PHOSPHOR CERAMIC AND LIGHT-EMITTING DEVICE

• Main Authors: OOYABU YASUNARI, FUJII HIRONAKA, NAKAMURA TOSHITAKA, ITO HISATAKA
• Format: Patent
• Language: English; Korean
• Published: 05.01.2012
• Subjects: ADHESIVES; ARTIFICIAL STONE; BASIC ELECTRIC ELEMENTS; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LIME, MAGNESIA; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES; REFRACTORIES; SEMICONDUCTOR DEVICES; SLAG; TREATMENT OF NATURAL STONE

PURPOSE: A phosphor ceramics is provided to embody emitted light color, to obtain optical permeability, and to improve physical strength in a non-fluorescent layer. CONSTITUTION: A phosphor ceramics(1) comprises at least one fluorescent layer(2) and at least one non-fluorescent layer(3) stacked on the fluorescent layer. The fluorescent layer contains basic material and additional material for emitting fluorescent. The non-fluorescent layer does not contain the additional material for emitting fluorescent but contains the basic material; the thickness of the fluorescent layer is 100 micron or less.