Abstract: A lens holder includes an inner barrel for holding at least one lens, an outer barrel that is positioned outside the inner barrel and supports the inner barrel so that the inner barrel linearly slides along a central axis thereof across an inner surface of the outer barrel, and a cam barrel that rotates in a state where the cam barrel is coaxially disposed between the inner barrel and the outer barrel. The cam barrel includes at least two subunits of the same shape produced by dividing the cam barrel on a plane that includes the central axis, an operating part that passes through an operating slit provided on the outer barrel and moves at least one of the subunits to rotate the cam barrel, a helical cam mechanism that slides, via a driven part provided on the inner barrel, the inner barrel forward and backward along the central axis when the cam barrel rotates, and a locking mechanism for pulling at least one of the subunits onto the outer barrel to stop rotation of the cam barrel.

Abstract: To provide a high-brightness, small, low-cost optical apparatus which covers a wide-angle to super-wide-angle region and which reliably corrects various aberrations with a small number of lenses. At least one negative lens unit 1, a meniscus lens 2 that is convex on an object side, an aperture stop S, and a double-convex positive lens 3 are arranged in order from the object side. At least one of the lenses positioned on the object side of the aperture stop S and the positive lens 3 include respective aspherical surfaces.

Abstract: A portable magnifier has a support member having a support surface for removably supporting a portable electronic device having a display. A holder has a pair of holding portions and is connected to the support member for undergoing pivotal movement relative to the support surface of the support member. An optical element is mounted on the holding portions of the holder for undergoing sliding movement therealong. The optical element is also detachably pivotally connectable to the holding portions at preselected positions therealong to define a viewing state in which the optical element can be manually pivoted to a desired viewing position so that a user of the portable magnifier can view through the optical element a magnified version of information displayed on a display of the portable electronic device supported by the support surface of the support member.

Abstract: A magnifying glass has a size essentially equal to the size of a display panel of a cell phone or other digital device. A coupling assembly has an interior. The interior is adapted to be coupled with respect to a cell phone. The coupling assembly has an exterior. The exterior is coupled to the magnifying glass. In this manner the cell phone is coupled to the magnifying glass during the movement of the magnifying glass with respect to a display panel of a cell phone.

Abstract: A pocket sized reading device having a built in illuminating element that automatically turns on and off as the device is opened and closed. The device comprises a two piece plastic frame and a lens held within the frame.

Abstract: The invention relates to a device for the low-deformation replaceable mounting of an optical element, in particular a closure plate of an objective of a projection exposure system for microlithography for the production of semiconductor components, in a mount (12). The optical element is connected to the mount (12) at least partly via an adhesive connection. This is located between the adjacent circumferential walls of mount (12) and optical element. The mount (12) is provided with at least three support feet (14) distributed over the circumference, by means of which the optical element is mounted laterally and axially. The mount (12) is connected to the housing of the objective in an at least approximately deformation-decoupled manner via three mount bearing points (15).

Abstract: A lens device includes elastic bracing struts arranged at regular intervals which are deformed by a lens element supported in a lens barrel so as thereby to hold down a periphery of the lens element in directions perpendicular to an optical axis of the lens element with elastic force when the lens element causes a diametrical change due to environmental variations, so that the lens element is prevented from being brought into misalignment, and besides retaining its optical performance.

Abstract: A refractive optical unit is provided and has a regulator mechanism that can easily align between a lens of a lens group to be fixed in a housing and a lens of a lens group freely moving along the optical axis at their lens centers, by operation. In a lens holder for the lens group to be fixed in the housing, an operation piece is provided that protrudes outward through an opening of the housing. Furthermore, an elongate hole is provided in a position opposite to the operation piece with reference to a third lens group as viewed from the operation piece side. A guide rod is inserted through the elongate hole so that the lens holder can be parallel moved along the lengthwise of the elongate hole or rotated about the guide rod on a plane orthogonal to the optical axis, thereby aligning a lens of the lens group with a lens of another lens group at its centers.

Abstract: In a lens system assembling method, the spacing between two mutually opposing lenses are set more accurately. The method includes the steps of: holding a first lens with a lens holding member, with the opposing lens face of the first lens being brought into close contact with a first receiving face of a spacing jig, and a lens receiving face of the lens holding member being brought into close contact with a second receiving face of the spacing jig; removing the spacing jig from the first lens and the lens holding member holding the first lens; and setting the spacing between the mutually opposing first and second lenses at a predetermined distance by abutting the second lens to the lens receiving face of the lens holding member such that the opposing lens face of the second lens is brought into close contact with the lens receiving face.

Abstract: A lens support structure includes a third lens 53, a fourth lens 54, a first frame 50, and an adhesive agent 58. The first frame 50 has a first portion 55 to which the third lens 53 is fitted and a second portion 56 where the second lens element is disposed inside the inner periphery thereof. The adhesive agent 58 fixes the fourth lens 54 to the first frame 50. The material of the fourth lens 54 has lower stiffness than the material of the third lens 53, or has a larger coefficient of linear expansion. A gap S is formed in the radial direction between the fourth lens 54 and the second portion 56. The inside diameter of the first portion 55 is different from the inside diameter of the second portion 56.

Abstract: A fine adjustment mechanism includes a first frame, a carrying portion and a first connecting portion. The first frame has a first opening. The carrying portion is adapted to assemble outside an optical element for fixing it. The carrying portion has a carrying plate disposed in the first opening and extends from the first opening towards a side of the first frame. The first connecting portion is located in the first opening and connected between the carrying plate and the first frame. The first connecting portion is capable of generating an elastic torsion around the axis in a first direction. By using the theorem of elastic torsion, the present invention makes the carrying portion rotate around the axis of the first connecting portion only and is able to avoid the offset problem occurred at the intersection of the axes of the carrying portion and the first connecting portion during adjusting.

Abstract: An optical apparatus includes a photographic lens and a vibratory actuator configured to move the photographic lens. The vibratory actuator includes a vibration member having an electro-mechanical energy conversion function for generating vibration and a contact member contacting the vibration member. At least one press-contact surface of the vibration member and the contact member is configured into an arc shape having a central axis corresponding to a moving direction of the photographic lens.

Abstract: A barrel assembly for a lens device includes a stationary barrel, first and second barrel components, and a coupling pin. The stationary barrel surrounds an axis and has a first surface, and a second surface opposite to the first surface, and a guide slot formed through the first and second surfaces. The first barrel component engages sleevingly the stationary barrel and has a third surface. The second barrel component engages sleevingly the stationary barrel, and has a fourth surface that faces the second surface, and a cam slot that is formed in the fourth surface, and that is cooperatively defined by first and second slide surfaces, and first and second abutting portions. The coupling pin extends radially from the first barrel component through the guide slot in the stationary barrel to the second barrel component, and has a retaining section slidable along the first and second slide surfaces, and a reinforcing section extending between the first and second abutting portions.

Abstract: An optical apparatus including an optical system for bending an optical path in a first direction into a second direction substantially perpendicular to the first direction; and a prism for bending the optical path in the second direction with a plurality of reflecting surfaces so that the optical path spirals and leads into a third direction substantially perpendicular to the second direction.

Abstract: A magnetic disk can be magnetized simply and in a short time. A magnetic disk producing method produces a magnetic disk having a central hole, an outer radius, a plurality of annular recording tracks formed in a direction from the central hole toward the outer radius, each recording track including a plurality of sectors, and a recess formed between adjacent recording tracks to a predetermined depth. The method includes providing a magnetizing master disk magnetized in a predetermined pattern of alternating N and S polarities extending in a direction from a center of the master disk toward an outer radius thereof; and superposing the master disk on the magnetic disk to magnetically transcribe a magnetic signal to the recording tracks based on the predetermined pattern.

Abstract: An audio or other programme signal is modified to provide protection against copying on a magnetic tape recorder. The signal from a source (10) is amplified (16) and then subjected to Fourier analysis (11) to determine the signal amplitude in a plurality of subbands across the audible range. The subband containing the component of greatest magnitude is selected on an adaptive basis and applied to a stored psycho-sensorial model (12), which determines the maximum amplitude of interference which can be masked by the selected subband. An anti-copy signal is generated (14) by complex division of the desired interference by a stored representation of the response of a tape recorder (13).

Abstract: Provided is a self servo writing method of writing a final servo signal based on a reference servo signal in a hard disk drive, and more particularly, a method of writing a uniform final self servo signal by compensating for a non-uniform width of tracks where a reference servo signal is written, a hard disk drive using the method, and recording medium storing the method. The self servo writing method includes measuring the width of a target track based on the reference servo information, calculating the deviation between the measured width and a target width, and writing the final servo information while following the target track based on the center position of the target track calculated using the reference servo information and the calculated deviation of track width. According to the self servo writing method, the final servo information is written on tracks having a uniform width, even if the reference servo information is written on tracks having a non-uniform width.

Abstract: Magnetic reference patterns may be generated on a disk or other magnetic media without the need for seed wedges. This involves writing a first magnetic reference pattern to the disk with a servo writer. The disk may then be transferred to a hard disk drive. Control circuitry within the hard disk drive may recognize the first magnetic reference pattern and then position a RW head within the hard disk drive based on the first magnetic reference pattern. As the RW drive is accurately positioned based on the first magnetic reference pattern a second magnetic reference pattern may be written to the disk using the RW head. The RW head location is determined based on the velocity and phase between the read-write head and spiral sync marks contained within the first magnetic reference pattern.

Abstract: A system includes a self-servo-write (SSW) module and a control module. The SSW module generates servo signals and a control signal. The control module generates a first current to bias an actuator arm against a spring when the control signal is received and discontinues the first current to release the spring and accelerate the actuator arm when the SSW module generates the servo signals.

Abstract: A disk drive is disclosed comprising a disk, and a head actuated radially over the disk. A first linear acceleration signal is generated representing a first acceleration disturbance, a second linear acceleration signal is generated representing a second acceleration disturbance, and a third linear acceleration signal is generated representing a thermal popping disturbance. The first linear acceleration signal is combined with the third linear acceleration signal to generate a fourth linear acceleration signal representing a combined physical shock disturbance and thermal popping disturbance.

Abstract: A magnetic recording system includes a patterned medium comprised of land areas and trough areas, a write element which writes the data to the patterned medium, and a read element which reads the data from the patterned medium and servo information from the troughs. The land areas store data and the trough areas inhibit storage of data. The read element is wider than the write element.

Abstract: A position error calculator for an embedded disk controller including a burst selector that selects a burst pair based on a burst pair format. The burst pair format includes at least a first burst pair format that includes x bursts and a second burst pair format that includes y bursts and x is not equal to y. A linear position calculator calculates head linear position based on the burst pair format.

Abstract: A disk drive is disclosed which receives a plurality of access commands from a host, where each access command identifies a target track. The access commands are stored in a command queue, and for each command in the command queue, a seek length is computed corresponding to a number of tracks between a current track the head is over and the target track of the access command. A seek time is computed in response to the seek length using a seek profile comprising a first plurality of seek length segments and a variance group comprising a second plurality of seek length segments. Each seek length segment corresponds to a range of seek lengths, and the first plurality of seek length segments is different than the second plurality of seek length segments.

Abstract: The recording medium cartridge accommodates a recording medium such as a magnetic tape, a optical and/or magnetic disk, or the like in a cartridge body having an upper half and a lower half. A non-contact type memory device storing information, for example, given when producing the cartridge is provided in a reel of at least one of upper and lower flanges of a tape reel or on a surface facing to the tape winding surface of the body in the cartridge accommodating the tape reel wound with the tape, or in a recessed portion formed in at least one of a bottom surface of the lower half and an upper surface of a slider or in the slider in the cartridge having the slider, or in a transparent window of the body. A part of at least one of the upper and lower halves that corresponds to the memory device may be notched. The memory device may be welded together when fitting other members.

Abstract: Mounts for securing magnetic disk drive head suspensions to actuator arms. The mounts include structures that snap onto the actuator arm to provide a secure friction fit engagement. The mounts can be efficiently removed to permit rework of the suspension and head components.

Abstract: The present invention provides unamount head/arm subassemblies and read-write head stack assembly for a disk drive, and a servowriter having the head stack assembly. Each head/arm subassembly is assembled and aligned individually so that multiple head/arm subassemblies can be installed on a mounting block to build the head stack assembly with all heads being properly aligned. In addition, each head/arm subassembly can be disassembled independently, facilitating easy rework on individual defect head.

Abstract: A micro-actuator for a head gimbal assembly includes a U-shaped frame and a metal support frame. The U-shaped frame includes a bottom support, a pair of side arms extending from the bottom support, and a PZT element mounted to each of the side arms. Each PZT element is excitable to cause selective movement of the side arms. The metal support frame includes a top support adapted to support a slider, a bottom support adapted to be connected to a suspension, and a pair of side arms that interconnect the bottom support and the top support. The metal support frame is mounted to the U-shaped frame such that the side arms of the metal support frame are mounted to respective side arms of the U-shaped frame and the bottom support of the metal support frame is mounted to the bottom support of the U-shaped frame.

Abstract: A magnetic sensor includes a magnetoresistance element having a peak of a thermal fluctuation strength of magnetization under a magnetic field having a certain frequency, a frequency filter connected to the magnetoresistance element and having its transmittance decreased or increased in substantially the frequency of the magnetic field to output a signal corresponding substantially to the peak of the thermal fluctuation strength of magnetization, and a detector connected to the frequency filter to detect the magnetic field based on the signal of the frequency filter.

Abstract: A magnetoresistive element has a first magnetic layer and a second magnetic layer separate from each other, the first magnetic layer and the second magnetic layer each having a magnetization whose direction is substantially pinned, and a non-magnetic conductive layer formed in contact with the first magnetic layer and the second magnetic layer and electrically connecting the first and second magnetic layers, the non-magnetic conductive layer forming a path of spin-polarized electrons from one of the magnetic layer to the other magnetic layer, the non-magnetic conductive layer comprising a portion located between the first magnetic layer and the second magnetic layer, the portion being a sensing area.

Abstract: A pair of SCR devices connected in antiparallel between first and second nodes. Each SCR device comprises an NPN and a PNP bipolar transistor. Reverse-biased Zener diodes are used for triggering the NPN bipolar transistor in each SCR device when it breaks down in an ESD event. Advantageously, additional Zener diodes are provided for pre-charging the PNP transistor of each SCR device at the same time, thereby reducing the delay time for turning on the PNP bipolar transistor. In addition, the breakdown current of the Zener diodes is preferably maximized by reducing the P-well and N-well resistance of the SCRs. This is achieved by connecting external resistances between the base of each bipolar transistor and the node to which the emitter of the transistor is connected.

Abstract: An output circuit for a circuit includes an input node coupled to the circuit, an output node, a reference potential terminal, a supply potential terminal, a semiconductor switch connected between the input node and the output node, and a control circuit. The control circuit is designed to open the semiconductor switch when the potential at the output node is higher than a first limit potential depending on a potential applied to the supply potential terminal, or when the potential is lower than a second limit potential depending on a potential applied to the reference potential terminal, and to close the semiconductor switch when the potential is between the first and the second limit potential. Such an output circuit has the advantage that the circuit is protected both against an overvoltage applied to the output node and a polarity inversion, wherein only monolithically integratable semiconductor devices are used.

Abstract: The vacuum switching chamber has two contact pieces and is provided with at least one heat pipe for dissipating heat. The heat pipe contains a working medium for dissipating the heat by evaporating the working medium in a section, referred to as the evaporator, of the heat pipe and condensing the working medium in a section, referred to as the condenser, of the heat pipe. Advantageously, the evaporator is in close thermal contact with at least one contact piece, and, in particular, at least part of the evaporator is integrated in the first contact piece or the second contact piece. Advantageously, the condenser has a cooling rib arrangement.

Abstract: A solenoid driving apparatus that drives a solenoid by intermittently supplying an exciting current comprises a first current switching element turned ON and OFF so as to switchably allow and block passage of the exciting current supplied to the solenoid L, a loop current circuit 3 being connected to the first current switching element and passing a loop current caused by stored energy in the solenoid when the supply of the exciting current to the solenoid is stopped by the first current switching element, and a second current switching element being disposed between the solenoid and a junction of the first current switching element and the loop current circuit, and being turned ON and OFF so as to switchably allow and block passage of the exciting current and the loop current.

Abstract: The present invention provides a device that can be readily installed in any type of footwear, and that when installed enables a semi-continuous grounding path through the shoe of the wearer to an earthly source to dissipate static electricity. The present invention consists of a collection pad, an electrical path to a resistor, and continues that path to an earthly ground that prevents, or greatly reduces, electro static discharge (ESD) in personnel and their clothing when they are wearing shoes with insulative-soles. Alternatively a single resistor wire is employed to conduct static electricity to ground. This device is intended to increase the comfort level of the wearer of such shoes by eliminating, or greatly reducing the harmful and annoying effects of ESD without having any affect on the cosmetic appearance or the functionality of the shoe.

Abstract: A capacitor having a large current carrying capacity includes a hollow core formed by a non-conducting tubular section, and a capacitor winding wrapped around the tubular section. A thermal cutoff device is disposed within the hollow core. The thermal cutoff device is configured to sense a predetermined temperature level within the hollow core and disable the current carrying capacity of the capacitor. The thermal cutoff device is disposed at a geometric center of the capacitor winding, which is also the hot spot of the capacitor winding. The thermal cutoff device includes first and second conductors electrically connected to each other with a predetermined solder alloy. The first conductor includes a cross-sectional portion that is attached to the second conductor. The cross-sectional portion is subjected to a springing force in a lateral direction away from the second conductor.

Abstract: A capacitor having a large current carrying capacity includes a hollow core formed by a non-conducting tubular section, and a capacitor winding wrapped around the tubular section. A sensor is disposed within the hollow core. The sensor is configured to sense a predetermined temperature level within the hollow core and provide an alert external to the capacitor winding.

Abstract: A multi-segment parallel wire capacitor includes substantially identical multiple capacitor segments fabricated on a semiconductor substrate. Each segment comprises at least first and second interleaved metal finger formed in a first metal layer above the substrate and third and fourth interleaved metal fingers formed in a second metal layer. The first and fourth sets are connected together to form one plate of the capacitor and the second and third sets are connected to form a second plate. The multiple capacitor segments are arranged in a matrix having M rows and N columns. The multiple capacitor segments are inter-connected in such a manner that the capacitor segments in each column of the matrix are connected in parallel. First and second metal lines selectively connect the plates of the different capacitor segments in the first and last rows and serve as the two opposite terminals of the multi-segment parallel wire capacitor.

Abstract: A device includes a base plate, a first cell, a second cell, and a housing in which the-first cell and the second cell are arranged. The first cell and the second cell each include at least one capacitor. The device also includes a first metal plate configured connected to a capacitor in the first cell and second metal plate connected to a capacitor in the second cell. The first and second metal plates each having at least one hole configured to receive the conductive fastening element. The device also includes an electrically conductive fastening element connected through the hole in the first metal plate and the hole in the second metal plate such that the first metal plate and the second metal plate are-electrically connected to one another and mechanically attached to one another and to the base plate.

Abstract: Electrical storage devices having excellent low-temperature properties can be obtained by using a quaternary salt (or ionic liquid) of general formula (1) below as an electrolyte salt for electrical storage devices or a liquid electrolyte for electrical storage devices. In formula (1), R1 to R4 are each independently an alkyl group of 1 to 5 carbons or an alkoxyalkyl group of the formula R?—O—(CH2)n—, with the proviso that at least one group from among R1 to R4 is the above alkoxyalkyl group. X is a nitrogen or phosphorus atom, and Y is a monovalent anion.

Abstract: A solid electrolytic capacitor is disclosed. The capacitor comprises an organophosphorus material positioned between the dielectric layer and the polymeric electrolyte layer. The organophosphorus compound improves the interlayer adhesion between the dielectric and electrolyte layers.

Abstract: In a solid electrolytic capacitor provided with an anode, a cathode, and a dielectric layer formed by anodization of the anode, the anode includes a first metal layer and a second metal layer. The first metal layer is made of any of metal selected from niobium, aluminum and tantalum, or an alloy containing any of metal selected from niobium, aluminum and tantalum as a main component. The second metal layer contains any of metal selected from titanium, zirconium and hafnium. Here, a part of a surface of the first metal layer is covered with the second metal layer.

Abstract: A power interface operable to direct power from one of a first source and a second source to a load. The power interface includes a support plate, and a switch extending through the support plate. The switch is electrically connected to the first source and to the load and is movable between a first switch position in which power from the first source is directed to the load, and a second switch position in which power from the first source is inhibited from reaching the load. An electrical connector is electrically connectable to the load and is connectable to the second source to facilitate the delivery of power from the second source to the load. A movable cover is movable between a first cover position in which the cover inhibits connection between the electrical connector and the second source and a second cover position.

Abstract: A method and system of a portable computer with a detachable display. Some illustrative embodiments may be a portable computer comprising a base unit comprising a main battery, and a display unit coupled to the base unit. The display unit is selectively detachable from the base unit, and wherein the base unit wirelessly couples to the display device.

Abstract: A mounting apparatus for mounting a plurality of expansion cards with cover plates includes a rear panel, a fixing member and a locking member. Each of the cover plates has a bent portion. The rear panel defines an opening. A supporting flange for supporting the bent portions extends outwardly from the rear panel at a bottom side of the opening. A through hole is defined in the rear panel. The fixing member is slidably mounted on an inner surface of the rear panel. A locking hole corresponding to the through hole is defined in the fixing member. The locking member includes a pressing part for pressing the bent portions, and a securing part. A hook corresponding to the through hole is formed on the securing part. A distal end of the pressing part is located on a distal end of the supporting flange of the rear panel.

Abstract: A computer has a cover supporting a display and a base supporting a processor and hingedly coupled to the cover. A locking assembly includes a locking mechanism that is advanceable into a lock hole of the computer and that can be tethered to a stationary object to prevent theft of the computer. As the locking assembly is advanced into the hole, it moves a coupling that blocks the computer's cover latch mechanism from releasing the cover from a closed position against the base of the computer, thereby also locking the computer in the closed configuration.

Abstract: A shock absorbing device for protecting a hard disk drive housing found primarily in portable electronic devices. The shock absorbers include protuberances that emanate from the body of the shock absorber and that extend through apertures provided in the enclosure. Thus, the physical shock is taken up by the body of the shock absorber as well as the protuberances, which increase the compression height of the shock absorber and increase the shock damping characteristics of the shock absorber. This permits decreasing the size of the enclosure, which is often desirable to consumers.

Abstract: The invention relates to an apparatus for fastening a data storage device, which is used to fasten a data storage device or module with a plurality of fixing holes. The apparatus for fastening a data storage device of the invention includes a housing, a driving plate, at least one lateral fastening plate, and an elastic member. As the driving plate moves, the lateral fastening plate is pushed to move laterally, whereby the locating pins move into or out of the locating holes on the sidewalls of housing to remove or fasten the data storage device. The data storage device can be fastened to a housing of a computer without screws, and a user can operate more conveniently.

Abstract: A mobile information handling system (IHS) docking apparatus includes a base having a display device. An IHS docking connector is located on the base. A mobile IHS may be secured to the base and connected to the IHS docking connector in order to utilize the mobile IHS as a conventional desktop IHS while reducing the space and cables required by conventional mobile IHS docking stations.

Abstract: A storage system assembly includes a storage processor (SP) module and an input/output (I/O) expansion module disposed between an and opening of an enclosure and a midplane circuit board. The SP module includes (i) a storage processor, (ii) first I/O interface modules at the end opening, and (iii) circuit traces of high-speed serial data links, the circuit traces including first circuit traces interconnecting the storage processor with the first I/O interface modules, and second circuit traces interconnecting the storage processor with the circuit traces of the midplane.

Abstract: An information processing device includes a housing part; a heating part arranged in the housing part; a cooling unit configured to cool the heating part; an airflow supplying member configured to supply an airflow to the cooling unit; and an airflow limitation member configured to limit the airflow supplied by the airflow supplying member. A part of the cooling unit, the airflow limitation member, and the airflow supplying member are arranged in series. An air intake part is provided in one surface of the housing part so as to intake air into the airflow limitation member. An air discharge part is provided in another surface of the housing part so as to discharge air cooling the part of the cooling unit. An air discharge unit is provided at an air discharge opening provided at one side surface of the airflow limitation member.