Abstract: A SiC single crystal is produced by impregnating a molten alloy of silicon and a metallic element M that increases carbon solubility into a SiC sintered body to form a SiC crucible, placing silicon and M in the crucible and heating the crucible to melt the silicon and M and form a Si—C solution, dissolving silicon and carbon in the solution from surfaces of the crucible in contact with the solution, contacting a SiC seed crystal with the top of the solution to grow a first SiC single crystal on the SiC seed crystal by a solution process, and bulk growing a second SiC single crystal on a face of the solution-grown first SiC single crystal by a sublimation or gas process. This method enables a low-dislocation, high-quality SiC single crystal to be produced by a vapor phase process.

Abstract: Provided is a wavelength conversion member in which the following are dispersed in a thermoplastic resin: a LuYAG fluorescent material that is represented by (Y1-?-?Lu?Ce?)3Al5O12 (in which ? is a positive number between 0.3-0.8 inclusive and ? is a positive number between 0.01-0.05 inclusive), that emits yellow-green light as a result of excitation by blue light, and that has a diffraction peak within a range in which the diffraction angle 2? in X-ray diffraction by the K?1 line of Cu is 52.9° to 53.2° inclusive; and a KSF fluorescent material that is represented by K2(Si1-xMnx)F6 (in which x is a positive number between 0.001 and 0.3 inclusive) and that emits red light as a result of excitation by blue light. The content of the KSF fluorescent material in the wavelength conversion member is 1 to 5 times the content of the LuYAG fluorescent material by mass ratio.

Abstract: A turn signal for a vehicle has a blue LED as a light source, and an outer cover irradiated by the blue light. The outer cover includes a molded body of a polymeric material including phosphors dispersed therein that absorb blue light and emit light. By means of the present invention, it is possible to provide a turn signal for vehicles which has improved visibility and which imparts excellent visibility and sufficient luminous intensity over a wide angle. Further, because the entire outer cover surface-emits light, uniformity of luminous intensity is ensured without subjecting the outer cover to light scattering treatment, enabling as a result preventing glare caused by light scattering treatment, making this turn signal safe without being unpleasant for pedestrians and drivers of nearby vehicles. Furthermore, because no complex optical design is necessary, this turn signal saves space and can be arranged in a vehicle.

Abstract: Disclosed is an adjustment component that: includes a complex fluoride fluorophore represented by A2(M1-xMnx)F6 (in the formula: M is one or two or more of type of tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn; A is one or two or more of type of alkali metal selected from Li, Na, K, Rb, and Cs and including at least Na and/or K; and x is from 0.001 to 0.3); and adjusts the chromaticity and/or color rendering index of illumination light by absorbing light having a wavelength of from 420 nm to 490 nm inclusive, and emitting light including a red wavelength component.

Abstract: This lighting apparatus is provided with a blue LED chip having a maximum peak at a wavelength of 420-480 nm and a fluorescent material-containing resin layer disposed on the front of the blue LED chip in the light emission direction. The fluorescent material-containing resin layer is obtained by mixing and dispersing a LuAg fluorescent material, which is represented by the formula Lu3Al5O12:Ce3+ and in which the Ce activation rate is 2 mol. % or lower relative to Lu, and a double fluoride fluorescent material represented by the formula A2(B1?xMnx)F6 (in the formula, A is at least one type of element selected from among the group consisting of Li, Na, K and Cs, B is at least one type of element selected from among the group consisting of Si, Ti, Nb, Ge and Sn, and x is an integer that falls within the range 0.001?x?0.1) in a resin.

Abstract: A wavelength conversion member which is a resin-molded article made of at least one type of thermoplastic resin selected from polyolefins, polystyrene, styrene copolymers, fluorocarbon resins, acrylic resins, nylons, polyester resins, polycarbonate resins, vinyl chloride resins, and polyether resins. The thermoplastic resin contains less than or equal to 30 mass % of a complex fluoride fluorophore represented by A2(M1-xMnx)F6 (M is at least one type of tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn; A is at least one type of alkali metal selected from Li, Na, K, Rb, and Cs and including at least Na and/or K; and x is from 0.001 to 0.3) and having a particle diameter D50, which is the median diameter at a cumulative volume of 50% in particle size distribution, of from 2 ?m to 200 ?m inclusive. The complex fluoride fluorophore being dispersed in the thermoplasticresin.

Abstract: An outdoor luminaire comprising a blue LED chip having a maximum peak at a wavelength of 420-480 nm and a phosphor layer disposed forward of the LED chip in its emission direction is provided. The phosphor layer comprises a phosphor of the formula: Lu3Al5O12:Ce3+ which is activated with up to 1 mol % of Ce relative to Lu, the phosphor being dispersed in a resin. In scotopic and mesopic vision conditions, the luminaire produces illumination affording brighter lighting, higher visual perception and brightness over a broader area.

Abstract: Provided is a wavelength conversion member in which the following are dispersed in a thermoplastic resin: a LuYAG fluorescent material that is represented by (Y1-?-?Lu?Ce?)3Al5O12 (in which ? is a positive number between 0.3-0.8 inclusive and ? is a positive number between 0.01-0.05 inclusive), that emits yellow-green light as a result of excitation by blue light, and that has a diffraction peak within a range in which the diffraction angle 2? in X-ray diffraction by the K?1 line of Cu is 52.9° to 53.2° inclusive; and a KSF fluorescent material that is represented by K2(Si1-xMnx)F6 (in which x is a positive number between 0.001 and 0.3 inclusive) and that emits red light as a result of excitation by blue light. The content of the KSF fluorescent material in the wavelength conversion member is 1 to 5 times the content of the LuYAG fluorescent material by mass ratio.

Abstract: This LED light source for a vehicle-mounted headlight is provided with: a blue LED that emits blue light having a dominant wavelength of 430-470 nm; and a fluorescent material that is arranged forward in the light emission direction of the blue light and that performs wavelength conversion of the blue light. The main fluorescent material constituting the fluorescent material is a celium-activated lutetium/aluminum/garnet fluorescent material represented by Lu3Al5O12:Ce. The LED light source for a vehicle-mounted headlight emits pseudo-white light that has a color temperature of 6,000 K or less and that is unlikely to decrease in visibility even during bad weather. The LED light source for a vehicle-mounted headlight has characteristics such as a wide lighting range and excellent visibility in the peripheral area of the visual field (the peripheral visual field) and can thus contribute to accident prevention and road traffic safety.

Abstract: Disclosed is a wavelength conversion member which is a resin-molded article having dispersed therein a complex fluoride fluorophore that absorbs light with a blue wavelength component and emits light including a red wavelength component and that is represented by A2(M1?xMnx)F6 (in the formula: M is at least one type of tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn; A is at least one type of alkali metal selected from Li, Na, K, Rb, and Cs and including at least Na and/or K; and x is from 0.001 to 0.3), wherein the hue of the wavelength conversion member when light is not emitted is as follows in CIELAB (CIE 1976): L*=from 40 to 60 inclusive; a*=from 0 to +1 inclusive; and b*=from +2 to +15 inclusive.

Abstract: An outdoor luminaire comprising a blue LED chip having a maximum peak at a wavelength of 420-480 nm and a phosphor layer disposed forward of the LED chip in its emission direction is provided. The phosphor layer comprises a phosphor of the formula: Lu3Al5O12:Ce3+ which is activated with up to 1 mol % of Ce relative to Lu, the phosphor being dispersed in a resin. In scotopic and mesopic vision conditions, the luminaire produces illumination affording brighter lighting, higher visual perception and brightness over a broader area.

Abstract: This lighting apparatus is provided with a blue LED s chip having a maximum peak at a wavelength of 420-480 nm and a fluorescent material-containing resin layer disposed on the front of the blue LED chip in the light emission direction. The fluorescent material-containing resin layer is obtained by mixing and dispersing a LuAg fluorescent material, which is represented by the formula Lu3Al5O12:Ce3+ and in which the Ce activation rate is 2 mol. % or lower relative to Lu, and a double fluoride fluorescent material represented by the formula A2(B1?xMnx)F6 (in the formula, A is at least one type of element selected from among the group consisting of Li, Na, K and Cs, B is at least one type of element selected from among the group consisting of Si, Ti, Nb, Ge and Sn, and x is an integer that falls within the range 0.001?x?0.1) in a resin.

Abstract: A phosphor-containing resin molded body and a wavelength conversion member, in each of which one or more kinds of spherical phosphors represented by (AxByCz)3C5O12 (wherein A represents one or more rare earth elements selected from among Y, Gd and Lu; B represents one or more rare earth elements selected from among Ce, Nd and Tb; C represents Al and/or Ga; and x, y and z respectively represent positive numbers satisfying 0.002?y?0.2, 0<z?2/3 and x+y+z=1) and having an average circularity of 0.3 or less are dispersed in an amount of 0.1-20% by mass; a light emitting device which is provided with the wavelength conversion member; and a resin pellet for phosphor-containing resin molded bodies.

Abstract: A phosphor-containing resin molded body and a wavelength conversion member, in each of which one or more kinds of spherical phosphors represented by (AxByCz)3C5O12 (wherein A represents one or more rare earth elements selected from among Y, Gd and Lu; B represents one or more rare earth elements selected from among Ce, Nd and Tb; C represents Al and/or Ga; and x, y and z respectively represent positive numbers satisfying 0.002?y?0.2, 0<z?2/3 and x+y+z=1) and having an average circularity of 0.3 or less are dispersed in an amount of 0.1-20% by mass; a light emitting device which is provided with the wavelength conversion member; and a resin pellet for phosphor-containing resin molded bodies.

Abstract: A turn signal for a vehicle has a blue LED as a light source, and an outer cover irradiated by the blue light. The outer cover includes a molded body of a polymeric material including phosphors dispersed therein that absorb blue light and emit light. By means of the present invention, it is possible to provide a turn signal for vehicles which has improved visibility and which imparts excellent visibility and sufficient luminous intensity over a wide angle. Further, because the entire outer cover surface-emits light, uniformity of luminous intensity is ensured without subjecting the outer cover to light scattering treatment, enabling as a result preventing glare caused by light scattering treatment, making this turn signal safe without being unpleasant for pedestrians and drivers of nearby vehicles. Furthermore, because no complex optical design is necessary, this turn signal saves space and can be arranged in a vehicle.

Abstract: Disclosed is a wavelength conversion member which is a resin-molded article having dispersed therein a complex fluoride fluorophore that absorbs light with a blue wavelength component and emits light including a red wavelength component and that is represented by A2(M1-xMnx)F6 (in the formula: M is at least one type of tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn; A is at least one type of alkali metal selected from Li, Na, K, Rb, and Cs and including at least Na and/or K; and x is from 0.001 to 0.3), wherein the hue of the wavelength conversion member when light is not emitted is as follows in CIELAB (CIE 1976): L*=from 40 to 60 inclusive; a*=from 0 to +1 inclusive; and b*=from +2 to +15 inclusive.

Abstract: This red lamp including a blue LED as a light source for emitting blue light, and a red light-emitting member illuminated by blue light. The red light-emitting member of the red lamp includes a resin, and a complex fluoride phosphor which is a complex fluoride salt activated by manganese, that absorbs blue light and emits light containing a red component. This high-efficiency red lamp has intense light emission, providing good visibility at both the lamp front surface and the sides of the lamp, and is suitable as a lighting system for vehicle, such as a red taillight, red brake light, or the like.

Abstract: Disclosed is an adjustment component that: includes a complex fluoride fluorophore represented by A2(M1-xMnx)F6 (in the formula: M is one or two or more of type of tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn; A is one or two or more of type of alkali metal selected from Li, Na, K, Rb, and Cs and including at least Na and/or K; and x is from 0.001 to 0.3); and adjusts the chromaticity and/or color rendering index of illumination light by absorbing light having a wavelength of from 420 nm to 490 nm inclusive, and emitting light including a red wavelength component.

Abstract: A blue-light emitting device, or a pseudo-white-light emitting device, including an LED light source that includes, as a light emission component, blue light having a wavelength of from 420 to 490 nm. A color-renderability improvement member including a complex fluoride fluorophore that absorbs blue light and emits red light and that is represented by A2(M1-xMn)F6 (M is at least one type of tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn; A is at least one type of alkali metal selected from Li, Na, K, Rb, and Cs and including at least Na and/or K; and x is from 0.001 to 0.3) is arranged in a location that is outside a region onto which light parallel to the light emission axis of the LED light source is emitted, said region being within a region onto which light is emitted from the LED light source.

Abstract: A wavelength conversion member which is a resin-molded article made of at least one type of thermoplastic resin selected from polyolefins, polystyrene, styrene copolymers, fluorocarbon resins, acrylic resins, nylons, polyester resins, polycarbonate resins, vinyl chloride resins, and polyether resins. The thermoplastic resin contains less than or equal to 30 mass % of a complex fluoride fluorophore represented by A2(M1-xMnx)F6 (M is at least one type of tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn; A is at least one type of alkali metal selected from Li, Na, K, Rb, and Cs and including at least Na and/or K; and x is from 0.001 to 0.3) and having a particle diameter D50, which is the median diameter at a cumulative volume of 50% in particle size distribution, of from 2 ?m to 200 ?m inclusive. The complex fluoride fluorophore being dispersed in the thermoplasticresin.