摘要:
A light emitting device includes: a semiconductor laser element having a first emission face for emitting laser light; a light guiding body buried in the concave portion of the supporting base, guiding the laser light emitted from the semiconductor laser element, and having an incident face to which the laser light enters, and a second emission face from which the laser light traveling through the light guiding body is emitted, the incident face of the light guiding body being such a curved face that an incident angle of the laser light is within a predetermined range including the Brewster angle in a plane formed by a traveling direction of the laser light and a short axis of a light emitting spot of the laser light; and a fluorescent substance scattered in the light guiding body, absorbing the laser light, and emitting the light having a different wavelength from a wavelength of the laser light.
摘要:
A semiconductor light-emitting element has a laminated section which has an active layer made of a semiconductor, and first and second clad layers each being disposed to sandwich the active layer and made of a semiconductor, a pair of first high-reflection layers each being disposed to sandwich the active layer in a first direction orthogonal to the laminated direction of the laminated section, and a low-reflection layer and a second high-reflection layer each being disposed to sandwich the active layer in a second direction orthogonal to the laminated direction and crossing to the first direction.
摘要:
A light emitting device includes a light emitting element emitting an excitation light and a fluorescent element. The fluorescent element includes a semi-translucent film facing the light emitting element, and transmits the excitation light; a first luminescent film including phosphors to absorb the excitation light transmitted through the semi-translucent film and to emit a visible light having a different wavelength than the excitation light; and a reflection film disposed on an opposite side of the first luminescent film on which the semi-translucent film is disposed, reflecting the excitation light transmitted through the first luminescent film towards the first luminescent film.
摘要:
A semiconductor light emitting device, includes an active layer radiating a light having a predetermined wavelength; a first semiconductor layer of a first conductivity type, provided on the active layer. A semiconductor substrate has a first principal surface in contact with the active layer, a second principal surface facing the first principal surface, and side surfaces connected to the second principal surface. Each of the side surfaces has a bevel angle in a range from about 45 degrees to less than 90 degrees with respect to the second principal surface. A second semiconductor layer of a second conductivity type is provided under the active layer. A first electrode is provided under the second semiconductor layer. A distance between the active layer and the first electrode depends on the wavelength and a refractive index of the second semiconductor layer.
摘要:
A conductive member disposed as a power supply line and the like includes: a first conductive material and a second conductive material, at least one of which includes a conductive material having electrical resistance lower than that of aluminum; and a metal film formed by depositing powder including a metal, which is accelerated together with a gas and sprayed, in a sold state, onto a surface of a butting part, where the first conductive material and the second conductive material are butted against each other.
摘要:
To provide a ceramic member having a thermal expansion coefficient close to that of silicon and has satisfactory workability, a probe holder formed by using this ceramic member, and a method of manufacturing the ceramic member. For this purpose, at least mica and silicon dioxide are mixed and an external force oriented in one direction is caused to act on this mixed mixture to sinter the mixture. It is more preferable that, in the mixture, a volume content of the mica is 70 to 90 volume % and a volume content of the silicon dioxide is 10 to 30 volume %.
摘要:
An internal combustion engine which includes a valve deactivation mechanism for reducing an output power shock upon changing of the cylinder number. In an internal combustion engine which includes a valve deactivation mechanism driven by a slide pin which is driven by hydraulic pressure, response delay time after a signal is sent to oil control valves until an intake valve and an exhaust valve are activated or deactivated is used to form a control map in response to control parameters, and the valve deactivation mechanism is controlled based on the control map.
摘要:
In a V-type engine for a vehicle, in which a hydraulic valve rest mechanism which selectively holds at least one of an intake valve and an exhaust valve corresponding to a part of plural cylinders in a valve-closed rest state in correspondence with a vehicle running status is provided in a valve actuation unit, and a hydraulic controller which controls hydraulic pressure of the valve rest mechanism is provided in a main engine body, to reduce the distance of oil passage from the hydraulic controller to the hydraulic valve rest mechanism and simplify the structure of the oil passage. A hydraulic controller is provided on at least one side surface of a cylinder head, and may be generally oriented along a line which is substantially parallel to a central axis of a cylinder bore.
摘要:
According to one embodiment, an information processing apparatus includes an storage apparatus including a first storage and a second storage. The storage apparatus includes a first data management module which stores data which is required to be read in a the predetermined period in the second storage so that the data requested to be read in the predetermined period is distinguishable. The storage apparatus further includes a second data management module which performs replacement of the data in the second storage so that data should be stored in the second storage, in an order reverse to that in which the data is requested to be read, while retaining the data stored in the second storage by the first data management module.
摘要:
A motorcycle engine includes a crankcase housing a crankshaft, and a transmission unit therein, a cylinder block disposed above the crankcase, a cylinder head disposed above the cylinder block, and an intake system arranged behind the cylinder head, and a knock sensor arranged on an upper surface of the crankcase. The knock sensor is arranged behind the cylinder head, and disposed between the intake system and the cylinder block, such that the knock sensor does not restrict arrangement of additional functional parts of the engine on an upper surface of the crankcase. The knock sensor is substantially surrounded and protected by the intake system, the cylinder head, the cylinder block and the crankcase.