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| 20100002278 | BEAM IRRADIATION APPARATUS - A beam irradiation apparatus includes: an optical element which changes a travel direction of a laser beam by being rotated in a predetermined direction; an actuator which rotates the optical element in the direction; a refractive element which is disposed in the actuator and rotates in association with rotation of the optical element; a servo beam source which emits a servo beam to the refractive element; a photodetector which receives the servo beam refracted by the refractive element and outputs a signal according to a position where the servo beam is received; and a power adjustment circuit which adjusts emission power of the servo beam source. The power adjustment circuit adjusts the emission power so that a reception amount of the servo beam in the photodetector becomes constant based on an output signal from the photodetector. | 01-07-2010 |
| 20100014139 | BEAM IRRADIATION APPARATUS - A beam irradiation apparatus includes: an actuator which scans a target region with a laser beam; a photodetector which receives a servo beam and outputs a signal according to a beam reception position; an optical unit which makes the servo beam displaced on the photodetector in association with driving of the actuator; and a position signal generation circuit that generates a signal according to the reception position of the servo beam based on an output signal from the photodetector. The position signal generation circuit has a signal removal circuit that removes a disturbance signal generated when the laser beam is incident on the photodetector, from an output signal of the photodetector. | 01-21-2010 |
| 20100078582 | BEAM IRRADIATION DEVICE AND POSITION SENSING DEVICE - A beam irradiation device includes an actuator that scans a target region with laser light in a two-dimensional direction, and a servo optical system that changes a traveling direction of servo light along with driving of the actuator. The servo optical system includes a splitting element that splits the servo light, a first position sensing device that receives a first beam split by the splitting element and outputs a signal at a light-receiving position in a first direction, and a second position sensing device that receives a second beam split by the splitting element and outputs a signal at a light-receiving position in a second direction different from the first direction. | 04-01-2010 |
| 20100188648 | BEAM IRRADIATION DEVICE AND LASER RADAR SYSTEM - A beam irradiation device includes: a laser light source for emitting laser light; an actuator which scans a targeted area with the laser light; a servo optical system which changes a propagating direction of servo light in response to driving of the actuator; a photodetector which receives the servo light to output a signal depending on a light receiving position of the servo light; an actuator controlling section which controls the actuator based on the signal to be outputted from the photodetector; and a laser controlling section which controls the laser light source based on the signal to be outputted from the photodetector. The laser controlling section controls the laser light source to emit the laser light in a pulse manner at a timing when the light receiving position of the servo light coincides with a predetermined targeted position. | 07-29-2010 |
| 20100225930 | BEAM IRRADIATION DEVICE AND POSITION DETECTING DEVICE - In a beam irradiation device, laser light emitted from a laser light source is entered into a mirror. An actuator pivotally moves the mirror into which laser light is entered, whereby a targeted area is scanned with the laser light. Servo light emitted from a semiconductor laser is entered into a hologram element. The hologram element is pivotally moved with the pivotal movement of the mirror. A diffraction pattern is formed on an exit surface of the hologram element. A photodetector receives servo light transmitted through the hologram element to output a signal depending on a light receiving position of the servo light. The scan width of servo light on the photodetector is increased by a diffraction function of the hologram element. | 09-09-2010 |
| 20110090516 | BEAM IRRADIATION DEVICE - A beam irradiation device includes a photodetector which receives servo light and outputs a detection signal depending on a light receiving position of the servo light, and a signal processing section which obtains the light receiving position based on the detection signal. In the above arrangement, the signal processing section has an A/D conversion circuit which converts the detection signal into a digital signal, and an error signal adjusting circuit which converts an error component signal to be outputted from the photodetector when the photodetector is not irradiated by the servo light, into a signal within a processable range of the A/D conversion circuit, and supplies the converted signal to the A/D conversion circuit. A first digital signal derived from the detection signal is corrected with a second digital signal derived from the error component signal. | 04-21-2011 |
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| 20080257639 | Storage box for electronic apparatus - A box-shaped enclosure of a storage box includes a deadening wall or walls defining a storage space between first and second planes. The storage space is open at the first and second planes. A deadening wall member extends along the first plane. An auxiliary box-shaped enclosure is connected to the box-shaped enclosure so as to close the first plane of the box-shaped enclosure. The auxiliary box-shaped enclosure defines an auxiliary space isolated from the storage space with a deadening wall member. The storage space is connected to the fresh air through the ventilation opening and the auxiliary space. The deadening wall or walls of the box-shaped enclosure and the deadening wall member serve to prevent the leakage of the operating sound. | 10-23-2008 |
| 20090186673 | PORTABLE DEVICE, ACOUSTIC COMPONENT DISPOSITION METHOD AND ACOUSTIC COMPONENT ASSEMBLY - A waterproof protection cover and an acoustic component are each disposed inside a portable device provided with a chassis having one or more holes. The acoustic component emits sound. For the acoustic component, an acoustic component having a maximum acoustic output between 0.25 W or more and 0.8 W or less is used. The waterproof protection cover secures an area of 114 mm | 07-23-2009 |
| 20090303678 | STORAGE UNIT AND INFORMATION PROCESSING APPARATUS AND METHOD OF COOLING - A storage unit includes: a storage section containing an information processing apparatus; an intake section allowing intake of a cooling medium into the information processing apparatus for cooling the information processing apparatus; a discharge section receiving the cooling medium discharged from the information processing apparatus; a cooling medium flow generating section configured to control intake and discharge of the cooling medium; a partition section isolating the intake section and the discharge section from each other; an aperture formed in the partition section; a detector section configured to detect an inflow of the cooling medium, discharged from the discharge section, through the aperture; and a controller section configured to control the cooling medium flow generating section in accordance with a result of the detection of the detector section. | 12-10-2009 |
| 20100294385 | FAN UNIT - A fan unit includes a housing having an air inlet and an air outlet; a first fan and second fan mounted in the air inlet and the air outlet respectively and arranged in tandem so as to generate an air flow; a first valve mounted adjacent to the air inlet for allowing air to flow into the housing and preventing air from flowing out of the housing; and a second valve mounted adjacent to the air outlet for allowing air to flow out of the housing and preventing air from flowing into the housing. | 11-25-2010 |
| 20100296945 | FAN CONTROL APPARATUS AND FAN CONTROL METHOD - A fan controlling apparatus for controlling a plurality of fans which are tandemly arranged in ventilation direction of a chamber to control a temperature of a hot generating object placed in the chamber, the apparatus includes a memory for storing data of the rotational speed each of fans in relation to the temperature of the heat generating object, and a controller for controlling the rotational speed of each of the fans respectively in dependence on the temperature of the heat generating object in reference to the data stored in the memory. | 11-25-2010 |
| 20110079462 | MUFFLING DEVICE - A muffling device has a muffling piece that is placed in an airflow path and muffles sound caused by airflow, and a drive unit that performs one of rotation and movement of the muffling piece. | 04-07-2011 |
| 20110155675 | VENTILATION SYSTEM AND RACK APPARATUS - A ventilation system includes a plurality of fan units. Each of the fan units includes a fan to generate an air stream, and a duct disposed on an upstream of the air stream with respect to the fan and defining a flow channel having a square-shaped section to guide an air into the fan, the flow channel being coaxial with a rotating shaft of the fan. The fan units are arranged in a direction crossing the shaft so that the rotating shafts are disposed in parallel to each other. | 06-30-2011 |
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| 20080225659 | Information Recording Apparatus and Method, and Computer Program - A disc-shaped information recording medium has a first and a second recording layer. A buffer area is arranged adjacent to a recording area of each of the layers for preventing deviation of the recording position onto/from each of the layers. A first part of the information is written along a first track path on the first recording layer, a predetermined amount of first buffer data in a part of the buffer area of the first recording layer is written into the first recording layer, and inter-layer jump is performed from the first recording layer to the second recording layer. A predetermined amount of second buffer data in the buffer area of the second recording layer is written in the second recording layer and write element is controlled to write a second part of the information to be recorded, on the second recording layer by changing the recording direction. | 09-18-2008 |
| 20080267035 | Information Recording Medium - An information recording medium ( | 10-30-2008 |
| 20100149951 | INFORMATION RECORDING AND REPRODUCING DEVICE - An information recording/reproducing device includes a light source separately projecting laser light for recording or reproducing, an optical system leading the projected laser light to a recording medium, a diffracting element separating laser light into main- and beam sub-beams, an evanescent light generating element irradiating evanescent light in relation to the separated sub-beam to a track where no recording pit is formed, a sub-light receiving element for receiving return light in relation to the sub-beam, a moving element for moving the evanescent light generating element in relation to the sub-beam to a direction to change a gap with the recording surface, and a control element; for controlling the moving element so as to make the gap become a predetermined target value in accordance with a gap error signal containing a signal indicative of a light amount of the return light in relation to the received sub-beam. | 06-17-2010 |
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| 20090127570 | Double Wavelength Semiconductor Light Emitting Device and Method of Manufacturing the Same - Provided are a double wavelength semiconductor light emitting device, having an n electrode and p electrode disposed on the same surface side, in which the area of a chip is reduced to increase the number of chips taken from one single wafer, in which light focusing performance of double wavelength optical beams are improved, and in which an active layer of a light emitting element having a longer wavelength can be prevented from deteriorating in a process of manufacturing; and a method of manufacturing the same. | 05-21-2009 |
| 20090230433 | Nitride semiconductor device - A nitride semiconductor device includes an n-type layer made of a group III nitride semiconductor and a layer made of a group III nitride semiconductor containing a p-type impurity laminated and formed in contact with the n-type layer, and Al is contained in a portion of the n-type layer in contact with the layer containing the p-type impurity. | 09-17-2009 |
| 20100019257 | SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING THE SAME - There are provided a nitride semiconductor light emitting device having a structure enabling enhanced external quantum efficiency by effectively taking out light which is apt to repeat total reflection within a semiconductor lamination portion and a substrate and attenuate, and a method for manufacturing the same. A semiconductor lamination portion ( | 01-28-2010 |
| 20100102342 | Semiconductor light-emitting device - A semiconductor light-emitting device capable of increasing an amount of light irradiated to the outside is provided. | 04-29-2010 |
| 20110272665 | Nitride semiconductor device - An inventive nitride semiconductor device includes: a substrate; a first buffer layer provided on the substrate, and having a superlattice structure which includes two types of Group III nitride semiconductor sublayers having different compositions and alternately stacked in pairs; a second buffer layer provided on the first buffer layer in contact with the first buffer layer, and having a superlattice structure which includes two types of Group III nitride semiconductor sublayers having different compositions and alternately stacked in pairs; and a device operation layer of a Group III nitride semiconductor provided on the second buffer layer; wherein an average lattice constant LC | 11-10-2011 |
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| 20090051997 | LASER RADAR AND BEAM IRRADIATION APPARATUS THEREFOR - A laser radar according to an embodiment of the invention includes a beam irradiation head which emits a laser beam and a control circuit which controls the beam irradiation head to perform scan in a two-dimensional direction with the laser beam. In the laser radar, the beam irradiation head includes a laser beam source; a mirror to which the laser beam emitted from the laser beam source is incident; and a driving mechanism which rotates the mirror in first and second directions about a first rotating axis and a second rotating axis perpendicular to the first rotating axis respectively. The control circuit controls the rotation of the mirror in the first direction and the second direction such that a scan region of the laser beam becomes a rectangular shape. | 02-26-2009 |
| 20090103577 | BEAM IRRADIATION APPARATUS - A laser beam and a servo beam are incident on a mirror and a transparent member, respectively, so that an angle direction A | 04-23-2009 |
| 20090201488 | BEAM IRRADIATION DEVICE, LASER RADAR SYSTEM, AND DETECTING DEVICE - A beam irradiation device includes: a first light source for emitting laser light; an actuator for moving a scanning section for receiving the laser light to scan a target area with the laser light; a second light source movable with the scanning section and adapted for emitting diffused light; a light receiving position detecting device for receiving the diffused light to output a signal depending on a position of receiving the diffused light; and a light projecting element, disposed at a position closer to the light receiving position detecting device with respect to an intermediate position between the second light source and the light receiving position detecting device, for projecting an emission position to be defined by the second light source on the light receiving position detecting device via a predetermined projection area. | 08-13-2009 |
| 20100073750 | BEAM IRRADIATION APPARATUS - A light refracting element formed in parallel plate shape is attached to a support shaft of a mirror holder, a semiconductor laser and a PSD are disposed at positions between which the light refracting element is sandwiched. The light refracting element is rotated by rotation of the mirror holder, and whereby a laser beam irradiation position is changed on a light acceptance surface of PSD. The laser beam irradiation position on a light acceptance surface corresponds to the mirror rotation position, so that the mirror rotation position and a laser beam scanning position in a target area can be detected based on an output from the PSD. | 03-25-2010 |
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| 20090002799 | ELECTROCHROMIC MIRROR - An electrochromic mirror includes an electrically conductive reflective film capable of reflecting light that is incident thereto and having electrical conductivity in which plural fine penetration holes are formed, an electrochromic film that is provided at a side of the electrically conductive reflective film at which the light is incident and reflected, an electrically conductive film that is provided at a side of the electrically conductive reflective film that is opposite from the electrochromic film, and an electrolytic solution that contains lithium ions and is enclosed between the electrically conductive film and the electrically conductive reflective film. The plural penetration holes formed in the electrically conductive reflective film penetrate in a thickness direction thereof, and a ratio between a distance between respective centers of the penetration holes and an inner peripheral diameter dimension of the penetration holes is 7 or more. | 01-01-2009 |
| 20090002800 | ELECTROCHROMIC MIRROR - An electrochromic mirror includes an electrochromic film, an electrically conductive reflective film formed at one thickness direction side of the electrochromic film, an electrically conductive film provided at one thickness direction side of the electrochromic film and at a side of the electrically conductive reflective film that is opposite from the electrochromic film, an electrolytic solution containing lithium ions and enclosed between the electrically conductive reflective film and the electrically conductive film, and a reduction reaction compensation unit. In the electrolytic solution, due to applying a voltage such that the electrically conductive film is made positive and electrically conductive reflective film is made negative, the lithium ions move toward the side of the electrochromic film and are provided to a reduction reaction of the electrochromic film. The reduction reaction compensation unit compensates the reduction reaction. | 01-01-2009 |
| 20090002801 | ELECTROCHROMIC MIRROR - An electrochromic mirror includes a transparent electrode film, an electrochromic film formed at one thickness direction side of the transparent electrode film, a light reflective film that reflects light that has transmitted through the transparent electrode film and the electrochromic film, a lithium ion transmissive film provided between the electrochromic film and the light reflective film, an electrically conductive film provided at the one thickness direction side of the transparent electrode film and at a side of the light reflective film opposite from the lithium ion transmissive film, and an electrolytic solution that comprises lithium ions and is enclosed between the light reflective film and the electrically conductive film. The lithium ion transmissive film transmits lithium ions and imposed diffusion of silver from the side of the light reflective film to the side of the electrochromic film. | 01-01-2009 |
| 20090185256 | ELECTROCHROMIC MIRROR - In an electrochromic mirror, an insulating film is disposed between a conductive reflective film and an electrolytic solution and the conductive reflective film and the electrolytic solution are electrically insulated from each other except inside of insulating film side small holes. Accordingly, in a portion where the insulating film side small holes are not formed, the conductive reflective film does not come into contact with the electrolytic solution, as the result, a ferrocene ion is not reduction-reacted. Thereby, a current is very effectively suppressed from steadily flowing between the conductive film and the conductive reflective film due to repetition of a redox reaction of ferrocene, resulting in very effectively suppressing a voltage from dropping due to the current. | 07-23-2009 |
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| 20110142611 | COUNTER-ROTATING AXIAL FLOW FAN - A counter-rotating axial flow fan with improved characteristics and reduced noise compared to the related art can be provided. Defining the number of front blades as N, the number of stationary blades as M, and the number of rear blades as P, and defining the maximum axial chord length of the front blades as Lf, the maximum axial chord length of the rear blades as Lr, the outside diameter of the front blades as Rf, and the outside diameter of the rear blades as Rr, the counter-rotating axial flow fan satisfies the following two relationships: N≧P>M; and Lf/(Rf×π/N)≧1.25 and/or Lr/(Rr×π/P)≧0.83. | 06-16-2011 |
| 20110142612 | COUNTER-ROTATING AXIAL FLOW FAN - A counter-rotating axial flow fan in which the shape of stationary blades of a middle stationary portion is optimized to reduce noise is provided. Defining the maximum axial chord length of front blades as Lf, the maximum axial chord length of rear blades as Lr, and the maximum axial chord length of stationary blades as Lm, a relationship of Lm/(Lf+Lr)<0.14 is satisfied. Defining the maximum dimension between the blade chord for lower surfaces of the stationary blades and the lower surfaces as K | 06-16-2011 |
| 20110142614 | COUNTER-ROTATING AXIAL FLOW FAN - A counter-rotating axial flow fan with reduced noise at the target operating point achieved without modifying a front impeller, a rear impeller, or a middle stationary portion is provided. An annular rib including a projecting surface for generating turbulent flow is formed on an inner wall portion of a casing at a position off from the middle stationary portion to a side of the rear impeller, the projecting surface extending radially inwardly of the inner wall portion and extending continuously in the circumferential direction of the inner wall portion. A fluid striking the projecting surface for generating turbulent flow is partially disturbed to form a turbulent flow before entering an area in which the rear impeller is provided. The turbulent flow suppresses flow separation of a fluid flowing along the surfaces of rear blades of the rear impeller from the surfaces of the rear blades. | 06-16-2011 |
