| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 313487000 | Plural | 54 |
| 20080224591 | Low-Pressure Mercury Discharge Lamp and Process for Its Preparation - The invention relates to a low-pressure mercury discharge lamp comprising an envelope with an inner surface enclosing a discharge space in which a mercury comprising filling is accommodated, at least one electrode for generating ultraviolet radiation in said discharge space, and a phosphor layer formed over said inner surface to convert said ultraviolet radiation into light of the green wavelength region, wherein said phosphor layer consists of a water-dispersable blend of a yellow-green phosphor and a blue-green phosphor. The blend consists preferably of the CBT and BAM-green phosphors. | 09-18-2008 |
| 20080224592 | FLUORESCENT LAMP FOR STIMULATING PREVITAMIN D3 PRODUCTION - The invention relates to a fluorescent lamp, preferably a low pressure mercury discharge lamp for stimulating previtamin D3 production. The lamp has a discharge tube with a discharge gas filling. The inside wall of the discharge tube is covered with a phosphor coating for converting short wave UV radiation of the ionized discharge gas into longer wave UV radiation. The discharge tube is closed at both ends and provided with electrodes which are held and lead through a base cap at both ends. The base caps of the lamp are provided with contact pins for connecting the lamp to an electrical power supply. | 09-18-2008 |
| 20080224593 | Plasma display panel and display device including the same - A PDP includes first and second substrates, a plurality of electrodes between the first and second substrates, a plurality of barrier ribs between the first and second substrates to define discharge cells, at least one dielectric layer on the electrodes, a protective layer on the dielectric layer, a discharge gas in the discharge cells, and a plurality of photoluminescent layers in the discharge cells, the photoluminescent layers including at least one red photoluminescent layer in a corresponding discharge cell, the red photoluminescent layer including at least one inorganic pigment, and exhibiting a substantially lower decrease in a light emitting peak at about 570 nm to about 600 nm than at about 610 to about 630 nm, as compared to a comparable photoluminescent layer including no inorganic pigment. | 09-18-2008 |
| 20080231162 | Lighting device and display device provided with the same - To provide a lighting device capable of a substantial color adjustment and unlimited control of spectral components, a lighting device of the present invention puts a first transparent plate in which a phosphor layer dispersed with a first phosphor is formed in places and a second transparent plate in which a phosphor layer dispersed with a second phosphor is formed in places in a path of light from a light source, and stacks the first transparent plate and the second transparent plate on top of each other. The second phosphor differs from the first phosphor. How much in terms of area the phosphor layers overlap with each other is made variable, and the color tone of the lighting device can thus be controlled. The lighting device uses a blue light source as its light source, a green phosphor as the first phosphor, and a red phosphor as the second phosphor. An intended chromaticity can be obtained by varying how much in terms of area the green phosphor layer and the red phosphor layer overlap with each other and thereby adjusting the green light absorption amount of the red phosphor. | 09-25-2008 |
| 20080231163 | PLASMA DISPLAY PANEL AND METHOD FOR MANUFACTURING THE SAME - A plasma display panel and a method for manufacturing the same are disclosed. The plasma display panel includes a first substrate comprising first electrodes, a second substrate arranged to face the first substrate, the second substrate comprising second electrodes, barrier ribs formed between the first and second substrates, to define discharge cells, and a phosphor layer formed in each of the discharge cells. The phosphor layer includes a phosphor and a dielectric having a secondary electron emission coefficient higher than the phosphor. | 09-25-2008 |
| 20080258602 | PHOSPHOR, METHOD OF PRODUCING THE SAME, AND LIGHT EMITTING APPARATUS - There are provided a phosphor which is a divalent europium-activated oxynitride phosphor substantially represented by General formula (A): Eu | 10-23-2008 |
| 20080258603 | Color display device - A color display device ( | 10-23-2008 |
| 20080265739 | Phosphor and Method for Producing Phosphor and Light Emitting Device - A phosphor, comprising a europium activated alkaline earth metal aluminate phosphor, wherein an atomic composition ratio thereof measured by an XPS is the same as an atomic composition ratio measured by a mass analysis method. A method for preparing the above phosphor comprising burning raw materials for the phosphor by heating in a heating furnace while flowing or rotating them to form a europium activated alkaline earth metal aluminate phosphor having an atomic composition ratio thereof measured by the XPS being the same as an atomic composition ratio measured by the mass analysis method. A luminescence of high luminance can be obtained by excitation with a vacuum ultraviolet ray, and a blue phosphor having a decrease in luminance thereof due to a heating process or the like reduced is realized. | 10-30-2008 |
| 20080284306 | Low-Pressure Mercury Vapor Discharge Lamp and Compact Fluorescent Lamp - A low-pressure mercury vapor discharge lamp has a light-transmitting discharge vessel ( | 11-20-2008 |
| 20090058256 | LIGHT-EMITTING DEVICE - A light-emitting device is provided, which includes a package having a first portion and a second portion surrounding it, a semiconductor light-emitting element mounted on the first portion and emitting a light having an emission peak in a near-ultraviolet region, a transparent resin layer covering the semiconductor light-emitting element and contacted with the package, and a laminated body formed on the transparent resin layer with end faces of the laminated body being contacted with the second portion. The transparent resin layer has an arch-like outer profile perpendicular cross section. The laminated body has an arch-like outer profile in perpendicular cross section and comprises a red fluorescent layer, a yellow fluorescent layer, a green fluorescent layer and a blue fluorescent layer laminated in the mentioned order. The yellow fluorescent layer has a top portion which is made larger in thickness than that of the end face portions thereof. | 03-05-2009 |
| 20090085458 | FLUORESCENT MATERIAL AND LIGHT-EMITTING DEVICE - A fluorescent material includes first and second phosphors. The first phosphor is a light-storing phosphor, which is represented by the general formula (M | 04-02-2009 |
| 20090102348 | ENHANCED COLOR CONTRAST LIGHT SOURCE - A lamp having improved color quality scale is provided. The lamp has a light-transmissive envelope and a phosphor layer comprising a first phosphor and a second phosphor wherein the first phosphor has an emission band with a maximum between 590 nm and 640 nm and the second phosphor has an emission band with a maximum between 520 nm and 570 nm. The light generated by the phosphor layer, when the lamp is energized, has delta chroma values for all fifteen color samples of the color quality scale within select parameters. The delta chroma values are measured in the CIE LAB color space. | 04-23-2009 |
| 20090128000 | INSECT ATTRACTION LIGHT SOURCE - A lamp having improved insect attraction is provided. The lamp has a light-transmissive envelope being substantially free of cerium. The lamp also has a phosphor layer comprising at least one phosphor having an emission band in the UVA light region for attracting insects. The at least one phosphor of the phosphor layer desirably has an emission spectrum in the UVA region that sufficiently matches an insect's eye sensitivity curve. For instance, the at least one phosphor can have an emission band in the UVA wavelength range of 320 to 400 nm, wherein said emission band has a maximum between 325 to 365 nm. | 05-21-2009 |
| 20090134769 | PHOSPHOR BLEND FOR A COMPACT FLUORESCENT LAMP AND LAMP CONTAINING SAME - A phosphor blend for a compact fluorescent lamp is described wherein the phosphor blend comprises a green-emitting Tb | 05-28-2009 |
| 20090200915 | METHOD LIGHT EMITTING DEVICE WITH A EU(III)-ACTIVATED PHOSPHOR AND SECOND PHOSPHOR - This invention relates to a light emitting device based on a Xe or Xe/Ne excimer discharge, e.g. a full colour display screen or a xenon excimer lamp, comprising a phosphor blend of a red-emitting Eu(III)-activated phosphor and an UVlight emitting phosphor. Full colour plasma display panels (PDPs) according to the present invention comprising a phosphor blend of a red-emitting Eu(III)-activated phosphor and an UV-light emitting phosphor for the red pixels show an improved colour point and a shorter decay time compared to the use of the respective single red emitting Eu(III) activated phosphor. Xenon excimer lamps for illumination purposes (e.g. for LCD backlighting or X-Ray image illumination) comprising a phosphor blend of a redemitting Eu(III) activated phosphor and an UV-light emitting phosphor show an improved colour rendering. The invention is also related to a phosphor blend of a red-emitting Eu(III)-activated phosphor and an UV-light emitting phosphor. | 08-13-2009 |
| 20090309482 | PHOSPHOR FOR HIGH CRI LAMPS - A fluorescent lamp including a phosphor layer including (Y | 12-17-2009 |
| 20100013370 | PLASMA DISPLAY PANEL AND DISPLAY DEVICE USING THE SAME - Provided is a plasma display device which is bright and has high contrast and high image quality. A plasma display device includes: a front substrate and a back substrate facing each other interposing a discharge gap; and a plurality of discharge cells formed by the front substrate and the back substrate, wherein a mixture gas containing Xe is filled in the discharge gap, and each of a plurality of phosphor layers of red, green, and blue is arranged in the discharge cell. And, the plasma display device performs a reset operation by, at least, a weak discharge. A crystal material is arranged in the phosphor layers of red, green, and blue so as to uniform weak discharge firing voltages for reset discharges in respective discharge cells. | 01-21-2010 |
| 20100052507 | FLUORESCENT COATING FOR HIGH OUTPUT LAMPS WITH COLOR TEMPERATURES OF LESS THAN 2700 KELVIN - The invention relates to a fluorescent coating for Hg low-pressure discharge lamps, comprising a fluorescent composition from at least one green fluorescent material emitting in the green spectral range, especially a Tb- and/or Eu-doped green fluorescent material, and a red fluorescent material emitting in the red spectral range, especially a Eu and/or Mn red fluorescent material. The invention is characterized in that a further fluorescent material is present which is adapted to absorb UV Hg and Hg-Vis radiation. | 03-04-2010 |
| 20100052508 | DISCHARGE LAMP AND PRODUCTION METHOD THEREOF - A discharge lamp is disclosed, including a sealed vessel with an inner surface, at least one illuminating gas filled inside the sealed vessel, and a fluorescent layer coated on the inner surface. The composition of the fluorescent layer is adjusted according to a colored light emitted by the illuminating gas during a discharge process within the sealed vessel, such that the colored light is converted into a visible light after passing through the fluorescent layer. | 03-04-2010 |
| 20100090583 | Green phosphor for plasma display panel, green phosphor composition including the same, and plasma display panel including the same - A green phosphor for a plasma display panel (PDP), a green phosphor composition including the same, and a PDP including the same, the green phosphor including a green phosphor represented by Formula 1: (Lu | 04-15-2010 |
| 20100096974 | BLUE-GREEN AND GREEN PHOSPHORS FOR LIGHTING APPLICATIONS - Embodiments of the present techniques provide a related family of phosphors that may be used in lighting systems to generate blue or blue-green light. The phosphors include systems having a general formula of: ((Sr | 04-22-2010 |
| 20100102704 | ILLUMINANT MIXTURE FOR A DISCHARGE LAMP AND DISCHARGE LAMP, IN PARTICULAR AN Hg LOW-PRESSURE DISCHARGE LAMP - The invention relates to an illuminant mixture for a discharge lamp ( | 04-29-2010 |
| 20100141114 | ILLUMINANT MIXTURE FOR A DISCHARGE LAMP AND DISCHARGE LAMP, IN PARTICULAR AN HG LOW-PRESSURE DISCHARGE LAMP - The invention relates to an illuminant mixture for a discharge lamp ( | 06-10-2010 |
| 20100148659 | PLASMA DISPLAY PANEL AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a plasma display panel (PDP) and a PDP that includes a phosphor layer having a first phosphor and a second phosphor, wherein the first phosphor can be excited by a first radiation having a wavelength of 147±10 nm, a second radiation having a wavelength of 173±10 nm, and a third radiation having a wavelength within the first wavelength range, and the second phosphor has a maximum emission peak in the first wavelength range, and a method of manufacturing the PDP. These improve efficiency of green light emission in order to improve the image quality of a PDP. | 06-17-2010 |
| 20100148660 | Plasma display panel - A plasma display panel that includes a first substrate and a second substrate facing each other, a plurality of address electrodes disposed on the first substrate, a plurality of display electrodes disposed on one side of the second substrate facing the first substrate in a direction crossing the address electrodes, and red, green, and blue phosphor layers disposed in a discharge space between the first and second substrates. The green phosphor layer includes a green phosphor and an inorganic pigment absorbing a wavelength of about 580 nm to about 640 nm. The plasma display panel includes a green phosphor layer having a reduced decay time and good color purity characteristics, as well as excellent luminance, discharge, and life-span characteristics. | 06-17-2010 |
| 20100156266 | GAS DISCHARGE LIGHT EMITTING PANEL - A gas discharge light emitting panel is provided that prevents deterioration in display properties of the panel, which accompanies changes in light-emitting properties of phosphors. It includes a front panel and a rear panel that are disposed to oppose each other, with a discharge space being interposed therebetween, and a phosphor layer that is disposed above a principal surface located on the discharge space side of the rear panel and that emits light by being irradiated with ultraviolet rays generated in the discharge space. The phosphor layer contains first and second phosphors in which the changes in at least one property selected from luminance and chromaticity, which accompany driving of the panel, occur in the opposite directions to each other. | 06-24-2010 |
| 20100156267 | PLASMA DISPLAY PANEL - A plasma display panel has a first plate provided with a plurality of display electrodes extending in a first direction and a second plate in opposition to the first plate via a discharge space. The second plate is provided with a plurality of address electrodes extending in a second direction and a phosphor layer. The phosphor layer includes a magnesium oxide crystal and a plurality of kinds of phosphors, the phosphors being classified according to respective kinds. A surface of a particle of manganese-activated zinc silicate, which is one of the plurality of kinds of phosphors, is coated with a coating oxide which is at least one kind of element being oxidized. An electronegativity of the coating oxide is smaller than an average electronegativity of contained elements of zinc silicate excluding oxygen. | 06-24-2010 |
| 20100156268 | Phosphor compositions for white discharge cell and plasma display panel using the same - Provided are a phosphor composition formed in a white discharge cell of a plasma display panel (PDP) and a PDP using the same. The PDP includes a first substrate and a second substrate facing the first substrate, a barrier rib disposed between the first substrate and second substrate to define a plurality of discharge cells, first discharge electrodes and second discharge electrodes disposed between the first substrate and the second substrate, and a phosphor composition. The discharge cells includes red discharge cells, green discharge cells, blue discharge cells, and white discharge cells, and the phosphor composition is formed in the white discharge cells. One of the red discharge cells, one of the green discharge cells, one of the blue discharge cells, and one of the white discharge cells form a pixel. The composition ratio of each of the phosphors to another is different from each other. Since the white phosphor layer includes red, green, and blue phosphors each of which having a different composition ratio within a predetermined range, light room contrast may be improved by controlling brightness in the white discharge cell, and difference of efficiencies in red, green, and blue discharge cells may be compensated. | 06-24-2010 |
| 20110025187 | LOW-PRESSURE GAS-DISCHARGE LAMP FOR INFLUENCING THE ENDOGENOUS MELATONIN BALANCE - The invention relates to a low-pressure gas-discharge lamp which, with its light in the red spectral region, influences the biological circadian rhythm by controlling melatonin secretion. The tubular glass discharge vessel, which can also be in the shape of a double helix, is filled with a noble gas or noble-gas mixture and mercury. Electrodes for the supply of energy are arranged at both ends of the discharge vessel. The discharge vessel is multicoated on the inside by phosphor layers applied one after the other. The first phosphor layer located on the glass surface consists of phosphor which is excited both by ultraviolet mercury radiation between 180 nm and 400 nm and also by the blue radiation between 400 nm and 490 nm emitted by the mercury discharge, and by the visible radiation emitted by the second or further phosphor layers between 400 nm and 550 nm, where visible light having emission maxima in the region between 500 nm and 650 nm is generated. In combination with light sources for melatonin suppression, the low-pressure gas-discharge lamp is, with its warm light, particularly suitable for stimulation of the quasi-circadian rhythm in an individual in the absence of external conditions, such as sunlight. Owing to its good colour reproduction and high energy efficiency, it meets all necessary requirements of a light source for illumination tasks and is thus also suitable for general lighting. | 02-03-2011 |
| 20110050086 | PHOSPHORS, FABRICATING METHOD THEREOF, AND LIGHT EMITTING DEVICE EMPLOYING THE SAME - The invention provides a phosphor composed of (M | 03-03-2011 |
| 20110084594 | PHOSPHORS, FABRICATING METHOD THEREOF, AND LIGHT EMITTING DEVICES EMPLOYING THE SAME - The invention provides a phosphor emitting UV and visible light, which may be collocated with other phosphors to provide a white light illumination device, composed of | 04-14-2011 |
| 20110084595 | PLASMA DISPLAY PANEL - A plasma display panel enhancing an emission efficiency of a green phosphor layer by increasing an excitation efficiency of a green phosphor layer using visible light emitted from a dielectric layer or barrier ribs, the plasma display panel including a first substrate and a second substrate disposed to face the first substrate. A plurality of display electrodes are formed on the first substrate. A first dielectric layer is formed on the first substrate to cover the display electrodes. A plurality of address electrodes are formed on the second substrate in a direction crossing the display electrodes. A second dielectric layer is formed on the second substrate to cover the address electrodes. Barrier ribs are disposed in a space between the first dielectric layer and the second dielectric layer to form a plurality of discharge cells. The second dielectric layer and the barrier ribs comprise a short wavelength phosphor material. | 04-14-2011 |
| 20110121716 | GREEN PHOSPHOR FOR PLASMA DISPLAY PANEL AND PLASMA DISPLAY PANEL INCLUDING SAME - A green phosphor for a plasma display panel and a plasma display panel including the same, the green phosphor including a first phosphor of YAl | 05-26-2011 |
| 20110221329 | Low Pressure Discharge Lamp - A low-pressure discharge lamp having a discharge vessel which delimits a gas-tight fill chamber containing a filling gas, wherein the side of the discharge vessel facing the fill chamber is coated at least partially with a luminescent phosphor mixture by means of which electromagnetic radiation in the non-visible range can be transferred into the visible range. A low-pressure discharge lamp which is energy-saving and at the same time possesses good efficiency is provided in that primarily argon is used as the filling gas and that the average particle size of the luminescent phosphor mixture is greater than 5 m. | 09-15-2011 |
| 20110241534 | PLASMA DISPLAY DEVICE - The present invention provides a plasma display device that has light emission properties with short persistence where green light has a persistence time of 3.5 msec or less, that is excellent in luminance, luminance degradation resistance, and color tone, and that is suitable for, for example, a stereoscopic image display device. The present invention provides a plasma display device including a plasma display panel in which a pair of substrates at least whose front side is transparent are disposed to oppose each other so as to form a discharge space between the substrates, barrier ribs for dividing the discharge space into a plurality of discharge spaces are disposed on at least one substrate, electrode groups are disposed on the substrates so as to produce discharge in the discharge spaces divided with the barrier ribs, and a green phosphor layer that emits light by the discharge is provided, wherein the green phosphor layer includes a mixed phosphor containing a short persistence Mn | 10-06-2011 |
| 20110309738 | ENHANCED UV-EMITTING FLUORESCENT LAMP - An enhanced UV-emitting fluorescent lamp is described that provides a UV spectral emission for simultaneously tanning of the human skin and promotion of vitamin D production in the human body. The lamp contains a phosphor layer having a phosphor blend of three rare-earth-activated phosphors: SrB | 12-22-2011 |
| 20120032580 | PHOSPHOR BLEND AND FLUORESCENT LAMP CONTAINING SAME - A phosphor blend is described wherein the blend consists of a red-emitting rare earth phosphor, a green-emitting rare earth phosphor, and a blue-emitting rare earth phosphor wherein the 50% size of the phosphors is between about 12 to 15 μm. The phosphor blend is incorporated into a fluorescent lamp having an increased efficacy. A dual layer coating may be used to provide an additional increase in efficacy. | 02-09-2012 |
| 20120098411 | LAMP WITH ENHANCED CHROMA AND COLOR PREFERENCE - Disclosed herein are low pressure discharge lamps having enhanced chroma and color preference. improved color quality scale, especially at elevated color temperatures, is provided. The light generated by the light-emitting elements of the lamp, when the lamp is energized, has Color Preference Scale values, as well as delta chroma values for fifteen color samples of the Color Quality Scale, within select parameters. | 04-26-2012 |
| 20120126685 | LAMP FOR INCANDESCENT-LIKE COLOR QUALITY - A low pressure discharge lamp comprises a phosphor composition configured to provide a total light emission having characteristics within specified parameters, including color point above or substantially on the Planckian locus in the CIE standard chromaticity diagram; CCT of from about 2500 kelvin to about 3600 kelvin; general color rendering index Ra(8) of at least about 80; and special color rendering index R′a(14) of from about 72 to about 87. These novel lamps result in incandescent-like color quality while also having favorable efficacy. Also disclosed are phosphor blends which enable the achievement of such lamps. | 05-24-2012 |
| 20120286645 | LAMP WITH PHOSPHOR COMPOSITION FOR IMPROVED LUMEN PERFORMANCE, AND METHOD FOR MAKING SAME - Disclosed herein are lamps comprising a radiation source and a phosphor blend configured for conversion of radiation, the phosphor blend including at least two different rare earth phosphors, wherein the phosphor blend comprises at least one multimodal rare earth phosphor. Disclosed advantages may include greater lumen output than an identical lamp in which the phosphor blend, at the same loading, does not comprise at least one multimodal rare earth phosphor. | 11-15-2012 |
| 20130026905 | FLUORESCENT LAMPS HAVING HIGH CRI AND LPW - A fluorescent lamp including the four rare earth phosphor system provided herein exhibits high color rendering index (CRI), of at least 87, while simultaneously achieving high lumen output, or lumens per watt (LPW), of at least 80. The phosphor coating may be disposed in a one or two layer coating format. The four rare earth phosphor system includes a red emitting phosphor, a green emitting phosphor, a blue emitting phosphor, and a blue-green emitting phosphor, all four phosphors being rare earth-doped phosphor compositions. | 01-31-2013 |
| 20130076228 | STRONTIUM PHOSPHOR BLENDS HAVING HIGH CRI - A fluorescent lamp is provided including a phosphor blend comprising less than about 10% by weight rare earth phosphor, based on the total weight of the phosphor composition. This phosphor blend, when coated on a lamp, provides a lamp that exhibits high color rendering index (CRI), of at least 87, while simultaneously achieving low CCT, of less than about 4500K, i.e. of between about 3000K and 4500K. The phosphor system provided includes a non-rare earth strontium red broad band phosphor, a non-rare earth blue broad band halophosphor, and a rare earth-doped green-blue emitting phosphor, more specifically, a combination of SAR and blue-halo non-rare earth phosphors, and less than 20 wt % BAMn phosphor, based on the total weight of the phosphor system. | 03-28-2013 |
| 20130099656 | FLUORESCENT LAMP WITH MULTI-LAYER PHOSPHOR COATING - A low-pressure discharge lamp includes, in an exemplary embodiment, a light-transmissive envelope, a fill-gas composition capable of sustaining a discharge sealed inside the light-transmissive envelope, and a phosphor composition at least partially disposed on an interior surface of the light-transmissive envelope. The phosphor composition is disposed on an interior surface of the light-transmissive envelope in a plurality of layers that include at least a basecoat phosphor layer and a topcoat phosphor layer. The basecoat phosphor layer includes at least one halophosphor and the topcoat phosphor layer includes a blend of at least two rare earth phosphors. The basecoat phosphor layer has a greater Color Rendering Index (CRI) value than the topcoat phosphor layer. | 04-25-2013 |
| 20130134862 | FLUORESCENT LAMP HAVING HIGH CRI - A fluorescent lamp is provided including a five phosphor blend comprising four rare earth phosphors, including BAMn, and a non-rare earth white halophosphate phosphor. This phosphor blend provides a lamp that exhibits high color rendering index (CRI), of at least about 85, i.e. at least 87, while simultaneously achieving good lumen output, or lumens per watt (LPW), of at least about 70, i.e. at least 75, at all CCTs, and particularly at lower CCT of between about 3000K and 4100K. The phosphor system provided includes a rare earth-doped red emitting phosphor, a rare earth-doped blue emitting phosphor, a rare earth-doped green-blue emitting phosphor, a rare earth-doped green emitting phosphor and a non-rare earth white halophosphate phosphor. | 05-30-2013 |
| 20130134863 | PHOSPHOR BLENDS FOR FLUORESCENT LAMPS - A phosphor blend suitable for use in a fluorescent lamp for emitting white light is disclosed. The phosphor blend includes a first phosphor, a second phosphor and a third phosphor. The first phosphor is selected from a europium doped barium magnesium aluminate, a europium doped strontium aluminate, and a combination thereof; and the second phosphor has formula Y | 05-30-2013 |
| 20130140978 | PHOSPHOR SYSTEM FOR IMPROVED EFFICACY LIGHTING SOURCES - Mercury vapor discharge fluorescent lamps are provided. The lamp can include a lamp envelope enclosing a discharge space and having an inner surface. First and second electrodes can be positioned on the lamp, such as on opposite ends of the lamp envelope. An ionizable medium that includes mercury and an inert gas can be within said lamp envelope. A phosphor layer can be on the inner surface of the lamp envelope. The phosphor layer generally includes a phosphor blend of a calcium halophosphor, a blue phosphor having an emission peak at about 440 nm to about 490 nm, a blue-green phosphor having an emission peak at about 475 nm to about 530 nm, and a red phosphor having an emission peak at about 600 nm to about 650 nm. | 06-06-2013 |
| 20130140979 | PLASMA TUBE ARRAY-TYPE DISPLAY DEVICE - A plasma tube array-type display device has an improved high resolution and sufficient brightness. In the plasma tube array-type display device comprising a plasma tube array that includes a plurality of plasma tubes | 06-06-2013 |
| 20130193835 | FLUORESCENT LAMP WITH COATED PHOSPHOR PARTICLES - This disclosure features fluorescent lamps that include a phosphor layer including at least one phosphor, which in the past has not been commercially usable in lamps or in some cases suffers from performance problems such as poor brightness. These problems of the phosphors were caused, for example, by mercury ion bombardment or exposure to 185 nm radiation from the discharge. These problems are expected to be avoided by coating particles of one or more of the phosphors, such as using atomic layer deposition in which the coating is not more than 500 nm in thickness. Examples of phosphors that can be coated are yttrium vanadate activated with europium or yttrium vanadate phosphate activated with europium. The coating can be selected from the group consisting of alumina, yttria, lanthanum oxide, magnesium aluminate spinel, magnesium oxide and combinations thereof. | 08-01-2013 |
| 20130200775 | PLASMA DISPLAY PANEL - Provided is a high-efficiency plasma display panel having short decay time and high luminance and color purity. The plasma display panel includes a green phosphor layer emitting visible light when excited with vacuum ultraviolet rays, in which the green phosphor layer is formed of a green phosphor containing 30% by weight or more and 60% by weight or less of a phosphor represented by a general formula: dZnO.(2−d)MnO.eSiO | 08-08-2013 |
| 20130234583 | HIGH COLOR RENDERING INDEX FLUORESCENT LAMP WITH MULTI-LAYER PHOSPHOR COATING - Described are methods and apparatus for providing fluorescent lamps having a two-layer phosphor coating that includes a base coating and a top coating that economically provides a high color rendering index (CRI) of at least 87 with improved brightness. In an embodiment, a low-pressure discharge lamp includes a light transmissive envelope having a basecoat phosphor layer disposed on an inner surface, wherein the basecoat phosphor layer includes less than ten percent weight of a rare earth phosphor. Also included is a topcoat phosphor layer on a surface of the base coat phosphor layer that includes a blend of at least red, green, green-blue and blue emitting rare earth phosphors, and a fill gas composition within the light transmissive envelope. | 09-12-2013 |
| 20140084779 | RECYCLABILITY OF FLUORESCENT LAMP PHOSPHORS - Improved recyclability of phosphors in fluorescent lamps is provided. A fluorescent lamp is constructed with phosphor particles having a specific surface area less than a certain predetermined value. During recycling, these phosphor particles are more readily separated from the basing cement used in such fluorescent lamp. A method is also provided by which such phosphors are more readily separated from the basing cement. | 03-27-2014 |
| 20140306598 | FLUORESCENT LAMP WITH HIGH COLOR RENDERING INDEX AND COATING SYSTEMS THEREFOR - A coating system for a fluorescent lamp, and fluorescent lamps provided therewith. The coating system includes a phosphor-containing coating containing a mixture of phosphors that contain less than 10% weight rare earth phosphors. The phosphor-containing coating emits visible light having a color rendering index of at least 87 when excited by UV radiation. | 10-16-2014 |
| 20160064203 | PHOSPHOR-CONTAINING COATING SYSTEMS AND FLUORESCENT LAMPS EQUIPPED THEREWITH - Coating systems suitable for use in generating fluorescent visible light, and lamps provided with such coating systems. The coating systems includes a phosphor-containing coating that contains at least a first phosphor that is predominantly excited by ultraviolet radiation of a first wavelength to emit visible light and absorbs but is less efficiently excited by ultraviolet radiation of a second wavelength. The coating system further includes a second phosphor that absorbs the ultraviolet radiation of the second wavelength and little if any of the ultraviolet radiation of the first wavelength. | 03-03-2016 |
| 20160071718 | FLUORESCENT LIGHTING WITH ALUMINUM NITRIDE PHOSPHORS - A fluorescent lamp includes a glass envelope; at least two electrodes connected to the glass envelope; mercury vapor and an inert gas within the glass envelope; and a phosphor within the glass envelope, wherein the phosphor blend includes aluminum nitride. The phosphor may be a wurtzite (hexagonal) crystalline structure Al | 03-10-2016 |
