Abstract: A package includes a base body having a mounting portion for mounting a light-emitting device, a frame-shaped first reflection member attached to the upper surface of the base body, an inner peripheral surface of which is shaped into a first light reflecting surface and surrounds the mounting portion, and a frame-shaped second reflection member attached to the upper surface of the base body, with a spacing secured between an inner peripheral surface of the second reflection member and an outer peripheral surface of the first reflection member, the inner peripheral surface surrounding the first reflection member and having a second light reflecting surface at a location above an upper end of the first reflection member.

Abstract: A light-emitting apparatus with improved dissipation efficiency of heat transmitted to a specific electrode of a light-emitting device is provided. A light-emitting device mounting substrate used for the light emitting apparatus include a base body (1) which mounts thereon a light-emitting device (3); a first electrically conductive path (L1) formed within the base body (1), one end thereof being electrically connected to a first electrode (3a) of the light-emitting device (3) and the other end thereof being led out to a surface of the base body (1); and a second electrically conductive path (L2) formed in the base body (1), one end thereof being electrically connected to a second electrode (3b) of the light-emitting device (3), and the other end thereof being formed on the surface of the base body (1). The first electrically conductive path (L1) is made smaller in thermal resistance than the second electrically conductive path (L2).

Abstract: A package includes a base body having a mounting portion for mounting a light-emitting device, a frame-shaped first reflection member attached to the upper surface of the base body, an inner peripheral surface of which is shaped into a first light reflecting surface and surrounds the mounting portion, and a frame-shaped second reflection member attached to the upper surface of the base body, with a spacing secured between an inner peripheral surface of the second reflection member and an outer peripheral surface of the first reflection member, the inner peripheral surface surrounding the first reflection member and having a second light reflecting surface at a location above an upper end of the first reflection member.

Abstract: A light-emitting apparatus with improved dissipation efficiency of heat transmitted to a specific electrode of a light-emitting device is provided. A light-emitting device mounting substrate used for the light emitting apparatus include a base body (1) which mounts thereon a light-emitting device (3); a first electrically conductive path (L1) formed within the base body (1), one end thereof being electrically connected to a first electrode (3a) of the light-emitting device (3) and the other end thereof being led out to a surface of the base body (1); and a second electrically conductive path (L2) formed in the base body (1), one end thereof being electrically connected to a second electrode (3b) of the light-emitting device (3), and the other end thereof being formed on the surface of the base body (1). The first electrically conductive path (L1) is made smaller in thermal resistance than the second electrically conductive path (L2).

Abstract: The light-emitting apparatus includes a light-emitting element, a base body having, on its upper principal surface, a placement portion for emplacing thereon the light-emitting element; a first reflecting member formed in a frame-like shape and attached to the upper principal surface of the base body so as to surround the placement portion; a second reflecting member formed in a frame-like shape and attached to the upper principal surface of the base body so as to surround the first reflecting member; a light transmitting member provided inside the second reflecting member so as to cover the light-emitting element and the first reflecting member; and a first wavelength-conversion layer for converting a wavelength of light from the light-emitting element, the first wavelength-conversion layer being provided inside the light transmitting member disposed above the light-emitting element, spaced from the first and second reflecting members.

Abstract: A light-emitting apparatus provides a ceramic-made base body, a frame body, a light-emitting element, a conductor layer and a light-transmitting member. The base body has on its upper surface a mounting portion for the light-emitting element. The frame body is joined to the upper surface of the base body so as to surround the mounting portion, with its inner peripheral surface shaped into a reflection surface. The wiring conductor has its one end formed on the upper surface of the base body and electrically connected to the light-emitting element, and has another end led to a side or lower surface of the base body. The light-transmitting member is disposed inside the frame body so as to cover the light-emitting element, which contains fluorescent materials for performing wavelength conversion. The base body is so designed that ceramic crystal grains range in average particle diameter from 1 to 5 ?m.

Abstract: The present invention provides a dielectric ceramic composition comprising: 30 to 90% by weight of a crystallized glass powder capable of depositing a diopside crystal, 1 to 40% by weight of a calcium titanate powder, a strontium titanate powder or a mixed powder thereof, and 0 to 60% by weight of at least one kind of a powder selected from the group consisting of Al2O3, TiO2, ZrO2, MgTiO3, BaTi4O9, La2Ti2O7, Nd2Ti2O7, Ca2Nb2O7, SrZrO3 and CaZrO3, and a dielectric ceramics obtained by firing the same.

Abstract: The present invention provides a dielectric ceramic composition comprising: 30 to 90% by weight of a crystallized glass powder capable of depositing a diopside crystal, 1 to 40% by weight of a calcium titanate powder, a strontium titanate powder or a mixed powder thereof, and 0 to 60% by weight of at least one kind of a powder selected from the group consisting of Al2O3, TiO2, ZrO2, MgTiO3, BaTi4O9, La2Ti2O7, Nd2Ti2O7, Ca2Nb2O7, SrZrO3 and CaZrO3, and a dielectric ceramics obtained by firing the same.