Abstract:
A first and a second static-pressure gas bearings supporting a rod at two locations in the axial direction in the non-contact manner are provided, in which the first static-pressure gas bearing is fixedly supported by a bearing housing, while the second static-pressure gas bearing is supported capable of displacement through a movable support mechanism. And this movable support mechanism has an actuator and suppresses contact of the rod with the static-pressure gas bearings by displacing the shaft center of the second static-pressure gas bearing with respect to the first static-pressure gas bearing by this actuator according to a load acting on the rod.
Abstract:
A working rod with a tip end extending into a vacuum process chamber and moving in the axial direction, two static-pressure gas bearings supporting the rod in the non-contact manner, and an internal moving body of a magnet coupling type driving mechanism driving the rod are housed in a rod housing cylindrical portion leading to the vacuum process chamber, and an exhaust portion by suction is provided at a part of the rod housing cylindrical portion so that the pressure of the rod housing cylindrical portion is lowered than the pressure of the vacuum process chamber by the exhaust from the exhaust portion.
Abstract:
A transmission screen includes a Fresnel lens sheet through which light is projected from a projector to a lenticular lens sheet arranged on a viewer side, as approximately parallel light, and the lenticular lens sheet receiving light passing through the Fresnel lens sheet, and emitting the approximately parallel light while horizontally widening, by means of a group of cylindrical lenses which are horizontally in parallel, wherein in at least one of the Fresnel lens sheet and the lenticular lens sheet, on a surface of a light diffusing substrate, in which a light diffusing material is dispersed, irregularities which constitute a lens section is formed, and in the light diffusing substrate, dispersion density of the light diffusing material differs in at least two layers in the thickness direction.
Abstract:
A method of fabricating an optical film is provided. The method includes nipping a film composed of a molten polycarbonate resin extruded in a film-forming manner from a die attached to an extruder, between a temperature-preset molding roll having an engraving pattern on the surface thereof and a temperature-preset elastic roll, and thereby transferring the engraving pattern onto the film; and allowing the film having the engraving pattern transferred thereon to travel around the molding roll, and then separating the film from the molding roll. In the method, a preset value of a surface temperature of the molding roll is adjusted within a range of Tg+20° C. or above and Tg+45° C. or below, where Tg is a glass transition temperature of the film, and a preset value of a surface temperature of the elastic roll is adjusted to Tg or below.
Abstract:
The curable composition of the present invention contains (A1) a silyl-containing ethylene/α-olefin/non-conjugated polyene random copolymer rubber which has a structural unit derived from a norbornene compound as the non-conjugated polyene with at least one specific vinyl group at the terminal and contains a specific hydrolyzable silyl group, and (B) a compound, other than the rubber (A1), having a hydroxyl group and/or a hydrolyzable group, e.g., (B1) a compound having a silanol group and/or a compound which can react with moisture to form a compound having a silanol group in the molecule. This compound improves elongation of the cured product and residual surface tackiness, and, at the same time, is high in curing speed and capable of giving the cured product of high resistance to weather. It is suitable for, e.g., adhesives, tackifiers, paints, sealants, waterproof materials, spray materials, shaping materials and casting rubber materials.
Abstract:
After a resist mask with a predetermined thickness profile is overlaid on a piezoelectric substrate, the substrate is shaped to an objective three-dimensional configuration by dry etching process using an etching gas with a differential etching rate between the piezoelectric substrate and the mask. The thickness profile may be given to the mask by reflow of masking material or by compression with a precision stamp. The substrates can be shaped to a three-dimensional configuration corresponding to an amplified thickness profile of the mask by compositional control of a reactive gas during dry etching. Since the piezoelectric material is accurately shaped to an objective form without defects, high-quality elements and devices are provided.
Abstract:
A serial-transmission type memory system with a hot swapping function is provided which is capable of replacing a defective memory module without stopping the system. One end of a row of memory modules is connected to one input-output section of a memory controller and the memory controller exerts control so that, when a failure occurs in any of the memory modules, by disconnecting the defective memory module from the memory module in its preceding stage and by sequentially connecting the memory module in the row of the memory modules in a next and onward stage and a spare memory module connected to another end of the row of the memory modules to the other input-output section of the memory controller in series through second read and write signal lines to gain access to each of the memory modules.
Abstract:
A memory system includes normal memory modules serially connected, and a backup memory module, and a switch circuit for replacing a failed one of the normal memory modules by the backup memory module. The switch circuit inserts the backup memory module in the serial connection of the normal memory modules excepting the failed normal memory module.
Abstract:
A plurality of switch connectors are arranged in each of a plurality of memory slots. Each of the plurality of switch connectors includes a first-type connector pin and a second-type connector pin. The first-type connector pin is coupled to one of a plurality of signal lines of a memory bus. The second-type connector pin is coupled to impedance matching circuits included in an load circuit. In each of the memory slots in which the memory module is not inserted, a pair of the first-type connector pin and the second-type connector pin provide flexible electric contact. In each of the memory slots in which the memory module is inserted, the first-type connector pin and the second-type connector pin are physically separated and insulated from each other. The first-type connector pin provides electric contact with module pins of the memory module.
Abstract:
In order to provide a micro-lens sheet in which unit lenses are disposed in highly accurate pitch so as to control the light diffusing characteristics of the light emission direction not only in a horizontal direction but also over 360 degrees by using the lens function of one piece of lens sheet, a micro-lens sheet has a micro-lens array section in which unit lenses are disposed in approximate matrix in a second dimensional manner on at least one surface of a base board, and the micro-lens array section is formed on only one surface of the base board, the micro-lens array section includes the unit lens having an aspherical shape, and disposition pitch of neighboring unit lenses is 200 μm or shorter.