摘要:
A position detector includes a pair of magnetic sensors spaced from each other and a magnetic force generator movable relative to the pair of magnetic sensors. The length of the magnetic force generator along the space between the magnetic sensors is equal to or larger than a length of a space between the magnetic sensors. Preferably, the length of the magnetic force generator along the space between the magnetic sensors is equal to or larger than a sum of the length of the space between the magnetic sensors and an allowable moving distance of the magnetic force generator.
摘要:
First of all, a semiconductor substrate which consists of SiC is soaked for ten minutes in a buffered hydrofluoric acid, thereby the oxidized film formed on the surface of the semiconductor substrate being etched. Then, TMA, NH3, TMG, and hydrogen for carrier are supplied at the rates of 10 &mgr;mol/min., 2.5 L/min., and 2 L/min., respectively to the semiconductor substrate at a temperature of 1090° C. by using MOVPE, thereby a buffer layer which consists of single crystal AlN and has a thickness of 15 nm being grown on the main surface of the semiconductor substrate. After lowering the temperature to 800° C., TMA, TMG, TMI, and NH3are supplied at the rates of 0.2 &mgr;mol/min., 2 &mgr;mol/min., 20 &mgr;mol/min., and 5 L/min., respectively, thereby a single crystal layer which consists of AlGaInN being grown on the buffer layer.
摘要:
On an entire surface of a substrate of sapphire having a projection with a width in the lateral direction of approximately 10 .mu.m thereon, a first semiconductor layer of Al.sub.y Ga.sub.1-y N and a second semiconductor layer of In.sub.x Ga.sub.1-x N are successively grown by MOVPE. In this manner, an island-like stacked substance including the isolated first semiconductor layer and the isolated second semiconductor layer can be formed on the top surface of the projection of the substrate.
摘要翻译:在具有横向宽度为大约10μm的突起的蓝宝石衬底的整个表面上,通过MOVPE连续生长Al y Ga 1-y N的第一半导体层和In x Ga 1-x N的第二半导体层。 以这种方式,可以在基板的突起的顶表面上形成包括隔离的第一半导体层和隔离的第二半导体层的岛状堆叠物质。
摘要:
The present invention provides a double-side grinder capable of grinding double-sides of an aluminum disk highly efficiently and affording a ground aluminum disk free of end-face flaw and superior in both surface accuracy and dimensional accuracy while obviating the occurrence of grinding marks extending in different directions. A rough grinding mechanism having rough grinding wheels disposed opposedly to each other is mounted, a finish grinding mechanism having finish grinding wheels disposed opposedly to each other is mounted just after the rough grinding mechanism, and a belt-like carrier having a large number of pockets formed longitudinally of the carrier with aluminum disks engaged therein is passed between the rough grinding wheels and the finish grinding wheels, thereby allowing double-sides of each aluminum disk to be subjected to rough grinding and finish grinding in a continuous manner. Moreover, work rotation braking means each comprising a braking member of rubber for pressing at least one side of an aluminum disk to brake the rotation of the disk and a coiled spring for pressing the braking member to the aluminum disk are disposed on both carrier incoming and outgoing sides of a pair of grinding wheels to brake the rotation of the aluminum disk caused by follow-up rotation thereof together with rotation of the grinding wheels when the disk gets in between the grinding wheels and also when it leaves the grinding wheels.
摘要:
A magnetic circuit component molding device for integrally molding a compound a center yoke with a ring-shaped magnet includes top and bottom press vertically arranged at opposed positions. A ring-shaped magnet is place on a bottom die between top and bottom press. The top and bottom press compress the compound against the ring-shaped magnet ring with a vertical pressure. A holder unit, separated in plural segments, having tapered outer circumferences is provided around the ring-shaped. A holder presser having a tapered inner circumference is mounted on the holder unit as tapered portions thereof are engaged together. A portion of the vertical pressure, when the top press compresses the compound, is transferred by springs 10 to the holder presser, and is amplified by the tapered portions and applied to the outer circumference surface of the ring-shaped magnet by the holder unit.
摘要:
An auto focus camera includes a focus detecting circuit, a lens driving circuit for driving a taking lens to an in-focus position based on a focus detection result, a starting signal outputting circuit for outputting a starting signal which starts a focusing operation, an operating member to be operated by a user after the starting signal is outputted, and a controlling circuit for controlling the lens driving circuit so as to drive the taking lens in manners different between before and after an operation of the operation member.
摘要:
To provide a drive unit and a drive module which include a shape memory alloy as a drive source to move a driven member and are capable of the high-precision movement of the driven member to a reference position. A drive unit and a drive module can be provided by controlling, in the drive unit and the drive module which include the shape memory alloy as the drive source to move the driven member, the shape memory alloy so that the resistance of the shape memory alloy is equal to the resistance when the driven member is located at the reference position.
摘要:
An object of the preset invention is to provide a technique capable of preventing occurrence of an assembly error. A driving apparatus for driving an object includes: a driving part having a stationary part and a moving part; and a displacement transmitting part for transmitting a displacement to the object in accordance with a drive displacement of the moving part. The displacement transmitting part and the moving part coupled to the displacement transmitting part are integrally molded.
摘要:
An art of a driving device for appropriately improving a response of an SMA actuator will be provided. A portable telephone 1 has an image stabilization system 10 for driving an image pickup unit 9 by a pair of driving members 15a and 15b functioning as actuators, thereby performing image stabilization. Driving members 15a and 15b are formed as a wire of shape memory alloy (SMA) and when a voltage is applied to both ends and a current is supplied, driving force is generated in the contraction direction. With respect to the wire diameter of the SMAs, the wire diameter of the SMAs is set between 10 μm and 80 μm, thus the mountability and response are improved appropriately.
摘要:
An image capturing apparatus includes: an image pickup device in which photoelectric conversion elements corresponding to color components are arranged in a predetermined pattern; an acquisition unit that successively acquires a plurality of images by using the image pickup device; a detector that detects a positional deviation among the plurality of images; and a synthesis unit that compensates the positional deviation to synthesize the plurality of images by addition, wherein the synthesis unit adds the plurality of images in a state where the images have the same color layout as that of the photoelectric conversion elements in the image pickup device.