Abstract: The invention relates to a preferably large-format image display device that is constructed from a plurality of individual silent gas discharge lamps.

Abstract: The objective of the present invention is to provide a phosphor for use in a light emitting element excited by vacuum ultraviolet-ray that has high brightness even after plasma exposure. This object is achieved by a phosphor comprising a compound represented by a formula M11−aM211−bMna+bO18−(a+b)/2 (wherein, M1 represents at least one of materials selected from the group consisting of La, Y and Gd, and M2 represents at least one of materials selected from the group consisting of Al and Ga, a represents a number in a range from not less than 0 to less than 1, b represents a number in a range from not less than 0 to less than 1, and sum of a and b is greater than 0), and by a light emitting element excited by vacuum ultraviolet-ray comprising the above-mentioned phosphor.

Abstract: A lamp holder that can receive a discharge lamp has an insulating body that can work with an electrically conductive junction box. The junction box has a bottom, an opening opposite the bottom, and one or more sidewalls circumscribing the opening. The insulating body is sized to fit at least partially into the box, and has a flange sized to surmount and circumscribe the sidewalls that circumscribe the opening. The insulating body has (a) a cavity with a lamp entryway, and (b) a wire passageway providing access into the cavity. The wire passageway may travel partly underneath the cavity, or through a portion of the wall having a relatively greater wall thickness (or may travel otherwise.) A lamp contact is mounted in the cavity for electrically engaging the discharge lamp.

Abstract: A cathode ray tube device in which two deflection yokes and two electron guns are used, but in which only one shadow mask is used. Image uniformity is obtained by creating a partial overlap of the two images created by the two yokes.

Abstract: A deflection yoke includes a pair of horizontal deflection coils facing each other with the horizontal axis interposed therebetween, for deflecting the electron beams in a direction of a first axis, and a pair of vertical deflection coils facing each other with the vertical axis interposed therebetween, for deflecting the electron beams in a direction of the second axis. The winding of each horizontal deflection coil is wound such that the horizontal axis side bears a relatively high potential and the vertical axis side bears a relatively low potential, and includes a first terminal provided on the high potential side, a second terminal provided on the low potential side, and a third terminal provided at the intermediate portion of the winding and positioned on the side of the low potential relative to a portion where the inductance of the horizontal deflection coil is equally divided into two halves.

Abstract: A continuous wave electron-beam accelerator that accelerates a continuous wave electron beam having a large average current includes an electron beam generator 11, an electron-beam accelerating unit 13 using a radio-frequency electric field having a frequency of approximately 500 MHz to accelerate an continuous wave electron beam, and electron-beam bending units 14, 15, 16 that are provided across the electron-beam accelerating unit and that bend the continuous wave electron beam a number of times. Each electron-beam bending unit includes divided magnets 15,16 having identical-polarity magnetic fields, and controls the continuous wave electron beam to pass through the electron-beam acceleration unit 13 a number of times on almost the same path.

Abstract: Device adapted for efficient light emission including a plurality of component layers of which a first outer layer is adapted for electron injection, a second opposing outer layer is adapted for hole injection, and plural intermediate layers arranged therebetween for charge semi-conduction. The intermediate layers include at least one semi-conducting polymer adapted for hole transport and/or electron blocking, and at least one semi-conducting polymer adapted for hole blocking and/or election transport. The at least one semi-conducting polymer adapted for electron transport and/or hole blocking comprises polymer selected from a nitrogen and/or sulphur containing polymer which is partially or substantially conjugated.

Abstract: In a simple and slim double-faced vacuum fluorescent display device having no grid with low power consumption and low fabrication cost, in order to turn on fluorescent layers P111 to P141 of segments D11 to D14 in an anode electrode set D1 on a back plate S2, 12V, 0V, 0V and −12V are applied to the segments D11 to D14 in the anode electrode set D1 on the back plate S2, the other segments on the back plate S1, segments C11 to C15 in an anode electrode set C1 on a front plate S2 and the other segments on the front plate S1, respectively. In order to turn on segments C12 and C16 in the anode electrode set C1 on the front plate S1, 12V, 0V, 0V and −12V are applied to the segments C12 and C16 in the anode electrode set C1 on the front plate S1, the other segments on the front plate S1, the segments D1 to D14 on the back S2 and the other segments on the back plate S2, respectively.

Abstract: A method of fabricating an organic electroluminescent display, which includes laminating together a plurality of self-supporting organic light-emitting devices, each of which is capable of functioning separately as an individual device; wherein each of the organic light-emitting devices in the display emits radiation differently from one another in respect of color, pattern and/or direction; and wherein each of the organic light-emitting devices in the display includes a substrate, a first electrode and a second electrode, at least one of which electrodes is at least semi-transparent, and an organic electroluminescent layer between the electrodes.

Abstract: A liquid crystal cell and a plasma cell are layered together with a dielectric sheet in between. Data electrodes (column electrodes) are constructed to form parallel columns on the underside of an upper substrate in a display cell. Discharge channels filled with ionizable gas are constructed in parallel rows in a plasma cell. Row electrodes are constructed on the upperside of a lower substrate corresponding to each of the discharge channels, and reference electrodes to which reference voltages are applied, are constructed inside each of the discharge channels. Data voltages are applied to the data electrodes and drive pulses are applied to the row electrodes. The polarities of the data voltages are changed so as to be opposite to the polarities of the drive pulses with respect to the reference voltages. Each time the polarities of the drive pulses are inverted, plasma discharges are generated in the discharge channel corresponding to the row electrodes to which the drive pulses are applied.

Abstract: This invention provides a compact, efficient and well-designed circular fluorescent lamp with high output power. The circular fluorescent lamp has less non-luminant region and good characteristics of luminous intensity distribution, and keeps high level of lamp lumen output. Circular arc tubes are disposed concentrically on the same plane. Electrodes are attached to the tube-end parts of the one side of the circular arc tubes respectively, and the other tube-end parts of non-electrode side are sealed. The circular arc tubes are joined each other near the tube-end parts of the non-electrode side with a bridge-jointed portion, so that a discharge path is formed between the electrodes inside the arc tubes. The tube outer diameter of the circular arc tubes is 14 mm, the circle outer diameter of the outer circular arc tube is 150 mm, and the circle inner diameter of the inner arc tube is 90 mm.

Abstract: Light arrays for use in systems for separating and irradiating blood are disclosed. In accordance with the present invention, the light array has one or more bulbs with electrical connecting leads and first and second support members connected to the bulbs. The second support member preferably includes a connector for receiving the electrical leads. The support members preferably define an end surface and an interior surface, wherein the support members are disposed adjacent the bulbs so the end surfaces are opposed to define a channel, providing a space where tubing carrying blood or other fluids can be disposed without interfering with the array. The bulbs are most preferably attached to the support members using flexible self-locking straps, and in embodiments using two or more bulbs, the bulbs are also preferably held together by one or more straps. Improved mounting systems for connecting the array to the instrument by one or more spring mounts are also disclosed.

Abstract: A discharge lamp having a large light output and a stable discharge. On an external surface of a cylindrical glass bulb enclosing a rare gas such as xenon, a pair of beltlike electrodes are mounted so as to face each other. A light output part is provided between the electrodes, and the electrodes are situated close to each other on the opposite side to the light output part. An image display device is constituted by arranging a plurality of the discharge lamps.

Abstract: A high pressure discharge lamp includes a pair of arc tubes connected electrically in parallel within an outer envelope, which includes a lamp stem having a pair of stem conductors entering the lamp envelope in a common plane. The arc tubes include conductive feed-throughs at each end thereof. A lamp frame supports the arc tubes in a plane parallel with the stem conductors and is welded directly to each of the feed-throughs with all welds in a common plane with the welds between the frame and the stem conductors. The frame includes a resiliently deformable transverse member which allows for independent changes in length of the arc tubes during lamp operation due to thermal expansion/contraction. The frame is free of slip fit connections with the feed-throughs and free of additional conductive straps connected to the feed-throughs.

Abstract: A festoon style lamp containing xenon gas. The xenon lamp (22) has cylindrical, conical tipped end caps (36a) and (36b), a tungsten filament (34), and a cylindrical bulb (32). The end caps (36a) and (36b) are made of conductive material such as aluminum or nickel-plated brass, and are designed to adapt the lamp to fit into spade shaped contacts.

Abstract: A high-pressure sodium arc discharge lamp having a novel arc tube support member which provides a secure mechanical and electrical connection and does not require welding between the support member and the arc tube lead wire or feedthrough. The support member may be adapted for mounting a single arc tube or two arc tubes within the outer envelope. The feedthrough of each arc tube is inserted into an aperture in the support member such that a secure interference fit is achieved. The interference fit is similar to the fastening of a threadless nut. In a preferred embodiment, the support member has a first planar surface having one or more apertures therein and two second planar surfaces substantially perpendicular to the first planar surface; each second planar surface has a protruding leg by which the support member may be mounted on the internal lamp frame.

Abstract: A radiation-emitting panel such as for back lighting a display has three transparent glass plates sealed together around their edges to form two gas-discharge volumes. The plates are supported within their edges by two identical arrays of pillars formed integrally from the plates. The lower surface of the lower plate is profiled with inverted frusto-pyramids and coated with a reflecting layer. Electrodes normally cause discharge within the upper volume, and the emission of light. Electrodes can be used to excite the lower volume, such as on failure of the upper volume, the reflector acting to reflect light preferentially into the pillars.

Abstract: A short-wave infrared radiator includes a longitudinally extended twin tube having two partial chambers running in longitudinal direction. The radiator can optionally be heated over its entire length or a partial length. The radiator is divided into two radiator segments, each having a heater coil and in the vicinity of a partition wall, the heater coils of partial chambers are electrically connected with the heater coils of other partial chambers of the segments. The radiator includes terminals of respective radiator ends to form a power supply and a power return.

Abstract: A fluorescent lamp has at least a pair of electrodes, at least two circular discharge tubes connected to said electrodes and enclosing rare gas and mercury therein, and a phosphor coating provided on an inside wall of each of said discharge tubes, the two circular discharge tubes being arranged coaxially circularly on one and the same plane, the diameter of each of the discharge tubes being selected to have a value within a range of from 5 mm to 25 mm both inclusive, the luminance on surface of each of the discharge tubes being selected to have a value within a range of from 2.times.10.sup.4 Cd/m.sup.2 to 6.times.10.sup.4 Cd/m.sup.2.

Abstract: A tube type incandescent lamp having light-emitting parts and non-light-emitting parts, wherein a filament assembly comprises coiled filaments and short bars, which are arranged alternately, the short bars are separately held by their corresponding constricted portions provided in a tube envelope made of glass, and each of the light-emitting parts and the non-light-emitting parts is formed of a space portion surrounded by the tube envelope part between adjacent constricted portions. The outermost ones of the short bars in the filament assembly are shorter than the other short bars and two light-emitting parts are continuously formed at each outer portion of the incandescent lamp.

Abstract: A vapor-generating electric lamp includes a sealed lamp envelop having a concave depression therein, an incandescent filament mounted within the lamp envelope, a lamp base, and a replaceable, solid insert in the concave depression. The insert produces a scent when it is warmed by heat from the filament. Preferably, the insert is a polyamide impregnated with a scent and includes a portion that matches the shape of the depression in the lamp envelope. The depression for holding the insert is preferably located at the opposite end of the lamp from the base. When the lamp is used in a base-down orientation, the insert is held in the depression by gravity.

Abstract: A high intensity discharge lamp having a pair of discharge devices with one of them initially operative. The discharge devices are laterally adjacent with the higher temperature end of the operative discharge device proximate the lower temperature end of the inoperative discharge device for heating it during lamp operation. This facilitates starting of the inoperative discharge device after a momentary power interruption.

Abstract: A three way lamp having two gas discharge light tubes mounted on the same housing having three terminals arranged thereon as provided on a three-way incandescent lamp.

Abstract: A plug-in lamp assembly for use as a picture element in an information display screen includes a plurality of low-pressure arc discharge lamps for selectively generating multiple colors, a lamp plug for interconnection and mounting of the discharge lamps, and a lamp socket for plug-in attachment of the lamp plug. Each discharge lamp has electrical leads extending from a first end thereof and a light output region at a second end thereof. The lamp plug comprises a base having spaced-apart electrical connector pins and a cap attached to the base. The first ends of the discharge lamps extend through openings in the top wall of the cap into the lamp plug, and selected electrical leads are coupled to the electrical connector pins. The lamp plug and the lamp socket include openings for directing cooling air over the first ends of the discharge lamps.

Abstract: A plug-in lamp assembly for use as a picture element in large-screen information display systems. The lamp assembly includes red, green and blue discharge lamps for selectively generating different colors. Each discharge lamp has electrical leads extending from a first end and a light output region at a second end. The lamp assembly further includes a base having spaced-apart, plug-in electrical connectors, a cap covering the second ends of the lamps and a sleeve around the discharge lamps and interconnecting the cap and the base. The base provides mechanical support for the discharge lamps and permits easy replacement of the lamp assembly. The sleeve blocks light emitted from the sides of the discharge lamps. The cap includes a diffuser and a filter for altering the output spectrum of one or more of the discharge lamps.

Abstract: A double filamented lamp with one filament being a back up for the other filament may be formed with two internal capsules enclosed in a single exterior sheath. Each filament is securely positioned away from, and protected from the activity of the other filament. By securely coupling one capsule to the sheath, and the second capsule to the lamp base, both capsules are accurately positioned, and do not vibrate in the exterior sheath.

Abstract: A dual arc tube high pressure discharge lamp with a support frame connected to an electrical connector comprising a U-shaped piece of wire the axes of the legs of which are offset from the base so that the plane passing through the axes of the legs does not pass through the middle of the base of the wire.

Abstract: A three way lamp having two gas discharge light tubes mounted on the same housing in a light-transmitting bulb.

Abstract: A large-size display unit in which dark lines between individual display elements of which the overall unit is composed are eliminated and connections to the display elements are simplified. The inventive display unit includes a plurality of display element boards arranged in a matrix, each board having a plurality of the display elements mounted thereon. Each display element board has end portions bent backwardly in the vertical and horizontal directions of the board. Signal connectors are mounted on the backwardly bent end portions.

Abstract: A tubular incandescent lamp for use in heating applications where multiple levels of infrared energy are available from one source while providing for compactness in size and ease in manufacturing. The primary use for such a lamp is in the fusing system of a photocopy machine where speed in attaining the desired operating temperature greatly determines the machine's rating. In one embodiment of the lamp, quartz envelope is provided with dual chambers extending longitudinally therethrough. A filament extends longitudinally through each of the chambers and is hermetically sealed within press-sealed ends at the opposed ends of the lamp. The filaments are capable of being selectively or simultaneously activated.

Abstract: A tubular gaseous discharge lamp such as an ultraviolet or fluorescent lamp is provided which includes a hollow cylinder which is connected to a pair of end caps on each of which there is mounted an electrode. The first electrode is connected to an insulated or Teflon coated wire which is disposed along the outside surface of the cylinder and passes through the end cap which supports the second electrode. The second electrode is connected to a second insulated or Teflon coated wire which projects from the second end cap. The wires facilitate connection of the ultraviolet lamp to a source of electrical power which is located at one end of the lamp.In an alternative embodiment of the invention two or more ultraviolet lamps are inserted into a hollow quartz tube, thereby providing an ultraviolet light source of extended length, or two or more fluorescent lamps may be used in single end application.

Abstract: A high pressure discharge lamp with a multi-bent wire frame which provides symmetrical orientation and improved structural support for a pair of discharge devices which are supported at their tops by an element which allows for differential expansion of the devices.

Abstract: A series-parallel lighting string having a cord with three wires separated by insulation and a series of cutouts severing the center wire of the cord, and lampholders positioned at each of the cutouts to hold a miniature push-in type light bulb. Each of the lampholders has a pair of contact plates between which a bulb is inserted with its lead wires in contact with the plates. The contact plates are positioned within a husk of the lampholder, and the husk has a snap-fitting cap hingedly attached thereto to define a wireway. The wireway is formed by corresponding semicircular grooves in each of the husk and the cap sized to receive the cord. Each of the contact plates has an insulation-piercing contact finger positioned to engage one of the end portions of the severed wire to each side of the cutout in the cord. The first and last lampholders in each series set has a second cord-piercing contact finger which contacts one or the other of the outer non-severed wires.

Abstract: In order to prolong the life of incandescent electric light bulbs, an arrangement is provided which consists of two bulbs, one of which constitutes a resistance for the second one.The lamp holder which accommodates the two bulbs comprises two sockets into each of which the base of one bulb is inserted, the two sockets being interconnected in series.

Abstract: An incandescent electric light bulb is provided with two fittings, typically two opposed screw-threaded bases, each with two terminals. The bulb is provided with internal parallel conductors between corresponding terminals of the two fittings. One or more incandescent filaments is or are connected between the conductors within the bulb. Accordingly several of the bulbs may be connected fitting-to-fitting, electrically in parallel, with or without inter-bulb connectors, with no need for externally wired sockets between adjoining bulbs. Various fittings, connectors and supports are described.

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: A plasma image display device with a gas discharge space and an electron acceleration space in which the gas discharge space is divided off from the electron acceleration space by a light transparent, high vacuum tight partition having a side facing a fluorescent screen which is provided with a photo cathode as an electron source to provide, due to high accelerating voltages, a high image amplification and good image definition.

Abstract: An electric lamp construction is described having a pair of conductive inlead wires of dispersion-strengthened copper alloy to serve as the sole means of physical support for a resistive incandescent filament electrically connected thereto, wherein said inlead wires have a surface metallurgical structure of fibrous dispersion-strengthened copper alloy. Said metallurgical surface of the inlead wires can further serve to enhance bonding of other materials thereto including metals such as nickel and aluminum as well as nonmetallic gettering materials such as phosphorous compounds.

Abstract: A high voltage movie light including a plastic holder, a pair of spaced-apart incandescent lamp units positioned within the holder, and means for electrically connecting the lamp units to an external power source. Each lamp unit comprises a formed glass reflector and a tungsten-halogen lamp located within the reflector and having a planar, dual filament structure therein. The lamp units are positioned within the holder such that the planes occupied by the respective dual filament structures intersect at a predetermined angle, e.g. 90 to 110 degrees, in order that the light output from each unit will be centered on a respective diagonal of the rectangular subject field being illuminated by the movie light. Each unit produces a bimodal intensity distribution, thus further assuring increased illumination levels on the subject field. An incandescent lamp unit suitable for use in the movie light is also disclosed.

Abstract: A movie light including a plastic holder, a pair of spaced-apart incandescent lamp units positioned within the holder, and means for electrically connecting the lamp units to an external power source. Each lamp unit comprises a formed glass reflector which has an internal reflective surface containing three separate diffusing regions, the most diffusing of which is oriented nearest and about the reflector's optical axis. Each unit also includes a low voltage tungsten-halogen lamp located within the reflector and having a planar single filament therein. An incandescent lamp unit suitable for use in the movie light and a reflector for use therewith are also disclosed.

Abstract: A multi-panel electroluminescent panel assembly is provided in which an area extending over several panels may be uniformly illuminated by light produced by the panels, and over which non-illuminated areas, stripes or the like resulting from electrode contacts are eliminated. Each panel is constructed such that the light produced per unit area is substantially uniform throughout the panel, including that from an area immediately adjacent at least one edge thereof. The panels are assembled in an overlapping arrangement such that non-illuminating areas of one panel are covered by illuminating areas of at least one other panel. The assembly of panels provides a large area source of uniform illumination suitable for back-lighting graphic indicia, and may be desirably included as signboards on the sides of motor vehicles such as transport trucks, buses, etc.

Abstract: The present invention discloses a light source device to be utilized mainly for projection purposes in which a plurality of light-emitting sections and a plurality of non-light-emitting sections are alternately connected. Each light emitting section consisting of a halogen lamp comprising a lamp tube made of quartz and enclosing a coiled filament as a single light emitting element and sealing therein inert gas and halogen while the non-light-emitting section consisting of a supporting member for supporting the halogen lamp, the halogen lamps being electrically interconnected in series.

Abstract: The display panel comprises a gas-filled envelope containing an array of line-like glow cathodes. Circuit means is coupled to the panel to scan the array of cathodes and to energize a number of cathodes determined by the magnitude of an input analog signal. The cathodes which are energized at any instant, display a bar of light. A light source is provided behind the panel to transmit light through the panel and between the line-like cathodes so that a viewer sees both a bar of cathode glow light, the length of which is determined by the analog signal, and a bar of light generated by the light source, the length of which is determined by the number of cathodes which are not energized and do not generate cathode glow.