Abstract: The present invention is a phosphor expressed by the general formula (A1?xRxM2X)m(M2X4)n (wherein the element A is one or more types of element selected from Li, Na, Be, Mg, Ca, Sr, Ba, Sc, Y, La, Gd, and Lu, the element R is one or more types of activating agent selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb, the element M is one or more types of element selected from Si, Ge, Sn, Ti, Hf, Zr, Be, B, Al, Ga, In, Tl, and Zn, the element X is one or more types of element selected from oxygen and nitrogen, n and m are integers of 1 or more, and x is a real number defined by 0<x<1), as well as a manufacturing method for the same, and a light-emitting device that uses this phosphor.

Abstract: Disclosed is a light-emitting device that exhibits good color rendering and highly efficiently emits white light in an incandescent bulb color range. The semiconductor light-emitting device (1) of the present invention includes: a semiconductor light-emitting element (2) that emits blue light; a green phosphor (14) that absorbs the blue light and emits green light; and an orange phosphor (13) that absorbs the blue light and emits orange light. The orange phosphor (13) produces an emission spectrum having a peak at a wavelength of equal to or greater than 590 nm but equal to or less than 630 nm and having a full width at half maximum of 130 nm or greater at the peak, the full width at half maximum of the emission spectrum of the orange phosphor (13) being broader than a full width at half maximum of an emission spectrum of the green phosphor (14). The orange phosphor (13) exhibits an absorptance having a peak wavelength of 420 nm or greater. ABS(530) and ABS(MAX) satisfy a relation, ABS(530)/ABS(MAX)<0.

Abstract: A phosphor with a high light-emitting intensity and indicated by general formula MeaRebSicAldNeOf. Me has Sr as an essential element thereof and can include one or more types of CC element selected from Na, Li, Mg, Ca, Ba, Sc, Y, and La. Re has Eu as an essential element thereof and can include one or more types of element selected from Mn, Ce, Tb, Yb, and Sm. When composition ratios a, b, c, d, e, and f fulfill a=1?x, b=x, c=(2+2p)×(1?y), d=(2+2p)×y, e=(1+4p)×(1?z), and f=(1+4p)×z, parameters p, x, y, and z fulfill the following: 1.630<p<1.650, 0.005<x<0.300, 0.180<y<0.220, and 0.060<z<0.100. A light-emitting device with high luminance is provided by using this phosphor.

Abstract: A phosphor indicated by general formula MeaRebSicAldNeOf. In the formula: Me has Sr as an essential element thereof and can include one or more types of element selected from Na, Li, Mg, Ca, Ba, Sc, Y, and La; and Re has Eu as an essential element thereof and can include one or more types of element selected from Mn, Ce, Tb, Yb, and Sm. In addition, when a=1?x, b=x, c=(2+2p)×(1?y), d=(2?2p)×y, e=(1+4p)×(1?z), and f=(1+4p)×z, parameters p, x, y, and z fulfill the following: 1.620<p<1.635, 0.005<x<0.300, 0.200<y<0.250, and 0.070<z<0.110. A light-emitting device with high luminance is provided by using this phosphor.

Abstract: A method for providing a phosphor, including a kneading step in which a raw material is kneaded to provide a raw material mixture; a sintering step in which the raw material mixture is sintered; and a heat treatment step in which the sintered raw material mixture is heat-treated, wherein the raw material includes at least one or more M-containing materials selected from MSi2, MSiN2, M2Si5N8, M3Al2N4 and MSi6N8, wherein M is one or more divalent elements selected from M(0) and M(1).

Abstract: 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.

Abstract: There is realized a light-emitting device that emits, with high efficiency, white light with excellent color rendering index. A light-emitting device (1) of the present invention is a light-emitting device (1) for emitting white light, including at least a light-emitting element (2) for emitting blue light, an orange fluorescent material (13) which absorbs the blue light so as to emit orange light, and a green fluorescent material (14) which absorbs the blue light so as to emit green light, the orange fluorescent material (13) being a Ce-activated CaAlSiN3 fluorescent material in a solid solution crystal form in which Ce and oxygen are dissolved in a crystal having a composition of cCaAlSiN3·(1?c)LiSi2N3 where 0.2?c?0.8, and the orange fluorescent material (13) containing 2 weight % or more of Ce.

Abstract: An illumination device for a display device, which is formed from a substrate and a plurality of white light-emitting devices disposed on top of the substrate, and can be used as a backlight for a liquid crystal display panel, wherein the white light-emitting devices have a light source and a phosphor that is excited by the light source and emits light, and a fluorescent material with a composition represented by a general formula: M(0)aM(1)bM(2)x?(vm+n)M(3)(vm+n)?yOnNz?n is used as the phosphor.

Abstract: The present invention provides a fluorescent substance exhibiting higher brightness as compared to conventional fluorescent substances, a method for producing the same, and a light-emitting device using such a fluorescent substance. Specifically, the fluorescent substance comprises an ?-sialon crystal structure having the same crystal structure with an ?-type silicon nitride crystal, which includes at least an M(0) element (where M(0) represents one or two elements selected from Sr and La), an M(1) element (where M(1) represents one or more elements selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm and Yb), Si, Al, and nitrogen.

Abstract: 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 Sr1Si3Al2O4N4, another inorganic crystal having the same crystal structure as Sr1Si3Al2O4N4, or a solid-solution crystal thereof, wherein M (one or more kinds of elements selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, and Yb) is solid-solved.

Abstract: There is realized a light-emitting device that emits, with high efficiency, white light with excellent color rendering index in a lamp color region. A light-emitting device (1) of the present invention is a light-emitting device (1) for emitting white light in a lamp color region, including at least a light-emitting element (2) for emitting blue light, an orange fluorescent material (13) which absorbs the blue light so as to emit orange light, and a red fluorescent material (14) which absorbs the blue light so as to emit red light, the orange fluorescent material (13) being a Ce-activated CaAlSiN3 fluorescent material in a solid solution crystal form in which Ce and oxygen are dissolved in a crystal having a composition of cCaAlSiN3.(1?c)LiSi2N3 where 0.2?c?0.8.

Abstract: 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: MdAeDfEgXh (d+e+f+g+h=1; M is one or more kinds of elements selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, and Yb; A is one or more kinds of elements selected from Mg, Ca, Sr, and Ba; D is one or more kinds of elements selected from Si, Ge, Sn, Ti, Zr, and Hf; E is one or more kinds of elements selected from B, Al, Ga, In, Sc, Y, and La; and X is one or more kinds of elements selected from O, N, and F) and parameters d, e, f, g, and h satisfy the predetermined condition.

Abstract: An incandescent lamp color light emitting diode lamp comprises a semiconductor blue light emitting diode chip having a center emission wavelength in a range of from 400 nm to 480 nm and a phosphor that absorbs light emitted from the diode chip to emit light having a different wavelength than the light emitted from the diode chip. The phosphor is represented by a general formula of Mp(Si, Al)12(O, N)16:Eu2+q. The main phase is an ?-SiAlON phosphor having an ? SiAlON structure, wherein M is at least one element of Ca, Y, Mg, Li, Sc, Pr, Nd, Pm, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Sr and p is from 0.75 to 1.0; and q is between 0.02 and 0.09. The diode lamp emits light having an emission color produced by a mixture of the light emitted from the semiconductor blue light emitting and the light emitted from the ?-SiAlON. The chromaticity range thereof falls within the range defined by chromaticity coordinates (x, y) of (0.4775, 0.4283), (0.4594, 0.3971), (0.4348, 0.4185), and (0.4214, 0.

Abstract: Phosphors include a CaAlSiN3 family crystal phase, wherein the CaAlSiN3 family crystal phase comprises at least one element selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb.

Abstract: 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 LaSi9Al19N32 crystal or a solid-solution crystal thereof, activated by the M element.

Abstract: A light emitting element includes a light-emitting source for emitting light at a wavelength of 330 to 500 nm and a constituent phosphor. The constituent phosphor includes a compound including M, A, Al, O, and N, where M is at least one kind of element selected from Mn, Ce, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb, and A is at least one kind of element selected from C, Si, Ge, Sn, B, Ga, In, Mg, Ca, Sr, Ba, Sc, Y, La, Gd, Lu, Ti, Zr, Hf, Ta, and W.

Abstract: An object of the present invention is to provide an inorganic phosphor having fluorescence properties emitting an orange or red light which has a longer wavelength as compared with the cases of conventional sialon phosphors activated with a rare earth. The invention relates to a design of white light-emitting diode rich in a red component and having good color-rendering properties by employing a solid solution crystal phase phosphor which uses as a host crystal an inorganic compound having the same crystal structure as that of a CaSiAlN3 crystal phase and to which M (wherein M is one or two or more elements selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb) is added as an emission center.

Abstract: The invention is a phosphor which includes a phosphor material having a composition represented by a general formula: M(0)aM(1)bM(2)x?(vm+n)M(3)(vm+n)?yOnNz?n, wherein M(0) is one or more elements selected from Li, Na, Be, Mg, Ca, Sr, Ba, Sc, Y, La, Gd and Lu; M(1) is one or more activators selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm and Yb; M(2) is one or more elements selected from Si, Ge, Sn, Ti, Hf and Zr; M(3) is one or more elements selected from Be, B, Al, Ga, In, Tl and Zn; O is oxygen; N is nitrogen; and an atomic ratio of M(0), M(1), M(2), M(3), O and N is adjusted to satisfy the following: x, y and z satisfy 33?x?51, 8?y?12 and 36?z?56; a and b satisfy 3?a+b?7 and 0.001?b?1.2; m and n satisfy 0.8·me?m?1.2·me and 0?n?7 in which me=a+b; and v satisfies v={a·v(0)+b·v(1)}/(a+b) (wherein v(0) is a valence of M(0) ion and v(1) is a valence of M(1) ion). The invention also relates to a method for producing the phosphor and a light-emitting device using the phosphor.

Abstract: An oxynitride fluorescent material includes a JEM phase as a mother crystal and a luminescence center element Ce. The oxynitride fluorescent material has a fluorescence spectrum with a maximum emission wavelength of 420 nm to 500 nm inclusive and an excitation spectrum with a maximum excitation wavelength of 250 nm to 400 nm inclusive.

Abstract: Disclosed is a light-emitting device that exhibits good color rendering and highly efficiently emits white light in an incandescent bulb color range. The semiconductor light-emitting device (1) of the present invention includes: a semiconductor light-emitting element (2) that emits blue light; a green phosphor (14) that absorbs the blue light and emits green light; and an orange phosphor (13) that absorbs the blue light and emits orange light. The orange phosphor (13) produces an emission spectrum having a peak at a wavelength of equal to or greater than 590 nm but equal to or less than 630 nm and having a full width at half maximum of 130 nm or greater at the peak, the full width at half maximum of the emission spectrum of the orange phosphor (13) being broader than a full width at half maximum of an emission spectrum of the green phosphor (14). The orange phosphor (13) exhibits an absorptance having a peak wavelength of 420 nm or greater. ABS(530) and ABS(MAX) satisfy a relation, ABS(530)/ABS(MAX)<0.