Abstract: A dielectric barrier discharge lamp (1) with a discharge vessel, which has an outer tube (2), which surrounds a discharge space (4) filled with a discharge medium, an outer electrode (6), which is arranged on the outer side of the outer tube (2), an elongate inner electrode (7), which is arranged axially within the outer tube (2), at least one retaining disk (8) with an axial bore, through which the elongate inner electrode (7) runs, the retaining disk (8) extending substantially from the inner electrode (7) up to the inner side of the outer tube (2), as a result of which the inner electrode (7) is centered at least indirectly within the discharge vessel. The retaining disk (8) is supported on both sides loosely in the direction of the longitudinal axis by means of a supporting means (9a-9c) on the left-hand side and a supporting means (10a-10c) on the right-hand side.

Abstract: A backlight assembly includes a receiving container having a bottom and a side member to provide a receiving space, a flat-type fluorescent lamp received into the receiving container to emit a light, and a supporting member having a buffer disposed between the receiving container and the flat-type fluorescent lamp to buff an impact applied to the flat-type fluorescent lamp while supporting the flat-type fluorescent lamp. The buffer has protrusions protruding from a face of the supporting member. Thus, the backlight assembly may enhance impact resistance of the backlight assembly and prevent damage of the flat-type fluorescent lamp.

Abstract: Broadband output high power pulsed flash lamps are useful in many applications, and when specifically optimized, can become an excellent source of ultraviolet (UV) light, which is particularly useful for photo-chemically-induced materials processing applications. Multiple factors involved with the production of high-energy light pulses can in certain cases adversely affect the ultraviolet lamp operation, thereby resulting in the development of micro cracks in lamp envelopes and subsequent limitation in lamp lifetime. Similar factors can be responsible for an increased absorption of UV radiation by lamp components and degradation of lamp efficiency. This invention describes new pulsed flash lamp designs that enable a new generation of high power and performance as required by, for example, many large-scale photo-processing applications.

Abstract: An image forming device includes a rear plate having a conductor set to a low voltage, an electron emitter disposed on the rear plate, the electron emitter including the conductor, and a face plate having an electrode set to a high voltage and facing the rear plate. An image forming source is provided on the face plate and includes the electrode. A spacer is electrically connected to the conductor and the electrode and includes an insulating substrate having a first end surface facing the rear plate, a second end surface facing the electrode, and side surfaces connecting the first end surface and the second end surface. A first high-resistance film covers the side surfaces of the insulating substrate, and a second high-resistance film covers at least one of the first end surface and the second end surface of the insulating substrate and has a sheet resistance greater than or equal to a sheet resistance of the first high-resistance film.

Abstract: A planar photoluminescent lamp includes a plurality of glass spacer beads affixed to a first glass plate, and a second glass plate in contact with the glass spacer beads. The glass plates are hermetically sealed to form a chamber, which is filled with a selected gas. Transparent electrodes are placed on the exterior of the first and second glass plates, over which electrically insulating layers are extended. First and second semi-transparent decorative layers are laid over the insulating layers, out of which light is transmitted. One or more transparent insulating layers extend over transparent electrodes placed on the exterior surface of the first and second glass plates.

Abstract: The reliability of the airtight sealed section is improved by providing a metallic or ceramic insertion member at a portion positioned between an electricity introducing member and a narrow tube in the airtight sealed section. The difference between the inner diameter of the narrow tube and the outer diameter of the insertion member is made 0.02 to 0.6 mm. The electricity introducing member is constructed by a halogen-resistant first member and a second member whose coefficient of linear expansion is similar to that of the narrow tube, and the junction of the first member and second member is covered with a halogen-resistant glass sealant. The difference between the insertion length of the second member into the narrow tube and the flow-in length of the glass sealant into the narrow tube is made 1 mm or more.

Abstract: There is provided a vacuum envelope having at least a first substrate, a second substrate opposed to the first substrate with a predetermined distance thereto, and plural spacers positioned between the first and second substrates A ratio &eegr; is defined by S/A, in which A is the internal cross-sectional area of the vacuum envelope in a cross-section parallel to a plane of one substrate opposed to the other substrate and S is the total cross sectional area of the plural spacers on such cross section, and satisfies a relation 0.78%≦&eegr;≦7.8%.

Abstract: The present invention relates to a flat display screen formed of two parallel plates, defining a space between electrodes, at least a first screen plate including, outside active areas, pads protruding towards a second plate and of a thickness clearly lower than the thickness of the space between electrodes, the pads being distributed by groups of at least three pads to form reception housings for balls of definition of the space between electrodes.

Abstract: The present invention provides image display panels, spacer units for the same and methods for making and using the same. The spacer units include an assembly having at least one layer of generally parallel fibers which form passageways which permit the passage of energy therethrough between the emitter and the display of an image display panel. A sealing frame has a support which is positioned about and engages the periphery or side of the spacer, the emitter and the display. The sealing frame has a sealing material for providing an essentially sealed region between the spacer, emitter and display. Methods of making and using such spacer units in image display panels are also included in the present invention.

Abstract: A plasma display panel comprising mutually opposing substrates and barrier ribs formed between adjacent pixels of a display between the substrates, wherein the barrier ribs are made of a fired product of a glass ceramic composition consisting essentially of a glass powder of P.sub.2 O.sub.5 type glass and a low expansion ceramic powder.

Abstract: A method for making gaseous discharge lamp cathodes comprises, in order to perfectly center the cathode with respect to the tube glass envelope, the steps of: (a) narrowing the end portion of the metal cathode near the edge thereof, (b) fully inserting, about the narrowed zone, a circular crown shaped mica small collar and (c) upsetting the edge so as to lock the mica collar in place.

Abstract: A proximity type image intensifier having an evacuated electrically conductive tube envelope is described. The image intensifier tube includes improved structure for supporting components within the tube envelope. The support structure includes a support ring having a first inwardly extending edge portion which defines a support surface for supporting the component, and a second inwardly extending edge portion which defines a compression surface and component access aperture. The retaining ring includes a planar inner surface and an outer edge surface. The inner surface contacts the component supported in the support ring. The retaining ring is allowed to expand whereupon the outer edge surface engages the support ring compression surface. Radial expansion of the retaining ring creates an axial compression force between the retaining ring inner surface and the support surface about the circumference of the component being supported.

Abstract: In an X-ray generator device a target member emitting X-rays by electron bombardment is arranged in a rod-shaped tubular probe and is provided with a conically tapering front part facing a comparatively narrow aperture in a controlling electron beam diaphragm for the purpose of forming a substantially punctiform radiation source. The position of the target member is adjusted by securing the rod-shaped target member at a part of its length reckoned from its opposite, rearmost end in a central bore of an oblong cylindrical target carrier positioned coaxially in the probe, said target carrier being only at its foremost end connected with the wall of the probe, thereby allowing fine adjustment of the target member with respect to said aperture by displacement of said opposite end of the target carrier in a radial plane in the probe, e.g. by means of wedge means formed as adjusting screws in the annular channel between the target carrier and the inner wall of the probe.

Abstract: A cathode ray tube includes improved means for supporting scan expansion mesh electrode means, the supporting means comprising knitted metal mesh means in the form of metal braid secured to the mesh electrode means.

Abstract: This disclosure depicts a color cathode ray tube of the shadow mask type, and especially depicts suspension systems for detachably supporting a rectangular, non-self-rigid, torsionally flexible shadow mask on the envelope of a color cathode ray tube. Each suspension system illustrated includes four suspension devices, one at each corner of a faceplate portion of the envelope on a diagonal thereof, for mechanically coupling the shadow mask to the envelope. Each device comprises envelope-mounted means and mask-mounted means for retentively but detachably engaging the envelope-mounted means to cause the mask to assume a fixed position in space relative to the tube of the faceplate. In the preferred embodiment illustrated, the envelope-mounted means and the mask-mounted means mate with a snap-in, self-guiding, self-locating engagement such that the mask may be quickly and precisely mounted on the envelope by a push-click insertion operation.