Sharp Kabushiki Kaisha Corporation

Toyonori Uemura

Toshio Hata

Makoto Agatani

Shinya Ishizaki

Tomokazu Nada

Makoto Matsuda

Hitoshi Matsushita

Shinji Osaki

Tatsuya Morioka

Atsushi Yamashita

Masatsugu Masuda

Masanobu Okano

Masayuki Ohta

Junichi Somei

Kenji Hatazawa

Yuji Kozuma

A light emitting device which emits a secondary light with high color purity and has a fast response speed is obtained. A KSF phosphor () which absorbs a part of blue light and emits red light and a CASN phosphor () are distributed in a resin () which seals an LED chip () which emits the blue light. The KSF phosphor () absorbs the blue light and emits the red light by forbidden transition, and the CASN phosphor () absorbs the blue light and emits the red light by allowed transition.

Light emitting device that emits secondary light with a fast response

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 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

Light emitting device and illumination 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, 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 emitting device () includes (i) a surface-mounted light emitting section (), (ii) a lens section () which is provided on a light exit side of the surface-mount light emitting section (), and (iii) a frame section () which fixes a periphery of the lens section (). In the surface-mounted light emitting section (), a resin layer () that contains a red fluorescent material () covers at least one (1) blue LED chip (). This allows the surface-mounted light emitting section () to emit (i) light that matches a peak wavelength which falls within a short wavelength range and (ii) light that matches a peak wavelength which falls within a long wavelength range.

Light emitting apparatus, and light irradiation apparatus provided with light emitting apparatus

An LED bulb () including a light source device () provided on a mounting plate () and covered by a globe () in a shape of a spherical shell is configured such that the light source device () includes: a reflecting member () in a truncated cone shape; and a plurality of LED chips () provided on a top surface of the substrate (), at least a side face of the reflecting member () has a light reflecting function, and the light source device () is provided on the mounting plate () in such a way that a bottom surface of the substrate () faces the mounting plate ().

Lighting device and light source device

An illumination device with a toning function in which possibility of moisture and dust intruding into the case is reduced with a simple mechanism is realized. The illumination device includes a light emitting element light source () mounted on a substrate inside the case unit (), an external gear-shaped fluorescent-substance plate () having a configuration in which a light emitting color of an applied fluorescent substance differs according to position and being arranged above the light emitting element light source () inside the case unit (), and an internal gear-shaped adjustment ring () arranged so as to mesh with the external teeth of the fluorescent-substance plate (), wherein the adjustment ring () is arranged to be positioned on the outer periphery of the main body under a lens dome (), and when the adjustment ring () is rotated, a relative positional relationship between a color distribution applied on the fluorescent-substance plate () and the light emitting element light source () is changed.

Growing community of inventors

Osaka, Japan

Toyonori Uemura