Abstract: A wavelength conversion element includes a plate, a wavelength conversion layer, and a macromolecular layer. The wavelength conversion layer has a facing surface facing the plate. The wavelength conversion layer contains an inorganic wavelength conversion material that emits light of a wavelength different from the wavelength of incident light. The macromolecular layer is disposed between the plate and the wavelength conversion layer. A part of the facing surface is in contact with the plate. At least a part of another portion of the facing surface is joined to the plate with the macromolecular aver interposed.

Abstract: Energy density of excitation light for irradiation is adjusted to achieve an improvement in fluorescent light emission intensity. An optical element includes a phosphor layer configured to emit fluorescent light by being excited by excitation light emitted from a light source, the phosphor layer has a first surface to be irradiated with the excitation light, an excitation light irradiation region of the first surface includes a first region and a second region, the first region is processed beforehand to be set at an angle that is not perpendicular to a propagation direction of the excitation light, and the first region and the second region are non-parallel to each other.

Abstract: A phosphor layer composition, phosphor member, light source device, and projection device are provided that are capable of restraining reflection or scattering at interfaces between phosphor particles and a binder to improve the excitation-light absorption by, and the external quantum efficiency of, the phosphor particles. The present invention, in an aspect thereof, is directed to a phosphor layer composition including: phosphor particles 111 absorbing excitation light and emitting prescribed fluorescence; and a binder 112 composed of a translucent gel containing a metal alkoxide or a mixture of a metal alkoxide and a metal oxide, wherein the phosphor particles 111 are dispersed in the binder 112, and the phosphor particles 111 and the binder 112 differ in refractive index by 0.3 or less.

Abstract: A phosphor layer composition, phosphor member, light source device, and projection device are provided that are capable of restraining reflection or scattering at interfaces between phosphor particles and a binder to improve the excitation-light absorption by, and the external quantum efficiency of, the phosphor particles. The present invention, in an aspect thereof, is directed to a phosphor layer composition including: phosphor particles 111 absorbing excitation light and emitting prescribed fluorescence; and a binder 112 composed of a translucent gel containing a metal alkoxide or a mixture of a metal alkoxide and a metal oxide, wherein the phosphor particles 111 are dispersed in the binder 112, and the phosphor particles 111 and the binder 112 differ in refractive index by 0.3 or less.

Abstract: A direct alcohol fuel cell system including a fuel cell unit having a direct alcohol fuel cell including an anode electrode, an electrolyte membrane, and a cathode electrode in this order, a fuel supply unit for supplying alcohol fuel to the anode electrode, a detecting unit for detecting a current value I of a current flowing between the anode electrode and the cathode electrode of the direct alcohol fuel cell or an output voltage value V of the direct alcohol fuel cell, and a temperature T of the direct alcohol fuel cell, and a control unit for determining a supply quantity Q of alcohol fuel to the anode electrode based on detection results of the current value I or the output voltage value V, and the temperature T and controlling the fuel supply unit so that the supply quantity of the alcohol fuel is adjusted to the supply quantity Q.

Abstract: An UI display apparatus capable of searching for and identifying a communication device connected to a network, in accordance with a user's preference. A television being the UI display apparatus includes a communication unit communicating with a DVD recorder, which is a communication device connected via the network, receiving data sent from the DVD recorder via the network, and sending the received data to the processing unit, and a processing unit instructing the display unit to perform UI rendering based on information stored in a recording unit, the recording unit storing the type name of a device the television wishes to display on the display unit among the devices on the network, the type name of a service provided by the device, a function name, etc. The television also includes a display unit displaying a UI such as an icon according to an instruction from the processing unit.

Abstract: Provided is a UI display apparatus capable of easily searching for and identifying a communication device connected to a network, in accordance with a user's preference. A television 201 being the UI display apparatus includes: a communication unit 102 that communicates with a DVD recorder, which is a communication device connected via the network, receives data sent from the DVD recorder via the network, and sends the received to the processing unit 103; a processing unit 103 that instructs the display unit 105 to perform UI rendering based on information stored in a recording unit 104; the recording unit 104 storing the type name of a device the television 201 wishes to display on the display unit 105 among the devices on the network, the type name of a service provided by the device, a function name, and the like; and a display unit 105 that displays a UI such as an icon according to an instruction from the processing unit 103.

Abstract: For devices connected to a network using IEEE 1394 or the like, it has not been possible in the prior art to automatically perform grouping of these device based on their physical location relationships. The present invention discloses a network management system which, by utilizing a plurality of infrared signals, performs grouping of devices, i.e., a VTR, a TV-a, a DVD, a TV-b, and a component system, connected to a network, wherein a TV-a infrared receiver, a VTR infrared receiver, a TV-b infrared receiver, a DVD infrared receiver, and a component system infrared receiver are provided as infrared signal receiving apparatuses in the TV-a, the VTR, the DVD, the TV-b, and the component system, respectively, and of these devices, devices whose receiving apparatuses have received the same kind of infrared signal are grouped into the same group.

Abstract: A receiving control device has