Patent application number | Description | Published |
20080197321 | Phosphor, its Production Method, and Light Emitting Apparatus - An object of the present invention is to provide an inorganic phosphor, particularly, an oxynitride phosphor containing alkaline earths which has a higher luminance than that of conventional sialon phosphors activated with a rare earth, and is chemically stable. | 08-21-2008 |
20080303409 | Phosphor and Light Emitting Instrument - The present invention aims at providing a chemically stabilized inorganic phosphor which emits orange light or red light at wavelengths longer than the conventional rare-earth activated sialon phosphor and which has a higher luminance. | 12-11-2008 |
20090050845 | BETA TYPE SIALON FLUORESCENT SUBSTANCE - A β type Sialon fluorescent substance is disclosed that is capable of achieving enhanced brightness of a white light emitting diode using blue to ultraviolet light as a light source. In the fluorescent substance which contains not less than 90% by mass of a β type Sialon composition represented by general formula: Si | 02-26-2009 |
20090066230 | PHOSPHOR AND USE THEREOF - A phosphor which emits light having high brightness, serves as an excellent orange or red phosphor whose light brightness is less decreased when exposed to an excitation source contains a crystal phase having the chemical composition expressed by the general formula [1]: | 03-12-2009 |
20090085465 | FLUOROPHOR AND METHOD FOR PRODUCTION THEREOF AND ILLUMINATOR - A fluorophor comprising, as a main component, an α-type sialon crystal which contains at least an A element (wherein A represents one or more elements selected from among Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Er, Tm and Yb), an M element (wherein M represents one or more elements selected from among Li, Na, Mg, Ca, Y, La, Gd and Lu), Si, Al, oxygen and nitrogen, and is represented by the general formulae: (M | 04-02-2009 |
20090091237 | FLUOROPHOR AND METHOD FOR PRODUCTION THEREOF AND ILLUMINATOR - A fluorophor which comprises as a main component, an α type sialon crystal containing at least Li, A element (wherein A represents one or more elements selected from among Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Er, Tm and Yb), M element (wherein M represents one or more metal elements except Li and the A element), Si, Al, oxygen and nitrogen. The fluorophor has an a type sialon crystal structure which is represented by the general formulae: (Li | 04-09-2009 |
20090121608 | PHOSPHOR, METHOD FOR PRODUCING SAME, AND LIGHT-EMITTING DEVICE - Disclosed are violet, blue, and green phosphors having excellent durability and high luminance. Specifically disclosed is a phosphor which contains a metal element M (M is at least one element selected from among Mn, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Tm and Yb) for constituting a metal ion, which is solid-solubilized in an AlON crystal, an AlON solid solution crystal or an inorganic crystal having the same crystal structure as AlON. The phosphor is capable of emitting fluorescence having a peak in the wavelength range from 300 nm to 700 nm. Also disclosed is a method for producing such a phosphor. Further disclosed are an illuminating device and an image display each containing such a phosphor. | 05-14-2009 |
20090267482 | PRESSURE REGULATOR - A blue phosphor, which has excellent durability and high brightness, and in particular a blue phosphor in a powder state, which can realize high-brightness luminescence upon exposure to an electron beam, are provided. The phosphor being characterized by comprising at least europium incorporated as a solid solution into an inorganic crystal having a crystal structure of an AlN crystal or an AlN solid solution crystal, wherein the phosphor emits divalent europium-derived fluorescence having a peak at a wavelength in the range of 430 nm to 500 nm upon exposure to an excitation source, is provided. In this case, it is more preferable that a predetermined metal element and silicon are incorporated therein. And a manufacturing method to manufacture such phosphor is also provided. Further, a lighting device comprising such blue phosphor is provided. | 10-29-2009 |
20100039020 | FLUORESCENT MATERIAL, PROCESS FOR PRODUCING THE SAME, AND LUMINESCENT DEVICE - A blue fluorescent material having excellent durability and a high luminance, especially one emitting a high-luminance light by the action of electron rays. The fluorescent material comprises inorganic crystals having a crystal structure which is an AlN crystalline, AlN polycrystalline, or AlN solid-solution crystalline structure. It is characterized in that the inorganic crystals contain at least europium in solution and have an oxygen content of 0.4 mass % or lower and that the fluorescent material emits fluorescence derived from divalent europium ions upon irradiation with an excitation source. More preferably, the fluorescent material contains a given metallic element and silicon. Also provided are a process for producing the fluorescent material and an illuminator including the blue fluorescent material. | 02-18-2010 |
20100072498 | Lithium-containing sialon phosphor and method of manufactring the same - According to the invention, a highly crystalline α-sialon is synthesized to emit highly intense light and a white LED showing an excellent color rendering characteristic is provided by shifting emitted light to the short wavelength side (blue shift). Such an α-sialon is designed so as to be expressed by general formula (Li | 03-25-2010 |
20110121234 | PHOSPHOR, PROCESS FOR PRODUCING THE SAME, AND LUMINESCENT DEVICE - A green phosphor for emitting light, a spectrum of which is sharp, in an ultraviolet and visible light region, which has higher green light brightness than the conventional rare earth-activated sialon phosphor and has higher durability than the conventional oxide phosphor, is provided. The phosphor being characterized in that Al and a metal element M (here, M is Eu) are incorporated into a crystal of a nitride or oxynitride having a βSi | 05-26-2011 |
20120019127 | PHOSPHOR, METHOD FOR PRODUCING SAME, LIGHT-EMITTING DEVICE, AND IMAGE DISPLAY APPARATUS - A phosphor comprising a CaAlSiN | 01-26-2012 |
20120176568 | PHOSPHOR, PROCESS FOR PRODUCING THE SAME, AND LUMINESCENT DEVICE - A green phosphor for emitting light, a spectrum of which is sharp, in an ultraviolet and visible light region, which has higher green light brightness than the conventional rare earth-activated sialon phosphor and has higher durability than the conventional oxide phosphor, is provided. The phosphor being characterized in that Al and a metal element M (here, M is Eu) are incorporated into a crystal of a nitride or oxynitride having a β-type Si | 07-12-2012 |
20130147341 | Phosphor, Lighting Fixture, and Image Display Device - A phosphor substituting the conventional sialon phosphor or oxide phosphor activated by rare earth and an application thereof are provided. The phosphor of the present invention comprises an inorganic crystal including at least La, Si, Al, N (nitrogen), M element (M is at least one kind of element selected from the group consisting of Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb), and O (oxygen) if necessary and the inorganic crystal is a host crystal, which is LaSi | 06-13-2013 |
20130168606 | PHOSPHOR AND LIGHT-EMITTING EQUIPMENT USING PHOSPHOR - Phosphors include a CaAlSiN | 07-04-2013 |
20130207535 | Phosphor, Manufacture Thereof, Light-Emitting Device, and Image Display Device - Provided is a chemically-thermally stable phosphor having different emission characteristics from the conventional and exhibiting high emission intensity with an LED of 470 nm or less. A phosphor of the present invention includes A, D, E, and X elements (A is one or more kinds selected from Mg, Ca, Sr and Ba; D is one or more kinds selected from Si, Ge, Sn, Ti, Zr and Hf; E is one or more kinds selected from B, Al, Ga, In, Sc, Y and La; and X is one or more kinds selected from O, N and F), and an inorganic crystal of a crystal designated by Sr | 08-15-2013 |
20130207538 | Phosphor, Manufacture Thereof; Light-Emitting Device, and Image Display Device Utilizing Phosphor - Provided is a chemically and thermally stable phosphor having different emission characteristics than the conventional phosphor and exhibiting high emission intensity if combined with an LED of 470 nm or less. The phosphor of the present invention is represented by a composition formula: M | 08-15-2013 |
20130306911 | Method of Producing Fluorescent Material Dispersed Glass and Fluorescent Material Dispersed Glass - A method of manufacturing fluorescent material-dispersed glass, comprising: performing production of a fluorescent material-dispersed gel utilizing sol-gel reaction and acid-base reaction by preparing a fluorescent material-dispersed sol containing silicon alkoxide, metal chloride and/or metal aklkoxide, and fluorescent material, and subsequently gelling the fluorescent material-dispersed sol; and performing production of a fluorescent material-dispersed glass by heating the fluorescent material-dispersed gel. | 11-21-2013 |