Abstract: A system for adjusting keystoning in a projector may include sensing using an imaging device at least two boundaries defining a projection screen and determining a transformation to adjust the keystoning of an image projected from the projector. The image may be modified from the projector in accordance with the transformation and projecting the modified image from the projector, wherein the imaging device and the projector are maintained in a fixed relationship with respect to each other.

Abstract: A system for adjusting keystoning in a projector may include sensing using an imaging device at least two boundaries defining a projection screen and determining a transformation to adjust the keystoning of an image projected from the projector. The image may be modified from the projector in accordance with the transformation and projecting the modified image from the projector, wherein the imaging device and the projector are maintained in a fixed relationship with respect to each other.

Abstract: A clamp/alignment mechanism has: a turntable on which a recording medium is mounted, the turntable being rotated by a rotation driving device; a holding device for holding the recording medium mounted on the turntable; an aligning device for aligning the recording medium mounted on the turntable; and a driving device for driving both the holding device and the alignment device. The driving device is configured to drive the aligning device in an aligning direction along which the recording medium is subjected to alignment thereof, in cases where the holding device is driven in a holding direction in which the recording medium is to be held.

Abstract: A system for adjusting keystoning in a projector may include sensing using an imaging device at least two boundaries defining a projection screen and determining a transformation to adjust the keystoning of an image projected from the projector. The image may be modified from the projector in accordance with the transformation and projecting the modified image from the projector, wherein the imaging device and the projector are maintained in a fixed relationship with respect to each other.

Abstract: An image projection system that corrects an image to be projected onto a projection surface by sensing at least a portion of that surface, and based upon the sensed portion, determining and applying a corrective transformation to the image, after which the corrected image is projected onto the projection surface.

Abstract: A single-cylinder hydraulic shock absorber (1) is provided with an air chamber (2) which is formed by a flexible tubular member (2a) connected air-tightly to each of an upper part of a cylinder (11) and a piston rod (12) to enclose air therein. The air chamber (2a) includes at the lower end a tubular protector (23) engaged to an upper part of the cylinder (11). A flexion part (23a) in an upper end of the protector (23) is retained on an upper end surface of the cylinder (11). A seal member (3) located between the flexion part (23a) and the upper end surface includes a cored bar (33) fixed on the upper end surface of the cylinder (11) and having a dust lip (31) and an oil lip (32), and a circular air seal (5) interposed between the cored bar and the flexion part.

Abstract: A shock absorber includes a cylindrical shock absorber body, a mounting portion (4) disposed bulgingly in an outer surface of the shock absorber body, and a spring seat (3) inserted into the shock absorber body and engaged with the mounting portion (4), supporting a suspension spring. The mounting portion (4) has, on the top face, a flat face portion perpendicular to an axis of the shock absorber body. The spring seat (3) includes a cylindrical seat body (15), a seat portion (16) projected from an outer side of the cylindrical seat body (15) and an engagement portion (18) projected from an inner side of the cylindrical seat body (15). Further a travel stop device is disposed between the spring seat (3) and the mounting portion (4), thereby to stop relative rotation and upward/downward-direction travel thereof.

Abstract: A single-cylinder hydraulic shock absorber (1) is provided with an air chamber (2) which is formed of flexible tubular member (2a) to connects in an air-tight condition with the upper part of the cylinder (11) and the piston rod (12) and enclosing air therein. The flexible tubular member (2a) includes a tubular rolling diaphragm (21), a tubular piston pipe (22) connected air-tightly to a lower end of the rolling diaphragm (21), and a tubular protector (23) connected air-tightly to a lower end of the piston pipe (22). The protector (23) is engaged on the upper part of the cylinder (11) in such a way as to retain the flange part (23a) of the upper end of the protector (23) on an upper end surface of the cylinder (11). A seal member (4) is interposed between the protector (2) and the cylinder (11).

Abstract: A first cylindrical member (23) is fitted into an outer periphery of a hydraulic cylinder (1) and supported by a stopper (24). A seal (3) is interposed between the outer periphery of the cylinder (1) and the first cylindrical member (23). A second cylindrical member (22) having a larger diameter than the first cylindrical member (23) is disposed on the outside of the first cylindrical member (23) and connected in an airtight manner to the first cylindrical member (23) by welding. A lower end of a diaphragm (21) is connected in an airtight manner to an outer periphery of the second cylindrical member (22).

Abstract: A recording medium producing method comprising a step of coating a coating liquid which is a mixture of an inorganic fine particle dispersion and a water-soluble binder on a support, wherein the inorganic fine particle dispersion is prepared by a process comprising the steps of heating the inorganic fine particle dispersion at a temperature of from 45° C. to 60° C. for a time of from 0.5 to 5 hours, standing the inorganic fine particle dispersion at a temperature of from 10° C. to 40° C. for a time of from 0.5 to 5 hours, and mixing the inorganic fine particle dispersion is mixed with the water-soluble binder. This invention provides a method for producing a recording medium for ink-jet recording by supplying a coating liquid which is stable in the viscosity Without increasing during standing period and a recording medium produced by the producing method which has no coating defect and gives high image density.

Abstract: A piston rod (3) is connected to a piston (2) in a cylinder (1) and projects axially from the cylinder (1). A rod guide (7) guiding the piston rod (3) in an axial direction and a ring shaped member (5) disposed in the vicinity of the rod guide (6) are respectively fixed to the cylinder (1). An oil seal (6) for the piston rod (3) comprises a flange portion (21) and a lip portion (20) projecting from the flange portion (21) so as to be in contact with the piston rod (3). By gripping the flange member (21) with the rod guide (7) and the ring shaped member (5), fitting and replacement of the oil seal (6) is facilitated. Further, by forming a space (25) in the rod guide (7) for housing the lip portion (20), stress occurring in the oil seal (6) can be suppressed.

Abstract: A gas chamber (G) and a liquid chamber (R) are separated by a free piston (2) in a cylinder (1) of a hydraulic damper. The free piston (2) comprises a hollow main body (3), a metal bellows (4) which elongates and contracts according to a pressure balance between the gas chamber (G) and liquid chamber (R), and a stopper (8) fixed to the main body (3) for preventing the metal bellows (4) from elongating beyond a predetermined length. By compensating for variation in the capacity of the liquid chamber (R) caused by a displacement of the piston (10) in the cylinder (1) by elongation or contraction of the metal bellows (4), the damping characteristic of the damper is prevented from becoming unstable due to a frictional force acting on the free piston (2). The stopper (8) prevents excessive stress from being exerted on the metal bellows (4).

Abstract: A shock absorber has a suspension spring bearing fixed securely to a cylinder. The shock absorber includes a cylinder, a suspension spring bearing on the cylinder, and a suspension spring. A suspension spring bearing includes a cylindrical shaped main body that covers an end of the cylinder, an annular spring bearing part formed on a periphery of the main body, a plurality of upper salients that project inwardly from the main body and that are spaced apart at even intervals around the circumference of the main body, in which the upper salients press against the periphery of the cylinder, and a plurality of lower salients that project inwardly from the main body and that are spaced apart at even intervals around the circumference of the main body at locations below those of the upper salients, in which the lower salients press against the periphery of the cylinder.

Abstract: A disc transfer section for transferring an optical disc by guide members and a transfer roller is disposed adjacent to an opening of a casing 110. A detector 500 for detecting the optical disc is disposed adjacent to the opening. When unloading the optical disc, the peripheral edge of the optical disc contacts with slide members so that the slide members are slid, thereby sensor switches SW1 to SW4 are appropriately switched on and off. Based on a time difference between the timings of the on/off switchings, the relation between a movement trajectory of the center of the optical disc and an axis of symmetry that is a straight line indicating a transfer direction at the center of the opening is judged in order to control the drive of a transfer motor according to the movement trajectory. The amount of advancement when the unloading is completed is kept constant.

Abstract: A stepping motor driving system includes: a stepping motor that rotates at a predetermined angle according to a driving pulse signal, a vibration detector that detects vibration to output a vibration signal, and a stepping motor control unit that controls the driving pulse signal, which is applied to the stepping motor, to rotate the stepping motor at the predetermined angle. The driving pulse signal includes a start-up current which is required for rotating the stepping motor at a unit angle and a holding current which maintains a rotational angle of the stepping motor rotated by the start-up current. The stepping motor control unit changes the level of the holding current according to the vibration signal which is outputted from the vibration detector.

Abstract: An information reproducing apparatus is provided with: a clamping device (900) capable of clamping and clamp-releasing a recording medium (100); a rotating device (20) for rotating the recording medium clamped by the clamping device; a reading device (30) disposed opposite to an information record surface of the recording medium for reading information recorded on the information record surface of the recording medium; a driving device (34, 34D, 32) capable of moving the reading device in a radial direction of the recording medium; and a linkage device (24, 83, 85) for linking a clamping or clamp-releasing action by the clamping device with a movement of the reading device by the driving device.

Abstract: A plasma display device such that fluctuation of discharge start voltage and lowering of luminance would not easily occur, the burning phenomenon of the screen is suppressed, and excellent reliability and long life can be secured, and a method of producing the same, are disclosed. The plasma display device comprises a first panel (10) provided with discharge sustaining electrodes (12) and a dielectric layer (14) on the inside thereof, and a second panel (20) laminated on the first panel (10) so that discharge spaces (4) are formed on the inside of the first panel (10), and the trap density and/or the movable metallic ion density in the dielectric layer (14) is not more than 1×1018 pieces/cm3, preferably not more than 1×1017 pieces/cm3.

Abstract: An optical pickup 200 is arranged between optical discs 10A and 10B rotatably supported with the recording surfaces 10Aa and 10Ba facing each other, the optical pickup being movable along the recording surfaces 10Aa and 10Ba. A laser beam of two wavelengths emitted from a semiconductor laser 201 is respectively reflected in opposite directions by a polarized beam splitter. The reflected laser beams are respectively condensed on the recording surfaces 10Aa and 10Ba via objective lenses, and the laser beam traveling back along the same optical axis is received and processed. No moving member is required, which enables downsizing.

Abstract: A method of producing an ink-jet recording sheet containing the steps of: (a) coating a water-based coating composition A to form a layer on a non-absorptive support, the coating composition A containing a hydrophilic binder and inorganic microparticles having an average particle diameter of primary particles of not more than 30 nm, (b) drying the coated layer so as to form a porous ink absorptive layer, and (c) applying a water-based coating composition B on the porous ink absorptive layer across a direction perpendicular to a conveying direction of the non-absorptive support employing a slot nozzle spray device, the slot nozzle spray device having: (i) a coating nozzle for supplying the water-based coating composition B; and (ii) a gas nozzle for ejecting a gas to an aperture portion of the coating nozzle, wherein the water-based coating composition B has a dynamic surface tension of 20 to 55 mN/m.

Abstract: In a display apparatus for presentation including an image display device 30 that allows for moving a selection marker across a plurality of menu items arranged in vertical and horizontal directions and displayed on a screen 1 in accordance with received angular velocity information, a menu item to which the selection marker should be moved is determined in accordance with the number of cycles of angular velocity sampling during which the move distance of the pointing device obtained for every sampling cycle from the angular velocity information exceeds a predetermined value continuously. This improved the inconvenience to use with a conventional pointing device in which a distance by which an object should be moved on the display screen is proportional to the entire distance over which the pointing device was moved, calculated from angular velocity; thus, the operator has to tilt the remote controller incorporating a gyroscope to a large extent to move the object by a long distance on the screen.