Abstract: A method and system for improving the contrast ratio of a projected image. An asymmetric aperture stop improves the contrast ratio of a projected image. Using slightly offset projection, the majority of the on-state projection light from the modulator array passes through a region that is not centered in the projection lens pupil. The blocked region of the asymmetric aperture is oriented toward the illumination path and away from the specular reflection path. The asymmetric aperture is able to block a significant portion of the diffracted light using the blocked region, without blocking much of the desired projection light passing through the remainder of the aperture. The result is that dark regions of the image become significantly darker, while light regions remain about the same. The same effect occurs without offset illumination.

Abstract: A light amount control apparatus includes a pair of light amount control plates arranged at side edge portions of a light path, a driving device having a drive rotating shaft, and a transmitting member for transmitting rotation of the drive rotating shaft to the light amount control plates. The light amount control plates are supported by the rotating support shafts at two side edges of the light path to pivot in an advancing direction of the light path. The drive rotating shaft is arranged substantially parallel to the rotating support shafts. A transmitting member includes a first gear assembly connected to the drive rotating shaft, and a second gear assembly rotated in a direction reverse thereto. One light amount control plate is fixedly supported by the first gear assembly, and the other light amount control plate is fixedly supported by the second gear assembly.

Abstract: A projection type display apparatus comprises a rod type integrator 6 having a solid rod structure, in which light being emitted from a lamp and entering an entrance face 6a, as a focal plane, at one end of the solid rod is guided by being internally reflected therein, and is emitted from an exit face 6c as a further focal plane at the other end of the solid rod. A parallel glass plate is attached to the exit face 6c. The glass plate 11 has a flange-shaped extension portion 11a, which extends from periphery of the solid rod, and which serves as a holding portion for holding the integrator. This realizes little or no loss of light to be caused by light leakage outside the solid rod, thereby preventing the integrator from decreasing light use efficiency. Furthermore, the exit face 6c, as the further focal plane, of the solid rod is prevented from having e.g. dust deposited thereon, thereby causing no influence on deterioration of projected images.

Abstract: An image projection apparatus is provided which includes a projector, image source and reflective element. The reflective element is capable of being rotated by a mechanism housed within the reflective element. Light projected from the projector and through the image source is directed to the relective element and reflective onto a surface for viewing. The rotation of the reflective element creates reflected images which move in a desired direction across the viewing surface.

Abstract: A lens cover set, used with a lens disposed on an electronic product, includes a lens cover and a lens jacket. The lens cover is disposed on a housing of the electronic product and is used for containing the lens. The lens jacket is installed on the lens cover adjustably and hoops the lens by leaving a gap. By way of adjusting a relative position between the lens jacket and the lens cover so that the gap can be modulated.

Abstract: A drape (101) for a surgical microscope (100) is attached to the surgical microscope (100) with a holding device (103) in the region of the surgical microscope main objective (104). The holding device (103) can accommodate a cover element (105). A tongue-shaped section is provided on the holding device (103) which applies a spring force to an outer peripheral surface of the surgical microscope main objective (104) when the holding device is arranged on the surgical microscope main objective (104) so that the holding device is held force-tight and friction-tight on the surgical microscope main objective. The cover element (105) can be inserted laterally into the holding device (103).

Abstract: A weather and corrosion-resistant reflector with high overall reflection in the visible and infrared wavelength ranges. The reflector contains a reflector body with a reflection surface of an aluminum or aluminum alloy or a reflector body with a reflection coating of an aluminum or aluminum alloy. The reflector also contains an outer, final transparent protective layer of a sol-gel coating which is thicker than 1 ?m. The transparent sol-gel coating is a polymer of cross-linked inorganic siloxanes with alcohol groups that are bonded to the silicon with a carbon bond. The sol-gel coating is produced in a sol-gel process and, after having been applied to the reflector body, is dried and hardened using heat. The protective layer has excellent resistance to weather, corrosion and abrasion.

Abstract: An optical device which generates an optically variable image, the image being optically variable in that it varies according to the position of observation, is manufactured by dividing an optically invariable image into multiple pixels. Color component values are determined for each pixel. For each of the pixels of the optically invariable image, there is determined an associated pixel surface structure which has a three-dimensional surface shape and curvature which is related via a mathematical of computer algorithm to the color component values of the associated pixel in the optically invariable image, each pixel surface structure being an individual reflective or diffractive surface structure which produces an observable optical effect. An assembly of the reflective or diffractive pixel surface structures is produced which when illuminated generates a plurality of observable optical effects which combine to form an optically variable reproduction of the optically invariable image.

Abstract: A device for providing illumination in conjunction with a sprinkler system has a body with an opening through it and at least one appendage extending from the body. The device takes on the appearance of a living thing, such as a flower, creature, or three-dimensional art. The opening in the body allows for the passage of liquid from the sprinkler system through the illuminator and provides a means for mounting the device near plants and flowers. A light source, preferably a light emitting diode, is embedded in the device itself and provides the illumination source. The opening includes a roughened surface along a portion of its length, which helps to refract the light emitted from the light source and adds to the quality of the display. A pivoting head assembly allows a user to adjust the pattern of liquid spray and also provides an easy means of maintenance.

Abstract: A combination cap and shoe set is provided wherein each of the cap and shoe include illuminated regions. For example, the brim of the hat may be illuminated in its entirety in a particular color and the sole of the shoe may be illuminated in a complementary color such that a person wearing the cap and shoe of the invention in low light situations may be readily visible. The sole of the shoe may also be substantially uniformly illuminated and the illumination may be controlled independent of any walking motion by the wearer by a manual push-button switch.

Abstract: A portable, hand-held, electrically powered, high intensity directed light beam generating device for use as a replacement for a pyrotechnic flare for search and rescue, especially in a marine environment. The light intensity is generated by a xenon strobe flash tube in a covered, mirror reflective housing that allows for a directional beam of light of less than 6 steradians. The limited radiation light direction provides a safe optical solution for the user to prevent eye damage while increasing the beam intensity and range. The light and illumination section surrounding the strobe flash tube includes thermally conductive paths for the heat generated by the flash tube to be transmitted to the outside of the housing.

Abstract: The present invention provides an illumination optical system that enables the direction and mixing of light from light emitting devices. The optical system comprises a plurality of light emitting devices that are spatially arranged in an array, wherein this array comprises one or more sections, such that the light emitting devices in a particular section emit light within a predetermined wavelength range. Through the use of a combination of macroscopic and microscopic optical systems, the illumination created by the array can be manipulated such that a desired illumination distribution is created. The macroscopic optical system provides a means for redirecting the illumination in one or more desired directions, wherein this redirection is provided by a collection of appropriately shaped and positioned reflective optics.

Abstract: A lighting apparatus comprising a support, a light source having an emission surface and disposed in the support, a lens disposed to face the emission surface of the light source, and a half-mirror film provided on at least a surface of the lens, the half-mirror film being a thin film comprising a metallic material such as aluminum, the lens being a light-focusing lens, the lens having a peripheral part and a central part, the peripheral part including a lens surface comprising a smoothly curved surface, and the central part including a Fresnel lens surface.

Abstract: A light device, for example in the form of a light panel for road signals or in the form of a motor-vehicle light, comprises an array of light sources, such as LEDs or the like. Associated to each light source is an optical system consisting of a refractive lens of a plane-convex type having a plane face facing the light source, in which a diffuser of a refractive or diffractive micro-optical type is incorporated.

Abstract: An illuminating pompon that includes a handle, a plurality of streamers extending from the handle, and at least one illuminator extending from said handle within said plurality of streamers. The illuminator being adapted to illuminate at least a portion of said plurality of streamers and is in electrical communication with a power source. In the preferred embodiment the illuminators are a plurality of light emitting diodes attached to flexible wires that are controlled with a processor within the power source such that they blink on and off in a predetermined manner.

Abstract: Disclosed is a light appliance and a cooling arrangement, comprising a light appliance and a substantially sealed enclosure for the light appliance that gives off unwanted heat into surrounding air within the enclosure during operation. The enclosure has an external wall at least part of which is thermally conductive. A medium, cooler than the external wall of the enclosure, contacts the external wall. An air circulating device is provided for circulating air, heated by the electrical appliance or by the air circulating device, to the thermally conductive portion of the external wall for removing heat from the air by thermally dissipating the heat into the cooler medium through said thermally conductive portion.

Abstract: A cooling air gathering plate for enhancing a cooling effect of a projector lamp is disclosed. The gathering plate has a notch to collect the cooling air at a lampwick, a welding point of the lamp, and/or any high temperature position of the lamp. A center line of the gathering plate matches together with an axis of the lamp. The gathering plate can be fixed on the lamp, a lamp reflector, or a holder for fixing the gathering plate to guide the cooling air passing through the high temperature position of the lamp.

Abstract: A lamp assembly for providing ambient light display includes an intermediate hollow cylinder. A front hollow cylinder is removably attached and extends from one end of the intermediate cylinder. A rear hollow cylinder is integrally joined to and extends from an opposite end of the intermediate cylinder. The rear cylinder supports a light fixture connected to a source of electrical power from an inner wall thereof. The light fixture receives a light bulb which projects into an interior of the intermediate cylinder. The front cylinder is attached to the intermediate cylinder to define a first circular gap between the front cylinder and the intermediate cylinder. The rear cylinder is joined to the intermediate cylinder to create a second circular gap between the rear cylinder and the intermediate cylinder such that when the light bulb is energized, ambient light is emitted directly through the front cylinder, the rear cylinder, and the first and second circular gaps.

Abstract: Housings for emergency unit luminaires may be configured to receive both fixed and movable optical assemblies for mounting, allowing for the manufacture of a single housing for production of differing lighting products or lamp assemblies. Additionally, structural elements of a housing may support printed circuit boards, electronics, test devices, and the like, as well as permit electrical connections to be accomplished during assembly of front and back portions of the housing without the need for fasteners requiring tools.

Abstract: The present invention discloses a waterproof lampshade structure capable of automatically discharging any rainwater that enters into the lampshade as to prevent any possible affection to the related circuits of a lamp as well as dispersing the heat produced by a light bulb from the inside of the lampshade to the outside as to effectively lower the temperature of the lampshade and greatly improve the life of the light bulb and related components and circuits.

Abstract: The electrical candle lamp comprises a translucent candlestick member having a lower end and an upper end, a support member provided at the lower end of the candlestick member, and a light emitting assembly secured to the upper end of the candlestick member. The light emitting assembly includes a base portion, a light emitting device mounted to the base portion and an electronic control unit for controlling operation of the light emitting device. The electronic control unit includes an ambient light sensor provided for automatically turning the light emitting device on if ambient light level is below a predetermined level and for turning the light emitting device off if ambient light level is above the predetermined level. The ambient light sensor protrudes through an opening formed in an outer surface of the base portion of the light emitting assembly and is exposed to ambient light.

Abstract: The present invention is to provide a structure of an illumination apparatus comprising a sucker mounted in a bottom of a base thereof to provide the base with an adsorptive power. A power supply housing is extended upwardly on a central top portion of the base, wherein a power supply part is mounted in the power supply housing for providing with the electric power and a switch is mounted on the outside of the power supply housing so as to turn on or turn off the electric power provided by the power supply part. An adjustable device is mounted on a top of the power supply housing, wherein a housing is mounted on one end of the adjustable device and a light emitting device is mounted in the housing so as to twist the adjustable device to provide with the purpose of multi-angle adjustments.

Abstract: A headlamp adjusting system, particularly for motor vehicles, includes a headlamp body and optical system having reflector and regulating elements for adjustment and fixation of the reflector. The reflector is carried by a part of a pivot holder that, by means of a weakening hinge, allows swinging movement of the central portion of the pivot holder. The fixed portion of the pivot holder is connected to the headlamp body. A socket for holding an end of the regulating element is provided at the free side of the pivot holder. For adjustment of the reflector in two mutually different planes, the central part of the pivot holder is swingable by means of two hinges.

Abstract: A license plate system for motorcycle, car, truck or boat including a row of lights supported along an edge of a clear plastic channel so that light from the row enters the interior of the pane through an edge surface of the panel. The front surface of the panel has an area that is textured to form the alpha-numeric characters of the license. The panel is sufficiently thin ( 1/8 to ½ inches) so that Light from the row of lights is confined between the front and rear surfaces of the panel except an area of the front surface that is textured. Therefore the contrast between the illumination of the textured area compared to the smooth area is very pronounced.

Abstract: An automatic dual-control light emitting assembly for vehicle wheels includes a casing defining a receiving space for receiving at least one battery cell therein; a circuit board having a light-emitting device provided thereon with one electrode electrically connected to a first pole of the battery cell under control of a light sensor, which acts only in a dark environment; a lead frame electrically connecting the circuit board to a second pole of the battery cell; and an elastic metal contact member having an end electrically connected to the circuit board and another end contacting with the lead frame only by a centrifugal force to thereby electrically connect the other electrode of the light-emitting device to a second pole of the battery cell. With the light sensor and the elastic metal contact member, the light-emitting device emits light only when the vehicle wheel rotates in a dim or dark ambient environment.

Abstract: To provide a rear lamp unit for a vehicle which is provided with a desired cut pattern on an outer lens so that the light-emitting area can be increased. A rear lamp unit is provided with upper and lower outer lenses for guiding light emitted from light-emitting diodes to the outside the vehicle. The upper and lower inner lenses are provided between the light-emitting diodes and the upper and lower outer lenses, respectively, and the upper and lower inner lenses are disposed at locations apart from the upper and lower outer lenses, respectively.

Abstract: In accordance with one embodiment, a light mixing and homogenizing apparatus includes a first tubular member and a second tubular member. The first tubular member has a reflective interior surface, a polygonal cross section with a first maximum diameter, and a first number of sides. The first tubular member has a first end and a second end with the first end configured to receive a plurality of incoming light beams. The second tubular member has a reflective interior surface, a polygonal cross section with a second maximum diameter smaller than the first maximum diameter, and a second number of sides that is different from the first number of sides. The second tubular member has a first end disposed adjacent to a first tubular member second end. The second tubular member second end is configured to output a homogeneous light beam comprising a mixture of the plurality of incoming light beams.

Abstract: A multiple LED based lighting device for commercial indoor or outdoor architectural applications is disclosed. The lighting device uses multiple LEDs which are arranged in a symmetrical array in order to combine their light output. The LEDs are supported in a fixed position and have a conical reflector to assist in focusing the light output. A heat sink is attached to the LEDs to allow for use of high power for greater light output. The multiple LEDs are mounted relative to an optic fiber which has a core and cladding material to retain light based on total internal reflection. The light output from the LEDs are cast on the optic fiber which may provide side lighting effects from the perimeter of the optic fiber or emit light from the opposite end of the optic fiber.

Abstract: An illumination unit is provided which includes a glass rod including a parabolic reflection surface, a light incident surface facing the parabolic reflection surface, a concave portion formed inwardly in the light incident surface at a position of a focal point of the parabolic reflection surface, and a light guide portion facing the parabolic reflection surface and having a rectangular section. An LED module is disposed at the focal point of the parabolic reflection surface and emitting light to the parabolic reflection surface through the concave portion. A surface of the light guide portion parallel to the light incident surface is stepped from the light incident surface in a direction in which the rectangular section of the light guide portion decreases.

Abstract: An illumination system including a light source, light guides coupled to the light source, each including an input surface and an output surface, emissive material positioned to receive light from at least one light guide, and an interference reflector positioned such that the emissive material is between the output surfaces of the light guides and the interference reflector is disclosed. The light source emits light having a first optical characteristic. The emissive material emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The interference reflector substantially transmits light having the second optical characteristic and substantially reflects light having the first optical characteristic.

Abstract: A light-conductive board and a rear light module using the light-conductive board is disclosed. The light-conductive plate having a light-emitting face, a light-reflecting face, and at least a light-entering face and the light-reflecting plate adhered onto the external of the light-reflecting face of the light-conductive board, an optical film including a divergent lens and a convergent lens mounted onto the external of light-emitting face of the light-conductive board, a lamp reflector which encloses a lamp source, and the light-entering face of the light-conductive board corresponding to the circumferential edge of the light-entering recessed region of the lamp source adjacent to the light-emitting face or one of the face of the reflection face at least forms into a protruded section.

Abstract: An elastic member (3b) is fixed to a space between a front surface of an intermediate frame (4a) and a rear surface of a liquid crystal panel (2) constituting a liquid crystal display module (12), or a space between a rear surface of an upper frame (1) and the rear surface of the liquid crystal panel (2) constituting the liquid crystal display module (12). Alternatively, the elastic members (3b) are fixed to both of the spaces. A peak portion (14a) of the elastic member (3b) is formed to possess a flexible structure. The liquid crystal display module is configured to hermetically seal the space between a back light (11a) and the liquid crystal panel (2), the space between the upper frame (1) and the liquid crystal panel (2), or both of the spaces.

Abstract: A backlight unit for enhancing the luminance uniformity is provided. The backlight unit includes a plurality of fluorescent lamps arranged in a light-emitting surface, each of the plurality of fluorescent lamps having a bent structure; and at least one conic-shaped structures for reflecting an incident light, the conic-shaped structure being surrounded by the bent structure of at least two of the plurality of fluorescent lamps.

Abstract: A tracer lamp unit for use with a DSX system is disclosed herein. The tracer lamp unit includes an elongate housing with a generally rounded cross section wherein the housing is configured to be secured within an opening defined by a piece of telecommunications equipment and held within with a press-fit, wherein the housing provides structural support for a lighting arrangement including a lens, a capacitor, a resistor, leads, and a flashing control circuitry, the housing further providing structural support for spring members including tail portions and electrical contact portions, wherein the electrical contact portions engage the leads to provide an electrical connection therebetween. In another embodiment, the tracer lamp unit comprises an LED flashing module that houses a lens, a capacitor, a resistor, leads, and a flashing control circuitry, wherein the tracer lamp unit housing is adapted to slidably receive, provide structural support for, and be separable from the LED flashing module.

Abstract: An alignment of sockets enabling to engage with a large number of Christmas lamps includes a hollow rectangular seat having a plurality of circular openings for engaging within a plurality of lamps, and opened bottom, a pair of first semi-circular grooves in the bottom and an elongate slender slot in a lateral wall for disposing an elongate copper plate, a plurality of inverse U-shaped copper plate spacedly engaged between each pair of adjacent lamps, a pair of electric wires engaged with first semi-circular grooves a pierced by the tips of the elongate copper plate and one of the inverse U-shaped plates, an elongate cover covered the opened bottom of the seat having a pair of second semi-circular grooves and plurality of rectangular for stopping against the inverse U-shaped copper plates respectively.

Abstract: A drive apparatus for an extruder with at least two co-rotating extruder screws having driveshafts includes a housing and a drive motor which is received in the housing and including a stator and a rotor. The rotor is operatively connected to driveshafts of the extruder screws and has arranged thereon a toothed surface in direct engagement with complementary toothed surfaces of at least two of the driveshafts of the extruder screws.

Abstract: Apparatus and method for mixing a fluid dispersion disposed in a container having either a cylindrical or a square shape.

Abstract: An improved apparatus and method for balancing paint mixers including pivotably supporting a mixing frame assembly and suspending the assembly by at least one spring for mixing a liquid coating using both spin and orbital rotational movements and adjusting the lowest rotational resonant frequencies of the mixing frame assembly to be substantially below the lower of a pair of forcing function frequencies corresponding to the spin and orbit velocities. Optionally one or more dampers may be used to damp pivoting movement of the mixing frame assembly.

Abstract: To provide a portable timepiece capable of interchanging a part at a surrounding of a crown when a screw lock function is deteriorated. A premise is established by a portable timepiece screwing to lock a crown urged in a direction of separating from a case body by a coil spring (urging member) included in a winding stem pipe to the winding stem pipe attached to the case body. The winding stem pipe includes a winding stem pipe main body inserted into a pipe attaching hole of the case body and fixed in liquid tight by using a brazing member, and a ring fitted to a case body outside projected portion of the main body removably by being stopped to rotate and provided with a male screw portion to which the crown is removably screwed at an outer periphery thereof. A ring holding member is pinched between the ring and a holding portion of the case body outside projected portion.

Abstract: This device comprises a first axial retention shoulder secured to the case, adjacent to a cylindrical seat, a second, opposite axial retention shoulder formed by one face of an annular groove secured to the rim, an annular retention element made of polymer bearing against each of said shoulders, said first shoulder being adjacent to the base of a conical surface, secured to the case, for the axial introduction of said annular retention element engaged with said annular groove. Said annular retention element forms an endless ring whose section is divided in the radial direction into two portions of which one is, perpendicularly to the plane of said endless ring, substantially thinner than the other, these two portions being intended to interact respectively with said first shoulder and second shoulder.

Abstract: The invention is an apparatus for determining a temperature at which a phase change occurs in a fluid sample, a method for measuring a temperature at which a phase change occurs in a sample and a sample cell.

Abstract: An apparatus and method for measuring and mapping thermal conductivity and thermal diffusivity at micrometer scale resolution. The apparatus and method utilize a mode-locked femtosecond pulsed laser in a pump-probe configuration to analyze time-domain thermoreflectance of a specimen to evaluate its thermal conductivity in micro-scale, so that, if desired, an image of thermal conductivity distribution of micro-scale regions may be obtained therefrom. A multi-layer, complete three-dimensional model that takes into account the entire three-dimensional heat flow in cylindrical coordinates enables micro-scale measurements to be made at an accuracy of about 90% of well-accepted values.

Abstract: A ceiling mount x-ray imaging assembly is provided comprising a track assembly. A carriage assembly is mounted to the track assembly and allows linear movement of said carriage assembly. An extendable column is rotatably mounted to the carriage assembly and has a carriage mount end and a patient directional end. The carriage mount end is rotatable about a vertical axis located at a vertical rotation location positioned in proximity to the carriage mount end. An x-ray tube assembly is rotatably mounted to the extendable column adjacent a patient directional end and is rotatable about a horizontal axis located at a horizontal rotation location positioned. A communication cable assembly provides communication between the x-ray tube assembly and the carriage assembly. The vertical rotation location and the horizontal rotation location are positioned at opposing ends of the extendable column.

Abstract: The invention relates to a method for manufacturing packs (1) characterized in that it comprises steps according to which: a packaging film is unwound; a first gusset is formed on the unwinding packaging film; a second gusset is formed on the unwinding packaging film, the second gusset being formed on the same edge of the unwinding film as the first gusset (3), said second gusset being associated with a closure assembly to form an opening indicator.

Abstract: A zipper strip for a reclosable bag or package includes a male interlocking profile and a female interlocking profile. The male interlocking profile includes a male interlocking member and a male web coextruded therewith. In like manner, the female interlocking profile includes a female interlocking member and a female web. The male interlocking member snappingly engages into the female interlocking member to join the profiles to one another. One of the male and female webs is wider than the other in at least one of two directions from the male and female interlocking members, the greater width being represented by at least one flange extending widthwise beyond the other web. The zipper strip is designed to be attached to thermoplastic sheet material by sealing the at least one flange thereto without sealing the male and female webs to each other. Methods for securing the zipper strip to thermoplastic sheet material, and for making packages on a horizontal form-fill-and-seal machine, are also disclosed.

Abstract: A slider device having contoured top and sidewalls is disclosed for use with a resealable package. In a first embodiment, the slider device includes an engagement structure for engaging and interlocking first and second closure profiles of a resealable closure mechanism. The engagement structure includes a first protrusion and a second protrusion depending from the top wall of the slider device for engaging first and second closure profiles of a resealable closure mechanism. The first and second protrusions selectively open and close the resealable closure mechanism as the slider device is moved from a first position to a second position. In a second embodiment, a slider device is disclosed having first and second slide channels that engage first and second closure profiles. The first and second slide channels selectively open and close the resealable closure mechanism as the slider device is moved from a first position to a second position.

Abstract: A mounting structure is provided for mounting a member to be fixed, on a stationary member, while always accomplishing high position precision even in such cases of fastening of members that a tightening work of bolt is carried out several times, that the members are fixed after repetition of fine adjustment of the fixing position of the member to be fixed, and so on. A screw hole for fixing according to the present invention is shaped so that on a fixing surface of the stationary member provided with the screw hole a region of an annular recess is continuous from the screw hole and annular in the external edge part of the opening portion of the screw hole, and so that when an inside diameter of the through hole in the fastened member is ?a and a nominal diameter of the screw hole is b, a width c of the recess in the radial direction of the screw hole satisfies the relation of 0.5×(?a?b)<c?2.0×(?a?b).

Abstract: The invention relates to a hydrodynamic bearing system for the rotary bearing of a spindle motor particularly to drive the platter(s) in a hard disk drive having a stationary shaft, a bearing sleeve journaled to be rotatable about the axis of the shaft and a cover plate fixedly attached to the bearing sleeve to cover the bearing sleeve in the region of the free end of the shaft, the surfaces of the shaft, the bearing sleeve and the cover plate facing each other and spaced apart from each other by a bearing gap forming at least one radial bearing region and at least one axial bearing region. The invention is characterized in that the cover plate has a cylinder-shaped shoulder concentric to the axis and having a thread to receive a fastening screw which is rotatably accommodated in a recess in the end face of the shaft in such a way that the bearing gap continues between the inner surface of the recess and the outer surface of the shoulder.

Abstract: An anti-vibration device for a motor bearing at least comprises an axial barrel core, a shaft and a shock retard piece. The axial barrel core has a recess at the bottom thereof with the recess having a flat top. A bearing is received in the axial barrel and the shock retard piece is placed on the top of the recess so that a space is formed between the shock retard piece and the recess available for the shock retard piece being deformed. The shaft is movably attached to the barrel core to contact with shock retard piece. When the shaft rotates, vibration can be retarded to allow the shaft providing a steady rotation by way of support of the shock retard piece.

Abstract: The present invention discloses a bearing assembly capable of assuring mechanical strength and reducing a friction coefficient and stress concentration, and a method for manufacturing the same. The present invention comprises a spherical journal and a hemispherical bearing that is made of a fiber reinforced composite and has a bearing surface for establishing a spherical pair with the spherical journal. The fiber reinforced composite can be constructed by arranging a uni-directional prepreg, woven fiber prepregs and staple-fiber prepregs in a variety of configurations, and thermoplastic resin particles or self-lubrication particles are uniformly provided on the bearing surface. It is possible to alleviate stress concentration generated on the bearing surface by forming a plurality of air channels capable of imparting directivity on an outer surface of the hemispherical bearing.