Abstract: In the excimer lamp according to the present invention, a flat discharge vessel having a substantially rectangular cross-sectional shape and comprising a pair of planar parts and a pair of side-surface parts has a pair of external electrodes disposed on the respective outer surfaces of the planar parts. The end parts of the external electrodes are provided with an auxiliary electrode extending to a region that is made smaller than the distance between the planar parts. A lead that supplies electricity to the external electrode is connected to the auxiliary electrode in the region that is made smaller than the distance between the planar parts.

Abstract: A plasma lamp apparatus. The apparatus can have a bulb coupled to at least the first end of a support member that is provided within a housing having an interior and exterior region. The housing can also have a first coupling member disposed within the housing, and a gap can be provided between the first coupling member and the support member. Additionally an rf source can be coupled to the support member. A fill material, which can include at least a first volume of a rare gas, a first amount of a first metal halide, a second amount of a second metal halide, and a third amount of mercury, can be spatially disposed within the bulb.

Abstract: A high-pressure discharge lamp having a starting aid and having a discharge vessel is disclosed, wherein the discharge vessel has two ends with seals, in which electrodes and possibly power supply lines are fastened, wherein the starting aid includes a wire system consisting of a core wire and a wrapping wire applied thereto, wherein the wrapping wire is a flat-pressed or flattened wire.

Abstract: A mercury-free discharge lamp with an electrical power consumption of less than 35 Watts may include a translucent discharge vessel which has a discharge space into which electrodes protrude for generating a gas discharge, wherein metal halides and ignition gas are contained in the discharge space, wherein the metal halides are present in a quantity in the range from 5 milligrams to 15 milligrams per 1 milliliter of discharge space volume in the discharge space.

Abstract: A high-pressure discharge lamp may include a bulb, which surrounds a discharge volume, wherein a fill which contains mercury and a noble gas from the group consisting of neon, argon, krypton, xenon on its own or in a mixture is accommodated in the discharge volume, wherein the fill contains Gd in halide form in order to produce a color temperature of at least 7500 K.

Abstract: In overview, the described system provides a mercury-free gas discharge UVC lamp system and in particular a liquid purification system including a treatment container, a treatment volume, and one or more UVC lamps as described hereinafter configured to irradiate the treatment volume. In an embodiment of the invention, the UVC lamp system includes a tubular glass or quartz envelope, evacuated to approximately 200 Torr and slightly backfilled with a noble gas such as Xenon, Argon, or Nitrogen. For end emission, the cylindrical opening in each electrode assembly may be a through-hole capped externally by a quartz window. The radiation flux and dwell time may be adjusted to the type and degree of contamination in the water.

Abstract: In various embodiments, a high pressure discharge lamp is provided having a bulb, which surrounds a discharge volume, wherein a filler, which contains indium halide, quicksilver and inert gas from the group neon, argon, krypton, xenon, is accommodated in the discharge volume, wherein the filler simultaneously contains the halide of iodine and bromine, wherein the portion of InI amounts at most to 90 mol %, in respect of the total of all halides of In.

Abstract: Embodiments of the present invention generally relate to a fluorescent flat panel lamp. In one aspect, a flat panel lamp is provided. The flat panel lamp includes a substantially flat glass plate. The flat panel lamp further includes a formed plate attached to the substantially flat glass plate. The glass plates are hermetically sealed and define a channel. The channel is configured to hold gas and mercury. The flat panel lamp further includes an electrode at each end of the channel, wherein a ratio of the active area of the channel to a surface area of the electrode is less than 10.

Abstract: An excimer lamp has a single tubular discharge chamber configured to enclose a discharge gas that is a noble gas or a mixing gas consisting of a noble gas and a halogen gas; a pair of electrodes configured to be arranged along opposite sides of the exterior surface of the discharge chamber; and an outer tube configured to cover the discharge chamber and the electrodes. Excimer molecules are produced by either dielectric barrier discharge or capacitive-coupled high-frequency discharge. An interior of a space formed between the outer tube and the discharge chamber is either in a vacuum state that is necessary and sufficient for preventing discharge, or is filled with an arc-suppression gas.

Abstract: A top-emitting OLED display having a transparent touch panel includes a substrate, an upper cover plate, an OLED display device, a capacitive touch device and a sealant layer. The OLED device is stacked on the substrate, the capacitive touch device is stacked on the upper cover plate, and the sealant layer combines the substrate and the upper cover plate such that the OLED device and the capacitive touch device are enclosed between the substrate and the upper cover plate. The capacitive touch device includes a first transparent conductive layer, an isolating layer, a second transparent conductive layer and an electromagnetic shielding layer sequentially formed on the upper cover plate. The electromagnetic shielding layer can effectively reduce the electromagnetic interfering between the OLED device and the capacitive touch device.

Abstract: A low-pressure discharge lamp includes a discharge vessel, a gas discharge medium including nitrogen contained in the discharge vessel at low pressure, wherein the discharge lamp is configured such that light may be generated by a high-current discharge process of the gas discharge medium.

Abstract: A plasma lamp apparatus. The apparatus has an arc tube structure having an inner region and an outer region in one or more embodiments. The arc tube structure has a first end comprising an associated first end diameter and a second end comprising a second end diameter according to a specific embodiment. The apparatus also has a center region provided between the first end and the second end in one or more embodiments. The center region has a center diameter, which is less than a first end diameter and/or a second end diameter.

Abstract: A plasma lamp apparatus. The apparatus can have a bulb coupled to at least the first end of a support member that is provided within a housing having an interior and exterior region. The housing can also have a first coupling member disposed within the housing, and a gap can be provided between the first coupling member and the support member. Additionally an rf source can be coupled to the support member. A fill material, which can include at least a first volume of a rare gas, a first amount of a first metal halide, a second amount of a second metal halide, and a third amount of mercury, can be spatially disposed within the bulb.

Abstract: A metal-halogenide filling for forming an ionisable filling comprises at least one inert gas, mercury and at least one halogen, the filling including at least the components Rb-halogenide and Mn-halogenide. This filling can in particular be contained in the discharge container of a metal-halogenide lamp.

Abstract: A mercury-free discharge lamp with an electrical power consumption of less than 35 Watts may include a translucent discharge vessel which has a discharge space into which electrodes protrude for generating a gas discharge, wherein metal halides and ignition gas are contained in the discharge space, wherein the metal halides are present in a quantity in the range from 5 milligrams to 15 milligrams per 1 milliliter of discharge space volume in the discharge space.

Abstract: An excimer lamp has a single tubular discharge chamber configured to enclose a discharge gas that is a noble gas or a mixing gas consisting of a noble gas and a halogen gas; a pair of electrodes configured to be arranged along opposite sides of the exterior surface of the discharge chamber; and an outer tube configured to cover the discharge chamber and the electrodes. Excimer molecules are produced by either dielectric barrier discharge or capacitive-coupled high-frequency discharge. An interior of a space formed between the outer tube and the discharge chamber is either in a vacuum state that is necessary and sufficient for preventing discharge, or is filled with an arc-suppression gas.

Abstract: The invention relates to novel gas fillings of low-pressure gas discharge lamps for reducing the starting and arc drop voltages at low Hg vapor pressures. In favor of a mixture consisting of Ne and Kr, the Ar portion of the gas filling is considerably reduced.

Abstract: The present invention relates to a high pressure sodium lamp comprising an evacuated cover including a base part, an arc tube comprising a first and a second electrode each being connected to the base part via conductor members. At least one conductor member is arranged isolated by a shielding member for preventing, during operation of the high pressure sodium lamp, the photo electronic stream from the at least one conductor member to the arc tube. The lamp comprises a second arc tube.

Abstract: A high-pressure discharge lamp may include a discharge vessel, which contains: electrodes, at least one noble gas as a start gas, at least one element selected from the group consisting of Al, In, Mg, Tl, Hg, and Zn for arc transfer and discharge vessel wall heating, and at least one rare earth halide for the generation of radiation, which is configured such that the generated light is dominated by molecular radiation, wherein at least one member of a first group of rare earth halides is used together with at least one member of a second group of rare earth halides, the first group having the property that the color distance decreases with a power increase when the power of the lamp is increased in a predetermined power interval, and the second group having the property that the color distance increases with a power increase when the power of the lamp is increased in this predetermined power interval.

Abstract: The present invention relates to glow-switch starters 1, lighting devices therewith and use thereof. The glow-switch starter 1 is suitable for use with three phase supply voltages substantially higher than the common 230V supply voltage 26. This allows more efficient gas discharges in e.g. fluorescent lamps 20, and/or more lamp power, and/or less energy losses in ballasts 22 and lamp electrodes. To make the glow-switch starter suited for such use, according to the invention, the gas filling 5 of the starter 1 is adapted. An important criterion is that the glow current in the steady state operation of the fluorescent lamp that is started by the starter is small enough to prevent closing of the (bimetallic) switch.

Abstract: In various embodiments, a high-pressure discharge lamp has a metal halide fill, iodine and bromine being used as the halogen. In addition, noble gas and Hg are used. Thallium is used as the metal, with the proportion of TlI being in the range from 25 to 75 wt. % of the mixture of TlI and TlBr.

Abstract: An electron emissive material includes a composition including a metal oxide, where the metal oxide is at least one oxide of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, Hf, or Zr, or any combinations thereof, where the metal oxide is present in a quantity that ranges from about 20% to 100% by weight of the total composition, where the composition is operable to emit electrons in a discharge medium in response to a thermal excitation, wherein the discharge medium under steady state operating conditions producing a total vapor pressure of less than about 2×105 Pa. A lamp including an envelope, an electrode including an electron emissive material and a discharge medium, is also disclosed.

Abstract: A low-wattage mercury vapor discharge fluorescent lamp is provided. The lamp has a discharge sustaining fill of mercury vapor and an inert gas having 1-100 mole % xenon, balance comprising a rare gas or rare gas mixture, such as krypton or argon. The fill gas has a total pressure of 0.5-4 torr, and the lamp being adapted to operate below 10 watts per foot of arc length.

Abstract: A low-pressure gas discharge lamp is described that has, in a gas-discharge vessel, one or more inert gases as a buffer gas and means for producing, and maintaining a low-pressure gas discharge and that contains a gallium halide or a mixture of a plurality of gallium halides, to which indium and/or thallium may also preferably be added. A low-pressure gas discharge lamp of this kind produces sufficient UV radiation for it to be used in tanning devices.

Abstract: A metal halide lamp (10) includes a discharge vessel (12) which may be formed of a ceramic material. The vessel defines an interior space (16). An ionizable fill is disposed in the interior space. The ionizable fill includes an inert gas and a halide component. The halide component includes a sodium halide, a cerium halide, at least one of a thallium halide and an indium halide, and optionally a cesium halide. The cerium halide is at least about 9 mol % of the halide component. At least one electrode (18, 20) is positioned within the discharge vessel so as to energize the fill when an electric current is applied thereto.

Abstract: A high pressure gas discharge device and methods of using the device as a UV gas discharge light source are disclosed. The device has a cathode covered partially with a dielectric layer which separates the cathode from an anode. A discharge device utilizes one or more microhollows in the uncovered part of the cathode. Methods of utilizing the discharge devise as a gas discharge light source for producing ultapure water.

Abstract: The present invention relates to glow-switch starters 1, lighting devices therewith and use thereof. The glow-switch starter 1 is suitable for use with three phase supply voltages substantially higher than the common 230V supply voltage 26. This allows more efficient gas discharges in e.g. fluorescent lamps 20, and/or more lamp power, and/or less energy losses in ballasts 22 and lamp electrodes. To make the glow-switch starter suited for such use, according to the invention, the gas filling 5 of the starter 1 is adapted. An important criterion is that the glow current in the steady state operation of the fluorescent lamp that is started by the starter is small enough to prevent closing of the (bimetallic) switch.

Abstract: The bulb (1) of the lamp which defines a longitudinal axis (A) is closed at one end by a seal (3), contact elements being fitted to the one end which are each electrically conductively connected to a power supply line (2) leading to a luminous element, the contact element being accommodated in a tubular part (15) of the seal part, characterized in that the contact element (5) protrudes outwards and is equipped in the interior of the tubular part with at least two outwardly protruding centering parts (10, 11) which are in contact with the tubular extension (16).

Abstract: he present invention aims at providing a metal halide lamp having a configuration to achieve the following goals: to prevent the lamp from burning out during the life due to a rise in lamp voltage; and to obtain high luminous efficiency at the same time. The metal halide lamp 1 comprises: an arc tube 4 made of translucent ceramic and having a main tube part 6 in which a pair of electrodes 14 is disposed; and an outer tube 3 housing the arc tube 4 therein. 4.0?L/D?10.0, where L (mm) is a length of a space between the electrodes 14 and D (mm) is an internal diameter of the main tube part 6. R/r ?3.4, where R (mm) is an internal diameter of the outer tube 3 and r (mm) is an external diameter in the main tube part 6 of the arc tube 4, within a region positionally corresponding to, in a radial direction of the outer tube and the arc tube, the space between the electrodes 14, on a cross-sectional surface where an outer circumference of the arc tube 4 comes closest to an inner circumference of the outer tube 3. M?4.

Abstract: A coated luminescent material having a luminescent material powder formed by grains, the luminescent grains being coated, and the coating being at most 5 nm, preferably at most 2 nm.

Abstract: A high-pressure discharge lamp has a lamp bulb of silica glass encapsulating mercury, an inactive gas, and a mixed halogen gas containing at least two halogen gases, and at least a pair of electrodes disposed in the lamp bulb in confronting relation to each other. The type and content of a primary halogen gas whose content is the greatest in the mixed halogen gas are determined based on a bulb wall load.

Abstract: A short arc high-pressure discharge lamp (1) for dc operation, includes a discharge vessel (2) that has two necks (4) diametrically opposite each other, in which an anode (26) and a cathode (7) made of tungsten are melted in a gastight manner, and which has a filling made of at least one noble gas and possibly mercury. According to the invention, at least the material of the cathode tip (11) contains lanthanum oxide La2O3 and at least another oxide from the group consisting of hafnium oxide HfO2 and zirconium oxide ZrO2 in addition to the abovementioned tungsten.

Abstract: A rare-gas low-pressure discharge lamp for generating ultraviolet light, in particular for cosmetic or therapeutic purposes, has a discharge vessel which is filled with rare gas and is at least partly transparent to UV light and which is at least partly coated with a phosphor which radiates UV light upon excitation by an excitation radiation produced in the discharge vessel so as to utilize a desired spectral range.

Abstract: An arc lamp assembly which includes in combination a reflector and a light source which is surrounded by said reflector. A dichroic coating on the reflector functions to reflect radiation in the range of about 300 to 600 nm. The light source is an arc lamp which contains a metal halide fill component which includes a mixture of scandium iodide, or other suitable lanthanide, indium iodide and cesium iodide, whereby the lamp assembly emits effective amounts of UV radiation to cure selected chemical compositions. The fill mixture, which contains no sodium component, contributes to improved lamp life and a reduction in passive lamp failure over halide fill mixtures which contain sodium iodide as a fill component.

Abstract: Disclosed is a metal halide discharge lamp which essentially permits disusing mercury. The metal halide discharge lamp comprises a refractory and transparent hermetic vessel, a pair of electrodes fixed to the hermetic vessel, and a discharge medium sealed in the hermetic vessel and containing a first halide, a second halide and a rare gas, the first halide being a halide of a metal which achieves a desired light emission, the second halide having a relatively high vapor pressure, being at least one halide of a metal which is unlikely to emit a visible light compared with the metal of the first halide, and acting as a buffer gas.

Abstract: An arrangement with relatively high pressure tightness in a super-high pressure mercury lamp of the short arc type which is operated with an extremely high mercury vapor pressure is achieved by the super-high pressure mercury lamp having the following characteristic: an arc tube portion in which there is a pair of opposed electrodes, and which is filled with greater than or equal to 0.15 mg/mm3 of mercury; and side tube portions which extend from opposite sides of the arc tube portion, in which the electrodes are partially hermetically enclosed, and in which the electrodes and metal foils are welded to one another, and the width of the metal foils in the weld areas is so small that it is less than or equal to the diameter of these electrodes.

Abstract: A metal halide lamp for an automobile headlight is provided, which includes an arc tube in which a pair of tungsten electrodes are provided at both ends and a metal halide as a main component of a luminescent material and xenon gas as a buffer gas are sealed, wherein the tungsten electrodes contain not more than 0.4 wt % of thorium oxide, the metal halide contains scandium iodide, and a pressure of the xenon sealed in the arc tube is at least 0.4 MPa. This makes it possible to provide a long-life metal halide lamp for an automobile headlight that can achieve a further improved lumen maintenance factor and other life characteristics during 2000 hours or more of lighting.

Abstract: A bulb for an electrodeless lamp comprises: an envelope through which the light can be permeated; a filled material filled in the envelope for emitting the light as being excited by high frequency energy; and buffer gas, wherein the buffer gas comprises first buffer gas, and second buffer gas having a partial pressure less than 1% of the partial pressure of the first buffer gas in order to reduce a discharging voltage and lighting time, and thereby, the re-lighting after putting out the light can be performed easily and the re-lighting time is reduced to improve the convenience of the user and the reliability of electrodeless lamp.

Abstract: A fluorescent lamp having a stem provided with first and second lead wires for energization of an electrode and an electrically-insulating member provided therein with a first hole and a second hole larger in cross-sectional area than said second lead wire. The first and second lead wires are inserted in the first and second holes of the electrically-insulating member, respectively, and an outer diameter of a glass envelope of the fluorescent lamp is not smaller than 13 mm and not larger than 29 mm.

Abstract: A microcavity discharge device generates radiation with wavelengths in the range of from 11 to 14 nanometers. The device has a semiconductor plug, a dielectric layer, and an anode layer. A microcavity extends completely through the anode and dielectric layers and partially into the semiconductor plug. According to one aspect of the invention, a substrate layer has an aperture aligned with the microcavity. The microcavity is filled with a discharge gas under pressure which is excited by a combination of constant DC current and a pulsed current to produce radiation of the desired wavelength. The radiation is emitted through the base of the microcavity. A second embodiment has a metal layer which transmits radiation with wavelengths in the range of from 11 to 12 nanometers, and which excludes longer wavelengths from the emitted beam.

Abstract: A light source with a sealed, light-transmissive tube filled with high pressure gases or high pressure gas mixtures and a microhollow cathode (MHC) discharge capable of excimer production are provided.

Abstract: An ultrahigh pressure mercury lamp which is small and has high light radiation intensity and moreover good color reproduction with high efficiency in which, even with a large amount of mercury added, a failure of the mercury to vaporize in the bulb part does not occur, and in which blackening of the bulb part due to wearing of the electrodes even under a large electrode load as a result of shortening of the distance between the electrodes is low is obtained by an ultrahigh pressure mercury lamp in which a bulb part of the discharge vessel made of translucent material has an essentially ovoid shape, is filled with at least 0.2 mg/mm3 of mercury and which is operated at an input wattage of at most 400 W using direct current, has the length D of the tip area of the anode and the length L of the bulb part in the direction of the tube axis of the lamp set in accordance with the relationship D≧L/2.

Abstract: An apparatus for subjecting light sensitive materials to visible radiation is disclosed which minimizes the amount of heat generated. The apparatus includes a source of visible radiation including at least one microwave energy responsive sulfur bulb and applies microwave energy to the sulfur bulb to cause the sulfur bulb to emit visible light. The apparatus further includes a holder defining a surface for receiving light sensitive materials located relative to the microwave energy responsive sulfur bulb. A light diffusing assembly is disposed relative to the sulfur bulb and responsive to the visible light emitted by the sulfur bulb to illuminate light sensitive materials received by the holder with diffused uniform visible light.

Abstract: The present invention is a microwave excited electrodeless bulb and a process of generating ultraviolet light with a microwave excited electrodeless bulb. A process of generating ultraviolet light with a microwave excited electrodeless bulb in accordance with the invention includes providing an electrodeless bulb (19) with an envelope (32) containing an ultraviolet emissive material which emits ultraviolet light in response to microwave excitation. The envelope is filled with an ultraviolet emissive material. The envelope has a major internal dimension (30) between ⅓ and ½&lgr; to which a strong field of the microwave excitation is coupled during emission of ultraviolet light with &lgr; being the free space wavelength of the microwave excitation which varies between 2.4 and 2.5 GHz. The strong field is produced by a microwave source having a steady state rated output power of no greater than 0.85 kW. The bulb is rotated at a rotational velocity of at least 20 revolutions per minute.

Abstract: A discharge lamp includes means for containing a light emitting fill, the fill being capable of absorbing light at one wavelength and re-emitting the light at a different wavelength, the light emitted from the fill having a first spectral power distribution in the absence of reflection of light back into the fill; means for exciting the fill to cause the fill to emit light; and means for reflecting some of the light emitted by the fill back into the fill while allowing some light to exit, the exiting light having a second spectral power distribution with proportionately more light in the visible region as compared to the first spectral power distribution, wherein the light re-emitted by the fill is shifted in wavelength with respect to the absorbed light and the magnitude of the shift is in relation to an effective optical path length.

Abstract: A mercury-free high pressure sodium vapor lamp is dosed with sodium, xenon and zinc as an elemental metal additive. The addition of the metal additive prevents an undesirable low-voltage operating mode of the sodium-xenon discharge associated with a mercury-free HPS lamp, which otherwise occurs when sodium is no longer available to participate in the arc discharge.

Abstract: A high intensity discharge lamp, especially for optical projection systems, in one embodiment uses an anode electrode, a cathode electrode and a cylindrical envelope of single crystal (SC) sapphire. The fill may contain hydrogen, chlorine, sodium, scandium, sulfur and selenium and is under pressure exceeding 20 atmospheres. The lamp produces a continuous non-flash arc and generates a correlated color temperature between 6500 and 7000 degrees Kelvin and an efficacy exceeding 60 lumens/watt.

Abstract: A vessel has a main body and a plugging members made of alumina. First composite electrode has a cylindrical current conductor having substantially same diameter as a diameter of the opening portion at one end of the vessel, and an electrode jointed by welded at a bottom of the current conductor exposed to inside of the vessel. The current conductor of the first composite electrodes has a cylindrical member made of alumina and a metallization layer made of molybdenum and alumina. A ceramic discharge tube is made in that the vessel and a first composite electrode have been subjected to a co-firing into an integrated body, with the first composite electrode inserted into the opening portion at one end of the vessel so that the electrode is exposed to the inner space with one end of the first composite electrode is exposed to outside of the vessel.

Abstract: A high brightness discharge light source having improved thermal balance characteristics includes a lamp envelope having an arc chamber formed therein and a pair of electrodes extending into opposite ends of the arc chamber so as to be displaced from one another by a distance of no greater than 4 mm. A fill disposed within the arc chamber is excited to a discharge state upon the introduction of an excitation energy coupled through the pair of electrodes. The light source is operated vertically so that one of the electrodes is disposed at the top region and the other electrode is disposed at the bottom region of the arc chamber. The arc chamber is formed having a diameter dimension which is just larger than the spacing between the electrodes, and a height dimension which is approximately twice the diameter dimension. The diameter dimension is substantially uniform along the length of the arc chamber.

Abstract: An arc lamp assembly which includes in combination a reflector and a light source which is surrounded by said reflector. A dichroic coating on the reflector functions to reflect radiation in the range of about 300 to 600 nm. The light source is an arc lamp which contains a metal halide fill component which includes a mixture of scandium iodide, or other suitable lanthanide, indium iodide and cesium iodide, whereby the lamp assembly emits effective amounts of UV radiation to cure selected chemical compositions. The fill mixture, which contains no sodium component, contributes to improved lamp life and a reduction in passive lamp failure over halide fill mixtures which contain sodium iodide as a fill component.