Abstract: An optics system is provided that is made up of a single diffractive optical element that performs beam collimating, beam splitting, and light blocking functions. The diffractive optical element is made up of a substrate having a first surface comprising an entrance facet and a second surface comprising an exit facet. The first surface comprising the entrance facet performs at least the functions of collimating the beam of light produced by the light source and of tilting the collimated beam in a particular direction. The second surface comprising the exit facet performs at least the functions of splitting the tilted collimated beam into at least two collimated light beams and of blocking unintended light (i.e., one or more mode order groups that are not intended to be used for imaging purposes). By performing all of these functions on different surfaces of a single substrate, an extremely compact optics system having very high optical efficiency and a very high signal-to-noise ratio is realized.

Abstract: An optical element is disclosed. The optical element may include a container having a holding chamber, a polar or conductive first liquid filled in the holding chamber, a second liquid filled in the holding chamber and not mixing with the first liquid, first and second electrodes for applying an electric field to the first liquid, and voltage application means for applying voltage between the first electrode and the second electrode.

Abstract: A zoom lens includes a first lens unit having a negative refractive power and which is provided at a location closest to an object side, a lens unit LP having a positive refractive power, which is provided at a location closest to an image side, and which is stationary during zooming, and a lens unit LN having a negative refractive power, which is provided adjacent to the lens unit LP on the object side of the lens unit LP, and which is configured to move during zooming. In the zoom lens, optical parameters fp, fn, fw, ft, fni and ?dni are appropriately set.

Abstract: A lens system including: a first lens group having a positive refractive power; a second lens group having a positive refractive power; and a third lens group having a positive or negative refractive power, wherein the first lens group comprises four or less lenses, and the first through third lens groups are movable, independently, during focusing and have magnifications in a range from ?1 to 0.

Abstract: A zoom lens includes, in a sequence from an object side to an image side, a first lens group having a negative refractive power and comprising two lenses; a second lens group having a positive refractive power; a stop disposed on the image side of the second lens group; and a third lens group having a positive refractive power, wherein: during zooming from a wide angle position to a telephoto position, an interval between the first lens group and the second lens group decreases, and an interval between the second lens group and the third lens group increases.

Abstract: A lens barrel of the present invention includes: a fixing frame having a plurality of cam grooves that are formed an inner circumferential surface of the fixing frame and also having a protrusion provided between any adjacent two of the cam grooves among a plurality of the cam grooves; and a drive frame having cam followers that are provided to an outer circumferential surface of drive frame, are engaged with the cam grooves, and are movable along the cam grooves. With this configuration, when an external force is applied to the drive frame, an end portion of the drive frame comes into contact with the protrusion to prevent the cam followers from coming out of the cam grooves.

Abstract: A micro-lens module including a first lens, a second lens, and an aperture stop is provided. The first lens is disposed between an object side and an image side, wherein a first surface of the first lens facing the object side is an aspheric surface, and the curvature radius of the aspheric surface is R1. The second lens is disposed between the first lens and the image side, wherein a second surface of the second lens facing the image side is an aspheric surface, and the curvature radius of the aspheric surface is R2. The aperture stop is disposed between the first lens and the second lens, wherein the distance from the first surface to the aperture stop is d1, and the distance from the second surface to the aperture stop is d2. The micro-lens module satisfies 6>d2/d1>2.5 and ?2.5<R1/R2<1.5.

Abstract: A five-piece optical lens system is provided with, in order from the object side to the image side: a stop, a first lens element with a positive refractive power having a convex image-side surface, one of the object-side surface and an image-side surface being aspheric; a second lens element with a negative refractive power having a concave image-side surface, one of the object-side surface and an image-side surface being aspheric; a third lens element with a positive refractive power having a convex image-side surface, one of an object-side surface and the image-side surface being aspheric; a fourth lens element having a concave object-side surface, one of the object-side surface and an image-side surface being aspheric; a fifth lens element with a negative refractive power having a convex image-side surface, one of an object-side surface and the image-side surface being aspheric.

Abstract: The present invention provides an imaging lens assembly, comprising in order from an object side toward an image side, a first lens element with positive refractive power having a convex object-side surface, a second lens element with negative refractive power having a concave object-side surface and a convex image-side surface, a third lens element with positive refractive power having a concave object-side surface and a convex image-side surface, a fourth lens element with negative refractive power, a fifth lens element with positive refractive power, and an aperture stop positioned between an imaged object and the first lens element. The above lens arrangement shortens the total track length effectively, enabling a high performance imaging lens assembly with a wide field of view.

Abstract: An image forming lens consists of from an object side to an image side in the following order: a first group with a positive refractive power; an aperture stop; and a second group with a positive refractive power, wherein the second group includes, from the object side to the image side in the following order, a biconvex lens, a biconcave lens, a negative meniscus lens a convex surface of which faces the image side, a biconvex lens, and a positive meniscus lens a convex surface of which faces the image side.

Abstract: The invention relates to a monolithic optical mount, which is divided by a plurality of cutouts into a stationary outer mount ring, a laterally adjustable inner mount ring, and manipulator units that are arranged with uniform offset from each other and formed by the remaining material connections. The cutouts have a uniform constant width and can therefore advantageously be produced by milling. The manipulator units have a simple geometrical design in the form of T- or L-shaped webs.

Abstract: The present invention provides a miniaturized lens barrel and optical instrument.

Abstract: A lens device includes a fixed lens, a rotatable lens barrel, and a base. The fixed lens includes at least one cam groove which has an opening portion. The rotatable lens barrel is sleeved within the fixed lens. The rotatable lens barrel includes at least one cam follower. The cam follower enters the cam groove through the opening portion and moves along the cam groove. The base is assembled to the fixed lens. The base includes at least one protruding structure. The protruding structure extends to the cam groove through the opening portion.

Abstract: A magnetic recording method for a recording layer of a magnetic recording medium uses a thin film magnetic head with a sub-coil or a microwave radiator. In the method, a microwave spread spectrum (SS) signal is applied to the sub-coil or the microwave radiator, the microwave SS signal including a ferromagnetic resonant (FMR) frequency of the recording layer as a carrier wave within a band so as to generate an in-plane high-frequency magnetic field so that a magnetization reversal magnetic field Hsw of the recording layer is lowered. The magnetic recording is performed while the magnetization reversal magnetic field Hsw of the recording layer is lowered.

Abstract: In one embodiment, a magnetic data storage system includes a main pole power supply adapted for supplying an excitation current to a main pole coil, a microwave-assisted magnetic recording (MAMR) device including a spin-torque oscillator (STO) element, the STO element having a field generation layer (FGL) and a polarization layer, a timing-control circuit adapted for determining a duration of a main pole magnetic moment inversion process and signaling a start of the main pole magnetic moment inversion process, and a current-regulating circuit comprising an STO power supply adapted for supplying current to the STO element, wherein the STO power supply prevents degradation of a single rotating magnetic domain structure in the FGL into a closure magnetic domain structure in the FGL. Other systems and methods for preventing degradation of the single rotating magnetic domain structure in the FGL into a closure magnetic domain structure are described for more embodiments.

Abstract: A disk drive is disclosed comprising a disk surface comprising a plurality of tracks, each track comprising a plurality of servo sectors. The disk drive further comprises a head coupled to a distal end of an actuator arm, and a voice coil motor (VCM) and a microactuator operable to actuate the head over the disk surface. The head is first servoed in response to the servo sectors, and after first servoing the head, a manufacturing procedure is executed by controlling the VCM and the microactuator to servo the head while accessing the disk surface. After executing the manufacturing procedure, the head is second servoed in response to the servo sectors, and the microactuator is evaluated in response to the first and second servoing.

Abstract: A data storage device assembly comprises a data storage device, a shock mount configured to couple to the data storage device, and an enclosure comprising first and second portions. The first enclosure portion may comprise a first pocket defining a first nesting surface, and a first plurality of ribs configured to contact a first portion of the shock mount over an aggregate first surface area that is less than a surface area of the first nesting surface. The second enclosure portion may be configured to mate with the first enclosure portion to enclose the data storage device therebetween. The second enclosure portion may comprise a second pocket defining a second nesting surface and a second plurality of ribs configured to contact a second portion of the shock mount over an aggregate second surface area that is less than a surface area of the second nesting surface.

Abstract: A method and system for providing a magnetic recording head is described. The magnetic recording head has an air-bearing surface (ABS) configured to reside in proximity to a media during use. The head includes a first coil, a second coil, a main pole, and a third coil. The first coil has a first plurality of turns and is configured to carry a first write current in a first direction. The second coil has a second plurality of turns and is configured to carry a second write current in a second direction. The main pole is between the first coil and the second coil. The third coil has a third plurality of turns configured to carry a third write current in a third direction.

Abstract: A magnetic write head having a tapered trailing edge and having a magnetic layer formed over a trailing edge of the write pole at a location recessed from the ABS, the magnetic layer being separated from the trailing edge of the write pole by a thin non-magnetic layer. The thin non-magnetic layer is preferably sufficiently thin that the magnetic layer can function as a portion of the write pole in a region removed from the ABS. A trailing magnetic shield is formed over the write pole and is separated from the write pole by a non-magnetic trailing gap layer. A non-magnetic spacer layer can be formed over the magnetic layer to provide additional separation between the magnetic layer and the trailing magnetic shield.

Abstract: The invention discloses a MAMR head that has the STO stack placed at the trailing side of the write element, with both STO and write element completely self-aligned in the cross track direction. A method for defining both the MP and the STO stack geometries in a single step is also described.

Abstract: An example magnetic writing head includes a main magnetic pole, a coil to generate an ampere magnetic field to magnetize the main magnetic pole to cause the magnetized main magnetic pole to generate a magnetic field, and a laminated body. The laminated body includes a first magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole and a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole.

Abstract: A suspension board with circuit includes a metal supporting board; an insulating layer formed on the metal supporting board having an opening penetrating in the thickness direction formed therein; and a conductive pattern formed on the insulating layer including an external-side terminal electrically connected to an external board. The external-side terminal is filled in the opening of the insulating layer. In the metal supporting board, a support terminal electrically insulated from the surrounding metal supporting board and electrically connected to the external-side terminal is provided. The suspension board with circuit includes a metal plating layer formed below the support terminal and an electrically-conductive layer interposed between the support terminal and the metal plating layer having a thickness of 10 nm or more to 200 nm or less.

Abstract: An actuator pivot bearing is disposed at least partially within a pivot bearing bore of a disk drive actuator. The actuator pivot bearing includes a fixed inner bearing shaft having a lower portion that is attached to the disk drive base. It may also have a rotatable outer bearing sleeve that is attached to the actuator body. The actuator pivot bearing also includes an adsorptive element (e.g. comprising activated carbon, silica gel, zeolites) disposed between the fixed inner bearing shaft and an inner surface of the pivot bearing bore. In certain embodiments, the adsorptive element may optionally be disposed within an actuator pivot bearing internal cartridge space. A restricted clearance between the rotating and fixed bearing components may partially block a diffusion path from the pivot bearing lubricant to the read head. The adsorptive element may be disposed adjacent that restricted clearance.

Abstract: In one embodiment, a magnetic head includes a substrate having a media support surface; a gap coupled to the substrate, the gap having at least one of a magnetoresistive (MR) sensor and a writer; a closure coupled to the gap on a side thereof opposite the substrate, said closure forming a portion of the media support surface; and a material formed in one or more recesses extending into the media support surface of at least one of the substrate and the closure.

Abstract: Embodiments of the present invention aim suppress the generation of spin torque noise in a current perpendicular to plane magnetoresistive head. According to one embodiment, when sensing current is applied to a current perpendicular to plane magnetoresistive head from a free layer toward a first pinned layer, a configuration wherein the relative angle between the magnetization of a second pinned layer and the magnetization of the free layer is in the range of 70 to 80 degrees is used. Further, when sensing current is applied to a current perpendicular to plane magnetoresistive head from a first pinned layer toward a free layer, a configuration wherein the relative angle between the magnetization of a second pinned layer and the magnetization of the free layer is in the range of 100 to 110 degrees is used.

Abstract: A method and system for providing a magnetic transducer is described. The method and system include providing a seed layer and providing at least one adjustment layer on the seed layer. The method and system also include providing a hard bias structure on the at least one adjustment layer. The seed layer has a first template including a first template dimension and a first texture. The at least one adjustment layer has a second template including a second template dimension and a second texture. The hard bias structure has a third template including a third template dimension and a third texture. The second template is between the first template and the third template.

Abstract: A method for controlling power generation equipment, including bringing a generator online into a shared power bus environment, is described. The method includes determining whether the shared power bus is currently active, and whether a voltage determination fault is present with respect to a specific generator. Where the shared power bus is inactive and no fault is present, the generator is brought online in response to a load request. Where the shared power bus is active, the generator is synchronized with the shared power bus before the generator is brought online.

Abstract: Systems, methods, and devices are presented for mitigating arc fault events in a photovoltaic system. An aspect of this disclosure is directed to a photovoltaic system for generating electrical power. The photovoltaic system includes one or more solar panels, and one or more shuttering assemblies, each of which is configured to selectively limit the quantity of light received by one or more of the solar panels. One or more sensing devices detect characteristics of an arc fault event in the photovoltaic system, and output signals indicative thereof. A control module is operatively connected to the shuttering assemblies and the sensing devices. The control module is configured to direct the one or more shuttering assemblies to reduce the quantity of light received by at least one of the one or more solar panels in response to the output signals indicating there is an arc fault event in the photovoltaic system.

Abstract: According to one embodiment, an integrated circuit includes a power supply terminal, an output terminal, a high side output transistor including a first electrode connected to the power supply terminal, a second electrode connected to the output terminal, and a control electrode, a transistor which is connected between the control electrode and the second electrode of the high side output transistor and which short-circuits the control electrode and the second electrode in an on state, a trigger circuit connected between the power supply terminal and the control electrode of the transistor, and an Electro Static Discharge (ESD) protection circuit connected between the power supply terminal and the output terminal. When a voltage larger than a maximum rating voltage is applied to the power supply terminal, the trigger circuit operates, the transistor turns on, the high side output transistor turns off, and the ESD protection circuit operates.

Abstract: The electronic device for protecting against a polarity reversal of a DC power supply voltage comprises, produced within one and the same integrated circuit, an N-channel main transistor (TP) mounted on the line of expected positive polarity of the power supply voltage and command means (MCM) for the main transistor comprising a charging pump circuit (CP), associated with a dynamic biasing circuit (MCTRL) for the substrate regions of active components connected to the main transistor.

Abstract: A system and method for conditioning an alternating current (“AC”) power transmission for supply to a load circuit.

Abstract: An electrical switching apparatus includes a first terminal, a second terminal, a neutral conductor, separable contacts electrically connected between the terminals, an operating mechanism to open and close the contacts, a fused varistor electrically connected between the first terminal and the neutral conductor; and a trip mechanism including a trip coil cooperating with the operating mechanism to trip open the contacts. A second varistor is electrically connected in series with the trip coil between the first terminal and the neutral conductor. A thyristor is electrically connected in parallel with the second varistor. An overvoltage detection circuit is electrically interconnected with and causes the thyristor to energize the trip coil and cause the trip mechanism to trip open the contacts responsive to overvoltage between the first terminal and the neutral conductor.

Abstract: A hardware overvoltage disconnecting circuit wherein a DC power supply module is disconnected from a power network when the AC power network is in the state of overvoltage. The circuit includes a disconnecting relay and a voltage detection circuit. The disconnecting relay is connected in series between an AC power network and a power factor correction circuit of a power supply module. A first sampling terminal of the voltage detection circuit samples the voltage of the AC power network between the AC power network and the disconnecting relay, and an output of the voltage detection circuit is connected to a control terminal of the disconnecting relay. When the AC power network is in the state of overvoltage, the disconnecting relay is disconnected and the power supply module is disconnected from the AC power network. When the voltage of the AC power network is normal, the disconnecting relay is connected.

Abstract: A method of controlling a solid state power controller includes determining whether a voltage across a switch of the solid state power controller is within a predetermined voltage threshold. If the voltage is outside of the predetermined voltage threshold, the current is limited to a non-zero current. As result of this method a SSPC in Offstate stays off and a SSPC in Onstate stays on during lightning events.

Abstract: Provided are an overcurrent protection device and an overcurrent protection system which can provide time differences among the timings for executing the retry operations among a plurality of overcurrent protection devices connected to a common power supply. When a battery voltage (VBA) becomes a value equal to or lower than a threshold voltage after an FET (Q1) of an IC circuit (51-1) is turned on, all FETs (Q1) of the respective IC circuits are turned off, and a time until the battery voltage (VBA) reduces to a value lower than a threshold voltage after the turning-on of the FET (Q1) is clocked. When the time is smaller than 400 ?sec, the count value N is incremented. Further, turning-on of the FETs (Q1) is repeated after the lapse of the standby time (Tp) set randomly. When the count value N reaches 7, the FET (Q1) of the IC circuit 51-1 is held in the turned-off state.

Abstract: The application discloses novel internal structures of energy conditioners, assemblies of external structures of energy conditioners and mounting structure, and novel circuits including energy conditioners having A, B, and G master electrodes.

Abstract: A surge arrester includes a short-circuit device. The short-circuit device includes at least one first base element. The first base element is rigidly connected in an electrically conducting and mechanical manner to a first electrode of the surge arrester. The short-circuit device also includes at least one spring arm arranged on the base element. The free end of the spring arm has a distance to the base element, and the spring arm extends over at least two adjoining electrodes of the surge arrester.

Abstract: An electronic weapon has an installed deployment unit from which an electrode, tethered by a filament, is launched. According to various aspects of the present invention, the deployment unit includes a housing, two filaments stored in the housing prior to launching, and two electrodes, each coupled to the end of one of the filaments. A propellant in the housing launches the electrodes responsive to the launch device. In operation, an end portion of each filament experiences a tensile stress during launching. The tensile stress follows a nonlinear path along a surface of an undulation of an interior of the respective electrode.

Abstract: There is provided an ignition system which is capable of surely operating by electric energy stored in a capacitor for ignition while separating an igniter from electric circuits for communication and ignition without producing improper operation through static electricity and noise and is compact and excellent in the productivity.

Abstract: An electronic device package includes first and second electrodes of a package substrate. The first electrode has fingers formed from a first metal level and is configured to operate at a first DC potential. The second electrode has fingers formed from the first metal level interdigitated with the fingers of the first electrode. A via conductively connects the second electrode to a second metal level. The second metal level is configured to operate at a second DC potential. The first and second DC potentials are thereby capacitively coupled through the interdigitated electrodes.

Abstract: In a multilayer ceramic electronic component including directly plated external electrodes, in an exposed area defined by exposed portions of a plurality of internal conductors, an area ratio of the exposed portions in an end section of the exposed area is smaller than an area of exposed portions in a center section of the exposed area.

Abstract: In a method for manufacturing a laminated ceramic electronic component, after a plating layer for an external terminal electrode is formed by applying copper plating to an end surface of a component main body at which respective ends of a plurality of internal electrodes primarily including nickel are exposed, when a heat treatment at a temperature of about 800° C. or more is applied in order to improve adhesion strength and resistance to moisture of the external terminal electrode, voids may occur in the plating layer. The step of applying a heat treatment at a temperature of about 800° C. or more to a component main body with plating layers formed thereon includes not only a step of maintaining a top temperature of about 1000° C. or more but also a step of maintaining a temperature of about 600° C. to 900° C. at least once before the step of maintaining the top temperature.

Abstract: A load center includes a pair of generally parallel busbars for distributing a single phase of electricity to circuit breakers through a multitude of stabs that form respective bridges between the pair of busbars to provide respective bidirectional paths for dissipating heat from each of the stabs to both of the busbars and to provide a connection point for a pair of circuit breakers installed into the load center.

Abstract: A terminal box is provided with a plurality of terminal plates (10) electrically connected to a solar cell module, bypass diodes (20) each electrically connected to two corresponding ones of the respective terminal plates (10), and a housing (31) having the respective terminal plates (10) and bypass diodes (20) arranged inside. The respective terminal plates (10) and bypass diodes (20) are mold-covered by a resin portion (30), whereby the housing (31) is integrally formed. The resin portion (30) of the housing (31) includes a thinner portion (15) deposited and having an outer shape in conformity with that of the bypass diodes (20).

Abstract: An electrical watthour meter socket includes a first sub-enclosure receiving high voltage components and a second sub-enclosure receiving lower voltage components. The first and second sub-enclosures are electrically isolated from each other access control components to allow independent access to lower voltage components in the second sub-enclosure without the use of personal protective equipment required for exposure to components carrying high voltage.

Abstract: The invention relates to a power semiconductor device (100) cooling assembly for cooling a power semiconductor device (100), wherein the assembly comprises an actively cooled heat sink (102) and a controller (208; 300), wherein the controller (208; 300) is adapted for adjusting the cooling efficiency of the heat sink (102) depending on the temperature of the high current carrying semiconductor junction comprised in the power semiconductor device (100).

Abstract: A resin overcap with an IC tag used as an overcap being on a metal cap and having an IC tag so that the transmission and reception of signals will not be disturbed by the metal cap, comprising a top panel and a cylindrical side wall hanging down from the circumferential edge of the top panel and in which the metal cap is fitted, wherein a step or a protrusion is formed on an upper portion on the inner surface of the cylindrical side wall to prevent the upward motion of the metal cap fitted in the cylindrical side wall, and an IC tag provided with an IC chip is mounted on the top panel to maintain a predetermined distance D to a top plate of the metal cap fitted into the cylindrical side wall.

Abstract: A portable computer system is provided having a first unit with touch-sensitive LCD display screen and a detachable second unit having a keyboard. The first unit includes a support structure movable between a stowed position and a deployed position, which can support the first unit in an inclined position on a planar surface. The support structure can help support the first unit when mounted on the second unit, standing alone, or both.

Abstract: A retention device includes a holder and an extractable casing mounted to the holder. The retention device includes a base, a cover opposite to the base, and a lateral plate extending from the base and interconnecting the base and the cover. The base, the side plates, and the cover cooperatively define a rectangular first cavity with an opening at a lateral side. The casing and the holder cooperatively define a second cavity. A size of the second cavity is less than that of the first cavity.

Abstract: A motherboard assembly includes a motherboard, a universal serial bus (USB) interface arranged on the motherboard. Also included is a USB device, a mounting seat and a cover. The USB device engages with the USB interface. The mounting seat is attached to the motherboard and enclosing the USB interface, and the cover is mounted to the mounting seat and resists against a top of the USB device to fasten the USB device to the USB interface.