Sony Corporation

Sony Group Corporation

Mitsubishi Hitachi Power Systems, Ltd.

Mitsubishi Power, Ltd.

Ntt Docomo, Inc.

Kentaro Fujii

Tomoki Ono

Rintaro Koda

Hikaru Tanoue

Yoshio Watanabe

Tatsushi Hamaguchi

Nobuharu Murashima

Keisuke Ishii

Toru Takebe

So Manabe

Noriaki Takagi

Shin Miyashita

Yoshiaki Watanabe

Kohtaro Amano

Koji Izumi

Taku Yaegashi

Hiroto Tooyama

Yuichi Kaneda

Yoshinori Sugiyama

Takaya Konishi

Toshihide Kanazawa

Kazuhide Takahashi

Yuuki Kishikawa

Satoshi Namie

There is provided a semiconductor device that comprises a layered structure configured by layering a first compound semiconductor layer, an active layer, and a second compound semiconductor layer. The semiconductor device further includes a substrate, a first light reflecting layer arranged on the first surface side of the first compound semiconductor layer, and a second light reflecting layer arranged on the second surface side of the second compound semiconductor layer. Further, the second light reflecting layer has a flat shape, a concave surface portion is formed on a substrate surface, the first light reflecting layer is formed on at least the concave surface portion, the first compound semiconductor layer is formed to extend from the substrate surface onto the concave surface portion, and a cavity is present between the first light reflecting layer and the first compound semiconductor layer.

Light emitting element and method for manufacturing same

A light emitting element includes a stacked structure including, in a stacked state, a first light reflection layerin which a plurality of thin films is stacked, a light emitting structure, and a second light reflection layerin which a plurality of thin films is stacked. The light emitting structure includes a first compound semiconductor layer, an active layerand, a second compound semiconductor layerwhich are stacked. The light emitting structureis formed with a light absorbing material layer() in parallel to a virtual plane occupied by the active layer. Let the oscillation wavelength be λ, let the equivalent refractive index from the active layer to the light absorbing material layer be n, let the optical distance from the active layer to the light absorbing material layer be L, and let Λ≡{(2m+1)λ}/(4n) (where m is an integer of equal to or more than 0), then, the value of Lis a value different from Λ, and the thickness Tof the second light reflection layeris a value different from the theoretical thickness Tof the second light reflection layer

Light emitting element

A light emitting element comprising a layered structure configured by layering a first light reflecting layerconfigured by layering a plurality of thin films, a light emitting structure, and a second light reflecting layerconfigured by layering a plurality of thin films, wherein the light emitting structureis configured by layering, from the first light reflecting layer side, a first compound semiconductor layer, an active layer, and a second compound semiconductor layer, a second electrodeand an intermediate layerare formed between the second compound semiconductor layerand the second light reflecting layerfrom the second compound semiconductor layer side, and the value of a surface roughness of a second surfaceof the intermediate layerin contact with the second light reflecting layeris less than the value of a surface roughness of a first surfaceof the intermediate layerfacing the second electrode

The present disclosure relates to an imaging device, an imaging operation device, and a control method that enable better imaging. A reaction force generating unit generates a reaction force with respect to the operation direction of the operation unit, and a control unit sets the reaction force on the basis of imaging-related information during operation on the operation unit. Further, the operation unit gives an instruction on a start of image capture by the imaging device, a position detection unit detects an amount of operation with respect to the operation direction of the operation unit, and the control unit sets the reaction force according to the amount of operation. The present technology can be applied, for example, to imaging devices such as single-lens reflex cameras and compact cameras.

Imaging device, imaging operation device, and control method

Provided is a light-emitting device that includes a first electrode layer, a first conduction type layer, a second conduction type layer, an active layer, and a second electrode layer. The first conduction type layer includes a current injection region formed by the first electrode layer and a current non-injection region. A waveguide structure included in the first conduction type layer, the active layer, and the second conduction type layer includes a first region and a second region. The first region has a first waveguide that is the current injection region and the current non-injection region and has a first refractive index difference. The second region has a second waveguide arranged to be extended from the first waveguide to the first end and has a second refractive index difference greater than the first refractive index difference. The second waveguide has a region narrowing toward the first end.

Light-emitting device and display apparatus

[Object] To provide an optical device and a display apparatus capable of decreasing a waveguide loss, inhibiting a laser oscillation, and achieving a high-output. [Solving Means] An optical device includes a first electrode layer, a first conduction type layer, a second conduction type layer, an active layer, and a second electrode layer. The first conduction type layer includes a current injection region formed by the first electrode layer and a current non-injection region. A waveguide structure included in the first conduction type layer, the active layer, and the second conduction type layer includes a first region and a second region. The first region has a first waveguide that is the current injection region and the current non-injection region and having a first refractive index difference. The second region has a second waveguide arranged to be extended from the first waveguide to the first end and has a second refractive index difference greater than the first refractive index difference. The second waveguide has a reflection structure that reflects light entered from the first waveguide and slopes an optical axis and a taper structure that decreases a size of a beam spot of light entered from the reflection structure.

Optical device and display apparatus

In a power generation system, exhausted fuel gas exhausted from a solid oxide fuel cell (SOFC) is used as a fuel of a first combustor or a second combustor of a gas turbine, and at the same time, a part of compressed air compressed by a compressor of the gas turbine is used to drive the SOFC. The gas turbine includes the first combustor for burning fuel gas which is different from the exhausted fuel gas, a first turbine configured to be driven by combustion gas supplied from the first combustor, the second combustor for burning at least a part of the exhausted fuel gas, and a second turbine coupled with the first turbine and configured to be driven by combustion gas supplied from the second combustor.

Combined power generation system comprising a fuel cell and a gas turbine engine

Camera

[Object] To provide an optical element and a display apparatus capable of reducing a waveguide loss and achieving laser oscillation suppression and a high output. [Solving Means] An optical element according to the present technology includes a substrate, a first end which is a light emission end, and a second end provided on an opposite side to the first end, the optical element including a first electrode layer, a first semiconductor layer, a second semiconductor layer, an active layer, and a second electrode layer. The first electrode layer has a stripe form extended from the second end toward the first end. A waveguide structure included in the first conductivity type layer, the active layer, and second conductivity type layer includes a first waveguide and a second waveguide, and the second waveguide has a tapered structure that makes a beam spot of light incident from the first waveguide smaller. The optical element includes a reflection surface that is formed by an excavation structure provided from the first semiconductor layer to the active layer on at least one of the first end and the second end, and reflects light incident from the first waveguide or the second waveguide.

Optical element and display apparatus

There is provided an imaging device that includes a body and a viewfinder. The viewfinder is movable in two or more directions, between an encased position and a operative position. The viewfinder is encased inside the body at the encased position. The viewfinder is projected outside the body at the operative position.

Imaging device

Power generation system, driving method for power generation system, and combustor

A light-emitting element includes a light-emitting region which is made from a stacked structure configured from a first compound semiconductor layer, an active layer, and a second compound semiconductor layer, and a light propagation region which is made from the stacked structure, extends from the light-emitting region, and has a light-emitting end surface. The light-emitting region is configured from a ridge stripe structure and ridge stripe adjacent portions positioned at both sides of the ridge stripe structure, and when a thickness of the second compound semiconductor layer in the ridge stripe adjacent portions is set to d, a thickness of the second compound semiconductor layer in the light propagation region is set to d, and a thickness of the second compound semiconductor layer in the ridge stripe structure is set to d, d&#x3e;d&#x3e;dis satisfied.

Light emitting element and display device including a light-emitting region having ridge stripe structures

A multilayer printed circuit board which can surely establish interlayer connection with low resistance. The multilayer printed circuit board comprises: a first substrate having a conductive pattern on one face and a non-penetration connection hole on the other face, for exposing the conductive pattern to outside; a second substrate having a conductive pattern formed on a face opposed to the other face of first substrate and a conductive bump on the conductive pattern integrally. The first substrate and the second substrate are integrated by engaging the bump of the second substrate with the connection hole of the first substrate and by intervening a conductive cement between the bumps and the conductive pattern exposed to outside from the connection holes.

Multilayer printed circuit board and method of manufacturing multilayer printed circuit board

A conductive bond comprises conductive colloidal particles and a dispersant for dispersing the conductive colloidal particles. A multilayer printed circuit board includes a plurality of substrates, each having a conductive pattern on at least one face thereof. Any adjacent two of the substrates are separated by an insulating layer, and the conductive pattern of a first substrate of the two substrates faces the conductive pattern of a second substrate of the two substrate. The conductive pattern of a first substrate has one or more bumps for electrical connection to the second substrate. The bump and the conductive pattern of the second substrate are bonded to each other with the conductive bond applied to the tip of the bump.

Growing community of inventors

Tokyo, Japan

Kentaro Fujii