Sharp Kabushiki Kaisha Corporation

Makoto Agatani

Toshio Hata

Shinya Ishizaki

Tomokazu Nada

Toyonori Uemura

Masahiro Konishi

Makoto Matsuda

Hitoshi Matsushita

Tatsuya Morioka

Shinji Osaki

Taiji Morimoto

Junichi Somei

Kenji Hatazawa

Yuji Kozuma

A light-emitting device () is provided with: a light-emitting module () in which a light-emitting section () is provided on a ceramic substrate (); a heat sink (); a holder () having a ceramic plate () for attaching the light-emitting module () to the heat sink (); and a heat-dissipating sheet () provided between the ceramic substrate () and the heat sink ().

Light-emitting device having ceramic materials for improving performance thereof

A light emitting device () includes light emitting elements (), conductor wirings (), and alignment marks () formed on a substrate (). The alignment marks () and the conductor wirings () are formed by printing.

Light emitting device and method for manufacturing light emitting device

The light-emitting device includes a substrate and a plurality of light-emitting sections. A first light-emitting section is made up of LED chips and a first fluorescent-substance-containing resin layer, and a second light-emitting section is made up of LED chips and a second fluorescent-substance-containing resin layer. The first fluorescent-substance-containing resin layer and the second fluorescent-substance-containing resin layer are provided in a plurality of locations such that the fluorescent-substance-containing resin layers for the different light-emitting sections are adjacently arranged.

Light emitting device, LED light bulb, spot lighting device, lighting device, and lighting equipment

A light emitting device includes: a ceramic substrate; a plurality of LED chips; a printed resistor(s) connected in parallel with the plurality of LED chips; a dam resin made of a resin having a low optical transmittance; a fluorescent-material-containing resin layer; and an anode-side electrode and a cathode-side electrode, (a) which are provided on a primary surface of the ceramic substrate so as to face each other along a first direction on the primary surface and (b) which are disposed below at least one of the dam resin and the fluorescent-material-containing resin layer. With the configuration in which a plurality of LEDs, which are connected in a series-parallel connection, are provided on a substrate, it is possible to provide a light emitting device which can achieve restraining of luminance unevenness and an improvement in luminous efficiency.

Light emitting device

By using a light emitting device including an insulating substrate and a light emitting unit formed on the insulating substrate, the light emitting unit including: a plurality of linear wiring patterns disposed on the insulating substrate in parallel with one another, a plurality of light emitting elements that are mounted between the wiring patterns while being electrically connected to the wiring patterns, and a sealing member for sealing the light emitting elements, as well as a method for manufacturing thereof, it becomes possible to provide a light emitting device that achieves sufficient electrical insulation and has simple manufacturing processes so that it can be manufactured at a low cost, and a method for manufacturing the same.

Light emitting device and method for manufacturing the same

A light source device is obtained, which has an enhanced light distribution characteristic with sufficiently homogeneous diffused light and can be readily manufactured with a simple configuration. The light source device has a substrate, a board-like first reflectorerected vertically to traverse a center section on the substratewhile both side surfaces face outward, and a plurality of LED chipspositioned on the substrateas a plurality of light emitting elements so as to surround the first reflector. At least both side surfaces of the first reflectorhave a light reflecting function. Thereby, a light source device is obtained, which has an enhanced light distribution characteristic with sufficiently homogeneous diffused light and can be readily manufactured with a simple configuration.

Light source device and illumination device

A light-emitting device capable of ensuring an electric connection between a light-emitting element and an electrode without generating any problem in practical use, by both connecting methods with a solder and a connector, and a lighting device provided with the light-emitting device are provided. The light-emitting device according to the present invention has a plurality of LED chips, and a soldering electrode land and a connector connecting electrode land electrically connected to the chips, on a ceramic substrate. The soldering electrode land is formed of a first conductive material having a function to prevent diffusion to a solder, and the connector connecting electrode land is formed of a second conductive material having a function to prevent oxidation.

Light-emitting device and lighting device provided with the same

A substrate-type LED light source () includes: at least one blue LED chip () which has an emission peak in a range fromnm tonm so as to correspond to a blue light region absorption peak of chlorophyll; a red phosphor () which emit, upon receiving excitation light from the at least one blue LED chip (), light having a peak wavelength in a range fromnm tonm so as to correspond to a red light region absorption peak of chlorophyll; and a resin layer () in which the red phosphoris dispersed and which covers the at least one blue LED chip ().

Light emitting device, LED light source for plant cultivation, and plant factory

The light-emitting device () includes a substrate () and a plurality of light-emitting sections. A first light-emitting section is made up of LED chips () and a first fluorescent-substance-containing resin layer (), and a second light-emitting section is made up of LED chips () and a second fluorescent-substance-containing resin layer (). The first fluorescent-substance-containing resin layer () and the second fluorescent-substance-containing resin layer () are provided in a plurality of locations such that the fluorescent-substance-containing resin layers for the different light-emitting sections are adjacently arranged.

Light emitting device, lighting device

The light-emitting device of the present invention includes LED chips provided on a ceramic substrate and a sealing material in which the LED chips are embedded. The sealing material contains a fluorescent substance and divided into a first fluorescent-substance-containing resin layer and a second fluorescent-substance-containing resin layer by a first resin ring and a second resin ring.

Light-emitting device having a plurality of concentric light transmitting areas

A light emission device includes: an insulating substrate; a light emitting section including a plurality of LED chips mounted on the insulating substrate; and land electrodes for supplying power to the LED chips. At least a surface of each of the land electrodes is made of a conductive material which is harder than Au and Ag and which has sulfurization resistance to such an extent that secures conduction of each land electrode when a current in a working current range is applied on the land electrode.

Growing community of inventors

Osaka, Japan

Makoto Agatani