Abstract: The invention provides a zoom lens, characterized by comprising, a zoom lens, which comprises, in order from an object side thereof: a first lens group of negative refracting power, a second lens group of positive refracting power, a third lens group of negative refracting power, and a fourth lens group of positive refracting power, wherein: upon zooming from a wide-angle end to a telephoto end of the zoom lens, a separation between the respective lens groups changes, upon focusing from a focusing-on-infinity state to a close-range focusing state, the third lens group moves in an optical axis direction, and the conditions (1) and (2) are satisfied at the wide-angle end.

Abstract: An image lens, in order from an object side to an image side thereof, includes a first lens including a first surface and a second surface, a second lens including a third surface and a fourth surface, a third lens including a fifth surface and a sixth surface, a fourth lens including a seventh surface and a eighth surface, and an image plane. The image lens satisfies the following formulas: D/TTL>1.11; D/L>1.13; Z/Y>0.076; wherein D is the maximum image diameter of the image plane; TTL is a total length of the image lens; L is a distance from an outermost edge of the eighth surface to an optical axis of the image lens; Z is a distance from a central point of the sixth surface to an outermost edge of the sixth surface; and Y is a distance from the outermost edge of the sixth surface to the optical axis.

Abstract: Panoramic optical systems are disclosed comprising an ellipsoidal mirror and a lens system that reduces astigmatism. The lens systems are capable of operating at fast speeds. Simple and highly manufacturable lens systems are provided for capturing and/or projecting high quality 360-degree panoramic scenes.

Abstract: The present invention relates to optical unit comprising, seen in the direction from the object side to the imaging surface, a first substrate, a first lens, a second lens and a second substrate, characterised in that the distance [(vertex first lens) and (vertex second lens)] is 250-650 pm. Such an optical unit is used, inter alia, in image processing units, such as cameras. It is an object of the present invention to provide an optical unit in which the desired dimensional precision of the lens system can be accomplished without this leading to an undesirable increase of the optical unit's dimensions.

Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises four lens elements positioned in an order from the object side to the image side. Through controlling the convex or concave shape of the surfaces of the lens elements, the thickness of the at least one lens element, an air gap between two lens elements, and a sum of all air gaps between all four lens elements along the optical axis satisfying the relations: (T3/G34)>4 and (Gaa/T3)>1, wherein T3 is the thickness of the third lens element, G34 is the air gap between the third lens element and the fourth lens element, and Gaa is the sum of all air gaps between all four lens elements, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.

Abstract: An adjustment jig is inserted into an opening and an opening, and a screw provided on an inner lens frame holding a correcting lens is rotated. With the rotation of the screw, a front end of the inner lens frame moves in a direction toward an optical axis or radially outside the correcting lens. With this, the inner lens frame is moved in a direction toward the optical axis or radially outside the correcting lens, and the tilt of the correcting lens is decreased.

Abstract: A lens device according to an embodiment of the presently disclosed subject matter includes a first frame body where a first screw is formed, a second frame body where a second screw that can be screwed to the first screw is formed, the second frame body having a predetermined area of an outer perimeter where asperities are formed, an extender lens including a front optical system supported by the first frame body and a rear optical system supported by the second frame body, and a cylinder accommodating the first and second frame bodies and having formed thereon an opening for engaging a stick-shaped member inserted from the opening with the asperities from a diagonal direction when the first frame body is inserted in an optical axis.

Abstract: To prevent a shaft pad member from dropping even when a lens apparatus is in an individual state without using a special member. Guide shafts (25, 26) are secured to a lens housing (20). Lens holders (16, 18) are supported on those movably. Rear ends (44, 45) of the guide shafts (25, 26) are inserted in first support holes (34, 35). Front ends (41, 42) are press-fitted in second support holes (31, 32). A shaft pad member (50) is fitted in the first support holes (34, 35) to position the rear ends (44, 45) in the first support holes (34, 35). A sensor holder (73) where an imaging device (70) is fixed is overlapped on the shaft pad member (50). The shaft pad member (50) is prevented from dropping out of the first support holes (34, 35) by the sensor holder (73).

Abstract: The subject matter disclosed herein relates to an imaging device including an epoxy reservoir and a number of features to facilitate alignment of components during assembly of the imaging device.

Abstract: A lens barrel includes a flexible printed circuit board, a moving unit, and a support frame. The moving unit is configured to support the flexible printed circuit board. The support frame is configured to allow the moving unit to move in an optical axis direction. The support frame is configured to house the moving unit. The support frame includes a guide groove for guiding the flexible printed circuit board. The moving unit includes a convex portion provided to its outer peripheral portion. At least part of the convex portion is disposed in the guide groove.

Abstract: A vehicular camera includes a lens disposed at a lens holder and an imager disposed at a printed circuit board. The lens holder is one of (i) attached at the printed circuit board by a cured adhesive and (ii) attached at a holding element by a cured adhesive with the printed circuit board held by the holding element. The adhesive is initially curable in an initial radiation curing process and initially-cured adhesive is further curable to a further cured strength in a secondary thermal curing process. The adhesive is initially cured via the initial radiation curing process after the lens is brought into focus with the imager and is optically center-aligned therewith. When further cured via the secondary thermal curing process, the further-cured adhesive maintains focus and optical center-alignment of the lens with the imager for use of the camera in a vehicle.

Abstract: There is provided a facet mirror device comprising a facet element and a support unit, the support unit supporting the facet element. The support unit comprises a first support element and a second support element, the second support element being connected to the facet element to support the facet element. The first support element is connected to the second support element to support the second support element, the first support element being connected to the second support element via at least one flexure unit, the flexure unit comprising at least one flexure.

Abstract: An apparatus and method for attenuating light transmitted through a surface. The apparatus may include a light attenuator comprised of a substrate and an electrostatic layer. The electrostatic layer may be configured to electrostatically couple with the surface. The electrostatic layer may also electrostatically couple with the substrate. The substrate, the electrostatic layer or layers, or a light attenuating substance combined with at least one of the substrate and the electrostatic layer may attenuate light transmitted through the surface. The method may include positioning the light attenuator on the surface between the light source and the light receiver.

Abstract: A method of storing data in a storage medium includes determining a compensation unit for a portion of the storage medium, reading a first set of bit values from the portion of the storage medium, determining a compensation value based at least in part on an erroneous bit value of the first set of bit values and the compensation unit, and storing the compensation value in association with the portion of the storage medium.

Abstract: According to one embodiment, a disk storage apparatus includes a first storage device, a second storage device, and a controller. The first storage device stores data for use in determining influence imposed on tracks peripheral to a designated track in which data should be written on a disk. The second storage device has a nonvolatile cache area for temporarily storing data. The controller performs a cache process of storing the data in the nonvolatile cache area if the influence is determined, from the data, to exceed a reference value, in preparation for writing the data in the designated track.

Abstract: A reference circuit comprises a first proportional to temperature component providing a first quantity exhibiting a first type of variation as a function of temperature, a first complementary to temperature component providing a second quantity exhibiting a second type of variation as a function of temperature that is complementary to the first type of variation, and curvature correction circuitry. An output of the reference circuit provides a reference signal generated based on a combination of the first and second quantities. The curvature correction circuitry is coupled to the reference circuit output and comprises at least one additional complementary to temperature component. The curvature correction circuitry adjusts the reference signal in a feedback arrangement to compensate for a temperature response bowing effect attributable to combining the first and second quantities. The reference circuit may be implemented in a disk-based storage device for use in fly height control or other control functions.

Abstract: In one embodiment, a system includes a processor, logic in the processor and/or memory configured to determine a physical position on a magnetic medium that corresponds to an end of encrypted data written over residual unencrypted data, and logic configured to store an indicator of the physical position on at least one of the magnetic medium and a memory coupled thereto. In another embodiment, a method includes determining a physical position on a magnetic medium that corresponds to an end of encrypted data written over residual unencrypted data, storing an indicator of the physical position on at least one of the magnetic medium and a memory coupled thereto.

Abstract: Various approaches, methods, systems, circuits and devices for channel bit density estimation.

Abstract: Provided are a storage device, method, and program for controlling a tape speed to manage a tape drive buffer. A tape speed is increased from a current tape speed to a target tape speed on a predetermined speed-change timing to control the reading or writing of data between the buffer and the tape medium.

Abstract: In one embodiment, a data storage system includes a head; a drive mechanism for passing a medium over the head; a controller electrically coupled to the head; logic encoded in or available to the controller for: periodically determining a stopwrite threshold based on a standard deviation or a variance at a current position error signal sample, wherein a smoothing factor applied to a subsequent calculation of the standard deviation or variance is altered based at least in part on a current magnitude of the standard deviation or the variance; determining whether the current position error signal sample exceeds the stopwrite threshold; disabling writing when the current position error signal sample exceeds the stopwrite threshold; and enabling writing when the current position error signal sample does not exceed the stopwrite threshold. Other systems, methods, and computer program products are described according to more embodiments.

Abstract: A servo track has identical servo pattern frames including two pairs of parallel magnetic transitions, the transitions of each pair spaced apart an equal distance, the transitions of the first pair at an azimuth angle to the longitudinal axis of the tape, the transitions of the second pair at an opposite azimuth angle. A servo channel receives signals at first times corresponding to when a servo read head detects the first and second transitions of the first pair of parallel transitions of a servo pattern frame, and second times corresponding to when the servo read head detects the first and second transitions of the second pair of parallel transitions. The servo channel determines a relative lateral movement and velocity between the tape and the tape head based on the azimuth angle and the ratio of the difference of the first and the difference of the second times.

Abstract: According to one embodiment, a magnetic head includes a magnetoresistive element between a first magnetic shield layer and a second magnetic shield layer, and a hard bias layer between the first magnetic shield layer and the second magnetic shield layer on a side surface of the magnetoresistive element in a first direction intersecting with a second direction which links the first and second magnetic shield layers. The hard bias layer includes Fe or an alloy containing Fe and Co. An aspect ratio (h/w) of the hard bias layer is not smaller than 2, where h is a height of the hard bias layer in the first direction and w is a thickness of the hard bias layer in the second direction.

Abstract: Disclosed herein is a base for a hard disk drive including: a base plate formed with a motor seating part; and at least one through hole formed along an outer circumference of a seating part of the base plate and formed to axially receive a coil winding part of a stator assembly of the motor, wherein the through hole is configured of a first through groove corresponding to the coil winding part and a second through groove extending from the first through groove and formed so that a radial forming width of the second through groove from a center of the seating part is narrower than that of the first through groove. According to the preferred embodiment of the present invention, it is possible to improve and maintain the rigidity of the base while avoiding the coil winding part by structurally changing the through hole of the base.

Abstract: A slider and a pair of microactuator elements are disposed on a gimbal portion of a flexure. The gimbal portion comprises a first tongue portion, a second tongue portion, and a hinge portion. A trailing-side portion of the slider is secured to the second tongue portion. A leading-side portion of the slider is movable relative to the first tongue portion. A conductive circuit portion comprises a conductor connected to an element of the slider and a conductor connected to electrodes of microactuator elements. The conductive circuit portion comprises a first wiring pattern portion disposed inside microactuator elements and a second wiring pattern portion extending rearwardly relative to the gimbal portion.

Abstract: A gimbal portion of a flexure is provided with first supporting portions to which first end portions of microactuator elements are secured and second supporting portions to which second end portions are secured. A first tongue portion is formed between the pair of first supporting portions. A leading-side portion of a slider is movably disposed on the first tongue portion. A second tongue portion is formed between the pair of second supporting portions. A trailing-side portion of the slider is secured to the second tongue portion. A narrow hinge portion is formed between the first and second tongue portions. The tongue portions are pivotably connected by the hinge portion. The distal end of a dimple contacts the hinge portion at a point of contact.

Abstract: In certain embodiments, a slider includes an air bearing surface having a cavity. The cavity includes transition features at an upstream side of the cavity to mitigate air flow expansion along the cavity. Turbulence-inducing features are positioned on the transition features.

Abstract: A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield.

Abstract: A slider and microactuator elements are disposed on a gimbal portion of a flexure. A first end portion of each of the elements is secured to a first supporting portion. A second end portion is secured to a second supporting portion. A ground-side conductor is provided on the second supporting portion. A limiter member consists mainly of a resin shared with an insulating layer of a conductive circuit portion. The limiter member comprises a grounding junction, a first bridge portion, and a second bridge portion. The grounding junction is secured to the second supporting portion. The first bridge portion extends in a first direction from the grounding junction. The second bridge portion extends in a second direction from the grounding junction.

Abstract: A microactuator element is disposed on a gimbal portion of a flexure. A first end of the element is secured to a first supporting portion by a first insulating adhesive. A second end is secured to a second supporting portion by a second insulating adhesive. A first conductor is disposed on the first supporting portion. A second conductor on the ground side is disposed on the second supporting portion. A first electrode is disposed on a first end of the element. A first electrically conductive paste is provided between the first electrode and the first conductor. A second electrode is disposed on a second end of the element. A second electrically conductive paste is provided between the second electrode and the second conductor.

Abstract: A suppression circuit may be added to a motor driver circuit, which suppresses offset voltage and ringing in the output signal. The suppression circuit may include an RC circuit filter connected to a pin of a microchip providing a gating reference signal and a junction between high and low side MOSFETS connected to the microchip.

Abstract: A protection element includes a first wiring line configured to be supplied with a signal voltage when electric current is on; a second wiring line configured to be supplied with a criterion voltage; a detection circuit connected between the first wiring line and the second wiring line, and configured to detect the signal voltage inputted onto the first wiring line; an inverter circuit including a plurality of inverters connected between the first wiring line and the second wiring line, and configured to be supplied with a reference voltage having a same level as that of the signal voltage between an odd-numbered inverter and an even-numbered inverter when electric current is on; and a protection transistor connected between the first wiring line and the second wiring line, and having a gate configured to receive output of the inverter circuit.

Abstract: An implantable medical device can include an integrated circuit comprising an electrostatic discharge (ESD) protection circuit. The ESD protection circuit can include an active circuit, a first passive circuit, and a second passive circuit. For example, at least one of the first or second passive circuits can include an array of capacitors in a series configuration, a parallel configuration, or a combination of series and parallel configurations. The first and second passive circuits can be configured to establish a specified time constant, and, in response to an applied ESD, the first and second passive circuits can provide a control signal to active circuit to switch the active circuit from a substantially non-conductive mode to a substantially conductive mode.

Abstract: A surge protection circuit for a line driver of a communication system includes a positive output pad; a negative output pad; a transistor, comprising a first terminal, a second terminal and a third terminal, the first terminal coupled to the positive output pad, the second terminal coupled to the negative output pad; and a trigger circuit. The trigger circuit includes an inverter, comprising an input terminal and an output terminal, the output terminal coupled to the third terminal of the transistor; and a first RC delay circuit. The first RC delay circuit includes a resistor having a terminal coupled to an input terminal of the inverter, and another terminal coupled to a power supply; and a capacitor having a terminal coupled to the input terminal of the inverter and another terminal coupled to a ground. The transistor is within an integrated circuit.

Abstract: A current-limitation system for limiting a current through an DC connection in case of a fault occurring in a DC grid of which the DC connection forms a part is provided, as well as a method of operating a current-limitation system for limiting a current through an DC connection in case of a fault occurring in a DC grid of which the DC connection forms a part.

Abstract: A power supply system has a power storage device and an ECU, and supplies driving electric power to a load device. The power storage device includes an interrupting device configured to interrupt a conduction path of the power storage device. The load device includes a voltage sensor for detecting a voltage applied to the load device, and supply of electric power from the load device to the power storage device is stopped in response to a failure of the voltage sensor. Where the voltage sensor has failed, the ECU determines presence or absence of activation of the interrupting device, based on a variation length of an actual current that is input to or output from the power storage device and a variation length of a command current set in accordance with requested electric power requested based on a user's operation.

Abstract: The present invention is to provide a packaged chip having a protective component integrated with a signal isolation transformer, wherein the signal isolation transformer comprises a primary side and a secondary side, and the primary side includes an input port electrically connected to the signal input slot, and a primary side central tapped port, and the secondary side includes an output port electrically connected to the internal signal processing unit and a secondary side central tapped port. Using such structure, the chip has the functions of surge protection as well as noise treatment, and the problem that the conventional protective circuit occupying too much space is solved.

Abstract: An electric equipment protection device includes a first conducting line and a second conducting line, connectable to a power source to receive a supply voltage of a rated value; at least one varistor, connected between the first conducting line and the second conducting line, and having a breakdown voltage; and a control stage cooperating with the varistor. The control stage includes at least one gas discharge device, an activation network of the gas discharge device and a diagnostic device.

Abstract: A multi-phase switching converter includes a plurality of switching circuits and a controller. The output terminals of the plurality of switching circuits are coupled together to provide an output voltage to a load. The controller is configured to generate a plurality of control signals to control the plurality of switching circuits. When an over current condition of a current switching circuit of the plurality of switching circuits is detected, the controller skips the current switching circuit and successively turns on the remaining plurality of switching circuits that have not yet been turned on and where an over current condition has not been detected.

Abstract: A method and an arrangement for reducing an in-rush current of a multi-module system are provided. The system comprises a plurality of modules designed to perform predefined functions, and a power supply unit designed to provide power to the plurality of modules. Each of the plurality of modules comprises a power control system which performs a respective time delay on the power-on of the power received from the power supply unit. With the system and the method, the total in-rush current of the multi-module system is greatly reduced.

Abstract: A residual current circuit breaker having a core-balance current transformer for detecting a residual current, wherein a secondary winding is arranged on a core of the core-balance element transformer, wherein the residual current circuit breaker has an AC measurement arrangement and a DC measurement arrangement, wherein the AC and DC measurement arrangements are designed to operate simultaneously and in parallel.

Abstract: To provide an antistatic device having a low capacitance, good discharge characteristics, and small variations in the discharge characteristics. In a so-called gap-type antistatic device in which a space between a pair of opposing electrodes is filled with an electrostatic protection material, a discharge inducing portion has protrusions protruding from interfaces between the opposing electrodes and the insulation substrates toward the insulation substrates and has a shape protruding on both sides of the insulation substrates. The relationship among the gap distance between the electrodes, the thicknesses of the opposing electrodes, and the protrusions of the discharge inducing portion is controlled under specific conditions.

Abstract: The invention could be a stun glove and a method of operating the same, the stun gun could comprise a glove portion made from a laminate of an inside material and an outside material, the laminate forms a cavity adapted for covering at least a portion of a hand within at least a thumb sleeve; an electronic circuitry when activated by a trigger mechanism generates a pulsed electrical charge to a plurality of electrodes, the electronic circuitry being embedded within the laminate in a manner to expose each said electrode to a glove portion exterior; and the trigger mechanism located within the thumb sleeve so as to be proximate to a leading edge of a tip of the thumb sleeve.

Abstract: There is provided a multilayered ceramic electronic component including: a ceramic body including a dielectric layer and having first and second main surfaces, third and fourth end surfaces, and fifth and sixth side surfaces; internal electrodes disposed to face each other in the ceramic body and having the dielectric layer interposed therebetween; and external electrodes electrically connected to the internal electrodes, wherein the external electrodes include first external electrodes formed from the third or fourth end surface to the first and second main surfaces, and second external electrodes formed from the third or fourth end surfaces to the first and second main surfaces on the first external electrodes, having a length shorter than a length to which the first external electrodes are formed on the first and second main surfaces, and containing an epoxy resin.

Abstract: There is provided a multilayered ceramic electronic component including: a ceramic body in which a plurality of dielectric layers are stacked; a plurality of first and second internal electrodes formed on at least one of the dielectric layers and alternately exposed through both ends of the ceramic body in a stacking direction of the ceramic body; an a step compensation cover including a ceramic material having a viscosity higher than that of a ceramic material included in the ceramic body and formed on at least one of an upper surface and a lower surface of the ceramic body.

Abstract: There is provided a multilayered ceramic electronic component including: a ceramic body in which a plurality of dielectric layers are multilayered; a plurality of first and second internal electrode layers formed on at least one surfaces of the dielectric layers and alternately exposed through both ends of the ceramic body in a length direction thereof; first and second adhesive layers formed on both ends of the ceramic body, electrically connected the exposed first and second internal electrodes and formed of a conductive paste; and first and second external electrode layers formed on surfaces of the first and second adhesive layers and formed of a glass-free conductive paste.

Abstract: There are provided a laminated ceramic electronic component and a method of fabricating the same. The laminated ceramic electronic component include a ceramic body including a dielectric layer; and first and second internal electrodes disposed to face each other, having the dielectric layer interposed therebetween within the ceramic body, wherein the ceramic body includes an active layer that is a capacitance forming part and a cover layer that is a non-capacitance forming part formed on at least one of a top surface and a bottom surface of the active layer, and when a thickness of the ceramic body is t and a thickness of the cover layer is T, T?t×0.05 is satisfied and when an average particle diameter of a dielectric grain in the active layer is Da and an average particle diameter of a dielectric grain in the cover layer is Dc, 0.7?Dc/Da?1.5 is satisfied.

Abstract: There is provided a ceramic electronic component, including: a ceramic body including a plurality of internal electrodes; a first external electrode layer electrically connected to the internal electrodes and formed on external surfaces of the ceramic body; a second external electrode layer including nickel (Ni), formed on the first external electrode layer; a metal coating layer including tin (Sn), formed on external surfaces of the first external electrode layer and the second external electrode layer; and a diffusion layer formed between the first and second external electrode layers and the metal coating layer.

Abstract: The invention relates to a method for manufacturing a high performance multi layer ceramic capacitor, comprising the steps of: a) providing a substrate having a first edge and a second edge arranged opposite to the first edge, b) depositing a bottom electrode layer onto the substrate using a thick-film and/or thin-film deposition method such that the electrode layer extends all the way from the first edge towards the second edge of the substrate such that a trench free of the bottom electrode layer is provided adjacent in between the deposited bottom electrode layer and the second edge of the substrate, d) depositing a high-k dielectric ceramic layer onto the electrode layer using a thick-film and/or thin-film deposition method such that the high-k dielectric ceramic layer extends all the way to the first edge and to the second edge of the substrate, f) depositing a low-k dielectric layer comprising silicon nitride, silicon dioxide and/or aluminum oxide onto the high-k dielectric ceramic layer using a thin-fi

Abstract: An electrical multilayer component includes a stack composed of functional layers and also a first and a second external contact. The external contacts are arranged on side surfaces of the stack. Internal electrodes of a first type are directly electrically conductively connected to the first external contact and internal electrodes of a second type directly electrically conductively connected to the second external contact. An internal electrode of the first type and an internal electrode of the second type partly overlap. An internal electrode of the first type and an internal electrode of the second type are arranged in a manner spaced apart from one another in an identical plane.

Abstract: A laminate body includes a plurality of ceramic layers and capacitor conductors embedded in the laminate body so as to be opposed to each other via one of the ceramic layers. The capacitor conductors are made of an Al-based material, and the capacitor conductors include narrow portions, respectively, which function as fuse elements. The narrow portions have an average width smaller than an average width of portions of the capacitor conductors other than the narrow portions. As a result, the electronic component has an improved capability to protect its function as a capacitor when a short circuit occurs between capacitor conductors.