摘要:
A light emitting device includes a substantially cuboid package and a light emitting element. The package is made up of a molded article, and first and second leads each embedded in the molded article. The first lead has a first terminal component exposed at the boundary between a first side face, a bottom face, and a rear face contiguous with the bottom face and opposite a light emission face. The second lead has a second terminal component exposed at the boundary between a second side face opposite the first side face, the bottom face, and the rear face. The first terminal component has a first terminal concavity whose opening is contiguous with the first side face, the bottom face, and the rear face. The second terminal component has a second terminal concavity whose opening is contiguous with the second side face, the bottom face, and the rear face.
摘要:
A light emitting device comprises a light emitting element and a package constituted by a molded article and a first lead and a second lead embedded in the molded article, and having a bottom face, a top face disposed opposite to the bottom face, and a light emission face connected to the bottom face and the top face. The first lead has a first terminal part exposed at the bottom face exposed at the top face. The exposed part is provided more toward the center of the package than the first terminal part.
摘要:
A light emitting device includes a substantially cuboid package and a light emitting element. The package is made up of a molded article, and first and second leads each embedded in the molded article. The first lead has a first terminal component exposed at the boundary between a first side face, a bottom face, and a rear face contiguous with the bottom face and opposite a light emission face. The second lead has a second terminal component exposed at the boundary between a second side face opposite the first side face, the bottom face, and the rear face. The first terminal component has a first terminal concavity whose opening is contiguous with the first side face, the bottom face, and the rear face. The second terminal component has a second terminal concavity whose opening is contiguous with the second side face, the bottom face, and the rear face.
摘要:
A light emitting device comprises a light emitting element and a package constituted by a molded article and a first lead and a second lead embedded in the molded article, and having a bottom face, a top face disposed opposite to the bottom face, and a light emission face connected to the bottom face and the top face. The first lead has a first terminal part exposed at the bottom face exposed at the top face. The exposed part is provided more toward the center of the package than the first terminal part.
摘要:
A light emitting device includes a base body forming a recess defined by a bottom surface and a side wall thereof, a conductive member whose upper surface being exposed in the recess and whose lower surface forming an outer surface, a protruding portion disposed in the recess, a light emitting element mounted in the recess and electrically connected to the conductive member, and a sealing member disposed in the recess to cover the light emitting element. The base body has a bottom portion and a side wall portion integrally formed of a resin, an inner surface of the side wall portion is the side wall defining the recess and has a curved portion, and the protruding portion is disposed in close vicinity to the curved surface. With this arrangement, a thin and small-sized light emitting device excellent in light extraction efficiency and reliability can be obtained.
摘要:
A light emitting device includes an excitation light source that emits excitation light, a wavelength conversion member, a light guide, and a light guide distal end member. The wavelength conversion member absorbs the excitation light emitted from the excitation light source, converts its wavelength, and releases light of a predetermined wavelength band. The light guide in which the center part (core) of its cross section has a refractive index that is higher than the refractive index of the peripheral portion (cladding) guides the excitation light emitted from the excitation light source to the wavelength conversion member. The light guide distal end member supports a distal end of the light guide on the wavelength conversion member side. The light guide distal end member is formed from a material that reflects the excitation light and/or the light that has undergone wavelength conversion.
摘要:
A lamp includes a light-emitting body that converts electric energy into light energy and a translucent glass covering the light-emitting body, wherein a phosphor layer is provided on at least inner or outer surface of the translucent glass. The phosphor layer includes a fluorescent material including a first phosphor that at least partially converts energy emitted by an excitation source, which emits ultraviolet having a wavelength of about 365 nm, to a first emission spectrum that is different from the energy, and a second phosphor that at least partially converts the first emission spectrum to a second emission spectrum. Peak wavelengths of the emission spectrum of the first and second phosphors have a relation of complementary colors so that when the light created due to the peak wavelengths of the first and second phosphors are mixed, the resulting light is in the white region.
摘要:
An oxynitride phosphor consisting of a crystal containing at least one or more of Group II elements selected from the group consisting of Be, Mg, Ca, Sr, Ba and Zn, at least one or more of Group IV elements selected from the group consisting of C, Si, Ge, Sn, Ti, Zr and Hf, and a rare earth element being an activator R, thereby providing a phosphor which is excited by an excitation light source at an ultraviolet to visible light region and which has a blue green to yellow luminescence color that is wavelength converted.
摘要:
An oxynitride phosphor consisting of a crystal containing at least one or more of Group II elements selected from the group consisting of Be, Mg, Ca, Sr, Ba and Zn, at least one or more of Group IV elements selected from the group consisting of C, Si, Ge, Sn, Ti, Zr and Hf, and a rare earth element being an activator R, thereby providing a phosphor which is excited by an excitation light source at an ultraviolet to visible light region and which has a blue green to yellow luminescence color that is wavelength converted.
摘要:
An oxynitride phosphor consisting of a crystal containing at least one or more of Group II elements selected from the group consisting of Be, Mg, Ca, Sr, Ba and Zn, at least one or more of Group IV elements selected from the group consisting of C, Si, Ge, Sn, Ti, Zr and Hf, and a rare earth element being an activator R, thereby providing a phosphor which is excited by an excitation light source at an ultraviolet to visible light region and which has a blue green to yellow luminescence color that is wavelength converted.