摘要:
A lens drive mechanism includes a drive source; a lead screw that is connected to the drive source and rotated by operation of the drive source; a nut member that screws on the lead screw and moves as the lead screw rotates; a lens hold portion that is so disposed as to move as the nut member moves and hold a lens; a guide member that guides the lens hold portion to move in the same direction as that of movement of the nut member; and a leaf spring member that if the nut member is situated near one end of a thread portion of the lead screw, pressurizes the nut member toward the other end of the thread portion of the lead screw.
摘要:
A spherical aberration correction mechanism includes a plurality of aberration correction lenses, a movable portion in which the aberration correction lens is held, a fixed portion in which the movable portion is arranged so as to be slidable as well as the aberration correction lens is held, a shaft supporting the movable portion so as to be rotatable about the axis as well as to be slidable in the axial direction, a feed screw having spiral grooves, an engaging portion having convex portions to be engaged with the spiral grooves from one direction and a coil spring fitted to the outside of the shaft, pressing the movable portion in the axial direction. The coil spring has a rotation prevention portion engaged with the fixed portion and a torque biasing portion engaged with the movable portion, and the coil spring is installed in a twisted state in advance.
摘要:
A lens drive mechanism includes a drive source; a lead screw that is connected to the drive source and rotated by operation of the drive source; a nut member that screws on the lead screw and moves as the lead screw rotates; a lens hold portion that is so disposed as to move as the nut member moves and hold a lens; a guide member that guides the lens hold portion to move in the same direction as that of movement of the nut member; and a leaf spring member that if the nut member is situated near one end of a thread portion of the lead screw, pressurizes the nut member toward the other end of the thread portion of the lead screw.
摘要:
A spherical aberration correction mechanism includes a plurality of aberration correction lenses, a movable portion in which the aberration correction lens is held, a fixed portion in which the movable portion is arranged so as to be slidable as well as the aberration correction lens is held, a shaft supporting the movable portion so as to be rotatable about the axis as well as to be slidable in the axial direction, a feed screw having spiral grooves, an engaging portion having convex portions to be engaged with the spiral grooves from one direction and a coil spring fitted to the outside of the shaft, pressing the movable portion in the axial direction. The coil spring has a rotation prevention portion engaged with the fixed portion and a torque biasing portion engaged with the movable portion, and the coil spring is installed in a twisted state in advance.
摘要:
An apparatus for ultrasonic diagnosis including a probe configured to transmit ultrasonic waves and to receive reflected ultrasonic waves, an image generator configured to generate an ultrasonic image based on the reflected waves, an image synthesizing unit configured to generate a synthetic image in which a puncture guideline, which indicates a passing line of a puncture needle inserted from a puncture adapter attached to the probe, is superposed on the ultrasonic image, a display area adjusting unit configured to adjust a display area of the synthetic image based on the passing line of the puncture needle, and a display controller configured to display the synthetic image on a monitor based on the display area adjusted by the display area adjusting unit.
摘要:
Disclosed is a method for screening for a medicinal agent that can decrease a body weight, a medicinal agent that can reduce a visceral fat, a medicinal agent that can reduce a triglyceride in the liver, and a medicinal agent that can ameliorate obesity and fatty liver. The method involves a step of measuring the inhibitory activity of a candidate substance on a sphingomyelin synthase, wherein the candidate substance is determined to have at least one function selected from the group consisting of an anti-obesity agent, a visceral fat-reducing agent, a fatty liver-treating agent and an adiponectin expression enhancer when the candidate substance has an inhibitory activity on the sphingomyelin synthase.
摘要:
An adhesive composition for polarizing plates in which an acrylic polymer, a tin compound having a dialkyl group and serving as a cross-linking accelerator and an isocyanate cross-linker are dissolved in an organic solvent, the acrylic polymer being formed by copolymerization of monomers containing an alkyl (meth)acrylate, a hydroxyl group containing monomer and/or a carboxyl group containing monomer, wherein preferably, a solution containing 30% by weight of the acrylic polymer which constitutes the adhesive composition, dissolved in 70% by weight of ethyl acetate has a viscosity in the range of 0.5 to 10.0 Pa·s measured at 23° C., and the acrylic polymer has a weight-average molecular weight in the range of 300,000 to 700,000.
摘要:
According to one embodiment, an ultrasonic diagnostic apparatus which comprises an ultrasonic transmission/reception unit configured to transmit ultrasonic waves to a scan area including a predetermined region throughout an analysis period, receive reflected waves from the scan area, and acquire ultrasonic data associated with the scan area for each phase in the analysis period, an analysis unit configured to generate a luminance time curve associated with at least one analysis area included in the scan area by using the ultrasonic data in each phase in the analysis period and analyze a stagnant time of the contrast medium associated with at least one analysis area based on the generated luminance time curve, an image generation unit configured to generate a stagnant time image for each phase in the analysis period, with different hues being assigned to at least one analysis area in accordance with the stagnant times.
摘要:
An apparatus for ultrasonic diagnosis including a probe configured to transmit ultrasonic waves and to receive reflected ultrasonic waves, an image generator configured to generate an ultrasonic image based on the reflected waves, an image synthesizing unit configured to generate a synthetic image in which a puncture guideline, which indicates a passing line of a puncture needle inserted from a puncture adapter attached to the probe, is superposed on the ultrasonic image, a display area adjusting unit configured to adjust a display area of the synthetic image based on the passing line of the puncture needle, and a display controller configured to display the synthetic image on a monitor based on the display area adjusted by the display area adjusting unit.
摘要:
Provided is a semiconductor device in which a high concentration n type impurity region to be a conductive path and a drain electrode are disposed in an outer circumferential end of the chip to be an inactive region as a device region. Thereby, an up-drain structure is obtained without reducing the device region or without increasing the size of a semiconductor chip. The provided n type impurity region and drain electrode causes a depletion layer of a substrate to be terminated without needing an additional conventional annular region or shield metal. This is because the n type impurity region and the drain electrode also function as the annular region and the shield metal, respectively. With this configuration, a MOSFET with the up-drain structure having necessary components is obtained, while avoiding a reduction of the device region or an increase of the chip area.