Abstract: There are provided a shake detection device of an imaging device, a shake correction device, an imaging device, and a shake detection method which are capable of performing high-accurate shake detection and shake correction. A shake detection device subtracts a reference value from a sensor output of a gyro sensor, and extracts a low frequency component and a high frequency component from a sensor output after the reference value subtraction by using an LPF and a BPF. A first determination unit determines whether or not the imaging device is in a fixed-point imaging state based on the LPF output and the BPF output. In a case where it is determined that the imaging device is in the fixed-point imaging state, a reference value shift amount calculation unit calculates a shift amount (reference value shift amount) for the reference value based on the LPF output for a period during which the determination is performed.

Abstract: There are provided a shake detection device of an imaging device, a shake correction device, an imaging device, and a shake detection method which are capable of performing high-accurate shake detection and shake correction. A shake detection device subtracts a reference value from a sensor output of a gyro sensor, and extracts a low frequency component and a high frequency component from a sensor output after the reference value subtraction by using an LPF and a BPF. A first determination unit determines whether or not the imaging device is in a fixed-point imaging state based on the LPF output and the BPF output. In a case where it is determined that the imaging device is in the fixed-point imaging state, a reference value shift amount calculation unit calculates a shift amount (reference value shift amount) for the reference value based on the LPF output for a period during which the determination is performed.

Abstract: An object of the present invention is to provide a shake correction device, an imaging apparatus, and a shake correction method capable of accurately correcting a parallel shake. According to a shake correction device according to an aspect of the present invention, since a rotation radius to be used in correction of a shake is determined based on a calculated rotation radius and whether or not a polarity corresponding to the calculated rotation radius is different from a polarity corresponding to a rotation radius stored in advance and an image blur is corrected based on a correction amount corresponding to the determined rotation radius, it is possible to accurately correct a parallel shake by taking influence on a polarity of correction due to the updating of the rotation radius into consideration. The “rotation radius stored in advance” may be a fixed value or may be updated during a period of the shake correction.

Abstract: An object of the present invention is to provide a lens apparatus, a camera system, and a lens driving method capable of achieving both a driving range and a resolution of a focus lens. A lens group having a large number of stopable positions due to a high driving resolution, a long driving range, and the like may be set as a first focus lens group. In this case, depending on communication restrictions (command bit length) between a camera body and the lens apparatus, the lens apparatus may not be driven at the desired position and resolution. Therefore, in the lens apparatus according to the first aspect of the present invention, a lens having a small number of stopable positions is driven as a first focus lens group through communication, and the second focus lens group is driven without being restricted by a communication command through calculation in the lens apparatus. Thereby, it is possible to achieve both the driving range and the resolution of the focus lens.

Abstract: There are provided an imaging device and an imaging control method that can achieve both subject-following performance during a shake-correcting operation and a reduction in the size of a lens. The object is achieved by an imaging device including a shake detection unit that continuously detects a shake, a correction unit that corrects a shake of a subject image by moving an imaging lens and an imaging element relative to each other in a direction orthogonal to a direction of an optical axis of an incidence ray according to the detected shake, and a control unit that limits a movable range of relative movement to the inside of a rectangle included in a circle, which is the maximum movable range, in a case where imaging is performed at a certain frame rate.

Abstract: A machining system has a machine tool, a numerical controller which moves a machining table of the machine tool according to a machining program, a robot which performs a process to a work on the machining table, and a robot control unit, and the numerical controller is configured to send a current position coordinate of the machining table, a prefetched position coordinate of the machining table, which is calculated by prefetching the machining program and carrying out an acceleration and deceleration interpolation, and time information, which corresponds to the current position coordinate and the prefetched position coordinate, to the robot control unit, and the robot control unit controls the robot so that the distal end portion of the robot follows the movement of the machining table by using the current position coordinate, the prefetched position coordinate, and the time information, which are received from the numerical controller.

Abstract: According to an aspect of the present invention, when driving one optical member at a time, the control part sets a first current equal to or more than a rated current of the driving part and equal to or less than a maximum supply current from the image-capturing device body, or a second current less than the rated current of the driving part, for the one optical member as the current limit value, and controls the driving part so that first drive for driving the optical member for a first time by allowing the first current to serve as the current limit value, and second drive for driving the optical member for a second time by allowing the second current to serve as the current limit value after the first drive being performed, are repeated until drive of the optical member to the drive target is completed.

Abstract: The present invention provides a lens device, a drive method, a recording medium, and an image capturing device. According to an aspect of the present invention, in an one-sided drive mode which allows the lens to move beyond a target position, and then to move in a reverse direction and stop at the target position, the control part controls the lens on the basis of the brake ON/OFF information so that when the lens is temporarily stopped, braking by the brake part is not applied, and only when the lens is stopped at a final target position, braking by the brake part is applied.

Abstract: The present invention provides a lens device, a drive method, a recording medium, and an image capturing device. According to an aspect of the present invention, in an one-sided drive mode which allows the lens to move beyond a target position, and then to move in a reverse direction and stop at the target position, the control part controls the lens on the basis of the brake ON/OFF information so that when the lens is temporarily stopped, braking by the brake part is not applied, and only when the lens is stopped at a final target position, braking by the brake part is applied.

Abstract: According to an aspect of the present invention, when driving one optical member at a time, the control part sets a first current equal to or more than a rated current of the driving part and equal to or less than a maximum supply current from the image-capturing device body, or a second current less than the rated current of the driving part, for the one optical member as the current limit value, and controls the driving part so that first drive for driving the optical member for a first time by allowing the first current to serve as the current limit value, and second drive for driving the optical member for a second time by allowing the second current to serve as the current limit value after the first drive being performed, are repeated until drive of the optical member to the drive target is completed.

Abstract: An imaging device comprising: an imaging device; a blur detection unit; a correction operation unit; a blur correction position calculation unit; a driving unit; a centripetal force addition unit for adding a centripetal force that returns the correction operation unit to a center of the range of movement; and a swing correction mode execution unit for executing image blur correction control of a swing correction mode that suppresses an image blur in a state where the centripetal force addition unit adds a centripetal force of a predetermined level to the correction operation unit in an exposure period in which the imaging element is exposed, and returns the correction operation unit to the center of the range of movement by adding a centripetal force greater than the centripetal force in the exposure period to the correction operation unit in a non-exposure period in which the imaging element is not exposed.

Abstract: A stereo camera is provided with two imaging units. A CPU detects a position of a CCD provided in each of the imaging units. Based on detection results, the CPU checks whether the CCD has reached an edge of a corresponding correctable area for each of the imaging units. The CPU starts to move the CCDs to their respective reference positions when one of the CCDs has reached the edge of the corresponding correctable area. The CPU controls actuations of CCD shifters such that the CCDs reach their respective reference positions simultaneously.

Abstract: At the time of occurrence of camera shake, an angular velocity sensor detects an angular velocity. A rotation angle calculator integrates the angular velocity to calculate angle camera shake. A translational acceleration calculator subtracts an internal acceleration caused during operation of a lens unit from a first translational acceleration detected by an acceleration sensor, so as to calculate a second translational acceleration. A translational velocity calculator integrates the second translational acceleration to calculate a translational velocity. A rotation radius calculator calculates a rotation radius based on the angular velocity and the translational velocity. A shake amount calculator calculates a camera shake amount based on the angle camera shake and the rotation radius. An actuator drives a camera shake correction lens in a direction for canceling the camera shake amount.

Abstract: An imaging device comprising: an imaging device; a blur detection unit; a correction operation unit; a blur correction position calculation unit; a driving unit; a centripetal force addition unit for adding a centripetal force that returns the correction operation unit to a center of the range of movement; and a swing correction mode execution unit for executing image blur correction control of a swing correction mode that suppresses an image blur in a state where the centripetal force addition unit adds a centripetal force of a predetermined level to the correction operation unit in an exposure period in which the imaging element is exposed, and returns the correction operation unit to the center of the range of movement by adding a centripetal force greater than the centripetal force in the exposure period to the correction operation unit in a non-exposure period in which the imaging element is not exposed.

Abstract: At the time of occurrence of camera shake, an angular velocity sensor detects an angular velocity. A rotation angle calculator integrates the angular velocity to calculate angle camera shake. A translational acceleration calculator subtracts an internal acceleration caused during operation of a lens unit from a first translational acceleration detected by an acceleration sensor, so as to calculate a second translational acceleration. A translational velocity calculator integrates the second translational acceleration to calculate a translational velocity. A rotation radius calculator calculates a rotation radius based on the angular velocity and the translational velocity. A shake amount calculator calculates a camera shake amount based on the angle camera shake and the rotation radius. An actuator drives a camera shake correction lens in a direction for canceling the camera shake amount.

Abstract: A stereo camera is provided with two imaging units. A CPU detects a position of a CCD provided in each of the imaging units. Based on detection results, the CPU checks whether the CCD has reached an edge of a corresponding correctable area for each of the imaging units. The CPU starts to move the CCDs to their respective reference positions when one of the CCDs has reached the edge of the corresponding correctable area. The CPU controls actuations of CCD shifters such that the CCDs reach their respective reference positions simultaneously.