Abstract: A light emitting device includes a laser light, a wavelength conversion member, a base member and a lid. The wavelength conversion member includes a plurality of projected portions each extending along a first direction on an upper surface side thereof and arranged side by side in a second direction. Each of the plurality of projected portions has a first surface extending along the first direction. The first surface is inclined with respect to a reference surface. The laser light source and the wavelength conversion member are arranged so that an optical axis of first light from the laser light source extends along the second direction when viewed from above and is inclined with respect to the reference surface, and light directly incident to the first surface along a direction parallel to the optical axis of the first light is regularly reflected toward an upward direction.

Abstract: A nitride semiconductor element includes a sapphire substrate including: a main surface extending in a c-plane of the sapphire substrate, and a plurality of projections disposed at the main surface, the plurality of projections including at least one projection having an elongated shape in a plan view; and a nitride semiconductor layer disposed on the main surface of the sapphire substrate. The at least one projection has an outer edge extending in a longitudinal direction of the elongated shape, the outer edge extending in a direction oriented at an angle in a range of ?10° to +10° with respect to an a-plane of the sapphire substrate in the plan view.

Abstract: A method of manufacturing a fluorescent-material-containing member includes: providing a fluorescent member including a fluorescent material, the fluorescent member having a first main surface side including a plurality of projections; disposing a powder of a light-reflective member between the projections of the fluorescent member; obtaining a sintered body by sintering the powder of the light-reflective member, and removing part of the sintered body from at least one of a first main surface side and a second main surface side of the fluorescent member to obtain the fluorescent-material-containing member including a first surface arranged on the first main surface side has and defined by the fluorescent member and the light-reflective member, and a second surface arranged on the second main surface side has and defined by the fluorescent member and the light-reflective member or defined solely by the fluorescent member.

Abstract: A light emitting device includes one or more light emitting elements, a light transmissive member, and a light reflective member. The one or more light emitting elements each includes an upper surface. The light transmissive member has an upper surface and a lower surface. The light reflective member covers surfaces of the light transmissive member and lateral surfaces of the one or more light emitting elements so as to expose the upper surface of the light transmissive member. The upper surface area of the light transmissive member is smaller than a sum of the upper surface areas of the one or more light emitting elements, and the lower surface area of the light transmissive member is larger than a sum of the upper surface areas of the one or more light emitting elements.

Abstract: A semiconductor light-emitting element includes a first semiconductor layer of a first conductive type, a second semiconductor layer of a second conductive type, a light-emitting layer formed between the first semiconductor layer and the second semiconductor layer, a first electrode connected to the first semiconductor layer, and a second electrode connected to the second semiconductor layer. The second electrode includes an ohmic electrode contacting the second semiconductor layer, and a semiconductor electrode made of a semiconductor layer contacting the ohmic electrode.

Abstract: An optical component includes a phosphor member, an optical filter arranged over the phosphor member at a light extraction side of the phosphor member, and a light scattering member arranged on over the optical filter. An excitation spectrum of the phosphor member has a first local maximum wavelength in the visible region and a second local maximum wavelength in the ultraviolet region. The optical filter is configured to reflect a portion of light at the first local maximum wavelength and a portion or all of light at the second local maximum wavelength.

Abstract: A semiconductor light-emitting element includes a first semiconductor layer of a first conductive type, a second semiconductor layer of a second conductive type, a light-emitting layer formed between the first semiconductor layer and the second semiconductor layer, a first electrode connected to the first semiconductor layer, and a second electrode connected to the second semiconductor layer. The second electrode includes an ohmic electrode contacting the second semiconductor layer, and a semiconductor electrode made of a semiconductor layer contacting the ohmic electrode.

Abstract: A semiconductor light emitting device including a substrate, an electrode and a light emitting region is provided. The substrate may have protruding portions formed in a repeating pattern on substantially an entire surface of the substrate while the rest of the surface may be substantially flat. The cross sections of the protruding portions taken along planes orthogonal to the surface of the substrate may be semi-circular in shape. The cross sections of the protruding portions may in alternative be convex in shape. A buffer layer and a GaN layer may be formed on the substrate.

Abstract: A method for manufacturing light distribution members includes: preparing a joined body in which a plurality of transmissive plates are joined with a light shield part being interposed between adjacent ones of the transmissive plates; fixing a light-shielding frame to the joined body so as to surround an outer periphery of the joined body as seen from one direction; and cutting the joined body and the light-shielding frame perpendicularly to a surface of the joined body to which the light-shielding frame is fixed, thereby obtaining a plurality of light distribution members each having a plurality of transmissive pieces.

Abstract: A semiconductor light emitting device including a substrate, an electrode and a light emitting region is provided. The substrate may have protruding portions formed in a repeating pattern on substantially an entire surface of the substrate while the rest of the surface may be substantially flat. The cross sections of the protruding portions taken along planes orthogonal to the surface of the substrate may be semi-circular in shape. The cross sections of the protruding portions may in alternative be convex in shape. A buffer layer and a GaN layer may be formed on the substrate.

Abstract: A semiconductor light-emitting element includes a first semiconductor layer of a first conductive type, a second semiconductor layer of a second conductive type, a light-emitting layer formed between the first semiconductor layer and the second semiconductor layer, a first electrode connected to the first semiconductor layer, and a second electrode connected to the second semiconductor layer. The second electrode includes an ohmic electrode contacting the second semiconductor layer, and a semiconductor electrode made of a semiconductor layer contacting the ohmic electrode.

Abstract: A semiconductor light emitting element includes a first conductive type semiconductor layer, a light emitting layer, and a second conductive type semiconductor layer disposed in this order. The semiconductor light emitting element includes first and second electrodes, a first insulating film and a translucent electrode. The first electrode is provided on the first conductive type semiconductor layer and includes a first pad portion and a first extending portion. The first insulating film covers the first extending portion. The translucent electrode is connected to an upper surface of the second conductive type semiconductor layer and extends over the first insulating film. The second electrode is connected to the translucent electrode at a position on the first insulating film. The second electrode includes a second pad portion and a second extending portion extending along the first extending portion so as to be superimposed over the first extending portion.

Abstract: A nitride semiconductor element includes a sapphire substrate including: a main surface extending in a c-plane of the sapphire substrate, and a plurality of projections disposed at the main surface, the plurality of projections including at least one projection having an elongated shape in a plan view; and a nitride semiconductor layer disposed on the main surface of the sapphire substrate. The at least one projection has an outer edge extending in a longitudinal direction of the elongated shape, the outer edge extending in a direction oriented at an angle in a range of ?10° to +10° with respect to an a-plane of the sapphire substrate in the plan view.

Abstract: A semiconductor light emitting element includes a first conductive type semiconductor layer, a light emitting layer, and a second conductive type semiconductor layer disposed in this order. The semiconductor light emitting element includes first and second electrodes, a first insulating film and a translucent electrode. The first electrode is provided on the first conductive type semiconductor layer and includes a first pad portion and a first extending portion. The first insulating film covers the first extending portion. The translucent electrode is connected to an upper surface of the second conductive type semiconductor layer and extends over the first insulating film. The second electrode is connected to the translucent electrode at a position on the first insulating film. The second electrode includes a second pad portion and a second extending portion extending along the first extending portion so as to be superimposed over the first extending portion.

Abstract: A light emitting apparatus includes at least one light emitting device; a light transparent member that receives incident light emitted from the light emitting device; and a covering member. The light transparent member is a light conversion member that has an externally exposed light emission surface and a side surface contiguous to the light emission surface. The covering member contains a light reflective material, and covers at least the side surface of said light transparent member. A content of said light reflective material is not less than 30 wt %.

Abstract: A semiconductor light emitting element includes a first conductive type semiconductor layer, a light emitting layer, and a second conductive type semiconductor layer disposed in this order. The semiconductor light emitting element includes first and second electrodes, a first insulating film and a translucent electrode. The first electrode is provided on the first conductive type semiconductor layer and includes a first pad portion and a first extending portion. The first insulating film covers the first extending portion. The translucent electrode is connected to an upper surface of the second conductive type semiconductor layer and extends over the first insulating film. The second electrode is connected to the translucent electrode at a position on the first insulating film. The second electrode includes a second pad portion and a second extending portion extending along the first extending portion so as to be superimposed over the first extending portion.

Abstract: A semiconductor light emitting element includes a first conductive type semiconductor layer, a light emitting layer, and a second conductive type semiconductor layer disposed in this order. The semiconductor light emitting element includes first and second electrodes, a first insulating film and a translucent electrode. The first electrode is provided on the first conductive type semiconductor layer and includes a first pad portion and a first extending portion. The first insulating film covers the first extending portion. The translucent electrode is connected to an upper surface of the second conductive type semiconductor layer and extends over the first insulating film. The second electrode is connected to the translucent electrode at a position on the first insulating film. The second electrode includes a second pad portion and a second extending portion extending along the first extending portion so as to be superimposed over the first extending portion.

Abstract: A light emitting device can further improve light extraction efficiency. A method of manufacturing such a light emitting device can also prove advantageous. The light emitting device includes a light emitting element, a light-transmissive member which is disposed on a light extracting surface side of the light emitting element, and a reflecting layer disposed on an element bonding surface of the light transmissive member where the light emitting element is disposed and adjacent to the light emitting element. The light-transmissive member, in a plan view, has a planar dimension greater than the light extracting surface of the light emitting element.

Abstract: A light emitting apparatus and a production method of the apparatus are provided that can emit light with less color unevenness at high luminance. The apparatus includes a light emitting device, a transparent member receiving incident light emitted from the device, and a covering member. The transparent member is formed of an inorganic material light conversion member including an externally exposed emission surface, and a side surface contiguous to the emission surface. The covering member contains a reflective material, and covers at least the side surfaces of the transparent member. Substantially only the emission surface serves as the emission area of the apparatus. It is possible to provide emitted light having excellent directivity and luminance. Emitted light can be easily optically controlled. In the case where each light emitting apparatus is used as a unit light source, the apparatus has high secondary usability.

Abstract: Provided is a method for manufacturing a light emitting device comprising a light emitting element and an optical part, the method comprising the steps of (i) forming a hydroxyl film on a bonding surface of each of the light emitting element and the optical part by an atomic layer deposition, and (ii) bonding the bonding surfaces of the light emitting element and the optical part with each other, each of the bonding surfaces having the hydroxyl film formed thereon, wherein a substep is repeated at least one time in the step (i), in which substep a first raw material gas and a second raw material gas are sequentially supplied onto the bonding surfaces of the light emitting element and the optical part, and wherein the bonding of the bonding surfaces in the step (ii) is performed without a heating treatment.