Abstract: A light source includes a base, a light-transmissive envelope coupled to the base, a composition disposed within the light-transmissive envelope, and a gas phase contained by the envelope for suppressing vaporization of the composition at operating temperatures greater than about 2000 Kelvin. The composition includes a first region and a second region and operable to suppress or reflect photons having a wavelength greater than about 700 nm and to emit or transmit photons having a wavelength between about 400 nm and about 700 nm.

Abstract: An illumination lamp is provided. The illumination lamp includes a hollow pillar tube being light-transmissive, at least one inner light tube accommodated in the hollow pillar tube, and an electrode set disposed at one distal end of the hollow pillar tube and electrically connected to the inner light tube in the hollow pillar tube.

Abstract: An electric lamp is described, which has a quartz glass lamp vessel (10) accommodating an electric element (3, 4). The lamp vessel locally has a light-absorbing, non-reflective coating (11, 12). The coating mainly consists of iron, iron oxide, silicon, and silicon dioxide, the ratio of the weight percentages of iron (compounds) and silicon (compounds) being in the range of 0.17<=iron (compounds)/silicon (compounds)<-12, and the ratio of the weight percentages of silicon and silicon dioxide being in the range of 0.5<=silicon/silicon dioxide<=50.

Abstract: A display device provided with a screen, comprising: an optical filter having a blind sheet that comprises a plurality of semitranslucent layers having translucence arranged side-by-side extending in a horizontal direction and having a predetermined thickness in a vertical direction, and a plurality of transparent layers which are disposed between the semitranslucent layers and which are of a higher translucency than that of the semitranslucent layers and of a greater thickness than the thickness of the semitranslucent layers; and an adhesive member for sticking the optical filter to the screen, wherein the ratio of the transmittance of a limit angle of the screen with respect to the transmittance of the optical filter at the center of the screen is at least 0.10 and not more than 0.50.

Abstract: Various embodiments provide an electric high-pressure lamp with a base at one end, with a wattage of at most 100 W and with a discharge vessel which is sealed in a vacuum-tight manner, said discharge vessel being surrounded by an inner bulb and furthermore by an outer bulb, a base with electrical terminals supporting the outer bulb on one side and the inner bulb on the other side, wherein an effective axial length of the inner bulb is defined as the length of said inner bulb without the ends, with the following geometrical relations with respect to the length being maintained: the volume VH of a hollow cylinder extending between the inner bulb and the outer bulb is given by 8 cm3?VH?15 cm3; the impact quality IG, defined as the product of the clear width between the inner bulb and the outer bulb and the square of the wall thickness of the outer bulb, in each case calculated in mm, is at least 8 mm3, with the result that the following applies: 8?IG.

Abstract: A low pressure fluorescent tanning lamp (10) includes an elongated, tubular glass envelope (12) including an arc generating and sustaining medium (14) and electrodes (16) therewithin and having a first section (18) and a second section (20). A phosphor coating (22) is provided on the interior of the first section (18) and only a portion (24) of the second section (20). The phosphor coating comprises materials emitting in the UVA and UVB areas of the electromagnetic spectrum and additionally in the visible area of the electromagnetic spectrum in the range above 600 nm. The second section (20) includes a clear window (26) and the phosphor comprises a mixture comprising about 91% BaSi2O5:Pb; about 6% MgSrAl10O17:Ce; and about 3% Y2O3:Eu.

Abstract: A cold cathode fluorescent lamp for a backlight of a liquid crystal display device includes a light-transmitting glass tube in which a rare gas and mercury are sealed, and a phosphor film which is formed on an inner peripheral surface of the glass tube. The phosphor film is formed such that a phosphor suspension is formed by mixing phosphors into a suspension produced by strongly stirring a mixed solvent made of butyl acetate and nitrocellulose and by re-stirring the mixture, and the phosphor suspension is applied to the inner peripheral surface of the glass tube by coating.

Abstract: The invention relates to a discharge vessel of a quartz glass for discharge lamps with a diffusion barrier inner layer of silicon oxide, which as a single layer is applied and/or is generated on the inner surface as well as to a method for generating and/or applying such a diffusion barrier inner layer and to the use of such a discharge vessel.

Abstract: A protective layer of a plasma display panel includes smoky magnesium oxide, the smoky magnesium oxide having single crystal magnesium oxide with a plurality of cavities therein.

Abstract: A discharge lamp that includes an arc tube made from silica glass, and a modified layer as a boron- or germanium-diffused layer formed in an inner surface of the arc tube.

Abstract: A field emission lamp generally includes a bulb having an open end, a lamp head disposed at the open end of the bulb, an anode, and a cathode. The anode includes an anode conductive layer formed on an inner surface of the bulb, a fluorescent layer deposited on the anode conductive layer, and an anode electrode electrically connected with the anode conductive layer and the lamp head. The cathode includes an electron emission element and a cathode electrode electrically connected with the electron emission element and the lamp head. The electron emission element has an electron emission layer. The electron emission layer includes getter powders therein to exhaust unwanted gas in the field emission lamp, thereby ensuring the field emission lamp with a high degree of vacuum during operation thereof. A method for making such field emission lamp is also provided.

Abstract: The invention relates to a metal halide lamp for a vehicle headlamp comprising a cylindrically-shaped discharge vessel (23) having a ceramic wall which encloses a discharge space comprising Xe and ionizable filling, and a cylindrically-shaped outer bulb (21) surrounding the discharge vessel (23). According to the invention a portion (25, 26) of the surface of the outer bulb (21) facing away from the discharge vessel (23) is shaped as a negative lens. Preferably, the portion (25, 26) encompasses a segment of the outer bulb (21) with a segment angle ? in the range between 30???60°. Preferably, the portion (25) forming the negative lens is shaped as a flat surface.

Abstract: A field emission lamp (2) includes a tubular-shaped housing (20), a first electrode (22), an electron emitting layer (24), a second electrode (26), and a fluorescent layer (28). The housing (20) has an inner surface. The first electrode (22) is centrally and longitudinally accommodated in the housing (20). The electron emitting layer (24) is disposed on the first electrode (22). The second electrode (26) is spaced apart from the first electrode (22) and includes a reflective layer (261). The reflective layer (261) is disposed on a portion of an inner surface of the housing (20). The fluorescent layer (28) is disposed on the reflective layer (261).

Abstract: An excimer lamp, including a discharge vessel made of silica glass and having a discharge space; a pair of electrodes disposed on the discharge vessel, wherein the discharge space is filled with xenon gas; and an ultraviolet reflection film made from ultraviolet scattering particles, including silica particles and alumina particles, formed on a surface of the discharge vessel exposed to the discharge space. A thickness Y of the ultraviolet reflection film satisfies the expression Y>4X+5, given that a mean particle diameter of the ultraviolet scattering particles making up the ultraviolet reflection film is X (?m).

Abstract: An electromagnetic wave shielding material 1 comprises a light-shielding electrical conductor layer 11 having, on its observer-side external surface, a blackening layer 12. The electrical conductor layer 11 comprises a mesh portion 2 that has a large number of openings adjoining one another and faces the center portion 5b of the image-luminescent part 5a of a display device 5, and a frame portion 3 that surrounds the mesh portion 2 and faces the outer edge portion 5c of the image-luminescent part 5a of the display device 5. When trimming the screen of a display D with a black-colored light-shielding layer, since the electromagnetic wave shielding material 1 is used, it is not necessary to perform9 an additional printing step or the like, so that the total number of steps and material cost are not increased. Moreover, such electromagnetic wave shielding material does not cause non-uniformity in light-shielding properties compared with a light-shielding layer formed by printing.

Abstract: A lamp comprising an arc envelope and a molybdenum-rhenium end structure coupled to the arc envelope.

Abstract: A cool light source includes a reflector having a band-reject reflective coating and an underlying absorptive coating. The cool light source also includes a window with a band-pass transmission function that is substantially complimentary to the band-reject reflective coating.

Abstract: The present invention relates to a light-transmitting substrate (1) which is at least provided with a light-absorbing coating (3). The light-absorbing coating comprises stabilized pigments which are incorporated in a sol-gel matrix. The light absorbing coating comprises silica particles having a size between 5 and 100 nanometers and alumina particles having a size between 5 and 50 nanometers. The total volume concentration of pigments, silica and alumina particles in the light-absorbing coating is between 20 and 65 percent. The volume concentration of silica particles is between 5 and 40 percent and the volume concentration of alumina particles between 1 and 15 percent.

Abstract: A discharge lamp includes an arc tube, a first protection film mainly made of a metal oxide and formed on an inner surface of the arc tube, and a second protection film mainly made of boron nitride or boron oxide and formed on the first protection film.

Abstract: A discharge lamp includes an arc tube and a boron oxide film formed on an inner surface of the arc tube.

Abstract: The invention relates to a high temperature material modified to exhibit enhanced IR emittance in the wavelength range where a black body operating at the same high temperature exhibits peak emittance, to a light-transmissive body comprising the high temperature material, to a high intensity lamp comprising the high temperature material, and to a method of preparing the same.

Abstract: Disclosed here is a flat display having a pair of glass substrates and a sealing member applied on the periphery of the glass substrates. The glass substrates are oppositely disposed to each other at intervals therebetween. The glass substrates contain silicon as a component, while the sealing member contains bismuth. A protection layer and an insulating layer as an intermediate layer, which has a silicon-content lower than the glass substrates, are formed on the interface between the glass substrates and the sealing member. The structure above reinforces bonding strength of the sealing section, providing a highly reliable flat display.

Abstract: A mercury-free gas discharge lamp suitable in particular for motor vehicles has an enhanced discharge arc diffuseness. The lamp according includes an inner vessel and/or outer bulb with a structured arrangement or pattern such that the discharge arc diffuseness of the lamp is increased, such as by 0.01 mm to 1.5 mm.

Abstract: An electrodeless plasma lamp and a method of generating light are described. The lamp may comprise a lamp body including a dielectric material. The bulb is positioned proximate the lamp body and contains a fill that forms a plasma when radio frequency (RF) power is coupled to the fill. The conductive element is located within the lamp body and configured to enhance coupling of the RF power to the fill. The lamp may include a feed coupled to the RF power source and configured to radiate power into the lamp body. The at least one conductive element is configured to enhance the coupling of radiated power from the feed to the fill. In an example, two spaced apart conductive elements may be located within the lamp body. The bulb may be an elongated bulb having opposed ends, each opposed end of the bulb being proximate a corresponding conductive element.

Abstract: A fluorescent lamp includes a light-transmissive glass envelope having an inner surface, means for providing an electric discharge to the interior of the glass envelope, a phosphor layer within the interior of the glass envelope and a discharge-sustaining fill gas and a mercury dose sealed inside the light-transmissive glass envelope. The light-transmissive glass envelope can comprise a light-transmissive mixed alkali glass envelope and the phosphor layer can comprise a phosphor layer of approximately three mg/cm2. A barrier layer of approximately 0.3 mg/cm2 or less of alumina can be applied to the inner surface of the light-transmissive glass envelope. The mercury dose can be present in an amount to provide a saturated mercury vapor pressure within the light-transmissive glass envelope throughout substantially the entire life of the lamp. The lamp can have an end-of-life mercury consumption value of approximately 0.63 mg or less, including 0.

Abstract: An object of the present invention is to provide a plasma display panel that can suppress the generation of cracks in a dielectric layer, and also improve the yield, and a method for manufacturing such a display panel. A dielectric layer on a front panel is designed to have a two-layer structure in which a first dielectric layer and a second dielectric layer are laminated, and the first dielectric layer is formed through processes in which, after printing or applying a dielectric paste containing a glass flit onto a front substrate so as to cover display electrodes formed thereon as a stripe pattern, drying and firing the resulting substrate at a temperature not less than a softening point of the glass flit, and the second dielectric layer is formed on the first dielectric layer by using a sol-gel method.

Abstract: Ceramic HID lamps with improved thermal management having an adherent infrared reflective coating layer located on the outer surface of the vessel are described. They include a coating of a nonmetallic material proximate the first and second end portions of the vessel. Such coatings can minimize temperature gradients during lamp operation. Methods for preparing such lamps with improved thermal management are described as well.

Abstract: An excimer lamp which can emit UV radiation with a high degree of efficiency and high degree of uniformity, has a UV-reflecting film that does not peel. The excimer lamp is fitted with a silica glass discharge vessel that encloses a discharge gas which forms excimer molecules by dielectric barrier discharge in an internal space enclosed by a top wall panel, a bottom wall panel, side wall panels and end panels and with an electrode on both the outer surface of the top wall panel and another electrode on the outer surface of the bottom wall panel. On the inner surface of the discharge vessel, a UV-reflecting film comprised of silica and alumina particles is formed, at least, on the inner surface area of the side wall panels with the silica particles composing at least 30 weight % of the UV-reflecting film.

Abstract: An optical filter of a plasma display panel (PDP) and its fabrication method are disclosed. The optical filter includes an electromagnetic wave shield layer having a bias angle formed by cutting a mesh film along a predetermined direction.

Abstract: The invention relates to a high-pressure discharge lamp having a transparent discharge vessel, an ionizable filling which is arranged in the discharge space of the discharge vessel and electrodes, which extend into the discharge space of the discharge vessel, for the purpose of producing a gas discharge, as well as power supply lines, which are passed out of the discharge vessel, for the purpose of supplying energy to the electrodes, the discharge vessel of the high-pressure discharge lamp being provided partially with an electrically conductive coating, with the result that a capacitive coupling is produced between the coating and at least one electrode and/or power supply line. As a result, the starting properties and the luminous efficiency of the lamp are improved.

Abstract: The high pressure discharge lamp is fitted with a discharge vessel that has an inside volume with an inside length IL and a maximum inside diameter ID, and that is subdivided into a middle region of constant inside diameter ID and two end regions of variable inside diameter, an electrode projecting into the discharge vessel in the end region in each case. In addition, the discharge vessel has an aspect ratio of 2.5 to 8, preferably 3 to 6, the end region exhibiting a given length LRD in which the inside diameter is reduced to at least 85% of ID.

Abstract: A low-pressure mercury vapor discharge lamp (1) has a discharge vessel (3) enclosing, in a gastight manner, a discharge space provided with a filling of mercury and a rare gas. The discharge vessel (3) comprises means for maintaining an electric discharge in the discharge space. A portion of the surface (15) of the discharge vessel (3) facing the discharge space is provided with a protective layer (16) comprising yttrium oxide or aluminum oxide and further comprises a borate and/or a phosphate of an alkaline earth metal and/or of scandium, yttrium, or a further rare earth metal. Preferably, the alkaline earth metal is calcium, strontium, and/or barium. Preferably, the further rare earth metal is lanthanum, cerium, and/or gadolinium. The lamp according to the invention has a comparatively low mercury consumption.

Abstract: A method of producing an infrared lamp for a vehicle night vision system, where the lamp has a tube which surrounds a radiation source that emits infrared radiation and light radiation. The tube has an infrared-transmitting coating. By setting specific process parameters in the coating process and/or by post-treating the coated tube, holes are formed in an irregular arrangement in the coating. The holes have at least in some areas a defined average size and a defined average surface density.

Abstract: A fluorescent tanning lamp having a glass envelope has an ultra-violet light reflecting coating covering at least 180° of an inside surface of the envelope; and a phosphor layer covering substantially 360° of the inside surface of the envelope, including overlying the ultra-violet reflecting coating. An odor reducing photocatalytic material is provided on an outside surface of the envelope, the photocatalytic material being coextensive with the ultra-violet light reflecting material. A preferred material is anatase TiO2; i.e., the crystalline form.

Abstract: The invention relates to a discharge lamp with a discharge vessel (2) and at least one bulb neck (I, II) connected thereto with an inner quartz bar (6) and a first foil arrangement (9), which is arranged on the outer side (63) of the quartz bar (6) and is connected to power supply lines (7a, 7b) for an electrode (4, 5) which are arranged on both sides of the quartz bar (6), wherein the bulb neck (I, II) comprises at least one second foil arrangement (13), which is connected to the power supply lines (7a, 7b) and has a greater distance with respect to the longitudinal axis (A) of the quartz bar (6) than the first foil arrangement (9). The invention also relates to a method for producing a bulb neck of a discharge lamp.

Abstract: A high-pressure discharge lamp which is suitable for motor vehicle headlights, has an improved color point stability close to the black body locus, a high color temperature, and a high luminous efficacy (lm/w). The high-pressure discharge lamp includes an inner vessel with a discharge chamber, with at least two electrodes extending into the discharge chamber, and an outer bulb surrounding the inner vessel. The discharge chamber contains an ionizable filling including at least one rare gas, 0-10 mg of mercury, and a metal halide mixture. The metal halide mixture includes 40-80% by weight of sodium halide, 25-55% by weight of scandium halide, 1-15% by weight of indium halide, and 0-34% by weight of thallium halide.

Abstract: The present invention relates to an ultraviolet lamp comprising a glass shell and an electrode fixed on one or more ends of the lamp, where each electrode is a coiled wire with a hollow conical shape. The hollowed conical structure of the electrode reduces the thermal capacity of the electrode as compared with other types of electrodes of the same mass, makes the lamp start quicker, and decreases the emission loss of the electrode when the glow discharge is transformed to an arc discharge. The lamp of the present invention has a wide electrode surface area, such that the loads on each point of the emissive surface are equally distributed, thus decreasing the electron scattering and dispersion, and allowing the lamp to resist the impact from positive ions. Due to the shape and structure of the electrode, the lamp of the present invention has increased efficiency and emitting ability, and allows for a longer lasting lamp.

Abstract: A cold-cathode fluorescent lamp including a glass bulb and a pair of electrodes which are cylindrical and respectively inserted in two ends of the glass bulb. Two end portions of the glass bulb are substantially circular in transverse cross section, the two end portions respectively corresponding to the inserted pair of electrodes in length. At least part of a middle portion of the glass bulb is flat in transverse cross section, the middle portion corresponding to a space in the glass bulb between the pair of electrodes.

Abstract: The invention is concerned with a low-pressure mercury vapor discharge lamp comprising a light-transmitting discharge vessel, said discharge vessel enclosing, in a gastight manner, a discharge space provided with a filling of mercury, at least a part of a wall of the discharge vessel being provided with a luminescent composition comprising a first UV-A phosphor of general formula (Gd1-x-y-zYxLuy)PO4:Cez, wherein 0?x<1.0, 0?y<1.0, 0<z?0.2 and x+y+z<1, the low-pressure mercury vapor discharge lamp comprising also discharge means for igniting and maintaining an electric discharge in the discharge vessel. Such lamp is especially useful for tanning purposes as well as cosmetic and medical purposes. The invention is also concerned with an UV-A phosphor of general formula (Gd1-x-y-zYxLuy)PO4:Cez, wherein 0?x<1.0, 0?y<z?0.2 and x+y+z<1.

Abstract: A metal halide lamp is disclosed comprising an elongated discharge vessel, preferably made of a ceramic material, surrounded by an outer envelope and having a wall which encloses a discharge space containing an inert gas, such as xenon, and an ionizable filling, wherein at both ends in said discharge space an electrode is arranged between which a discharge arc can be maintained along a discharge path, wherein one end of the discharge vessel is mounted in a mounting base, said lamp comprising a band-shaped light-shielding strip extending laterally of the discharge path, and a lead-back conductor supplying current from the mounting base to the electrode at the other end of the discharge vessel, wherein, seen in cross section, the lead-back conductor is positioned within the sector defined by the two lines through the center of the discharge vessel and the edges of said strip.

Abstract: The invention relates to a high-pressure discharge lamp which comprises at least a burner (2) having a symmetrical discharge chamber (21), where at least the outer contour of the burner (2) has an elliptical shape in the region of the discharge chamber (21), two electrodes (41, 42) extending into the discharge chamber (21) and arranged in mutual opposition on the major axis of symmetry of the discharge chamber (21), and a multilayer interference filter (3) arranged on the outer contour of the burner (2) in the region of the discharge chamber (21), wherein the interference filter (3) mainly reflects light from at least one wavelength range of the UV light into the space between the two electrodes (41, 42).

Abstract: Disclosed is an electronic shielding light-transmitting member having an adhesive (2) and an electromagnetic shielding material (3) between two release films (1) and (4). By removing one of the release films (1) and (4) from the electronic shielding light-transmitting member and bonding the member to an optical filter or a plasma panel, there can be obtained an optical filter or a plasma panel having an electromagnetic shielding layer of excellent transparency.

Abstract: Disclosed is a lamp tube structure with reflective surface. In this invention, the lamp tube structure with reflective surface can be achieved by forming a reflective layer on the inner surface or outer surface through coating, plating, chemical vapor deposition, sputtering, evaporation deposition or pasting. The lamp tube structure with reflective surface can also be achieved by the assembling the parts with reflective surface in combination with the transparent lamp tube or lamp tube parts, in this invention. The incorporation of the reflective surface lets the lamp light be utilized more effectively, and it is helpful to energy saving.

Abstract: The compact fluorescent lamp comprises a bulb shaped outer envelope enclosing a discharge tube having a coiled configuration and a ballast unit for controlling the current in the tube. The lamp further comprises at least one joint mechanical support and starting aid means for positioning the discharge tube and the ballast unit and reducing a breakdown voltage path of the discharge tube. The at least one mechanical support and starting aid means is made of an electrically conducting material and connected electrically to at least one of the electrodes. The neck portion has a retaining member, and the mechanical support and starting aid means is supported by the retaining member and clamped on the discharge tube at least at a location in a vicinity of a middle section of the arc path. The mechanical support means further comprises at least one support section to provide support against an apex of the outer envelope, and at least one fixing section for fixing of the discharge tube.

Abstract: A gas discharge lamp (1) with a discharge vessel (2), a first electrode (3) projecting into the discharge vessel (2), and a second electrode (4) projecting into the discharge vessel (2) is described. The first electrode (3) is connected to an electrically conductive first conductor surface (5) surrounding the discharge vessel (2). The second electrode (4) is connected to an electrically conductive second conductor surface (6) surrounding the discharge vessel (2) and arranged such that it overlaps the first conductor surface (5) so as to form a capacitance (C).

Abstract: A fluorescent lamp including a glass bulb, a protection layer formed on an inner surface of the glass bulb, and a phosphor layer formed on a surface of the protection layer. The surface of the protection layer that is in contact with the phosphor layer has cracks. The bulk density of the metal oxide particles in the protection layer 32 is 80% or more. The surface of the protection layer 32 has 20 to 200 cracks per millimeter in a tube axis direction. The average particle diameter of the metal oxide particles is in the range from 0.01 ?m to 1 ?m. The thickness of the protection layer is in the range from 0.5 ?m to 5 ?m.

Abstract: High temperature-resistant transparent coatings based on zirconium oxide, which have improved dispersion properties and a high refractive index, comprise zirconium oxide with at least one additive from the group consisting of tantalum and/or tantalum oxide, whereby the proportion of Ta atoms, in relation to the total number of metal atoms in the coating is in the range of 5 to 30%.

Abstract: An excimer lamp which can emit UV radiation with a high degree of efficiency and high degree of uniformity, has a UV-reflecting film that does not peel. The excimer lamp is fitted with a silica glass discharge vessel that encloses a discharge gas which forms excimer molecules by dielectric barrier discharge in an internal space enclosed by a top wall panel, a bottom wall panel, side wall panels and end panels and with an electrode on both the outer surface of the top wall panel and another electrode on the outer surface of the bottom wall panel. On the inner surface of the discharge vessel, a UV-reflecting film comprised of silica and alumina particles is formed, at least, on the inner surface area of the side wall panels with the silica particles composing at least 30 weight % of the UV-reflecting film.

Abstract: An optical filter of a plasma display panel (PDP) and its fabrication method are disclosed. The optical filter includes an electromagnetic wave shield layer having a bias angle formed by cutting a mesh film along a predetermined direction.

Abstract: An outer envelope for accommodating at least one light-emitting body and a control gear with electrical components is suggested, the outer envelope comprises a wall at least partially of a glass material, in which the glass wall of the outer envelope is covered with a coating of powder varnish of poly-ester-blocked isocyanate for uniform spherical luminous intensity distribution, protecting the envelope against mechanical shocks and providing for shatter containment. A lamp with an outer envelope for accommodating at least one light-emitting body and a control gear with electrical components is also suggested. An improved compact fluorescent lamp comprises a discharge tube arrangement, a ballast circuit, a base and a substantially bulb-shaped outer envelope.