Phosphors include a CaAlSiN.sub.3 family crystal phase, wherein the CaAlSiN.sub.3 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.

Provided is a wavelength conversion member that is less decreased in luminescence intensity with time by irradiation with light of an LED or LD and a light emitting device using the wavelength conversion member. A wavelength conversion member is formed of an inorganic phosphor dispersed in a glass matrix, wherein the glass matrix contains, in % by mole, 30 to 85% SiO.sub.2, 4.3 to 20% B.sub.2O.sub.3, 0 to 25% Al.sub.2O.sub.3, 0 to 3% Li.sub.2O, 0 to 3% Na.sub.2O, 0 to 3% K.sub.2O, 0 to 3% Li.sub.2O+Na.sub.2O+K.sub.2O, 0 to 35% MgO, 0 to 35% CaO, 0 to 35% SrO, 0 to 35% BaO, 0.1 to 45% MgO+CaO+SrO+BaO, and 0 to 5% ZnO, and the inorganic phosphor is at least one selected from the group consisting of an oxide phosphor, a nitride phosphor, an oxynitride phosphor, a chloride phosphor, an oxychloride phosphor, a halide phosphor, an aluminate phosphor, and a halophosphate phosphor.

A light emitting apparatus, including: a substrate; a light emitting diode disposed on the substrate; and a lens covering the light emitting diode. The light emitting diode includes a light emitting diode chip; a first molding portion covering the light emitting diode chip; a second molding portion covering the first molding portion. The first molding portion includes one or more kinds of phosphors and the second molding portion contains no phosphors. The light emitting diode chip is covered by a first molding portion having a high index of refraction and a second molding portion having a low index of refraction and covering the first molding portion in order to reduce total reflection in the molding portions through reduction in difference in index of refraction between external air and the molding portion having a high index of refraction, thereby increasing the quantity of light.

The phosphor of the present invention comprises a crystal phase having a chemical composition represented by the following formula [2], the crystal phase having no garnet structure, and the phosphor having an emission peak in a wavelength range of 600 nm to 650 nm by being activated by at least Mn.sup.4+,
A.sup.2.sub.aiiB.sup.2.sub.biiC.sup.2.sub.ciiD.sup.2.sub.diiX.sup.2.sub.xii  formula [2].

Phosphors include a CaAlSiN.sub.3 family crystal phase, wherein the CaAlSiN.sub.3 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.

An optical converter for producing colored or white light from blue excitation light is provided. The converter has good scattering properties to be able to produce nearly white light from the scattered blue light components and the scattered, converted yellow light components. The optical converter includes material including one or more of a YAG ceramic, a LuAG ceramic, and a magnesium-aluminum ceramic exhibiting strong scattering.

The present invention relates to a phosphor plate comprising: a base plate; and phosphor included in the base plate, and provides a phosphor plate and a method for manufacturing the same, wherein one side of the phosphor plate comprises: a protrusion part formed by protrusion of the phosphor fixed to the base plate; and a recess part formed by separation of the phosphor from the base plate, the protrusion part being 20 to 70% with respect to the area of one side of the phosphor plate.

A luminescent material, a light emitting device, and a display device are disclosed. The luminescent material includes particles and a phosphor. The particles include quantum dots and have an average diameter of 0.06 μm to 30 μm.

To provide a light emitting device that is used for a display that is able to display an image having a wider color gamut. This light emitting device includes: a first light source configured to perform an operation of blinking first emission light including first blue light and first red light; and a second light source configured to perform an operation of blinking second emission light independently of the operation of blinking the first emission light by the first light source. The second emission light includes second red light and green light.

A light emitting device includes a light emitting element, and a fluorescent member including a phosphor. The light emitting device satisfies any of Condition (A): a correlated color temperature of light emission of the light emitting device is within a range of 4500 K or more and 7500 K or less, a content of a first phosphor is within a range of 29 mass % or more and 90 mass % or less, and a melanopic ratio is within a range of 1.0 or more and 1.4 or less; Condition (B): a correlated color temperature of light emission of the light emitting device is within a range of 2500 K or more and less than 4500 K, a content of a first phosphor is within a range of 25 mass % or more and 90 mass % or less, and a melanopic ratio is within a range of 0.7 or more and 1.1 or less; and Condition (C): a correlated color temperature of light emission of the light emitting device is within a range of 2500 K or more and 3000 K or less, a content of a first phosphor is within a range of 20 mass % or more and 90 mass % or less, and a melanopic ratio is within a range of 0.48 or more and 1.10 or less.