Abstract: The invention provides, in some aspects, devices for image acquisition that use seals (e.g., O-rings) between concentrically disposed portions of an enclosure and an optics assembly (or sub-assemblies thereof) in order to protect image acquisition components from the surrounding environment (and vice versa) while, at the same time, providing adequate friction for both adjusting and locking focus. Such devices include, in one aspect of the invention, an image capture medium (e.g., a CMOS sensor, CCD array, etc.) that is disposed within an enclosure and an optics assembly that is also disposed within that enclosure, rotatably. The optics assembly, which includes at least a lens, can have a cylindrical outer diameter along at least a portion of its length that is received within the enclosure along a length that has a corresponding cylindrical inner diameter. A first seal (e.g., an “O-ring”) is disposed between, and in contact with, the optics assembly and the enclosure, e.g., along these corresponding lengths.

Abstract: Imaging systems in which an undedicated optical component—-i.e., a component that would be present in the system even in the absence of image stabilization—is configured to undergo corrective motion and/or other correction of image data, and thus to function as a stabilization component. The stabilization component may be a mirror and/or a lens, and a positioner may be provided to tilt, rotate, and/or otherwise precisely adjust the position and orientation of the stabilization component to improve image resolution, compensate for platform motions, and/or improve image tracking. Because an undedicated optical component functions as the stabilization component, the stabilization occurs upstream, rather than downstream, from separation (if any) of the incoming image data into two or more beams.

Abstract: An optical element includes an optical film; a substrate; and an adhesive layer disposed between the optical film and the substrate, wherein the adhesive layer is made of NbOx, where 0<x<2.5.

Abstract: An optical diffuser structure for field emitting display element provides uniform lightness contrast to a display, and includes a glass substrate as main body, wherein plural black stripe blocking layers is arranged on the panel of the substrate for covering the light diffusing path of the display element, a transparent glue layer being further arranged on the surfaces of the black stripe blocking layer and glass substrate, thus the black stripe blocking layer is protected from the damage caused by sandblasting process, at last, a nebulized surface is formed on the transparent glue layer, thereby, through the diffuser structure, the light generated by the display element possesses a uniformity without any reduction and loss of lightness.

Abstract: It is an object to provide a high-visibility antireflection film having an antireflection function which can further reduce reflection and a display device that has the antireflection film. A plurality of projections in a pyramidal shape (hereinafter, referred to as pyramidal projection) that are adjacent to each other are provided, and the refractive index of the projection is made to change by the physical pyramidal shape to the outer side (air side) from a surface of a display screen, so that reflection of light is prevented. In addition, the plurality of pyramidal projections are each covered with a film formed of a material having a higher refractive index than the pyramidal projections.

Abstract: An image sensor and method for fabricating an image sensor are provided. The image sensor includes a substrate and a microlens array in a checkerboard pattern. In some embodiments, the checkerboard pattern involves alternating hydrophilic and hydrophobic microlenses.

Abstract: The invention relates to an ophthalmological display comprising an optical imager (10) for shaping light beams emitted by an optical element of a light beam generator system (20) and directing them towards the eye (O) of the wearer as to enable information content (I) to be viewed, said display being fitted with a device for adjusting focusing by adjusting the length of said light beams between said element and the imager. According to the invention, the generator system comprises a stationary part (21) referred to as a stationary plate, to which said optical element is connected by a moving connection (22) that is adjustable by an actuator device.

Abstract: The invention provides an optical device, including a light-transmitting substrate, optical means for coupling light into the substrate by total internal reflection, and a plurality of partially reflecting surfaces carried by the substrate, characterized in that the partially reflecting surfaces are parallel to each other and are not parallel to any of the edges of the substrate.

Abstract: Surface reflective portable eyewear display system and methods are disclosed. Invention comprises of vertical image inverting system that displays image in a mirror-flipped way on projection displays attached to the temples of a frame at an angle facing lenses of an eyewear. Said lenses of invention are half-silvered mirror coated, reflecting vertically inversed image in a mirror like way to the eyes of a wearer, making said reflected image a transparent virtual image over regular view through the glasses normally perceived. Invention incorporates a unique utility design that fits the shape of a head of a wearer and is pleasantly concealed.

Abstract: An optical device includes a refracting surface refracting light, a flat surface transmitting light, and a prism group including prism elements having at least the refracting surface. Here, the prism elements are arranged with a plurality of pitches therebetween on a straight line parallel to a reference surface on which the prism elements are disposed.

Abstract: A zoom lens includes, in order from the object side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power. When a lens positional state changes from a maximum wide angle state to a maximum telephoto state, the second lens group moves on an optical axis toward an object, and the first and the third lens groups also move in an optical axis direction such that a gap between the first lens group and the second lens group decreases, while gap between the second lens group and the third lens group is increased. When a change in subject position occurs, close-range focusing is performed by movement of the third lens group, and image shift is provided by shifting the second lens group in directions approximately perpendicular to the optical axis.

Abstract: The present invention is directed to a high variable power zoom lens that ensures a flange-back or a backfocal distance required for typical 35-mm film cameras while keeping an angle of view sufficient to cover the wide-angle for an APS-size imaging plane dimensioned smaller than 35 mm. The high variable power zoom lens has the first lens group L1 of positive refractivity closest to the subject, the second lens group L2 of negative refractivity second closest to the subject, the third lens group L3 of positive refractivity, and the fourth lens group L4 of positive refractivity farthest from the subject, and the zoom lens satisfies the requirements 0.6?|f 2|/fW?0.73 where f2 is the focal length of the second lens group and fw is the focal length of the entire optics moved to the wide-angle end, and also satisfies the requirements 2.2?f3/fW?3.7 where f3 is the focal length of the third lens group.

Abstract: A standard zoom lens system includes a negative first lens group, a positive second lens group, and a positive third lens group, in this order from the object. Upon zooming from the short focal length extremity to the long focal length extremity, the distance between the negative first lens group and the positive second lens group decreases, and the distance between the positive second lens group and the positive third lens group increases. The negative first lens group includes a negative lens element and a positive lens element, in this order from the object. The most image-side surface of the positive second lens group is a concave surface. The standard zoom lens system satisfies the following condition: 0.15<Rs/fT<0.

Abstract: The zoom lens system is used for forming an optical image of an object with a variable magnification, and, in order from the object side, comprises a first lens unit G1 of negative optical power, a second lens unit G2 of positive optical power and a third lens unit G3 of positive optical power. The lens units move respectively along the optical axis so that a magnification is changed with changing a distance between the respective lens units. The second lens unit G2 comprises at least three lens elements including an object side lens element of the second lens unit which is a positive lens element arranged on the most object side with the surface of strong curvature facing the object side, and an image side lens element of the second lens unit which is a positive lens element arranged on the most image side with the convex surface facing the object side.

Abstract: A lens barrel includes: first and second movable lens units; first and second drive sources for moving the first and second movable lens units in a direction parallel to an optical axis, respectively; guide members for each retaining the first and second movable lens units and for guiding movements of the first and second movable lens units; and a reference position detector for detecting reference positions for the first and second movable lens units, in which: the reference position detector has light emitting receiving elements; the first and second movable lens units have sleeves each engaged with the guide members and have light blocking portions for detecting the reference positions by the light emitting and receiving elements of the reference position detector; and the first and second lens units can move in the optical axis direction, with their respective light blocking portions passing each other without any interference.

Abstract: A fixed-focus lens includes a first lens group and a second lens group. The two lens groups have positive refractive powers. The first lens group is composed of a first negative lens, a second negative lens, a third negative lens, a fourth positive lens and a fifth positive lens arranged in sequence from an object side to an image side. The first lens is an aspheric lens. The second lens group is composed of two cemented lens and a positive lens between them. The fixed-focus lens satisfies the following conditions: (1)5.0<FL45/F<7.5; (2)3.5<FG2/F<4.8; (3)FG2/H>3.755, wherein FL45 is an effective focal length (EFL) from the fourth lens to the fifth lens, FG2 is an EFL of the second lens group, F is an EFL of the fixed-focus lens, and H is the maximum image height of the image side.

Abstract: To provide a lens system advantageous for downsizing a moving group and suitable for large aperture ratio formation and ultra telescopic formation while maintaining an excellent optical function from a long distance to a close range. A first lens group having a positive refracting power, a second lens group having a negative refracting power, a third lens group having a positive refracting power, and a fourth lens group having a negative refracting power are provided in order from an object side. The first lens group includes a first sub group and a second sub group. The second sub group is provided with a refracting power stronger than that of the first sub group and a following condition equation is satisfied. 1.5<f1a/f1b<2.2 ??(1) where, f1a denotes a focal length of the first sub group and f1b denotes a focal length of the second sub group.

Abstract: A wide-angle lens includes, in order from the object side to the image side, a first lens element of negative refractive power, a second lens element of positive refractive power, a third lens element of positive refractive power and a cemented doublet element of positive refractive power consisting of a fourth lens element and a fifth lens element cemented together. The combined focal length of the second, third, fourth and fifth lens elements satisfies one specified condition, which allows the wide-angle lens to be effectively shortened and makes the construction thereof compact.

Abstract: A handheld magnifier comprising a handle; a magnifying lens; and a coupler for releaseably coupling the magnifying lens to the handle; wherein the coupler is coupled to the magnifying lens and comprises at least a first finger and a second finger; and the handle has a first receptacle for receiving the first finger of the coupler and a second receptacle for receiving the second finger of the coupler; wherein the fingers and the receptacles are coordinatingly configured so that the coupler is insertable into the handle when oriented such that the first finger is alignable with and insertable into the first receptacle and the second finger is alignable with and insertable into the second receptacle; and the first finger is not insertable into the second receptacle and/or the second finger is not insertable into the first receptacle.

Abstract: A barrel is configured for receiving the plurality of lenses therein and for automatically aligning respective optical axes of the plurality of lenses. At least one protruding rib is formed on an internal surface of the barrel and extends along/from the internal surface of the barrel, in a direction parallel to an axis of the barrel. The protruding rib is configured for elastically supporting the plurality of lenses there against and for automatically aligning the respective optical axes of the plurality of lenses.

Abstract: The present invention provides a lens barrel array, a lens array and a method of making the same. The lens barrel array is realized all together in collective operation, and intended to be separated later on to be used as lens barrels of individual module. The lens array including plates, each of which has a hollow portion, attached together and lenses mounted in the hollow portions respectively. The lens array is intended to be separated later on to be used as lens barrels of individual module. The method includes the steps of providing a plurality of plates with hollow portions thereon, installing lenses into the hollow portions respectively, and attaching the plates together to form lens barrel array with a plurality of lens, each of which includes the hollow portion and the lenses, intended to be separated later on to be used as lens barrels of individual module.

Abstract: An assembling system for assembling lens includes a base, a lens-assembling jig mounted on the base, an elastic member, and a push rod. The lens-assembling jig includes a first cylinder, a second cylinder coaxially connected to the first cylinder, and a post rod. The elastic member is disposed between the base and the second cylinder. The post rod is configured for pushing the optical elements into the first cylinder from the second cylinder. The system for assembling lens can accurately assemble the optical elements, so it can improve the capability of the lens module to capture image. The present invention also discloses an assembling method using the assembling system.

Abstract: Cross-view mirrors for buses and other vehicles which provide modified image sizes. The mirror assemblies have lens members created from the shape of a portion of an elliptical or circular toroid volumetric shape with an elliptical or circular cross-sectional shape. A first embodiment has an elliptical toroid volumetric shape with an elliptical cross-sectional shape. A second embodiment has an elliptical toroid volumetric shape with a circular cross-sectional shape.

Abstract: An enclosed mechanism having a motor driven mirror assembly 42 that when mounted in positions 104 or 105 on a vehicle 106, extends and pivots to a position (see FIG. 4), that allows the vehicle's driver to have an unencumbered field of vision 103 using a high quality mirror 50. Also included with this mechanism is a control module FIG. 6A that is wired into the vehicle's electrical system FIG. 6B, allowing the mechanism to work automatically during vehicle operation or can be operated manually for cleaning and maintenance. Guiding the moving parts are 21, 41, and 42, are integral guides 51 and 52 which are incorporated into an internal mounting plate 13 and in the front enclosure 11. Also, during this movement, a torsion spring 25 is the force that used for pivoting as a cam follower 30 that follows the inside wall of the front enclosures 11, that is designed to act as the cam surface.

Abstract: In a reflecting mirror, an adhesive layer formed of a mixture of silicon dioxide and aluminum oxide is formed between a substrate and an aluminum reflective layer, and, on the aluminum reflective layer, a dielectric layer is formed that has, laid one after another on the aluminum reflective layer, a low-refraction layer containing silicon dioxide and a high-refraction layer formed of a compound of titanium oxide and lanthanum oxide.

Abstract: A manufacturing method of a color filter comprising the following steps is provided. At first, a transparent substrate is provided. Next, a black matrix is formed on the transparent substrate to define a plurality of pixel areas on the transparent substrate. Then, an isolation layer is formed and patterned on the black matrix and then Red/Green/Blue color filter inks are filled into each of the pixel areas separately by inkjet printing. After that, the color filter inks are dried to form color filter units and optionally the isolation layer can further be patterned to form plenty of photo spacers on the black matrix. The isolation layers prevented the color filter inks from spilling out of the pixel areas and color mixing problems during color filter inkjet fabrication. Besides, it is characterized that the color filter units can be formed with even thickness.

Abstract: One embodiment in accordance with the invention is a method that comprises determining if a slider of a data storage device is to perform a read or write operation with a disk of the data storage device. If the slider is to perform the read or write operation, the slider is set at a grazing contact with the disk for a predefined time frame to perform the read or write operation. The predefined time frame is approximately how long the slider can be in grazing contact with the disk without experiencing any substantial instability. After the predefined time frame expires, the slider is caused to move out of contact with the disk.

Abstract: A write head tester is disclosed. The write head tester includes a rotatably coupled magnetic media having a stand-off thereover. In addition, a write head holder is fixedly coupled with the tester. The write head holder receives and electrically couples a removably coupleable write head such that the removably coupleable write head is capable of performing a write on the magnetic media. A read head is also fixedly coupled with the tester. The read head is utilized for performing a read on the magnetic media. Furthermore, an evaluator is provided for accessing a result of the read on the magnetic media and evaluating the removably coupleable write head based on the read.

Abstract: A partial response is utilized to record information on a medium and then regenerate the information from the medium. A regenerating system undergoes equalization including subjecting a regeneration signal from the medium to the convolution of (k?s·D) (where D is one (1) bit delay operator, and k and s are positive integer). Such convolution is performed in the regenerating system so that low-frequency band noises are reduced with an improved error rate. The information is decoded from the equalized signal by use of maximum-likelihood detection.

Abstract: An information storage device includes a record head and a data recording medium. The record head includes a magnetic substance having magnetic domain walls and records data in the data recording medium. In a method of operating the information storage device, a first high frequency current or a high frequency magnetic field is supplied to the magnetic substance while magnetic domain walls of the magnetic substance are moved.

Abstract: Embodiments of the present invention pertain to preparing for servo write. According to one embodiment, a servo write preparation heater is positioned over at least a portion of a surface of a disk. The servo write preparation heater is used to heat the at least portion of the surface of the disk to prepare the surface for servo write.

Abstract: A thermally assisted magnetic head comprises: a slider substrate, a first surface located opposite to a medium-facing surface, and side surfaces located between the medium-facing surface and the first surface; a magnetic head portion having a near-field light generator on the medium-facing surface side, and a magnetic recording element, the magnetic head portion being fixed to one of the side surfaces; and a laser diode element a relative position of which to the slider substrate is fixed so that emitted light thereof can reach the near-field light generator; a relation of ?in<?max is satisfied, where ?in is a wavelength of the emitted light from the laser diode element immediately before the emitted light reaches the near-field light generator, and ?max is a wavelength of irradiating light at which an efficiency of generation of near-field light generated from the near-field light generator is maximum.

Abstract: In an information storage device, a writing magnetic layer is formed on a substrate and has a magnetic domain wall. A connecting magnetic layer is formed on the writing magnetic layer, and an information storing magnetic layer is formed on an upper portion of side surfaces of the connecting magnetic layer. A reader reads information stored in the information storing magnetic layer.

Abstract: A disk drive controller includes a servo system operable to associate a time stamp with an arrival of a servo wedge, a firmware loop and core PLLs in the read channel. The firmware loop is operable to determine a period between the arrival of a pair of consecutive servo wedges and produce a desired frequency of when to read/write data to disk based on the period between the arrival of a pair of consecutive servo wedges. Processing circuitry is operable to adjust a clock signal, wherein the clock signal itself is not locked to the data and produce a fine control signal for the core PLLs in the read channel. These core PLLs are operable to determine a phase and/or frequency associated with when an analog signal is sampled and/or written to disk, wherein these core PLLs comprises Fractional N Sigma Delta PLLs.

Abstract: A buffer member and impact absorbing device can buffer various impacts, namely from an extremely strong impact such as drop to a weak impact or repetitive vibration such as daily operation. The buffer member is formed of a soft flexible part that deforms compressively, has cushion performance, and has a substantially rectangular parallelepiped shape, and a sheet-like substrate part that has flexibility, is made of resin material, and has a substantially rectangular shape. A slit is formed by substantially vertically slotting the flexible part from its one surface to a midway so as to leave a surplus material part, and the substrate part is inserted and mounted to the slit formed in the flexible part. A relatively weak impact force is absorbed by the surplus material part of the flexible part, and a strong impact force that has not been completely absorbed by the surplus material part is absorbed by interaction between the flexible part and the substrate part.

Abstract: A fly height control apparatus for supporting a magnetic recording transducer comprises a trifurcated slider. A piezoelectric transducer is coupled to a surface of the central trifurcation of the trifurcated slider. The surface is opposite and parallel to an air bearing surface of the trifurcated slider. An electrical coupling means couples the piezoelectric transducer to a suspension.

Abstract: One embodiment in accordance with the invention is an apparatus comprising a movement guide that can be utilized with a data storage device. The movement guide can be for preventing a magnetic head of the data storage device from contacting a disk of the data storage device during operation.

Abstract: A mechanism for maintaining a constant fly-height of a slider comprises a capacitive fly-height change sensor and an electrostatic fly-height controller. The capacitive fly-height change sensor is configured for coupling with the slider, which is in a head gimbal assembly. The capacitive fly-height change sensor is also configured for measuring a capacitance between the slider and a surface of a disk through the use of a fly-height change sensing signal, and outputting a sensor voltage which is substantially proportional to a sensed change in said capacitance. The electrostatic fly-height controller is coupled with the capacitive fly-height change sensor and configured to couple with the slider. The electrostatic fly-height controller is configured to process the sensor voltage into a fly-height control signal for electrostatically maintaining a constant fly-height of the slider relative to the surface of the disk.

Abstract: A head slider is configured to fly a head above a recording medium with an air flow. The head slider includes a recessed portion in a surface facing the recording medium. The recessed portion is formed in a shape that does not form a region in which a shear stress due to the air flow is concentrated.

Abstract: There is provided a technique capable of eliminating the need to create data for compensating the displacement of a servo pattern occurring at the time of writing the servo pattern using an amplitude method and thereby of significantly reducing the production time of a disk medium. A servo pattern writing apparatus that uses a write head to write a servo pattern on a recording medium according to an amplitude method, comprises: a position sensor 8 that detects the displacement amount of the write head with respect to its reference position in the track crossing direction; and a delay amount adjustment circuit 10 that writes a servo pattern in correspondence with a servo pattern write phase amount which is set for compensating the displacement amount detected by the position sensor 8 at the time of demodulation of the servo pattern.

Abstract: A magnetic recording medium enhances the quality of a reproducing signal. The magnetic recording medium has a servo pattern formed in a servo pattern area on at least one surface of a disk-shaped substrate by a concave/convex pattern having convex portions (recording areas) and concave portions (non-recording areas), and a data track pattern formed by the concave/convex pattern in a data recording area on the at least one surface of the disk-shaped substrate. In a state where recording data is not recorded in the data recording area, the convex portions in the servo pattern area are DC-magnetized, and the convex portions in the data recording area are AC-magnetized.

Abstract: A linear tape drive system includes a tape having a path direction, a data track having data transitions at an azimuthal orientation relative to the path direction, and a servo track having servo positioning transitions. A linear tape drive module is configured to read and/or write to the data track at the azimuthal orientation and read the servo positioning transitions.

Abstract: Data tracks are written across a width of a tape by positioning a first head section across the tape and writing a first subset of data tracks onto the tape with a first plurality of write elements on the first head section. A second head section is positioned across the tape separately from the first head. A second subset of data tracks is written onto the tape with a second plurality of write elements on the second head section so that the second subset is interleaved with the first subset. A third head section is positioned across the tape separately from the first head and the second head. The first subset and second subsets are read with a plurality of read elements on the third head section to verify that data was correctly written onto the tape.

Abstract: Selection of servo signals for peak detection of timing based servo tracks of magnetic tape for lateral positioning of heads relative to the magnetic tape. Servo signals from magneto-resistive servo read head(s) reading a magnetic tape are digitized by analog to digital converter(s); digital peak measurement apparatus is configured to sense the digital converter(s), and provide positive peak values and negative peak values of the digitized servo signals; and control apparatus is configured to determine the greater of the provided positive peak values or negative peak values, and select servo signals having the greater values for a servo channel. Servo apparatus is configured to respond to the selected servo signals to control the lateral positioning of the servo read head(s).

Abstract: A disk drive uses a hybrid analog-digital acceleration feedforward control system and method for cancellation of rotational disturbances. A rotational vibration (RV) sensor is used with an analog circuit to generate an analog feedforward signal that is summed with the analog actuator control signal from the servo control processor. The analog feedforward signal is also converted to a digital feedforward signal and input to the processor. When the actuator gain deviates from its design value, the processor retrieves the appropriate actuator gain value from a lookup table. The processor uses the actuator gain value and the digital feedforward signal to calculate a modified feedforward signal, which is a fraction of the digital feedforward signal. The processor also calculates a feedback control value from the servo positioning information and a feedback controller.

Abstract: A magnetic disk drive apparatus includes a magnetic disk, a ramp mechanism, a pair of magnetic head sliders each having an MR read head element, and a load/unload mechanism for retracting the pair of magnetic head sliders to the ramp mechanism under unloading states and for putting the pair of magnetic head sliders back to face front and back surfaces of the magnetic disk respectively under loading states. The ramp mechanism has head resting portions and a pair of permanent magnets. The pair of magnetic head sliders respectively resting in the head resting portions in a manner to face to each other during unloaded states. The pair of permanent magnets generates a closed loop magnetic field applied to the pair of magnetic head sliders rested in the respective head resting portions. The magnetic fields applied to the respective magnetic head sliders are in opposite directions along the track width of the magnetic head sliders.

Abstract: A head slider for a magnetic disk drive is provided. The head slider includes a leading edge, a trailing edge, an inner diameter side and an outer diameter side of an air bearing surface. The head slider further includes a first recess on the air bearing surface of the head slider, a second recess on the air bearing surface of the head slider wherein the second recess is deeper than the first recess and a third recess on the air bearing surface of the head slider wherein the third recess is deeper than the second recess and is disposed within the second recess, forming a first pocket.

Abstract: A micro-machined vibration-damping device comprises a patterned visco-elastic polymer and a substrate for receiving the patterned visco-elastic polymer.

Abstract: A disk drive unit includes a first cover having a first part of magnet component and a head stack assembly mounted on the first cover; and a second cover assembled with the first cover, which has a second part of magnet component, a spindle motor, at least one disk and a ramp adjacent to the disk; wherein a ramp tool opening is formed on the first cover corresponding to the ramp, through which a ramp tool can extend to hold the head stack assembly in a loading status. The invention also discloses a ramp tool used for assembling the disk drive which has its disk and HSA assembled in two different halves, which includes a tool body; and a holding means extending from the tool body to hold a lift tab of a head stack assembly in a loading status, wherein the lift tab is engaged with a ramp in the disk drive unit.

Abstract: A disk drive spoiler for reducing particle accumulation in a hard disk drive is provided. The spoiler includes a body portion for directing airflow generated by a rotating disk, the rotating disk comprising a middle diameter and an outer diameter wherein the body portion directs airflow away from the outer diameter of the disk. The spoiler also includes an end portion for directing airflow away from the middle diameter of the disk towards the outer diameter of the disk wherein the body portion comprises a perforation through the body for reducing suction of particles onto the disk surface.