Abstract: A package for mounting a light emitting element includes: a first lead electrode defining a portion of a bottom of a recess and comprising a base member and a plating disposed on the base member, and wherein the first lead electrode comprises, in a plan view: a first region, a second region surrounding a periphery of the first region, wherein, in a height direction, an upper surface of the base member in an entirety of the second region is higher than an upper surface of the base member in the first region, and a third region surrounding at least a portion of a periphery of the second region, wherein, in the height direction, an upper surface of the base member in the third region is lower than the upper surface of the base member in the entirety of the second region; a second lead electrode; and a resin molded body.

Abstract: The near-infrared absorbing glass contains at least, as constituent ions, P ions; Cu ions; O ions; one or more ions selected from the group consisting of Li ions, Na ions and K ions; and one or more ions selected from the group consisting of Mg ions, Ca ions, Sr ions and Ba ions, wherein, in a glass composition expressed in cation %, the content of Cu ions is 15.0 cation % or lower; the content of P ions is 55.0 cation % or lower; and a cation ratio of the total content of Al ions and P ions relative to the total content of Mg ions, Ca ions, Sr ions, Ba ions, Zn ions and Cu ions ((Al ions+P ions)/(Mg ions+Ca ions+Sr ions+Ba ions+Zn ions+Cu ions)) is 5.300 or lower.

Abstract: The near-infrared absorbing glass includes four or more kinds of the prescribed main cations, and includes P ions, Ba ions and Cu ions as essential cations, wherein, in a glass composition expressed in anion %, the content of O ions is 90.0 anion % or more, in a glass composition expressed in atomic %, the ratio of the content of O ions to the content of P ions is 3.15 or less, in a glass composition expressed in mol % based on oxides, the total content of B2O3 and SiO2 is 3.0 mol % or less, the total content of MgO and Al2O3 is 8.0 mol % or less, and the total content of Li2O, Na2O and K2O is 15 mol % or less.

Abstract: A light emitting device includes: a package including a first lead, a second lead, and a molded body; and a light emitting element provided on the second lead. The first lead includes a first electrode terminal having a first thickness in a thickness direction, and a first holding portion connected to the first electrode terminal and having a thickness smaller than the first thickness in the thickness direction, the first holding portion having a front surface and a rear surface opposite to the front surface in the thickness direction. The second lead includes a second electrode terminal facing the first electrode terminal in the thickness direction, and a connection electrically connected to the first lead. The molded body holds the first lead and the second lead and covers the front surface and the rear surface of the first holding portion.

Abstract: The near-infrared absorbing glass, which contains at least four kinds of main cations selected from the group consisting of P ions, Li ions, Cu ions, Al ions, Ba ions, Sr ions, Ca ions, Mg ions, Zn ions, K ions, Na ions, La ions, Gd ions, and Y ions, contains P ions, Li ions, and Cu ions as essential cations, and contains at least O ions as anions, wherein a ratio (O ion/P ion) of a content of O ions relative to a content of P ions is 3.15 or less; in a glass composition indicated by anion %, a content of O ions is 90.0 anion % or more; and in an oxide-based glass composition on a molar basis, a total content of oxides of the main cations is 90.0% or more, and a total content (MgO+Al2O3) of MgO and Al2O3 is 8.0% or less.

Abstract: A light emitting device includes: a package including a first lead, a second lead, and a molded body; and a light emitting element provided on the second lead. The first lead includes a first electrode terminal having a first thickness in a thickness direction, and a first holding portion connected to the first electrode terminal and having a thickness smaller than the first thickness in the thickness direction, the first holding portion having a front surface and a rear surface opposite to the front surface in the thickness direction. The second lead includes a second electrode terminal facing the first electrode terminal in the thickness direction, and a connection electrically connected to the first lead. The molded body holds the first lead and the second lead and covers the front surface and the rear surface of the first holding portion.

Abstract: A wavelength conversion member including a wavelength conversion layer containing a fluoride phosphor, quantum dots, a surfactant, and a resin. The fluoride phosphor contains fluoride particles having a specific composition and having particle size values within specific ranges. The quantum dots include at least one selected from a first crystalline nanoparticle and a second crystalline nanoparticle. The first crystalline nanoparticle has a specific composition. When irradiated with light having a wavelength of 450 nm, the first crystalline nanoparticle emits light having an emission peak at a wavelength in a range from 510 nm to 535 nm, and a full width at half maximum of the emission peak of the first crystalline nanoparticle is in a range from 10 nm to 30 nm. The second crystalline nanoparticle includes a chalcopyrite-type crystalline structure, and a full width at half maximum of the emission peak of the second crystalline nanoparticle is 45 nm or less.

Abstract: The near-infrared absorbing glass contains at least, as constituent ions, P ions; Cu ions; O ions; one or more ions selected from the group consisting of Li ions, Na ions and K ions; and one or more ions selected from the group consisting of Mg ions, Ca ions, Sr ions and Ba ions, wherein, in a glass composition expressed in cation %, the content of Cu ions is 15.0 cation % or lower; the content of P ions is 55.0 cation % or lower; and a cation ratio of the total content of Al ions and P ions relative to the total content of Mg ions, Ca ions, Sr ions, Ba ions, Zn ions and Cu ions ((Al ions+P ions)/(Mg ions+Ca ions+Sr ions+Ba ions+Zn ions+Cu ions)) is 5.300 or lower.

Abstract: A package includes a first lead including a first electrode terminal, a second lead including a second electrode terminal, a first molded body holding the first lead, and a second molded body holding the second lead. The second lead is provided on the first lead in an overlapping direction such that the first electrode terminal of the first lead overlaps with the second electrode terminal of the second lead when viewed in the overlapping direction. The first electrode terminal and the second electrode terminal are electrically connected to each other without adding additional material. A part of the first molded body and a part of the second molded body are in contact with each other.

Abstract: A fluoride phosphor, comprising fluoride particles having an average particle size of 0.1 ?m to 7 ?m and a maximum particle size of 1 ?m to 18 ?m, wherein a ratio of the maximum particle size with respect to the average particle size is higher than 1. The fluoride particles have a composition containing an element M containing at least one selected from the group consisting of Group 4 elements, Group 13 elements, and Group 14 elements; an alkali metal; Mn; and F. In the composition, when the number of moles of the alkali metal is 2, the number of moles of Mn is more than 0 but less than 0.2, the number of moles of the element M is more than 0.8 but less than 1, and the number of moles of F is more than 5 but less than 7.

Abstract: A wavelength conversion member including a wavelength conversion layer containing a fluoride phosphor, quantum dots, a surfactant, and a resin. The fluoride phosphor contains fluoride particles having a specific composition and having particle size values within specific ranges. The quantum dots include at least one selected from a first crystalline nanoparticle and a second crystalline nanoparticle. The first crystalline nanoparticle has a specific composition. When irradiated with light having a wavelength of 450 nm, the first crystalline nanoparticle emits light having an emission peak at a wavelength in a range from 510 nm to 535 nm, and a full width at half maximum of the emission peak of the first crystalline nanoparticle is in a range from 10 nm to 30 nm. The second crystalline nanoparticle includes a chalcopyrite-type crystalline structure, and a full width at half maximum of the emission peak of the second crystalline nanoparticle is 45 nm or less.

Abstract: Each of a plurality of light emitting elements has a hexagonal shape with a center. An interior angle at each of corners is less than 180°. The plurality of light emitting elements include a first light emitting element having a first lateral side surface and a second light emitting element having a second lateral side surface. An orientation of the hexagonal shape of the second light emitting element is rotated by 30 degrees plus 30°+60°×N (N is an integer) with respect to the center of the second light emitting element relative to an orientation of the hexagonal shape of the first light emitting element such that the second lateral side surface is not parallel to the first lateral side surface.

Abstract: A package for mounting a light emitting element includes: a first lead electrode defining a portion of a bottom of a recess and comprising a base member and a plating disposed on the base member, and wherein the first lead electrode comprises, in a plan view: a first region, a second region surrounding a periphery of the first region, wherein, in a height direction, an upper surface of the base member in an entirety of the second region is higher than an upper surface of the base member in the first region, and a third region surrounding at least a portion of a periphery of the second region, wherein, in the height direction, an upper surface of the base member in the third region is lower than the upper surface of the base member in the entirety of the second region; a second lead electrode; and a resin molded body.

Abstract: A package for mounting a light emitting element includes: a first lead electrode having, in a plan view, a first region, a second region surrounding a periphery of the first region having a width of 110 ?m or more and a thickness greater than that of the first region, and a third region partially surrounding a periphery of the second region and having a thickness smaller than that of the second region; a second lead electrode spaced apart from the first lead electrode; and a resin molded body fixing a portion of each of the first and second lead electrodes. A portion of each of the first and second lead electrodes and a portion of the resin molded body exposed therebetween form a bottom surface of a recess.

Abstract: A package includes a first lead including a first electrode terminal, a second lead including a second electrode terminal, a first molded body holding the first lead, and a second molded body holding the second lead. The second lead is provided on the first lead in an overlapping direction such that the first electrode terminal of the first lead overlaps with the second electrode terminal of the second lead when viewed in the overlapping direction. The first electrode terminal and the second electrode terminal are electrically connected to each other without adding additional material. A part of the first molded body and a part of the second molded body are in contact with each other.

Abstract: A package includes a first lead and a second lead. The first lead includes a first part and a second part connected to the first part. The second lead includes a third part and a fourth part connected to the third part. A molded body having a front surface and rear surface opposite to the front surface. The first part has a first terminal exposed from the rear surface. The first terminal is provided within an outer peripheral edge of the rear surface. The third part has a second terminal exposed from the rear surface. The second terminal is provided within the outer peripheral edge. The first lead or the second lead has a heat releasing terminal exposed from the rear surface. The heat releasing terminal is disposed between the first terminal and the second terminal to be spaced apart from the first terminal and the second terminal.

Abstract: A package includes a first lead including a first electrode terminal, and a second lead including a second electrode terminal and provided on the first lead in an overlapping direction such that the first electrode terminal of the first lead overlaps with the second electrode terminal of the second lead when viewed in the overlapping direction. The first electrode terminal and the second electrode terminal are electrically connected to each other without adding additional material.

Abstract: A package includes a first lead, a first molded body, a second lead, and a second molded body. The first lead includes a first portion which has a first recess portion or a first through hole passing through the first portion. The second lead is provided on the first lead to be bonded to the first lead such that a bonding side surface faces to the first lead. The second lead includes a second portion which overlaps with the first portion and which has a second recess portion on the bonding side surface or a second through hole passing through the second portion. The second recess portion communicates with the first through hole. The second through hole communicates with the first recess portion. The second molded body fills the first through hole and the second recess portion, or fills the first recess portion and the second through hole.

Abstract: Each of a plurality of light emitting elements has a hexagonal shape with a center. An interior angle at each of corners is less than 180°. The plurality of light emitting elements include a first light emitting element having a first lateral side surface and a second light emitting element having a second lateral side surface. An orientation of the hexagonal shape of the second light emitting element is rotated by 30 degrees plus 30°+60°×N (N is an integer) with respect to the center of the second light emitting element relative to an orientation of the hexagonal shape of the first light emitting element such that the second lateral side surface is not parallel to the first lateral side surface.

Abstract: Each of a plurality of light emitting elements has a polygonal shape with five or more corners. An interior angle at each of the corners is less than 180°. The plurality of light emitting elements include a first light emitting element having a first bottom surface, a first top surface opposite to the first bottom surface, and a first lateral side surface between the first bottom surface and the first top surface. The second light emitting element has a second bottom surface, a second top surface opposite to the second bottom surface, and a second lateral side surface between the second bottom surface and the second top surface. The second lateral side surface is provided not to oppose to the first lateral side surface in substantially parallel.