vibration of a correction projection and simultaneously controlling in an easy manner a local magnetic field adjustment. The deflection yoke includes a net-shaped correction projection for convergence correction formed of a plurality of wires.

Abstract: An annulus fluorescent lamp comprises a plurality of annulus fluorescent tubes having different diameters and disposed substantially concentrically in substantially the same plane. Each of the annulus fluorescent tubes has a first end with electrodes and a second end without electrodes. The second ends of the annulus fluorescent tubes are communicated with each other via a bridge portion so that a single discharge path is formed inside the plurality of annulus fluorescent tubes. The annulus fluorescent lamp also comprises a mouthpiece covering the first and second ends of the annulus fluorescent tubes. The second end forms the lowest temperature portion. The mouthpiece is provided with through holes for ventilation close to the second end and an insulating wall on an inner face for separating power lines at the first ends from the through holes for ventilation.

Abstract: A face panel (12) constituting a part of a vacuum envelope (20) has a substantially rectangular effective area (10), the inner surface of which is formed with a phosphor screen (14). The effective area has a long axis (X) extending in the horizontal direction and a short axis (Y) extending in the vertical direction. The outer surface of the effective area is cylindrically curved with an infinitely large radius of curvature along the long axis and a predetermined radius of curvature along the short axis. The vacuum envelope has arranged therein a shadow mask (15) in opposed relation to the phosphor screen. A mask body of the shadow mask has a substantially rectangular effective surface cylindrically curved with an infinitely large radius of curvature along the long axis and a predetermined radius of curvature along the short axis thereof.

Abstract: A field emission cold cathode in which all protrusion portions and corner portions around a gate electrode as well as corner portions facing an anode electrode are formed so as to be at obtuse angles or arc-shaped, whereby discharging of the gate electrode is suppressed to prevent breakdown of the device. A dummy electrode having more acute protrusion portions of the gate electrode is provided around the gate electrode, to further suppress discharging of the gate electrode.

Abstract: A color cathode ray tube has a shadow mask. The shadow mask is provided with a layer of a material having an average Z number below 20 on the side facing the phosphor screen. The layer is preferable deposited by means of electrodeposition.

Abstract: Area cathode device for generating free electrons in a first evacuated chamber comprises a back plate; a silica glass substrate peripherally sealed to the back plate to produce a second chamber; a gas contained in the second chamber; a layer of photo-sensitive material disposed on the surface of the substrate external to the first chamber; a cathode phosphor layer disposed between the back plate and the substrate; and a pair of electrodes facing each other from opposite sides of the second chamber for energizing the gas to generate a plasma for exciting the cathode phosphor layer to generate light energy for producing electron emissions from the photo-sensitive material.

Abstract: A plasma display panel is disclosed including a transparent insulating substrate having a plurality of striped grooves, whose portions between the grooves serve as barrier ribs; vertical transparent electrodes each of which is formed in each groove; a fluorescent layer formed on the vertical transparent electrode; horizontal electrodes in strip arrangement having a predetermined distance between one another, and being perpendicular to the transparent vertical electrodes; and supporting means which are respectively located on the edge portions of the substrate for supporting the horizontal electrodes.