摘要:
To improve an angular color difference and emit uniform illumination light. According to an embodiment, a light-emitting device in an embodiment includes a light-emitting module (15). The light-emitting module (15) includes a substrate (21), a plurality of light-emitting elements (45) made of semiconductor, and a plurality of sealing members (54). The light-emitting elements (45) are disposed on the substrate (21). The sealing members (54) contain, as a main component, translucent resin mixed with a phosphor. The sealing members (54) are heaped up from the bottom surfaces thereof bonded on the substrate (21) and are each formed to bury a singularity or a plurality of the light-emitting elements (45). A ratio (H/D) of a diameter D of the bottom surfaces to height H of the heaps of the sealing members (54) is set to 0.22 to 1.0.
摘要:
According to one embodiment, a light emitting device includes: a substrate a back face side of which is disposed on a mounting member; a plurality of light emitting elements mounted on a surface side of the substrate; and a power supply terminal provided on the surface side of the substrate and electrically connected to the light emitting elements. The power supply terminal is connected to electrical connecting units by elastic pressing force directed from the surface side of the substrate to the mounting member side. A mechanical fixing unit has a pressing portion brought into contact with the surface side of the substrate. The mechanical fixing units fix the substrate to the mounting member with use of elastic pressing force of the pressing portions directed from the surface side of the substrate to the mounting member side.
摘要:
According to one embodiment, a light-emitting device includes a substrate, a reflecting layer formed on the substrate, a light-emitting element placed on the reflecting layer, and a sealing resin layer that covers the reflecting layer and the light-emitting element. The oxygen permeability of the sealing resin layer is equal to or lower than 1200 cm3/(m2·day·atm), and the ratio of the area of the reflecting layer covered by the sealing resin layer to the entire area on the resin substrate covered by the sealing resin layer is between 30% and 75% inclusive.
摘要:
According to one embodiment, a light-emitting module includes a module substrate, a first wiring pattern provided on the module substrate and including a common wire connecting portion, a second wiring pattern provided on the module substrate and including a first wire connecting portion, a second wire connecting portion, and a middle pattern portion, a first light-emitting element group arranged between the common wire connecting portion and the first wire connecting portion and including semiconductor light-emitting elements connected in series and being electrically connected to the common wire connecting portion and the first wire connecting portion, and a second light-emitting element group arranged between the common wire connecting portion and the second wire connecting portion and including semiconductor light-emitting elements connected in series and being electrically connected to the common wire connecting portion and the second wire connecting portion.
摘要:
According to one embodiment, a light emitting device includes: a substrate a back face side of which is disposed on a mounting member; a plurality of light emitting elements mounted on a surface side of the substrate; and a power supply terminal provided on the surface side of the substrate and electrically connected to the light emitting elements. The power supply terminal is connected to electrical connecting units by elastic pressing force directed from the surface side of the substrate to the mounting member side. A mechanical fixing unit has a pressing portion brought into contact with the surface side of the substrate. The mechanical fixing units fix the substrate to the mounting member with use of elastic pressing force of the pressing portions directed from the surface side of the substrate to the mounting member side.
摘要:
According to one embodiment, a lighting apparatus includes a conductive main body at a ground potential, a light-emitting device in the main body, and a lighting control device configured to supply power to the light-emitting device. The light-emitting device includes a substrate including an insulation layer, and a radiation layer with a thermal conductivity, formed of conductive material and laminated on the insulation layer, a plurality of light-emitting elements mounted on the radiation layer, and a power supply wiring configured to electrically connect the light-emitting elements and to make the radiation layer electrically nonconductive.
摘要:
A memory controller receives data to be stored in a flash memory by a host system in synchronism with a clock (external clock) to be a reference for an operation of the host system, and outputs the received data in synchronism with an internal clock of the memory controller. The memory controller receives data to be read from the flash memory by the host system in synchronism with the internal clock of the memory controller, and outputs the received data in synchronism with the external clock.
摘要:
A metal back-attached phosphor screen includes a light absorption layer (2) and a phosphor layer (3) on an inner surface of a face plate (1) respectively, and a metal back layer (5) formed on the phosphor layer (3). The light absorption layer (2) contains an oxygen carrier prepared by adding a reducing metal to a metal oxide. A particle size of the oxygen carrier can be set to be 1 to 10 μm. Besides, a phosphor material in which an activator such as Eu is added to a phosphor host material including oxygen such as Y2O2S, can be used as the oxygen carrier. In an image display device such as an FED, it is possible to eliminate a generation and an emission of a gas from the phosphor screen, and to improve an operation life of an electron emitting source.