摘要:
A displacement sensor precisely detects displacement of a moving body in a rectilinear movement direction even if the moving body rotates. The sensor includes a detector and a magnet. The cross sectional area of the permanent magnet in a plane perpendicular to an axis, which extends in the rectilinear movement direction, varies in the direction of movement. The permanent magnet is magnetized in the rectilinear movement direction. The detector is located so that magnetic flux passes through a detection face of the detector substantially perpendicularly.
摘要:
A nonaqueous resin dispersion in which particles of a low molecular weight polyolefin are finely and uniformly dispersed, which dispersion is obtained by the polymerization of a vinyl monomer (C) in the presence of 20 to 90% by weight of a substantially saturated polymer (A), based upon the total weight of the reactants (A), (B) and (C), and a low molecular weight polyolefin (B) dispersed finely therein. The resin dispersions of the present invention contain the low molecular weight polyolefin finely and uniformly dispersed such that it has an average particle diameter of not more than 10.mu. and preferably not more than 1.mu.. According to the Invention, the polyolefin is more finely and uniformly dispersed than previous dispersions produced by mechanical melt-dispersion of low molecular weight polyolefin and a resin.
摘要:
A lens barrel includes a stationary tube secured to the inner side of a stationary lens barrel member with a given space kept between them, and a motor disposed within the space. A helicoidal surface is arranged along the inner circumference of the stationary tube to be in screwed engagement with the helicoidal surface of a lens-carrying frame arranged to carry lenses which are shiftable in the direction of their optic axis, and a connecting member extends to the inner circumference of the stationary tube to cause the rotation of a rotary tube which has a toothed part engaging the output gear of the motor to be transmitted to the lens-carrying frame.
摘要:
In a file-accessing system for use in an information-processing apparatus, an original file name and its simplified file name constitute one piece of conversion data. One or a plurality pieces of such conversion data are prepared. A conversion rule is prepared from one or more pieces of conversion data. A single conversion rule may be prepared, or a plurality of conversion rules may be prepared. The conversion rule or rules are stored in a conversion rule storage, with each conversion rule in the form of one file. When specific conversion rules are designated, from among the conversion rules stored in the conversion rule storage, they are loaded into a RAM area. When a simplified file name entered by the operator is received by the system, it is converted into its corresponding original file name, with the RAM area examined. In this manner, the file-accessing system enables a file to be accessed with a simplified file name. In addition, since the file name conversion is executed by use only of the specific conversion rule, it is practically impossible for unauthorized persons to use the conversion rule. Therefore, the file can be accessed easily and yet reliable file security is ensured.
摘要:
A switching device for detecting the rotational positions of a rotary shaft including a lever rotating with the rotary shaft as a unit, and an electrically conductive plate spring having a central portion and two side portions which is bent and mounted on the lever. The two side portions of the plate spring are each formed with a movable electrical contact, and electrical contacts each juxtaposed against one of the movable electrical contacts on the plate spring are formed in fixed members respectively. Rotation of the lever brings one set of movable and fixed contacts into and out of engagement with each other to detect one rotational position, and further rotation thereof brings the other set of movable and fixed contacts into and out of engagement with each other to detect another rotational position. The plate spring is held in position in flexed condition on the lever by retaining means which has the effect of positively keeping the two contacts with each other. A rotor rotated by the lever with a certain amount of hysteresis may be provided, and the contact cooperating with one of the movable contacts on the plate spring for detecting the second rotational position may be mounted on the rotor. The rotor may further have a plurality of contacts for engaging conductors printed in the form of a comb on a printed board.
摘要:
A lens barrel includes a stationary tube secured to the inner side of a stationary lens barrel member with a given space kept between them, and a motor disposed within the space. A helicoidal surface is arranged along the inner circumference of the stationary tube to be in screwed engagement with the helicoidal surface of a lens-carrying frame arranged to carry lenses which are shiftable in the direction of their optic axis, and a connecting member extends to the inner circumference of the stationary tube to cause the rotation of a rotary tube which has a toothed part engaging the output gear of the motor to be transmitted to the lens-carrying frame.
摘要:
A built-in motorized lens mounting includes a fixed tube, a zoom actuating ring axially movably supported relative to the fixed tube, a focusing lens holder movably supported at least in the axial direction relative to the zoom actuating ring, an electric motor fixedly secured to the zoom actuating ring, and a driving power transmitting system using the rotation of the motor as a drive source to move the lens holder axially relative to the zoom actuating ring.
摘要:
A method and apparatus for measuring a lipid peroxide, in which a sample containing lipids is subjected to a liquid chromatography to separate the lipids into lipid classes. The lipid classes are brought into contact with a luminescent reagent which specifically reacts with a lipid hydroperoxide contained in the lipid classes to generate a light in an amount corresponding to a content of the hydroperoxide. The light is optically detected by a photodetector.
摘要:
In the disclosed mechanical mounting for a zoom lens, a body tube and a single actuator barrel are provided with an intermediate sleeve therebetween, and a variator lens cell and a rotary ring are arranged inside the body tube, whereby a driving torque for the variator lens cell is transmitted from the intermediate sleeve to the rotary ring.