Patent application number | Description | Published |
20090141612 | HOLOGRAM REPRODUCING APPARATUS AND HOLOGRAM REPRODUCING METHOD - Almost all regions of a liquid crystal element | 06-04-2009 |
20090141613 | HOLOGRAM APPARATUS - A light-shielding member having a pinhole filter is disposed at a boundary between reference light emitted from a light source and reproduction light output from a holographic recording medium. The reproduction light passes through a pinhole formed on the pinhole filter and enters a light-shielded space in which a photodetector member is disposed. The pinhole is disposed at a position of a beam waist BW at which the beam diameter is at a minimum. Therefore, the photodetector member is prevented from detecting light other than the reproduction light. The pinhole filter includes the transparent substrate as a base material, and therefore blocks dust from entering the light-shielded space. | 06-04-2009 |
20090219594 | HOLOGRAM REPRODUCING DEVICE AND HOLOGRAM REPRODUCING METHOD - Disclosed is a hologram reproducing device and a hologram reproducing method capable of reading hologram data at a high speed with low power consumption. When a predetermined voltage is applied to some of the signal electrodes and the scanning electrodes arranged in a matrix, a pixel disposed at an intersection of the signal electrode and the scanning electrode is set as a transmission region, and reproduction light emitted from a hologram recording medium passes through a light control member through the transmission region and is then incident on a light receiving unit. Then, hologram data is reproduced. It is possible to switch the reproduction light passing through the light control member only by changing a combination of voltages applied to the signal electrode and the scanning electrode. Therefore, it is possible to improve the read speed of hologram data. | 09-03-2009 |
20120263985 | CURRENT SENSOR - A current sensor includes a magnetic balance sensor and a switching circuit. The magnetic balance sensor includes a feedback coil which is disposed near a magnetic sensor element varying in characteristics due to application of an induction field caused by measurement current and which produces a canceling magnetic field canceling the induction field. The switching circuit switches between magnetic proportional detection and magnetic balance detection. The magnetic proportional detection is configured to output a voltage difference as a sensor output. The magnetic balance detection is configured to output, as a sensor output, a value corresponding to current flowing through the feedback coil when a balanced state in which the induction field and the canceling magnetic field cancel each other out is reached after the feedback coil is energized by the voltage difference. | 10-18-2012 |
20130099775 | CURRENT SENSOR - A current sensor includes a first support configured to include a cutout portion, a first magnetic detector element group configured to be provided in the first support, a second support configured to include a cutout portion, and a second magnetic detector element group configured to be provided in the second support. The cutout portion includes a supporting surface supporting a current line. In the current sensor, when the current line conducting therethrough a current to be measured is attached, the first support and the second support are displaced in the circumferential direction of the current line and fixed, and the current line is supported by supporting surfaces, in different positions in the axis line direction of the corresponding current line. | 04-25-2013 |
20140097826 | CURRENT SENSOR - A current sensor includes first and second current paths each including a first conductive portion and second and third conductive portions extending in the X direction from both ends of the first conductive portion, and being neighboring and apart in the Y direction; and first and second magnetoelectric conversion elements arranged with the first conductive portion of the first current path interposed therebetween, and having sensitive axes along the Y direction. The second and third conductive portions of each of the first and second current paths are apart in the Z direction. The second conductive portion of the second current path is arranged in the Y direction with respect to the first and second magnetoelectric conversion elements. Perpendicular lines from the center line of the second conductive portion of the second current path to the first and second magnetoelectric conversion elements have the same direction and equivalent lengths. | 04-10-2014 |
20140132248 | CURRENT SENSOR - A current sensor includes a casing including a pair of arms and coupling part, multiple magneto-electric transducers arranged on the circumference of a virtual ellipse whose major axis or minor axis extends between the arms, a support disposed obliquely relative to the major axis or the minor axis of the virtual ellipse within an angle formed by the major axis and the minor axis so as to be close to one of the arms when viewed from the center of a wire disposed and fastened between the arms, and a band wound around a circumferential surface of the wire fastened between the arms, part of the band being caught by the support, the wire being fastened by the band such that the central axis or center of the wire is held close to the support. | 05-15-2014 |
20140247044 | CURRENT SENSOR - A current sensor includes a first magnetic sensor and a second magnetic sensor which are configured to detect an induced magnetic field from target current to be measured flowing through a current line. The first and second magnetic sensors each include a magnetoresistive element that includes a free magnetic layer and a hard bias layer applying a bias magnetic field to the free magnetic layer. The bias magnetic field in the magnetoresistive element of the first magnetic sensor is oriented opposite to the bias magnetic field in the magnetoresistive element of the second magnetic sensor. | 09-04-2014 |