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 low-wattage mercury vapor discharge lamp is provided for use with existing 110V high frequency electronic ballasts. The lamp has a discharge sustaining fill of mercury and an inert gas mixture of krypton and argon that does not require a starting aid. The phosphor layer has a coating weight of 2.0-3.9 mg/cm2.

Abstract: A fluorescent tube is constituted by a fluorescent tubular body having a transparent glass tube coated with a fluorescent layer containing a fluorescent material on its inner surface, and an ultraviolet LED substrate inserted in the fluorescent tubular body and having an equal length to the fluorescent tubular body. The ultraviolet LED substrate has twenty-four ultraviolet light emitting devices each having a long life, and the left end of the ultraviolet LED substrate is connected with lead wires through which electric power is supplied. Accordingly, when ultraviolet rays are emitted from the twenty-four ultraviolet light emitting devices, the fluorescent layer emits light in its own fluorescent color, the fluorescent tubular body as a whole emits light and the surroundings are illuminated with the light. Hence, the fluorescent tube can be used for illumination. Alternatively, the fluorescent tubular body may be formed by a transparent silicone rubber which can be bent into any desired shape.

Abstract: A flat luminescent lamp and a method for manufacturing the same are disclosed, in which light weight and high luminance can be obtained and discharge efficiency can be maximized. The flat luminescent lamp includes first and second substrates each having a plurality of concave and convex portions on an opposing surface, first and second electrodes alternately formed in the convex portions on the first substrate at constant intervals, a dielectric layer formed on the first substrate including the first and second electrodes, and first and second phosphor layers respectively formed on the dielectric layer and the second substrate.

Abstract: An electric lamp is provided having a luminescent layer on the lamp envelope that produces visible light when impinged by ultraviolet radiation generated within the lamp. An undercoat for the electric lamp increases the luminous efficacy of the lamp. The undercoat comprises a particulate non-fluorescent material derived from a sintered mixture of an aluminum oxide material and a getter material which reacts with contaminants present in the lamp.

Abstract: An array of complex shaped top fibers that each include an address electrode, barrier ribs to form a plasma channel and a phosphor coating on the plasma channel create structure in a plasma display panel. The top fiber array is disposed on the plate facing the viewer and the light generated by the phosphors must penetrate through the top fibers to the viewer. The top fibers can be composed of a colored material associated with the color phosphor layer to add color purity and contrast to the plasma panel. The sustain electrodes are placed on the plate facing away from the viewer and can be included in an array of fibers containing wire sustain electrodes. The sustain electrode surface does not need to be transmissive since the generated light is transmitted through the top fiber array. Therefore, the sustain electrodes can be composed of a reflective metal and cover the majority of the surface of the bottom plate.

Abstract: A gas discharge lamp has two electrodes and a gastight, transparent lamp envelope including a filling gas containing mercury and a phosphor coating. The phosphor coating contains a perylene pigment.

Abstract: A plasma picture screen, in particular an AC plasma picture screen with a coplanar arrangement having an enhanced luminance. A UV light emitting layer (8) is provided on the front plate (1), which comprises a glass plate (3) on which a dielectric layer (4) and a protective layer (5) are provided, or on the carrier plate (2) with the phosphor (10). The layer (8) comprises a VUV phosphor which converts the VUV light of the plasma discharge into UV light with a wavelength between 200 and 350 nm and emits this in the direction of the phosphor layer (10).

Abstract: The present invention comprises a compact electrodeless fluorescent lamp that includes a transparent envelope containing a fill of inert gas along with a vaporizable metal such as mercury. An induction coil is operated by a driver circuit, and is positioned inside of a reentrant cavity in the envelope with an adjacent permeable magnetic field manipulation structure having a shunting surface ending at a shunting surface periphery. A thermally and electrically conductive primary cooling structure is positioned adjacent the magnetic field manipulation structure to extend within the shunting surface periphery while being separated from the induction coil thereby. A further component cooling structure is provided to at least partially enclose the driver circuit connected to the induction coil.

Abstract: A discharge tube comprises a visible light region phosphor and a photocatalysis region phosphor that emits near-ultraviolet light. The discharge tube radiates visible light and near infrared light so as to promote plant growth by way of photocatalysis.

Abstract: An improved light-emitting panel having a plurality of micro-components at least partially disposed in a socket and sandwiched between two substrates is disclosed. Each micro-component contains a gas or gas-mixture capable of ionization when a sufficiently large voltage is supplied across the micro-component via at least two electrodes.

Abstract: An AC plasma display panel in which variation in display luminance and occurrence of error display are suppressed is provided. A first insulating substrate and a second insulating substrate are positioned opposing each other. On the first insulating substrate, a scanning/sustain-electrode group including a plurality of sets of a scanning electrode and a sustain electrode that are arranged in parallel to each other and a dielectric layer covering the scanning/sustain-electrode group are provided. A plurality of data electrodes that are orthogonal to and opposing the scanning electrode and the sustain electrode are provided on the second insulating substrate. Discharges between the scanning electrode and the sustain electrode allow phosphors to emit light. Each of the plurality of sets includes, as a unit, the scanning electrode and the sustain electrodes positioned on both sides of the scanning electrode, and the plurality of sets are separated from one another.

Abstract: A plasma display panel is provided which is capable of suppressing the degradation of the fluorescent material layer by discharge and which ensures a long service life.

Abstract: Electric discharge is caused in a concave portion (12) to generate ultraviolet light. The ultraviolet light is incident upon a fluorescent layer (14), which emits visible light. The emitted visible light is transmitted through transparent electrodes (24a, 24b) and radiated from a surface. Because spherical materials (16) are arranged on the inner surface of the concave portion (12), the surface area of the fluorescent layer (14) is enlarged, more ultraviolet light enters the fluorescent layer (14), and the conversion efficiency from ultraviolet to visible light is enhanced.

Abstract: A gas discharge tube having a phosphor layer formed within a tubular vessel defining a discharge space. The gas discharge tube includes a supporting member independent of the tubular vessel. The phosphor layer is formed on the supporting member. The supporting member is inserted within the discharge space.

Abstract: A process for recovering rare-earth phosphors from an interior of a lamp envelope (12). The interior of the envelope defines a wall and a base layer (14) is adhered to the wall. A coating layer (16) having the rare-earth phosphors is adhered to the base layer. The process includes flowing a gas through the envelope at a rate sufficient to remove particles of the coating layer but not the base layer. The process also includes collecting the particles of the coating layer, the particles containing the rare-earth phosphors. Lamp envelopes (12) having a base layer (14) and a phosphor coating layer (16) suitable for use with the recycling method are also discussed.

Abstract: A plasma display device includes a first substrate, an address electrode formed on an upper surface of the fist substrate, a first dielectric layer formed on the upper surface of the first substrate and embedding the address electrode, a second substrate which is transparent and forms a discharge space by being coupled to the first substrate, a plurality of maintaining electrodes formed on a lower surface of the second substrate to form a predetermined angle with the address electrode, each of the maintaining electrodes including first and second electrodes, a second dielectric layer formed on the second substrate where the maintaining electrodes are formed and embedding the maintaining electrodes, at least a portion where an electrical field is concentrated formed between the first and second electrodes constituting the maintaining electrodes, and a partition installed between the first and second substrates for sectioning the discharge space.

Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at each end of the envelope. The electrodes transfer electric power to generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A phosphor layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The phosphor layer is a mixture of three phosphors, namely, blue luminescing Blue Halophosphor (BH), red-luminescing Cerium Gadolinium Magnesium Borate (CBTM), and 3000K-luminescing Calcium Halophosphor, also referred to as Warm White (WW).

Abstract: A mercury vapor discharge fluorescent lamp is provided having a single composite phosphor-containing layer. The composite layer contains both a heterogeneous mixture of halophosphors, rare earth triphosphors and colloidal alumina particles. The coating weight and relative proportion of halophosphors to triphosphors are both tunable to obtain a lamp having specific performance characteristics suitable to a particular application. The colloidal alumina particles contained in the composite layer eliminate the need for a separately applied alumina layer as is conventional in the prior art.

Abstract: A display device has a light source and a display part including a light guide, a movable element, and selection means to locally and selectively bring the movable element into contact with the light guide to couple light out of the light guide. The light source is a UV radiation source. The movable element includes means for scattering UV light. The display device includes phosphor elements for emitting visible light at different colors when excited by UV radiation. The phosphor elements include phosphor particles in an embedding material.

Abstract: A method of treating a lamp tube having a first end and a second end comprising introducing a first quantity of a luminescent substance into the first end of the lamp tube and introducing a second quantity of a luminescent substance into the second end of the lamp tube is provided. An illumination source comprising a linear tube having a first end and a second end and an inner surface having a luminescent substance distributed thereon, a longitudinal distribution of the luminescent substance having a minimum at a first point of the inner surface and a luminescent substance density greater than the minimum at each of a second and third point of the inner surface, the first point longitudinally located between the second and third points, is provided.

Abstract: A high color-rendering fluorescent lamp comprising a phosphor layer wherein the phosphors are selected such that the general color rendering index, Ra is greater than 96 or 97 or 98 at color temperatures of 2700 K to 6600 K, and all the special color rendering indices are greater than 90 at color temperatures of 2900 K to 6500 K.

Abstract: A plasma display panel (PDP) has a front and a back substrate mounted together, with a gap between them. Barrier ribs are positioned within this space of this gap, and they define a series of discharge space groups. Each discharge space group has a first, second and third discharge space for red, green and blue emitting phosphors. Within these discharge spaces are traverse ribs. The lengths of these traverse ribs are adjusted to change the relative proportions of phosphor surface areas, and thus adjust the color temperature of the PDP.

Abstract: A bandpass filter containing specific red dyes alone or in combination with other dyes selectively transmits predetermined primary color wavelengths as well as selectively absorbs wavelengths other than the predetermined primary color wavelength. The filter is particularly useful for enhancing the contrast of color plasma displays by absorbing visible light emitted at 590 nm from the display.

Abstract: In a preferred embodiment of the discharge lamp an additional transparent body (21) is disposed along the optical axis (10) in a second end (16) of the bulb (2). In the area of the second end (16) outside of the lamp bulb (2) an additional radiation source (configured as a thermal radiator (22) is provided, whose radiation passes through the transparent body (21) into the bulb (2), both the radiation produced by the plasma and the radiation of the thermal radiator being carried out through the first transparent body (20) configured as a condenser lens.

Abstract: A gas discharge lamp for dielectrically impeded discharges, which gas discharge lamp is provided with a discharge vessel filled with a gas filling, which discharge vessel comprises at least a wall of a dielectric material and at least a wall having a surface which is at least partly transparent to visible radiation and coated with a phosphor layer, which phosphor layer comprises a phosphor preparation of a phosphor powder and a coating, which coating comprises a compound selected from the group formed by the fluorides and orthophosphates of the elements magnesium, calcium, barium, aluminum, scandium, yttrium and lanthanum, and provided with an electrode structure for a dielectrically impeded discharge, and with means for igniting and maintaining the dielectrically impeded discharge.

Abstract: In a plasma display panel, red, green, and blue pixels have the same voltage range for write discharges. The red, the green, and the blue pixels have first, second, and third data electrodes, respectively, covered with an insulating film. A red fluorescent substance layer is formed on the insulating film over the first data electrode. A green fluorescent substance layer is formed on the insulating film over the second data electrode. A blue fluorescent substance layer is formed on the insulating film over the third data electrode. The green fluorescent substance is smaller than both of the red and the blue fluorescent substance layers in thickness.

Abstract: An arrangement of spacer posts in a flat panel display. The spacer posts maintain a fixed separation between a back plate and a face plate. The back plate includes one or more electron emission sources. Phosphors or other electro-optic material are distributed among a plurality of pixel areas on the face plate. The pixel areas are arranged in distinct groups, where each group contains N adjacent pixel areas. Each pixel area includes an area free of phosphor material. Within each group of N pixel areas, the respective phosphor-free areas of the N pixel areas are contiguous so as to form a combined phosphor-free area equal to or greater than the transverse cross-section of one end of a spacer. Consequently, a spacer can be attached to the face plate at each combined phosphor-free area without disrupting the uniformity of the distribution of phosphors on the face plate.

Abstract: A compact energy lamp having high luminous flux, long life and a very similar color temperature of between 2300° K and 6500° K which includes a vacuum-type discharge vessel filled with mercury and a noble gas. The inside of the discharge vessel is provided with a luminescent layer and is provided with means for maintaining discharge. The luminescent layer includes two phosphors. The first phosphor is a green-emitting gadolinium magnesium borate silicate, activated with cerium and terbium, and the second phosphor is yttrium oxide: Eu3+, which emits in the red spectral region.

Abstract: A compact fluorescent lamp for illumination which is constructed by planar glass plates formed of a low cost sodium glass material and assembled together by a sealing glass adhesive, or a glass frit, such that a low cost compact fluorescent lamp that has maximum electrical discharge path can be fabricated in mass production. The compact flourescent lamp has a chamber cavity that is divided into a plurality of sub-chambers by interior partitions each having an aperture therethrough for allowing a discharge to go through into a neighboring sub-chamber. The placement of the aperture is such that a maximum discharge path, or a maximum arc path can be achieved while maintaining the total volume of the compact lamp at a minimum. The use of flat glass plates made of a low cost sodium glass material enables a low cost manufacturing of the present invention novel lamp.

Abstract: Strontium and strontium calcium aluminates and lanthanum and lanthanum magnesium borates activated with Pr3+ and Mn2+ exhibit characteristics of quantum-splitting phosphors. Improved quantum efficiency may be obtained by further doping with Gd3+. Refined rules for designing quantum-splitting phosphors include the requirement of incorporation of Gd3+ and Mn2+ in the host lattice for facilitation of energy migration.

Abstract: The description relates to gas-discharge lamps having electrode structures for dielectrically inhibited discharges, in which the electrodes are divided into separately operable groups for independently switchable operation.

Abstract: A three-dimensional display apparatus capable of producing an image in three dimensions without the aid of optical illusions or perspective trickery. The display apparatus is comprised of a plurality of pixels which are, in turn, comprised of a plurality of cells. The cells illuminate in one of the three primary colors red, green and blue such that a combination of a red, green and blue cell into a pixel, is capable of producing any color in the visible spectrum. The cells are oriented in the pixel such that light from the pixel is perceivable in six directions, thereby creating a three-dimensional light source. By combining a plurality of these three-dimensional light sources, i.e. a plurality of pixels in a three-dimensional matrix, a three-dimensional image is capable of being displayed.

Abstract: Improved lamp of the type comprising the crystal bulb of an incandescent lamp or the crystal tube of a fluorescent lamp or preferably of the type comprised of a tube-shaped fluorescent lamp, characterized in that the structure of the tube itself forms a support for a luminescent product arranged as a coating which captures the light proceeding from a source and generated by the lamp itself thereby enabling it to emit its own light after the excitation has stopped thereby providing a self-contained lighting element.

Abstract: A metal M is chosen from the group formed by Y, Al and La, and a watery solution of a complex of M and an organic chelating agent is added to a suspension of luminescent material, which causes a layer of M2O3 to be deposited on the luminescent material, which is then separated, dried, and fired.

Abstract: Willemite (Zn2SiO4:Mn) is doped with one or more ions selected from the group formed by Gd3+, Eu2+, Co2+, Ce3+, Pr3+, Nd3+, Sm3+, Tb3+, Dy3+, Ho3+, Er3+, Tm3+ and Yb3+. This results in a increase in absorption and quantum yield and a decrease of the decay time.

Abstract: A discharge lamp which radiates visible light having the following lights combined: light having an emission peak in 400 to 490 nm wavelength range in a blue spectral region; light having an emission peak in a 500 to 550 nm wavelength range in a green spectral region; and light having an emission peak in 600 to 670 nm wavelength range in a red spectral region. The color point of the radiated light lies within a region common to the following regions: a region bounded by an ellipse with a color point (u, v)=(0.224, 0.330) as a center thereof, a major axis of 0.056, a minor axis of 0.024, and an angle from the u axis of 20 degrees in the CIE 1960 UCS diagram; a region bounded by an ellipse with a color point (u, v)=(0.224, 0.330) as a center thereof, a major axis of 0.078, a minor axis of 0.014, and an angle from the u axis of 30 degrees in the CIE 1960 UCS diagram; a region bounded by an ellipse with a color point (u, v)=(0.235, 0.335) as a center thereof, a major axis of 0.

Abstract: A fluorescent lamp of the present invention includes: a first electrode section having a first filament; a second electrode section having a second filament; a fluorescent tube in which a fluorescent substance Is applied on an inner wall of the fluorescent tube; a first structure of a nonconductor provided in the fluorescent tube: and a second structure of a conductor provided in the fluorescent tube. The first structure and the second structure are provided between the first filament and the second filament.

Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at each end of the envelope. The electrodes transfer electric power to generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A phosphor layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The phosphor layer is a mixture of three phosphors, namely, Barium Magnesium Aluminate, Cerium Gadolinium Magnesium Borate, and Calcium Halophosphor.

Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at each end of the envelope. The electrodes transfer electric power to generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A phosphor layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The phosphor layer is a mixture of three phosphors, namely, blue luminescing Blue Halophosphor (BH), red-luminescing Cerium Gadolinium Magnesium Borate (CBTM), and 3000K-luminescing Calcium Halophosphor, also referred to as Warm White (WW).

Abstract: This invention relates to a kind of illuminator particularly to a cold-end device of a low-pressure mercury vapor (LPMV) discharge lamp. The external glass tube of the invention is connected onto the lamp tube wall, which is opened up to the inner room of the lamp tube, and isolated from the outside. Since the cold-end device can be adjusted by the length of the external glass tube fore-mentioned and the sealing end position of the glass tube, the optimal cold-end temperature can be achieved and thus a larger light flux can be output from the energy conservation lamp in working.

Abstract: Described is a plasma switched organic photoluminescent display including lower and upper plates. The lower plate includes a transparent rear substrate, a plurality of address electrodes arranged in a first direction on the transparent rear substrate like stripes in parallel each other, a white back dielectric layer on the transparent rear substrate including the address electrodes, a plurality of barrier ribs arranged in parallel each other on the white back dielectric layer between the address electrodes in the first direction, respectively, a plurality of organic photoluminescent layers on the exposed white back dielectric layer between the barrier ribs, respectively, and a plurality of photoluminescent-layer-protecting layers on the organic photoluminescent layers, respectively.

Abstract: A phosphor (fluorescent material) making up of a fluorescent layer of a plasma display panel is made of mono-crystal particles, which each have a particle diameter of 10-200 nm.

Abstract: A low-pressure mercury vapor discharge lamp comprises a discharge vessel (10) having a tubular portion (11). The discharge vessel (10) encloses a discharge space (13) provided with a filling of mercury and a rare gas in a gastight manner. The tubular portion (13) of the discharge vessel (10) is provided with a metal oxide layer (15) and a luminescent layer (17) on a surface (14) facing the discharge space (13). The discharge lamp comprises means for maintaining an electric discharge in the discharge vessel (20b). The discharge lamp is characterized in that the luminescent layer (17) comprises an alkali metal oxide. This alkali metal oxide is preferably sodium oxide and/or potassium oxide, and the concentration of the alkali metal oxide is 0.002≦Na2O≦0.1% by weight and/or 0.002≦K2O ≦0.1% by weight. The tubular portion (11) of the discharge vessel (10) preferably has a further metal oxide layer which acts as an alkali metal-repellent layer.

Abstract: A flat luminescent lamp includes first and second substrates attached to each other at a plurality of adhesive portions, a plurality of discharge spaces in regions other than the plurality of adhesive portions between the first and second substrates, first and second electrodes arranged in the discharge spaces to be separated from each other, first and second phosphor layers formed in the discharge spaces, and first and second frames sealing the first and second substrates.

Abstract: An AC type plasma display panel including a front substrate, strip-shaped common and scan electrodes on a bottom surface of the front substrate, bus electrodes along one edge of a side of respective the common and scan electrodes, a first dielectric layer on the bottom surface of the front substrate to cover the electrodes, a protective layer on a bottom surface of the first dielectric layer, a rear substrate opposite to and facing the front substrate, address electrodes on a top surface of the rear substrate to be perpendicular with the common and scan electrodes, a second dielectric layer on the rear substrate to cover the address electrodes, partitions comprising strip-shaped main partitions formed on the second dielectric layer, and auxiliary partitions connected to the main partitions to partition a discharge space, and R, G and B phosphor layers formed on the inner walls of the partitions.

Abstract: A plasma display includes a display panel and a driving circuit for driving the display panel. A space for at least one color, of spaces between barrier ribs for defining discharge spaces for red, green and blue colors of the display panel is different from the spaces for other colors.

Abstract: The invention discloses new luminescent materials for use as UV-A phosphors in suntanning lamps. The luminescent materials are of general formula Ca3-xB2P2O11+0.5x:xCe3+ and Ca2.5-xB5.5P2O15.75+0.5x:xCe3+.

Abstract: A Y(P,V)O4:Eu3+ red emitting phosphor is doped with at least one of a trivalent rare earth ion excluding Eu and a divalent metal ion to improve the lumen maintenance of the phosphor. The preferred material is the Y(P,V)O4:Eu3+ phosphor doped with trivalent Tb3+ ions and divalent Mg2+ ions.

Abstract: A color fluorescent lamp, having at least a closed cavity filled with an inert gas, at least two fluorescent layers coated on an interior wall of the cavity, and a set of electrodes. The fluorescent layers have fluorescent material to emit different color lights. The set of electrodes is located inside of the cavity. A high voltage is applied to the set of electrodes, so that the noble gas electrons are induced inside of the cavity, which then emits an ultra-violet light. Being excited by the ultra-violet light, a visible light is emitted from the fluorescent layers.