| 40th week of 2008 patent applcation highlights part 37 |
| Patent application number | Title | Published |
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| 20080239447 | ILLUMINATION SYSTEM - An illumination system including a coherent light source and a speckle-reducing module is provided. The coherent light source is adopted for providing a light beam. The speckle-reducing module is disposed at an optical path of the light beam. The speckle-reducing module includes a rotator, a carrier and an optical path adjusting member. The rotator is adopted for rotating on a reference plane about a spindle axis passing through the rotator. The spindle axis is substantially perpendicular to the reference plane. The carrier is disposed at the rotator. The optical path adjusting member is disposed at the carrier and at the optical path of the light beam. The optical path adjusting member has an incident surface inclined at an angle with respect to the reference plane. | 2008-10-02 |
| 20080239448 | OPTICAL MODULATION DEVICE AND OPTICAL MODULATION METHOD - According to an aspect of an embodiment, an optical modulation device includes a Mach-Zehnder modulator and a controller. The Mach-Zehnder modulator is supplied a drive signal and a bias voltage. The Mach-Zehnder modulator modulates inputted light on the bases of the drive signal and the bias voltage. The drive signal selectively is superimposes a predetermined frequency signal. The bias voltage selectively is superimposes the predetermined frequency signal. The controller selects a superimposing target which is the drive signal or the bias voltage so as to change modulation formats. | 2008-10-02 |
| 20080239449 | ELECTRODE AND INTERCONNECT MATERIALS FOR MEMS DEVICES - A microelectromechanical (MEMS) device is presented which comprises a metallized semiconductor. The metallized semiconductor can be used for conductor applications because of its low resistivity, and for transistor applications because of its semiconductor properties. In addition, the metallized semiconductor can be tuned to have optical properties which allow it to be useful for optical MEMS devices. | 2008-10-02 |
| 20080239450 | Controllable Optical Lens - A controllable optical lens comprises a chamber housing first and second fluids, the interface between the fluids defining a lens surface. An electrode arrangement controls the shape of the lens surface and is also for sensing the shape of the lens surface. The electrode arrangement comprising a plurality of electrode segments at different angular orientations about an optical axis of the lens. Surface characteristics are sensed at a plurality of angular orientations from the plurality of electrode segments, and in this way the local shape characteristics of the lens at different angular positions around the lens can be determined. In this way, asymmetry can be detected. | 2008-10-02 |
| 20080239451 | Control System for Dimmable Windows - Electrically dimmable windows for aircraft are powered by energy harvesting devices on-board the aircraft. The harvested energy is stored and used to control the opacity of the windows based on individual window opacity settings selected either by passengers or a cabin attendant. Each window has an associated control circuit that controls the electrical power applied to the window based on the selected opacity setting. The control circuit includes a low energy usage processor that remains in a sleep mode until a change in the opacity setting is detected. Each control circuit may include a radio transceiver that receives control signals from a transmitter operated by the cabin attendant in order to simultaneously remotely control the opacity settings of multiple windows. | 2008-10-02 |
| 20080239452 | SMART SUNGLASSES, HELMET FACESHIELDS AND GOGGLES BASED ON ELECTROCHROMIC POLYMERS - Eyewear exhibiting a variable light transmittance functionality is achieved by including a smart lens incorporating an electrochromic (EC) polymer, switchable between a first state and a second state in response to a voltage selectively applied thereto. The smart eyewear includes the smart lens, a voltage source, and a support. The EC polymer transmits more light in the first state than in the second state, because changing the state of the EC polymer varies the light transmittance of the smart lens. The voltage source is configured to provide the voltage required to switch the EC polymer between the first state and the second state, while the support member is configured to support the smart lens and enable a user to wear the smart eyewear. Embodiments can include sensors and controllers to automate the switching, as well as energy harvesting elements to increase battery life. | 2008-10-02 |
| 20080239453 | Thermal control of optical filter with local silicon frame - Briefly, in accordance with one or more embodiments, a thermally controlled optical filter comprises a frame coupled to an etalon where the frame includes a resistive thermal device disposed on the frame to obtain thermal measurements of the etalon during operation. The frame may be generally L-shaped or generally square-shaped. The frame may include a fillet that is generally planar, generally beveled or trapezoidal, or generally circular in shape. A heater may be additionally disposed on the frame. The etalon and frame subassembly may be bonded to a micro hot plate that is capable of heating the etalon to an operational temperature. | 2008-10-02 |
| 20080239454 | Mirror device - A spatial light modulator supported on a device substrate includes a plurality of light modulation elements to modulate a light emitted from a light source. The spatial light modulator and the device substrate further comprises a cyclic structure on a surface of the spatial light modulator and/or the device substrate for preventing a reflection of the incident light from the cyclic structure. In an exemplary embodiment the cyclic structure includes cyclic structural elements having a distance between two cyclic elements shorter than the wavelength of an incident light for preventing a reflection of the incident light from the cyclic structure. | 2008-10-02 |
| 20080239455 | MICROELECTROMECHANICAL DEVICE AND METHOD UTILIZING CONDUCTING LAYERS SEPARATED BY STOPS - A microelectromechanical system (MEMS) device includes a reflective element that includes at least one stop member. The device also includes an electrode and an aperture that extends at least partially through the electrode. The aperture has a boundary. The device has an electrically nonconductive surface within the aperture or on a portion of the boundary of the aperture. A support structure separates the reflective element from the electrode. The reflective element can be moved between a first position and a second position. The stop member is spaced from the electrically nonconductive surface when the reflective element is in the first position. A portion of the stop member is in contact with the electrically nonconductive surface when the reflective element is in the second position. The reflective element and the electrode are electrically isolated from each other when the reflective element is in the second position. | 2008-10-02 |
| 20080239456 | MICRO OSCILLATING DEVICE AND MICRO OSCILLATING DEVICE ARRAY - A micro oscillating device includes a frame, an oscillating part including a first drive electrode for application of a reference electric potential, and a connecting part for connecting the frame and the oscillating part to each other, where the connecting part defines an axis of an oscillating motion of the oscillating part. A second drive electrode is fixed to the frame to cooperate with the first drive electrode for generation of a driving force for the oscillating movement. The first drive electrode includes a first end extension and a second end extension separated from each other and extending in a direction crossing the axis. The second drive electrode is within a separation distance between the first and the second end extensions. | 2008-10-02 |
| 20080239457 | Optical Modulation - An optical modulator comprising a spacing-controllable etalon having at least one sprung micro-mirror suspended above a substrate. At least one electrically insulating stop is provided between the micro-mirror and the substrate to avoid short-circuit when the micro-mirror is drawn towards the substrate by an applied voltage. An optical detector detects the time of arrival of a first laser pulse. A control circuit predicts from this an arrival time of the next incident laser pulse and, responsive to a control signal, either retains the micro-mirror in its pulled-down state held against the insulating stops or releases the micro-mirror at a time predicted to maximise or minimise the light transmitted through the modulator. After a time interval calculated to permit a predetermined number of mechanical oscillations, the micro-mirror is pulled back down onto the stops. | 2008-10-02 |
| 20080239458 | Transmissive, Optically Addressed, Photosensitive Spatial Light Modulators and Color Display Systems Incorporating Same - An optically addressed, photoconductive spatial light modulator (SLM) operates in a transmissive mode and is capable of modulating a wide spectrum of visible light. There is no pixel structure or native pixel resolution in the SLM. The SLM has no photodiodes and does not rectify. A light projection system ( | 2008-10-02 |
| 20080239459 | Display device and method of manufacturing the same - Disclosed in an electrophoretic display device having a charged ink layer. In this disclosed device, the ink layer is disposed on the active region (an image display region) and the peripheral region located around the active region, and an electric field is applied to a portion of the electrophoretic ink film corresponding to the peripheral region. Therefore, the peripheral region does not look stained. | 2008-10-02 |
| 20080239460 | METHOD OF DRIVING ORGANIC TRANSISTOR AND ELECTROPHORETIC DISPLAY DEVICE - Provided is a method of driving an organic transistor formed on a substrate, wherein the substrate is sealed by a sealing material, and a bias voltage for compensating for threshold voltage of the organic transistor is supplied to the organic transistor at least at the time of an operation of the organic transistor. | 2008-10-02 |
| 20080239461 | Electrophoresis display device and electronic apparatus - The invention provides an electrophoresis display device having a plurality of pixels that is arrayed in a two-dimensional pattern. The electrophoresis display device according to an aspect of the invention includes: a first electrode that is formed in each of the pixels; a second electrode that is formed opposite to the first electrode; an electrophoresis element that is sandwiched between the first electrode and the second electrode and has electrophoresis particles that are charged electrically; and an insulation layer that is formed at a region between each two of the first electrodes that are arrayed adjacent to each other. | 2008-10-02 |
| 20080239462 | Composite material with controllable resonant cells - An apparatus for controlling propagation of incident electromagnetic radiation is described, comprising a composite material having electromagnetically reactive cells of small dimension relative to a wavelength of the incident electromagnetic radiation. At least one of a capacitive and inductive property of at least one of the electromagnetically reactive cells is temporally controllable to allow temporal control of an associated effective refractive index encountered by the incident electromagnetic radiation while propagating through the composite material. | 2008-10-02 |
| 20080239463 | Optical Scanning Device - An optical scanning device provides a radiation source | 2008-10-02 |
| 20080239464 | TRANSMISSIVE ACTIVE GRATING DEVICE - Provided is a transmissive active grating device that transmits light or diffracts light according to an applied voltage. The transmissive active grating device includes: an electro optical material layer which transmits light; a first electrode formed on a bottom surface of the electro optical material layer; and an array of a plurality of second electrodes arranged on a top surface of the electro optical material layer in parallel with each other. | 2008-10-02 |
| 20080239465 | DELAY-LINE DEMODULATOR AND METHOD OF ADJUSTING A PHASE SHIFT IN THE DEMODULATOR - In a method of phase adjustment for the demodulator | 2008-10-02 |
| 20080239466 | Device and Method for the Demodulation Electromagnetic Wave Fields - A new pixel in semiconductor technology comprises a photo-sensitive detection region ( | 2008-10-02 |
| 20080239467 | OPTICAL AMPLIFIER - An optical amplifier including: a first amplifying unit amplifying an input light by utilizing a first excitation light and thereby outputting a first amplified light; a second amplifying unit amplifying the first amplified light by utilizing a second excitation light and thereby outputting a second amplified light; and a control unit detecting a first absorption rate of the first excitation light and a second absorption rate of the second excitation light, and controlling a level of the first excitation light and a level of second excitation light based on the first absorption rate and the second absorption rate. The first absorption rate corresponds to a ratio of the first excitation light absorbed in the first amplifying unit, and the second absorption rate corresponds to a ratio of the second excitation light absorbed in the second amplifying unit. | 2008-10-02 |
| 20080239468 | OPTICAL DIRECT AMPLIFIER FOR WDM OPTICAL TRANSMISSION - An optical direct amplifier lowers the power consumption with a simple structure at a low cost. This amplifier includes an optical amplification medium (e.g., optical fiber) that carries out an optical amplification function in response to optical excitation by an exciting light source (e.g., semiconductor laser); a temperature controller for controlling the temperature of the amplification medium; a heat radiating member for radiating the heat generated by the light source; and a heat transmission regulator (e.g., Peltier module) for allowing the heat to flow into the amplification medium from the light source and for preventing the heat from flowing into the light source from the amplification medium. The amplification medium is heated by application of the heat generated by the light source by way of the heat radiating member and the heat transmission regulator. | 2008-10-02 |
| 20080239469 | GAIN CONTROL APPARATUS, OPTICAL TRANSMISSION APPARATUS, GAIN CONTROL METHOD FOR OPTICAL AMPLIFIER, AND WAVELENGTH MULTIPLEX OPTICAL TRANSMISSION SYSTEM - The present invention relates to an apparatus for controlling a gain of an optical amplifier, and the apparatus comprises a target gain calculating unit for calculating, as a target gain for an optical amplifier, a value obtained by increasing or decreasing a gain (output) of signal light as the number of wavelengths of wavelength-multiplexed signal light decreases, and a control signal outputting unit for outputting a control signal to the optical amplifier so as to amplify the wavelength-multiplexed signal light with the target gain calculated by the target gain calculating unit. This promptly suppresses a fluctuation of signal light level, particularly, a fluctuation of output light power of an optical amplifier stemming from a variation of the number of wavelengths of wavelength-multiplexed signal light. | 2008-10-02 |
| 20080239470 | INDIVIDUAL BAND GAIN EQUALIZER FOR OPTICAL AMPLIFIERS - A control apparatus comprises a light monitoring unit for dividing a signal wavelength band into at least a band in which output light power of an optical amplifier tends to decrease at an decrease in the number of signal wavelengths and a band including a gain deviation band, and for monitoring inputted light power for the individual divided bands, a calculation unit for obtaining the number of signal wavelengths in the individual divided bands based on a monitor result, and a target gain correction unit for correcting a target gain based on a result of the calculation. This suppresses a transient variation of signal light level due to SHB or SRS at a high speed with a simple configuration without deteriorating noise characteristic, thus enabling optical amplifiers to be further disposed in a multi-stage fashion, which can lengthen the transmission distance of a transmission system including an optical add/drop unit. | 2008-10-02 |
| 20080239471 | Optical module and processing method - The present invention relates to an optical module which is capable of amplifying light to be amplified to high power and which has a structure for effectively reducing influences of damage to other optical parts, and heat generation. The optical module includes a fiber unit constituted by an optical coupler, an amplification optical fiber, and an absorption optical fiber. Each of the amplification optical fiber and the absorption optical fiber has a core, a first cladding, a second cladding, and a third cladding. Further, each of the fibers allows the light to be amplified to propagate in a single mode in each of the cores, and allows pumping light to propagate in a multimode in the core, the first cladding, and the second cladding. The core of the amplification optical fiber is doped with an amplification dopant for amplifying the light to be amplified. The second cladding of the absorption optical fiber is doped with an absorption dopant for absorbing the pumping light. | 2008-10-02 |
| 20080239472 | Semiconductor optical amplification module, optical matrix switching device, and drive circuit - A semiconductor optical amplification module that can suppress ringing without increasing power consumption or circuit size or inhibiting high-speed operation. A semiconductor optical amplifier outputs an optical signal inputted according to driving current outputted from a drive circuit. A diode is connected in parallel with the semiconductor optical amplifier. As a result, it becomes possible to suppress ringing without connecting a large resistor to the drive circuit. | 2008-10-02 |
| 20080239473 | OPERATION MICROSCOPE - An operation microscope includes a microscope body having an illumination optical system which illuminates a subject, a lens barrel, and a main observation optical system which observes the subject, a microscope unit for an assistant attached to the microscope body, and a guide rail which is disposed in the lens barrel of the microscope body, and extends in a circumferential direction about a center of an optical axis of an objective lens of the microscope body. The microscope unit for an assistant is disposed in the guide rail to be movable between a usage position and a non-usage position in a circumferential direction of the lens barrel. | 2008-10-02 |
| 20080239474 | Confocal microscope for imaging of selected locations of the body of a patient - A confocal imaging microscope, especially for the cellular imaging of the skin at selected locations, is ergonomic in use, compact, and positionable at the locations thereby providing for patient comfort during imaging. An imaging head ( | 2008-10-02 |
| 20080239475 | CONFOCAL MIMCROSCOPE SYSTEM - A confocal microscope system capable of observing a bright field image and a fluorescent image together with a confocal image can be achieved with a simple configuration. The confocal microscope system, for observing the bright field image, the fluorescent image, the confocal image acquired from the observation sample, is characterized in comprising: a confocal scanner unit having at least a microlens array disc and a pin hole array disc, for scanning a face of the observation sample by a plurality of beam spots, and a relay lens connected to a camera for acquiring observed images; a microscope for holding the observation sample and illuminating an observation light for observing the bright field image and an excitation light for observing the fluorescent image on the observation sample, and having a port part for outputting the observation light acquired from the observation sample to the confocal scanner unit; and a detour light path unit selectively inserted between the port part of the microscope and the confocal scanner unit for branching the observation light from the observation sample and guiding the branched observation light to the relay lens in the confocal scanner unit. | 2008-10-02 |
| 20080239476 | Illuminating module and surgical microscope incorporating said illuminating module - An illuminating module ( | 2008-10-02 |
| 20080239477 | OBSERVATION SYSTEM - A suitable clear image is obtained in observation of a specimen exhibiting dynamic motion, for example, during in vivo observation. The invention provides an observation system including an optical apparatus including an objective unit that is positioned close to a specimen; and a stabilizer adhered to the specimen, at least around an observation region of the optical apparatus, to restrain motion of the specimen, wherein a heat-transfer preventing member for preventing transfer of heat between the stabilizer and the specimen is provided on the stabilizer. | 2008-10-02 |
| 20080239478 | SYSTEM FOR AUTOMATICALLY LOCATING AND MANIPULATING POSITIONS ON AN OBJECT - Methods and systems for determining the relative location and attitude between two objects by means of positional tags and positional tag interrogation sensors are disclosed. Specific embodiments are addressed to positioning of microscope slides, assembly of mechanical components, and locating construction tools relative to a work piece. | 2008-10-02 |
| 20080239479 | Observation Device and Binoculars - An observation device has an ocular lens and an objective lens and is adapted to observe through the ocular lens an intermediate image of an object formed by the objective lens. The observation device further includes a display section provided either on a light path connecting the ocular lens and the objective lens or on a light path branched off from the light path and displaying an image, and a light path switching section provided on the light path connecting the ocular lens and the objective lens and switching the light to be guided from the ocular lens to the objective lens and the image displayed on the display section to be guided to the ocular lens or the objective lens, thereby providing a small-sized observation device and binoculars having a display function. | 2008-10-02 |
| 20080239480 | Endoscope Relay Lens - A relay set ( | 2008-10-02 |
| 20080239481 | Portable screen assembly - A portable screen assembly includes: a casing having an opening extending in a longitudinal direction on the upper surface thereof, and formed by a pair of separable case members that extend in the longitudinal direction; a spring-biased roll rotatably mounted in the casing; a screen wound around the spring-biased roll in a storage position and extended from the opening in use; a top bar fixed to one end of the screen which is used as a cover body to close the opening in the storage position; and an extendable column having one end erectably pivoted from a center part of a side face of the casing to hold the screen in a stretched state. | 2008-10-02 |
| 20080239482 | APPARATUS AND METHOD OF DISPLAYING THE THREE-DIMENSIONAL IMAGE - A three-dimensional image display apparatus displays element images each composed of a set of parallax component images. An exit pupil array is located opposite the display surface. Exit pupils of the array correspond to the respective element images. The horizontal pitch of the exit pupils or an integral multiple of the horizontal pitch is set equal or slightly smaller than an integral multiple of the horizontal pitch of pixels. The parallax component images are oriented in different directions via the exit pupil. Principal beams from the parallax component images via the exit pupils are emitted substantially parallel to one another. The element image contains substantially the same parallax image component in two pixel areas in which two adjacent parallax image components are otherwise displayed. The same parallax image component is oriented in different directions via the corresponding exit pupil. | 2008-10-02 |
| 20080239483 | STEREOSCOPIC DISPLAYING APPARATUS - A stereoscopic displaying apparatus includes: an image generating section having a right eye image generating region on which a right eye image light is generated and a left eye image generating region on which a left eye image light is generated; a polarizing plate that emits the right eye image light and the left eye image light generated by the image generating section in the same polarizing direction; and a polarization axis control plate on which the right eye image light and the left eye image light from the polarizing plate are incident, and from which the right eye image light and the left eye image light are emitted as linear polarized lights of which polarization axes are orthogonalized to each other or circularly polarized lights of which polarization axes are rotated in the directions opposite to each other. The polarization axis control plate includes: a right eye polarizing region on which a right eye image light is incident; a left eye polarizing region which is arranged adjacent to the right eye polarizing region and on which a left eye image light is incident; a plurality of light blocking sections arranged on a plane facing the polarizing plate, each of which is a boundary between the right eye polarizing region, and the left eye polarizing region that blocks the right eye image light and the left eye image light; and a plurality of apertures formed between each of the plurality of light blocking sections that transmit therethrough the right eye image light and the left eye image light. The image light emitted from one of the right eye polarizing region and the left eye polarizing region and incident on one of the plurality of apertures goes to the inside of the angle of field while the image light emitted from the other of the right eye polarizing region and the left eye polarizing region adjacent to each other and incident on the one aperture goes to the outside of the angle of field. | 2008-10-02 |
| 20080239484 | POLARIZED LIGHT TRANSMISSION SCREEN AND STEREOSCOPIC IMAGE DISPLAYING APPARATUS USING THE POLARIZED LIGHT TRANSMISSION SCREEN - A polarized light transmission screen and a stereoscopic image displaying apparatus capable to display a clear stereoscopic image with few little cross talks over a wide wavelength range. In a polarized light transmission screen | 2008-10-02 |
| 20080239485 | METHOD FOR MANUFACTURING STEREOSCOPIC DISPLAYING APPARATUS, METHOD FOR MANUFACTURING PHASE SHIFT PLATE, AND THE PHASE SHIFT PLATE THEREBY - A method for manufacturing a stereoscopic displaying apparatus is provided. The method for manufacturing a stereoscopic displaying apparatus including: an image displaying section that has an image generating section including a right eye image generating region on which a right eye image is generated and a left eye image generating region on which a left eye image is generated and emits a right eye image light including the right eye image and a left eye image light including the left eye image as linear polarized lights of which polarization axes are in parallel with each other; and a phase shift plate having a first polarizing region and a second polarizing region, when the right eye image light is incident on the first polarizing region and the left eye image light is incident on the second polarizing region, respectively, that emits the incident right eye image light and left image light as linear polarized lights of which polarization axes are orthogonalized to each other or circularly polarized lights of which polarization axes are rotated in the directions opposite to each other. The method for manufacturing the stereoscopic displaying apparatus includes: arranging the first polarizing region and the second polarizing region adjacent to each other on the phase shift plate; providing a light blocking section that blocks the incident right eye image light and left eye image light: on the boundary between the first polarizing region and the second polarizing region of one surface of the phase shift plate; and attaching to the image displaying section the phase shift plate such that one surface of phase shift plate on which the light blocking section is provided faces the image displaying section. The step of attaching the phase shift plate to the image displaying section includes adhering a periphery outside the regions on which the phase shift plate is provided, which is one surface of the image displaying section from which the right eye image light and the left eye image light are emitted to a side surface adjacent to the incident surface of the phase shift plate on which the right eye image light and the left eye image light are incident with adhesive. | 2008-10-02 |
| 20080239486 | ANTIREFLECTION LAMINATE, POLARIZING PLATE AND IMAGE DISPLAY DEVICE - An antireflection laminate includes a support; a layer having hardcoat property; an overcoat layer; and a low refractive index layer, wherein at least one layer of the layer having hardcoat property and the overcoat layer comprises a metal oxide particle, and the antireflection laminate has a surface haze value of 0 to 12%, an internal haze value of 0 to 60%, and a Sm value of 40 to 200 μm. | 2008-10-02 |
| 20080239487 | Multilayered phase difference plate and projector - [Problems to be Solved] To provide a multilayered phase difference plate that obtains a higher incident light polarization conversion efficiency than that of a related-art multilayered phase difference plate. | 2008-10-02 |
| 20080239488 | ANTIREFLECTION FILM, POLARIZING PLATE AND IMAGE DISPLAY DEVICE - An antireflection film includes, in a following order, a transparent substrate film; a medium refractive index layer; a high refractive index layer; and a low refractive index layer, wherein the medium refractive index layer is (A) a medium refractive index layer having a refractive index of 1.60 to 1.64 at a wavelength of 550 nm and a thickness of 55.0 to 65.0 nm, the high refractive index layer is (B) a high refractive index layer having a refractive index of 1.70 to 1.74 at a wavelength of 550 nm and a thickness of 105.0 to 115.0 nm, and the low refractive index layer is (C) a low refractive index layer having a refractive index of 1.32 to 1.37 at a wavelength of 550 nm and a thickness of 85.0 to 95.0 nm. | 2008-10-02 |
| 20080239489 | Optical polarizer and method for fabricating the same - An optical polarizer includes a supporting member and a polarizing film supported by the supporting member. The polarizing film includes at least one layer of a carbon nanotube film, and the carbon nanotubes in a given carbon nanotube film are aligned in the same direction therein. A method for fabricating the optical polarizer includes the steps of: (a) providing a supporting member; (b) providing at least one layer of a carbon nanotube film, the carbon nanotubes in a given carbon nanotube film aligned along the same direction; and (c) adhering a given carbon nanotube film to the supporting member to form the optical polarizer. | 2008-10-02 |
| 20080239490 | Wide-acceptance-angle circular polarizers - A circular polarizer comprising a single linear polarizer producing a linear state of polarization and at least one phase retardation film layered with the single linear polarizer. In a first embodiment, the at least one phase retardation film includes at least one uniaxial A-plate phase retardation film and at least one uniaxial C-plate phase retardation film. In a second embodiment of the invention, the circular polarizer includes a linear polarizer and at least one biaxial phase retardation film layered with the linear polarizer. In another example of the circular polarize of the second embodiment, at least one uniaxial A-plate phase retardation film and/or at least one uniaxial C-plate phase retardation film is also layer with the linear polarize and the biaxial phase retardation film. | 2008-10-02 |
| 20080239491 | Optical compensation films having positive birefringence for liquid crystal display - A method for controlling positive birefringence in an optical compensation film (positive C-plate) having high positive birefringence throughout the wavelength range 400 nm<λ<800 nm is provided. The method includes selecting polymers with optically anisotropic subunits (OASUs) that exhibit the buttressing effect, wherein the OASUs may be disks, mesogens or aromatic rings substituted with birefringence enhancing substituents. The method further includes processing the polymer by solution casting to yield a polymer film with high birefringence without the need for stretching, photopolymerization, or other processes. These optical compensation films may be used in LCDs, particularly IPS-LCDs. | 2008-10-02 |
| 20080239492 | SPECTROMETER DESIGNS - Various embodiments include spectrometers comprising diffraction gratings monolithically integrated with other optical elements. These optical elements may include slits and mirrors. The mirrors and gratings may be curved. In one embodiment, the mirrors are concave and the grating is convex. The mirrors and grating may be concentric or nearly concentric. | 2008-10-02 |
| 20080239493 | DIFFRACTIVE OPTICAL ELEMENT AND OPTICAL SYSTEM USING THE SAME - A diffractive optical element includes stacked first and second diffraction gratings made of different materials. The materials of the first and second diffraction gratings are glass. The first and second diffraction gratings have grating surfaces contacted to each other. The materials satisfy a predetermined condition when Tg | 2008-10-02 |
| 20080239494 | Tunable Light Filter - A tunable light filter has a transparent plate, a first mirror surface coupled to the transparent plate, and a base spaced from the transparent plate and defining a flexible base region. The flexible base region has at least one cell and a membrane coupled over the at least one cell. The flexible base region also has a second mirror surface coupled to the membrane. The tunable light filter also has an actuator which can move the second mirror surface relative to the first mirror surface. Methods of manufacturing a tunable light filter are also discussed. | 2008-10-02 |
| 20080239495 | OPTICAL FILTER - An optical filter including a bump, a first conformal transflective film, a conformal space layer and a second conformal transflective film is provided. The bump has a surface, wherein different areas of the surface have different normal vectors, respectively. Moreover, the first conformal transflective film is disposed on the surface of the bump, while the conformal space layer is disposed on the first conformal transflective film. Besides, the second conformal transflective film is disposed on the conformal space layer. By modulating the thickness of the conformal space layer, different colors is shown after the light is processed by the first conformal transflective film, the conformal space layer and the second conformal transflective film. The optical filter has the advantages of high color saturation and high light transmittance. Furthermore, the optical filter can mitigate color washout phenomenon appeared under large viewing angle. | 2008-10-02 |
| 20080239496 | OPTICAL FILTER - An optical filter has a multilayer thin film comprising first to i-th layers stacked in alternate layers of high and low refractive indices on a transparent substrate. Respective odd-numbered layers (Sigh refractive index layers) and respective even-numbered layers (low refractive index layers) form repetitive sequences of layers each of which cyclically changes in optical thickness throughout the multilayer tin film. Each of k-th from-the-bottom alternate layers of high and low refractive indices has such an optical thicknesses as meet the following conditional expressions (1) and (2), concurrently: | 2008-10-02 |
| 20080239497 | SELECTIVE ABSORBING - An interference coating between a display and an intended viewing area that selectively absorbs incident optical energy in at least one first wavelength region and selectively transmits incident optical energy in at least one second wavelength region. | 2008-10-02 |
| 20080239498 | RANDOM PHASE MASK FOR LIGHT PIPE HOMOGENIZER - An apparatus for illuminating a light valve ( | 2008-10-02 |
| 20080239499 | DISPLAY APPARATUS - A display apparatus includes an image display unit having a plurality of pixels arranged on a predetermined curved surface; and a plurality of microlenses arranged on the predetermined curved surface such that they correspond to and face the plurality of pixels on the image display unit. Light rays that exit from the plurality of microlenses are collected into the eye so that a virtual image is placed at a position apart from the eye by at least a distance of distinct vision. | 2008-10-02 |
| 20080239500 | Plastic sheets with lenticular lens arrays - A lenticular sheet, in one exemplary embodiment, includes a first surface having at least two portions, an opposing second surface, and a plurality of lenticular lenses formed in the first surface. Each portion of the first surface includes a number of lenticular lenses per centimeter that is different from the number of lenticular lenses per centimeter of an adjacent portion of the first surface. | 2008-10-02 |
| 20080239501 | COLOR-SEPARATION OPTICAL SYSTEM AND IMAGING APPARATUS - A curve representing a characteristic of a blue-light reflecting dichroic film DB and a curve representing a characteristic of a red-light reflecting dichroic film DR are configured to have shapes that track an ideal spectral characteristic of green. Accordingly, it is possible to obtain a characteristic approximated to the ideal spectral characteristic without using a trimming filter having a dichroic film in an exiting surface of a prism. Since it is not necessary to use the trimming filter having the dichroic film, it is possible to prevent ghost and flare from occurring due to the dichroic film of the trimming filter. Accordingly, it is possible to embody an imaging apparatus having the ideal spectral characteristic with ghost and flare being reduced. | 2008-10-02 |
| 20080239502 | Controllable Optical Lens - A controllable optical lens system, comprises a chamber housing first and second fluids, the interface between the fluids defining a lens surface. An electrode arrangement controls the shape of the lens surface and has first and second electrodes. A parameter is determined by the system dependent on the electrical resistance through at least one of the lens fluids between the first and second electrodes. Thus, the series resistance through a lens fluid is used as a measure of meniscus position. | 2008-10-02 |
| 20080239503 | PROJECTION OBJECTIVE OF A MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS - A projection objective of a microlithographic projection exposure apparatus comprises a manipulator for reducing rotationally asymmetric image errors. The manipulator in turn contains a lens, an optical element and an interspace formed between the lens and the optical element, which can be filled with a liquid. At least one actuator acting exclusively on the lens is furthermore provided, which can generate a rotationally asymmetric deformation of the lens. | 2008-10-02 |
| 20080239504 | ZOOM LENS AND IMAGING DEVICE - A zoom lens comprises: a stationary group that is stationary at the time of variable power; and a variable power group, disposed on an image side of the stationary group, that makes a variable power operation by moving in an optical axis direction at the time of variable power, wherein the stationary group comprises: a first lens group including a negative meniscus lens and a positive lens and having a positive refractive power as a whole; and a second lens group, disposed on the image side of the first lens group, including: a negative lens group including a negative meniscus lens and a positive lens; and a positive lens group including at least one positive lens, in order from an object side, the second lens group having a positive refractive power as a whole. | 2008-10-02 |
| 20080239505 | ZOOM LENS AND IMAGER APPARATUS - A zoom lens comprises first, second, third and fourth lens groups in order from an object side, so as to change magnification by changing a spacing between the lens groups. The first lens group has a positive refractive power as a whole and comprises, in order from the object side, a negative meniscus lens, a reflecting member that bends an optical path nearly 90 degrees and a positive lens of a resin material having at least one aspheric surface. The second lens group has a negative refractive power as a whole and comprises a negative lens of a resin material on an most object side of the second lens group. A conditional expression given below is satisfied provided that P | 2008-10-02 |
| 20080239506 | VARIABLE-POWER OPTICAL SYSTEM AND IMAGING DEVICE - A variable-power optical system includes, in order from an object side, first to fifth lens groups. The first and third lens groups are fixed at a time of varying magnification and at a time of focusing. The second, fourth and fifth lens groups are movable at the time of varying magnification. The first, third and fourth lens groups have positive refractive powers. The second and fifth lens groups have negative refractive powers. The fourth lens group has a focusing function. The following conditional expressions are satisfied. | 2008-10-02 |
| 20080239507 | IMAGE PROJECTION OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS - An image projection optical system introduces light from an image-forming element by a zoom lens via an optical element. The optical element satisfies Σ(Di×Ndi)/fw>4.0. The zoom lens includes, in order from a magnification side, first and second lens units, and lens units disposed closer to a reduction side than the second lens unit. The first lens unit is a negative lens unit. The lens units disposed closer to the reduction side than the second lens unit satisfy |dn/dt|<1.0×10 | 2008-10-02 |
| 20080239508 | METHOD FOR CONTROLLING MOVEMENTS OF AN OPTICAL ZOOM DEVICE - A method for controlling movements of an optical zoom device, the method includes the steps of: setting a timer to zero, and setting a time limit; checking whether the wide-angle button or the telephoto button is pressed; starting the timer and moving the optical zoom device to a point between the current position and the next position in a direction corresponding to the pressed wide-angle button or the pressed telephoto button if the wide-angle button or the telephoto button is pressed; checking the timer to determine whether the time on the timer is less than the time limit; checking whether the pressed button is released if the time on the timer is less than the time limit; confirming a position which is nearest to the optical zoom device along the direction of current movement if the pressed button is released; and moving the optical zoom device to the confirmed position. | 2008-10-02 |
| 20080239509 | Compact imaging lens assembly for an imaging-based bar code reader - An imaging lens assembly ( | 2008-10-02 |
| 20080239510 | IMAGING LENS, CAMERA MODULE, AND PORTABLE TERMINAL APPARATUS - An imaging lens comprises, in order from an object side: a first lens having a positive refractive power and a meniscus shape and having a convex surface directed to the object side; a second lens having a negative refractive power in the vicinity of an optical axis of the imaging lens; and a third lens having a positive refractive power in the vicinity of the optical axis, wherein at least one surface of each of the second lens and the third lens is an aspheric surface; and the imaging lens satisfies the following conditional expression expressions: | 2008-10-02 |
| 20080239511 | Two-piece type optical imaging lens - A two-piece type optical imaging lens that includes a first lens element with positive refractive power, a second lens element with positive refractive power, an IR cut-off filter and an image sensor arranged along an optical axis in order from an object side. The first lens element and the second lens element are both meniscus aspherical molded glass lens while a convex surface of the first lens element is on the object side and a convex surface of the second lens is on the image side. The two-piece type optical imaging lens satisfies following conditions: 0.4f≦d<0.9f, 0.5f≦|R | 2008-10-02 |
| 20080239512 | IMAGING LENS, MANUFACTURING METHOD THEREOF, AND COMPOUND LENS - In an imaging lens, one compound lens and two single lenses are arranged in a lens barrel. On the light output side of the lens barrel, a filter is arranged with a distance from lens barrel. With a further distance from the filter, an imaging element is arranged. In the compound lens, a resin lens is bonded to a base member lens, having an output surface center of the resin lens displaced by a prescribed amount relative to an output surface center of the base member lens, so that a transmission decentration amount attributed to the base member lens, not including the resin lens, and the single lenses is cancelled by a transmission decentration amount by the resin lens when taken as a whole lens system. Thus, the imaging lens capable of suppressing reduction in resolving power due to transmission decentration of the lenses is obtained. | 2008-10-02 |
| 20080239513 | Microlens windows and interphased images for packaging and printing and methods for manufacture - The present microlens for packaging and printing includes a package including a body; and a microlens window located on the body to display at least one graphical image in a first portion of the microlens window and the contents of the package through a second portion of the microlens window. | 2008-10-02 |
| 20080239514 | Lens system and projector utilizing the same - A high-performance lens system including lens elements of small diameters for projecting on to a screen or the like in an enlarged fashion images from light valves such as mainly DMDs (Digital Micromirror Devices) for forming images by changing reflecting directions of light is provided. | 2008-10-02 |
| 20080239515 | IMAGING LENS AND IMAGING APPARATUS - An imaging lens is provided and includes: in order from an object side of the imaging lens, a first lens group having a positive power as a whole; a second lens group including a lens in the most object side thereof, the lens having a concave surface on the object side thereof; a third lens group including a cemented lens of a lens having a positive power and a lens having a negative power; and a fourth lens group having a negative power as a whole. | 2008-10-02 |
| 20080239516 | PHOTOGRAPHING LENS UNIT INCLUDING PLURALITY OF LENSES AND IMAGING APPARATUS WITH THE SAME - In a photographing lens unit, an aperture diaphragm, a first lens having positive refractive power, a second lens having negative refractive power, a third lens of a positive meniscus lens with a concave surface on the object side, an ND filter, a fourth lens of a negative meniscus lens with a convex surface on the object side, an IR cut filter, and an imaging element are disposed in order from the object side to the imaging element side. In the third lens, a surface shape on the object side changes from concave to convex as it is away from an optical axis, and a surface shape on the image side changes from convex to concave as it is away from the optical axis. In the fourth lens, a surface shape on the object side changes from convex to concave as it is away from the optical axis. | 2008-10-02 |
| 20080239517 | IMAGING LENS AND IMAGING DEVICE - An imaging lens includes, in order from an object side, a first lens G | 2008-10-02 |
| 20080239518 | Optical Sensor - The present invention relates to an optical sensor for the monitoring of combustion processes in a combustion chamber wherein the optical sensor at least comprises a lens system facing the combustion chamber, a waveguide and a sheath surrounding the lens system and one end of the waveguide characterized in that the lens system consists of at least one essentially plano-concave lens and a double concave lens wherein the planar surface of the plano-concave lens is exposed to the combustion chamber. The invention also relates to a method for the manufacture of said sensor. | 2008-10-02 |
| 20080239519 | LENS MODULE - An exemplary lens module includes a number of optical components, a barrel receiving the optical components therein, an image sensor and a holder engaged with the barrel. The holder receives the image sensor therein. The holder has an electromagnetic shielding coating formed thereon. The electromagnetic shielding coating is comprised of a polymeric matrix and a number of carbon nanotubes dispersed in the polymeric matrix and is configured for blocking electromagnetic interference from outside the holder. The lens module can block electromagnetic interference. | 2008-10-02 |
| 20080239520 | Optical module having the light incident surface of a lens inclined on a substrate and a method of manufacturing the same - An optical module having a substrate which includes a light-emitting device mounting area provided on its first principal surface, a lens mounting groove with a cross section of V shape, and a support groove formed orthogonal to the lens mounting groove, and an inclined surface to allow a lens element to slide therealong. The support groove includes a bottom surface, a first side surface toward the light-emitting device mounting area, a second side surface opposed to the first side surface, and a first and a second portion defined by the lens mounting groove. The inclined surface is provided on at least one of the side surfaces. Thus, light would not be reflected by the optical module to be returned to a light source. | 2008-10-02 |
| 20080239521 | LENS BARREL - A lens barrel capable of forming high-accuracy barrel body and simply adjusting a tilt and a position in an optical axis direction without using dedicated portions is provided. The lens barrel includes a front barrel and a rear barrel. An inner diameter of a portion, containing a focus lens of the front barrel, is 1.15 times or more as large as an inner diameter of a portion containing a zoom lens of the rear barrel. The rear barrel and the front barrel are coupled by a coupling screw. A convex portion has an adjustment face for adjusting a distance between the focus lens and the zoom lens and is formed on a coupling face of the front barrel. A convex portion includes a reference face serving as a reception portion and is formed on the rear barrel. | 2008-10-02 |
| 20080239522 | Solid-state imaging device and electronic device including same - A camera module of the present invention includes a plurality of projections | 2008-10-02 |
| 20080239523 | Head mounted display device - An HMD device has an imaging optic for the right eye and an imaging optic for the left eye. Each imaging optic so images an image, which is generated in the object plane, that the image can be observed by a user in an image plane and each of the imaging optics includes an optical element ( | 2008-10-02 |
| 20080239524 | POSITIONERS AND MICROSCOPES INCORPORATING THE SAME - In accordance with one embodiment of the present invention, a positioning device comprises a microscope assembly and a lens positioning assembly. The lens positioning assembly comprises a lens support subassembly and a bi-directional positioning guide. The lens support subassembly comprises a translating rod, while the positioning guide comprises a coiled spring. The coiled spring is canted relative to a longitudinal axis of the rod. The inner periphery of the coiled spring engages in a spring loaded state an outer periphery of the rod such that the coiled spring provides a frictional force about the outer periphery of the rod. This frictional force provided by the coiled spring about the outer periphery of the rod is sufficient to hold the rod within the inner periphery, but permit infinitely variable bi-directional movement of the rod through the inner periphery under an applied force. Additional embodiments are disclosed and claimed. | 2008-10-02 |
| 20080239525 | CAMERA MODULE ASSEMBLY - A camera module ( | 2008-10-02 |
| 20080239526 | Light conducting unit, illumination apparatus, and projection type display apparatus - A light conducting unit is disposed between a light source and a region which is to be illuminated. In addition, a light conducting unit includes a polygonal prism made from a first medium with a first coefficient of refraction, a first light conducting unit which directs light to be incident upon a first surface of the polygonal prism, and a second light conducting unit upon which light emitted from a second surface of the polygonal prism is incident, wherein the polygonal prism includes a reflective device which reflects light which is incident into the polygonal prism from the first surface towards the second surface, and a second medium with a second coefficient of refraction which is less than the first coefficient of refraction is provided at the first surface and the second surface. | 2008-10-02 |
| 20080239527 | Driving support method and driving support apparatus - A driving support method and apparatus for displaying, on a medial side of a pillar of the vehicle, an image of an area which is hidden as a blind spot in a rear-view mirror mounted on or in a vehicle, when looking in the mirror from the driver's position and which is created by the pillar. The apparatus detects a head position of a driver, detects the angle of the rear-view mirror, calculates the area which is hidden as the blind spot on the basis of the detected driver's head position and the detected angle of the rear-view mirror, and projects an image of the area corresponding to the blind spot onto the pillar, the projected image being formed from image data which is obtained from a blind spot camera mounted on the vehicle. | 2008-10-02 |
| 20080239528 | DEFORMABLE MIRROR APPARATUS - It is made possible to provide a deformable mirror apparatus which is deformable to a complicated shape (high-order shape). A deformable mirror apparatus includes: a substrate; a plurality of electrodes provided on the substrate; a spacer fixed above the substrate, having a first opening passing through from a first face of the spacer facing to the substrate to a second face of the spacer facing opposite from the first face, surrounding the electrodes, and having a step on the second face; a drive part including a membrane part disposed so as to cover the step of the spacer and so as to be opposed to the electrodes, a casing part having an opening at a bottom face of which the membrane part is exposed and supporting the membrane part, and a reflection film provided on the membrane part; and a voltage generator configured to generate predetermined voltage patterns on the electrodes, respectively. | 2008-10-02 |
| 20080239529 | Combined roof and front mirror description - The invention concerns an external mirror arrangement comprising a front mirror of the Group of the Directive 2005/27/EG for the visual transmission of a first field of view and for the visual transmission of a second field of view contains a safety mirror. In accord with the invention, the front mirror and the safety mirror are integrated in one mirror head. | 2008-10-02 |
| 20080239530 | Mirror pane with a substrate of plastic, a method for its manufacture and an external mirror having such a mirror pane - A mirror pane comprising a substrate of plastic having a front side and a rear side, each having a metal coating, and a surface heating apparatus with at least one resistance heating strip and electric connection contacts, wherein the metal coating placed on the front side of the substrate serves as a reflective mirror surface, and the at least one resistance heating strip possessing the electrical connection contacts is located within recesses in the rear side of the recesses reproducing a negative image of the at least one resistance heating strip and being furnished with connection contacts. | 2008-10-02 |
| 20080239531 | OPTICAL DEVICE COMPRISING A STRUCTURE FOR AVOIDING REFLECTIONS - An optical device includes a deflectable optical functional structure for interacting with electromagnetic radiation incident thereon, and a protective structure which is associated to the optical functional structure and at least partly transparent for the electromagnetic radiation. The optical functional structure is arranged in a manner tilted relative to the protective structure so that, in a non-deflected position of the optical functional structure, a main beam path of the electromagnetic radiation which interacts with the optical functional structure through the protective structure has an angle relative to a sub-beam path of the electromagnetic radiation reflected at the protective structure. | 2008-10-02 |
| 20080239532 | Trailer rearview mirror assembly - A trailer rearview mirror assembly includes a mirror base, a first clipping member and a second clipping member. The mirror base is provided with an elongated support arm. The first clipping member is affixed on the support arm by a first fastener. The second clipping member is coupled to the first clipping member, and provided with a clipping cavity which allows the gripping by a second fastener. Accordingly, the mirror base is therefore handy and stable to affix to the rearview mirror assembly. | 2008-10-02 |
| 20080239533 | METHOD OF MAGNETIC TRANSFER AND MAGNETIC RECORDING MEDIUM - The present invention provides a method of magnetic transfer comprising: an initial magnetization step of performing an initial magnetization by applying a DC magnetic field perpendicular to a disk shaped perpendicular magnetic recording medium which is formed by laminating a soft magnetic layer and a magnetic layer on a substrate; an initial magnetization cleaning step of applying an in-plane magnetic field having an intensity larger than 100 [Oe] and less than an intensity of Hn, to the perpendicular magnetic recording medium after passed through the initial magnetization step in radial direction which directed from a center to an outer of the perpendicular magnetic recording medium. After or in a time of the magnetic transfer, a magnetic cleaning may be performed by applying an in-plane magnetic field having the same intensity as the initial magnetization cleaning step in radial direction instead of the initial magnetization cleaning or in combination. | 2008-10-02 |
| 20080239534 | Encryption methods for patterned media watermarking - Watermarks for patterned magnetic media. The watermarks are used to demonstrate the unauthorized replication of a patterned magnetic media. The watermarks include a dibit, a pattern in an open region, shifting of data, shifting of a sync mark and large length scale perturbations. Also described are methods to determine if a watermark appears on a patterned media. | 2008-10-02 |
| 20080239535 | CERTIFYING WHILE SERVOWRITING MEDIA - Certifying a media while servowriting the media by formatting a full compliment of servo data in storage tracks of the media in a minimum number of passes per storage track while simultaneously performing a 100% media certification of the storage tracks during the minimum number of passes per storage track. | 2008-10-02 |
| 20080239536 | METHOD AND APPARATUS FOR DETECTING DEFECTS OF SERVO DATA IN A DISK DRIVE - According to one embodiment, in a disk drive having a disk medium that has a plurality of sectors, in each of which servo data containing a servo-burst patterns is recorded, a CPU calculates the reliability value of a sector to be evaluated, from a ratio of the sum of the servo-burst values acquired from the sector, to a value obtained by performing low-pass filtering operation on the sum acquired at the time of detection or acquired for the immediately preceding sample. The CPU then determines whether the sector is a defective sector having defective servo-burst patterns, on the basis of the reliability value thus calculated. | 2008-10-02 |
| 20080239537 | DISK RECORDER MANAGEMENT APPARATUS AND DISK RECORDER MANAGEMENT METHOD - According to one embodiment, a disk recorder management apparatus includes: a connection part to which a disk recorder is connected; an initial connection judging unit judging whether or not the disk recorder is connected to the connection part for the first time; and a recording control unit making the disk recorder record registration information indicating a correspondence between the disk recorder management apparatus and the disk recorder when it is judged by the initial connection judging unit that the disk recorder is connected for the first time. | 2008-10-02 |
| 20080239538 | METHOD OF EXAMINING APERTURE DIAMETER OF DISK SUBSTRATE HAVING CIRCULAR APERTURE IN CENTRAL PORTION THEREOF AND APPARATUS THEREOF - The present invention relates to a method of examining an aperture diameter of a disk substrate having a circular aperture in the central portion thereof, the method including: attempting to pass a standard sphere for the aperture diameter through the aperture; and inspecting the aperture diameter of the disk substrate, based on whether the sphere passes through the aperture or not. Furthermore, the present invention relates to an examination apparatus thereof. | 2008-10-02 |
| 20080239539 | METHOD AND APPARATUS FOR THREE-DIMENSIONAL MEASUREMENTS - An apparatus and method for measuring the physical quantities of a data center during operation and method for servicing large-scale computing systems is disclosed. The apparatus includes a cart that supports a plurality of sensors. The cart is moveable within the data center. The sensors capture temperature or other physical parameters within the room. The sensor readings, along with position and orientation information pertaining to the cart are transmitted to a computer system where the data is analyzed to select the optimum temperature or other system environmental parameters for the data center. | 2008-10-02 |
| 20080239540 | MEDIA SERVOWRITER/CERTIFIER - Certifying a storage media while servowriting the media by formatting a full compliment of servo data in storage tracks of the media in a minimum number of passes per storage track while simultaneously performing a 100% media certification of the storage tracks during the minimum number of passes per storage track. | 2008-10-02 |
| 20080239541 | THERMALLY ASSISTED MAGNETIC HEAD, HEAD GIMBAL ASSEMBLY, AND HARD DISK DRIVE - The thermally assisted magnetic head comprises a medium-opposing surface; a magnetic recording device whose distance from a main magnetic pole to a medium is set longer than a distance from the medium-opposing surface to the medium; a first core for receiving light; and a second core positioned between a first light exit surface of the first core and the medium-opposing surface, having a second light exit surface on the medium side; while a distance between positions where an optical intensity distribution center within the first light exit surface and a center of the main magnetic pole are orthographically projected onto a reference plane including the second light exit surface is greater than a distance between an optical intensity distribution center within the second light exit surface and the position where the center of the leading end of the main magnetic pole is orthographically projected onto the reference plane. | 2008-10-02 |
| 20080239542 | Magnetic recording head and magnetic recording method - A magnetic recording head includes: a main magnetic pole containing a ferromagnetic layer; a main magnetic pole-magnetization fixing portion containing an antiferromagnetic layer in contact with at least one side surface of the main magnetic pole; a heater for heating at least the main magnetic pole so that a magnetic interaction between the main magnetic pole and the main magnetic pole-magnetization fixing portion can be decreased; and a magnetic field generator for generating a magnetic field so as to direct a magnetization of the main magnetic pole in one direction. | 2008-10-02 |
| 20080239543 | METHODS AND APPARATUS FOR GENERATING A HARD DRIVE WRITE SIGNAL - Methods and apparatus for generating a hard drive write signal are here in disclosed. A disclosed method comprises generating a hard drive write signal on an output of a switch based on an edge of the first control signal and reducing the hard drive write signal based on an edge of a second control signal via a second switch. | 2008-10-02 |
| 20080239544 | Intelligent tape drive assembly that diagnoses and repairs its own tape drives - A tape drive assembly ( | 2008-10-02 |
| 20080239545 | System and Method to Avoid Disk Lube Pooling - A system and method to avoid disk lube pooling is presented. A track access monitor tracks the number of times that a program accesses a particular track located on a hard drive. When the track access monitor determines that the number of track accesses to a particular track exceed a track access threshold, the track access monitor invokes a sequence of events to scan adjacent tracks in order to uniformly redistribute lubrication over the hard drive. In one embodiment, the track access monitor incrementally performs the adjacent track scanning during hard drive idle periods, such as when the system waits for a password from a user or when the operating system conserves power and idles the hard drive due to lack of activity. | 2008-10-02 |
| 20080239546 | Disk drive apparatus having shock adaptive filters - According to one embodiment, a disk drive apparatus includes a sensor to detect mechanical shocks to the disk drive apparatus and to provide a shock output signal representative of such mechanical shocks, a first filter coupled to the sensor to filter the shock output signal to pass signals having a first frequency component, a second filter to independently filter the shock output signal to provide signals having a second frequency component, a detector to inhibit write operations of the disk drive apparatus responsive to the shock output signal from the first filter, and a controller coupled to the second filter to compensate for low frequency mechanical disturbances during write operations to a track on the disk drive apparatus responsive to low frequency component. | 2008-10-02 |
