Abstract: To provide a phosphor containing a comparatively much red component and having high light emitting efficiency, high brightness and further high durability, the nitride phosphor is represented by the general formula LXMYN((2/3)X+(4/3)Y):R or LXMYOZN((2/3)X+(4/3)Y?(2/3)Z):R (wherein L is at least one or more selected from the Group II Elements consisting of Mg, Ca, Sr, Ba and Zn, M is at least one or more selected from the Group IV Elements in which Si is essential among C, Si and Ge, and R is at least one or more selected from the rare earth elements in which Eu is essential among Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Lu.); contains the another elements.

Abstract: A light emitting device includes a package having a recessed portion defined by a bottom surface and a side surface and a light emitting element mounted on the bottom surface of the recessed portion, in which the package has fibrous fillers, and at least some of the fillers are projected outwards through the side surface and coated with a reflection film made of metal.

Abstract: To provide a phosphor containing a comparatively much red component and having high light emitting efficiency, high brightness and further high durability, the nitride phosphor is represented by the general formula LXMYN((2/3)X+(4/3)Y):R or LXMYOZN((2/3)X+(4/3)Y?(2/3)Z):R (wherein L is at least one or more selected from the Group II Elements consisting of Mg, Ca, Sr, Ba and Zn, M is at least one or more selected from the Group IV Elements in which Si is essential among C, Si and Ge, and R is at least one or more selected from the rare earth elements in which Eu is essential among Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Lu.); contains the another elements.

Abstract: A light emitting device comprises a light emitting element, and a light conversion member including a phosphor material that is capable of absorbing light emitted from the light emitting element at least partially and emitting light in different wavelength. The light emitting device further comprises a heat dissipation member in a side where the light conversion member as viewed from the light emitting element.

Abstract: A light emitting device, comprises a light emitting element, a plurality of electroconductive layers on which said light emitting element is mounted or which are electrically connected to the light emitting element, and a translucent insulating member that seals the light emitting element and has the electroconductive layers as its bottom surface, wherein the electroconductive layers have a protrusion on part of their side faces, and the upper edges of the protrusion is rounded off.

Abstract: A light emitting device is provided, including a light emitting element, a package comprised at least partially of metal on which said light emitting element is mounted, and a resin layer coated on said light emitting element. The light emitting element is eutectic bonded to a metal portion of said package, and the resin layer is formed of a cured product of a silicone composition. The composition includes (i) an organopolysiloxane having an average composition formula (1): R1a(OX)bSiO(4?a?b)/2 ??(1) wherein R1 is an alkyl, alkenyl or aryl group, X is a hydrogen atom, or an alkyl, alkenyl, alkoxyalkyl or acyl group, a is a number from 1.05 to 1.5, b is a number of 0<b<2, and 1.05<a+b<2, and (ii) a condensation catalyst. The device exhibits improved heat resistance and light resistance, and also exhibits improved adhesion to the resins and metal members used.

Abstract: A light emitting device, including a light emitting element, and a resin layer that has been screen printed to coat said light emitting element is provided. The resin layer is formed from a curable silicone resin composition, which includes (i) an organopolysiloxane with a polystyrene equivalent weight average molecular weight of at least 5×103, (ii) a condensation catalyst, (iii) a solvent, and (iv) a finely powdered inorganic filler. The uniformity of the film thickness is excellent, thus resulting in little color irregularities during light emission from the light emitting element.

Abstract: The present invention provides a reliable, long-life phosphor, or the like, which is prevented from darkening due to aging. A light emitting apparatus has a light emitting element and a phosphor layer. The phosphor layer has a phosphor excited by light from the light emitting element, and a binder which binds the phosphor. The binder is hydroxide oxide gel obtained by curing sol of a hydroxide oxide mixed with sol containing at least one metallic element selected from the group consisting of Al, Y, Gd, Lu, Sc, Ga, In, and B. Transmittance of hydroxide oxide in a gel state is higher than the transmittance in the polycrystal state where the sol-gel reaction is proceeded. In addition, the content of hydroxyl group or water of crystallization in the hydroxide oxide is 10% or less by weight.

Abstract: To provide a phosphor containing a comparatively much red component and having high light emitting efficiency, high brightness and further high durability, the nitride phosphor is represented by the general formula LXMYN((2/3)X+(4/3)Y):R or LXMYOZN((2/3)X+(4/3)Y?(2/3)Z):R (wherein L is at least one or more selected from the Group II Elements consisting of Mg, Ca, Sr, Ba and Zn, M is at least one or more selected from the Group IV Elements in which Si is essential among C, Si and Ge, and R is at least one or more selected from the rare earth elements in which Eu is essential among Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Lu.); contains the another elements.

Abstract: The surface of a phosphor is coated with a coating member made of a material different from the phosphor in chemical vapor-phase reaction. The coating member is made of any of metal oxide, metal nitride and metal oxynitride. The coating member coats the surface of the phosphor whereby having a substantially smooth film, or is formed such that a large number of fine particles relatively smaller than the phosphor aggregate to coat the whole surface of the phosphor. The coating member contains at least one metallic element selected from the group consisting of Al, Si, and rare earth elements. In addition, the phosphor is a transparent water-soluble phosphor and is an alkaline-earth silicon-nitride phosphor, an alkaline-earth silicon oxynitride phosphor, or the like. The BET value of the coated phosphor is 1.0 to 10 times the BET value before coating. The average thickness of the coating is 10 nm to 500 nm.

Abstract: The present invention provides a fluorescent material comprising a light-storing first phosphor that at least partially converts energy emitted by an excitation source to a first emission spectrum that is different from the energy, and a second phosphor that at least partially converts the first emission spectrum to a second emission spectrum that is different from the first emission spectrum; a lamp equipped with such a fluorescent material; a light-emitting device that produces a whitish afterglow, comprising such a fluorescent material for converting the emission by an LED chip; and a display unit comprising a display equipped with a plurality of such light-emitting devices.

Abstract: A light emitting device that emits light of various colors by blending lights emitted by two or more kinds of fluorescent materials which are substantially directly excited by the light emitted by an excitation source having principal emission peak in a range from 250 nm to 500 nm. Each of the fluorescent material is of a direct-transition type.

Abstract: This invention presents a gallium nitride phosphor with superior light emitting characteristics, its method of manufacture, and a display device which uses the phosphor. By heat treatment or microwave irradiation of gallium nitride phosphor powder in an ambient containing essentially no H2 or H2O, a phosphor is produced wherein the amount of H2 and H2O gas evolved when heated in a vacuum is less than or equal to 0.2 cm3/g of phosphor and 2.0 cm3/g of phosphor respectively.

Abstract: A gallium nitride phosphor of which the particles are coated with a surface-treating compound that contains at least one of P and Sb.

Abstract: To provide a phosphor containing a comparatively much red component and having high light emitting efficiency, high brightness and further high durability, the nitride phosphor is represented by the general formula LXMYN((2/3)X+(4/3)Y):R or LXMYOZN((2/3)X+(4/3)Y−(2/3)Z):R (wherein L is at least one or more selected from the Group II Elements consisting of Mg, Ca, Sr, Ba and Zn, M is at least one or more selected from the Group IV Elements in which Si is essential among C, Si and Ge, and R is at least one or more selected from the rare earth elements in which Eu is essential among Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Lu.); contains the another elements.

Abstract: This invention presents a gallium nitride phosphor with superior light emitting characteristics, its method of manufacture, and a display device which uses the phosphor. By heat treatment or microwave irradiation of gallium nitride phosphor powder in an ambient containing essentially no H2 or H2O, a phosphor is produced wherein the amount of H2 and H2O gas evolved when heated in a vacuum is less than or equal to 0.2 cm3/g of phosphor and 2.0 cm3/g of phosphor respectively.

Abstract: A gallium nitride phosphor of which the particles are coated with a surface-treating compound that contains at least one of P and Sb.

Abstract: Long decay phosphors are disclosed that are comprised of rare-earth activated divalent titanates. In particular, the long decay phosphors are comprised of(Ca.sub.(1-a-b) Pr.sub.a M.sub.b)O.TiO.sub.2wherein0.00001.ltoreq.a.ltoreq.0.1 and0.0.ltoreq.b.ltoreq.0.3and M is Zn and/or Mg.

Abstract: Long decay phosphors are disclosed that are comprised of rare-earth activated divalent, boron-substituted aluminates. In particular, the long decay phosphors are comprised ofMO.a(Al.sub.1-b B.sub.b).sub.2 O.sub.3 :cR,wherein0.5.ltoreq.a.ltoreq.10.0,0.0001.ltoreq.b.ltoreq.0.5 and0.0001.ltoreq.c.ltoreq.0.2,MO represents at least one divalent metal oxide selected from the group consisting of MgO, CaO, SrO and ZnO and R represents Eu and at least one additional rare earth element. Preferably, R represents Eu and at least one additional rare earth element selected from the group consisting of Pt, Nd, Dy and Tm.