Abstract: 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.

Abstract: 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.

Abstract: A light emitting element comprising a layered structure configured by layering a first light reflecting layer 41 configured by layering a plurality of thin films, a light emitting structure 20, and a second light reflecting layer 42 configured by layering a plurality of thin films, wherein the light emitting structure 20 is configured by layering, from the first light reflecting layer side, a first compound semiconductor layer 21, an active layer 23, and a second compound semiconductor layer 22, a second electrode 32 and an intermediate layer 70 are formed between the second compound semiconductor layer 22 and the second light reflecting layer 42 from the second compound semiconductor layer side, and the value of a surface roughness of a second surface 72 of the intermediate layer 70 in contact with the second light reflecting layer 42 is less than the value of a surface roughness of a first surface 71 of the intermediate layer 70 facing the second electrode 32.

Abstract: 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.

Abstract: A semiconductor device comprising: a layered structure 20 configured by layering a first compound semiconductor layer 21, an active layer 23, and a second compound semiconductor layer 22; a substrate 11; a first light reflecting layer 41 arranged on the first surface side of the first compound semiconductor layer 21; and a second light reflecting layer 42 arranged on the second surface side of the second compound semiconductor layer 22, wherein the second light reflecting layer 42 has a flat shape; a concave surface portion 12 is formed on a substrate surface 11b; the first light reflecting layer 41 is formed on at least the concave surface portion 12; the first compound semiconductor layer 21 is formed to extend from the substrate surface 11b onto the concave surface portion 12; and a cavity is present between the first light reflecting layer 41 formed on the concave surface portion 12 and the first compound semiconductor layer 21.

Abstract: [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.

Abstract: 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.

Abstract: [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.

Abstract: A light emitting element includes a stacked structure including, in a stacked state, a first light reflection layer 41 in which a plurality of thin films is stacked, a light emitting structure 20, and a second light reflection layer 42 in which a plurality of thin films is stacked. The light emitting structure includes a first compound semiconductor layer 21, an active layer 23 and, a second compound semiconductor layer 22 which are stacked. The light emitting structure 20 is formed with a light absorbing material layer 71 (32) in parallel to a virtual plane occupied by the active layer 23.

Abstract: [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.

Abstract: [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.

Abstract: 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.

Abstract: [Object] To provide a light-emitting device and a display apparatus that high-output can be achieved without enlarging a light confinement width, i.e., without enlarging a beam spot size. [Solving Means] A light-emitting device includes a first electrode layer, a first conduction type layer, a second conduction type layer, an active layer, and 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 d1, a thickness of the second compound semiconductor layer in the light propagation region is set to d2, and a thickness of the second compound semiconductor layer in the ridge stripe structure is set to d3, d3>d2>d1 is satisfied.

Abstract: Inconvenience caused by a difference in temperature of different kinds of fuel gases is solved. In a power generation system, exhausted fuel gas exhausted from a SOFC is used as a fuel of a 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 a first combustor for burning fuel gas which is different kind from the exhausted fuel gas, a first turbine driven by combustion gas supplied from the first combustor, a second combustor for burning the exhausted fuel gas, and a second turbine shaft-coupled with the first turbine and driven by combustion gas supplied from the second combustor.