Patent application number | Description | Published |
20100007956 | VIBRATION CORRECTING DEVICE, LENS BARREL, AND OPTICAL DEVICE - An optical device with an imaging device for forming an image of a subject with a lens device includes a lens unit, a movable member making the lens unit movable within a plane orthogonal to the optical axis of the lens unit, an image pickup device imaging the subject image formed by the lens device, a fixed member limiting the movement of the movable member in the optical axis direction, at least three balls rolling between the movable and fixed member, a vibration detecting unit, and a pitch direction drive unit for driving the movable member in the pitch direction within the optical axis orthogonal plane and a yaw direction drive unit for driving the movable member in the yaw direction within the optical axis orthogonal plane. The pitch and yaw direction drive units press the movable member toward the fixed member side by means of magnetic pressing forces caused by magnetic attractive action between drive magnets and yokes. | 01-14-2010 |
20110102613 | VIBRATION CORRECTING DEVICE, LENS BARREL, AND OPTICAL DEVICE - An optical device with an imaging device for forming an image of a subject with a lens device includes a lens unit, a movable member making the lens unit movable within a plane orthogonal to the optical axis of the lens unit, an image pickup device imaging the subject image formed by the lens device, a fixed member limiting the movement of the movable member in the optical axis direction, at least three balls rolling between the movable and fixed member, a vibration detecting unit, and a pitch and yaw direction drive units for driving the movable member in the pitch and yaw directions within the optical axis orthogonal plane, respectively. The pitch and yaw direction drive units press the movable member toward the fixed member side by means of magnetic pressing forces caused by magnetic attractive action between drive magnets and yokes. | 05-05-2011 |
20120206809 | Vibration Correcting Device, Lens Barrel, and Optical Device - An optical device with an imaging device for forming an image of a subject with a lens device, including a lens unit, a movable member making the lens unit movable within a plane orthogonal to the optical axis of the lens unit, an image pickup device imaging the subject image formed by the lens device, a fixed member limiting the movement of the movable member in the optical axis direction, at least three balls rolling between the movable and fixed member, a vibration detecting unit, and a pitch and yaw direction drive units for driving the movable member in the pitch and yaw directions within the optical axis orthogonal plane, respectively. The pitch and yaw direction drive units press the movable member toward the fixed member side by means of magnetic pressing forces caused by magnetic attractive action between drive magnets and yokes. | 08-16-2012 |
20130141789 | VIBRATION CORRECTING DEVICE, LENS BARREL, AND OPTICAL DEVICE - An optical device with an imaging device for forming an image of a subject with a lens device, including a lens unit, a movable member making the lens unit movable within a plane orthogonal to the optical axis of the lens unit, an image pickup device imaging the subject image formed by the lens device, a fixed member limiting the movement of the movable member in the optical axis direction, at least three balls rolling between the movable and fixed member, a vibration detecting unit, and a pitch and yaw direction drive units for driving the movable member in the pitch and yaw directions within the optical axis orthogonal plane, respectively. The pitch and yaw direction drive units press the movable member toward the fixed member side by means of magnetic pressing forces caused by magnetic attractive action between drive magnets and yokes. | 06-06-2013 |
Patent application number | Description | Published |
20100053750 | OBSERVATION APPARATUS - An observation apparatus includes a first member | 03-04-2010 |
20110069386 | BINOCULARS HAVING IMAGE STABILIZING FUNCTION - Binoculars includes left and right image stabilizing lenses, a lens holder configured to move in a direction orthogonal to an optical axis direction, a reference member as a positioning reference in an optical axis direction of the lens holder, a plurality of balls provided at least three each around each of the left and right image stabilizing lenses between the lens holder and the reference member, and configured to roll in accordance with a move of the lens holder, and left and right biasing members inside of the three balls in the left and right ball units and configured to press the lens holder and the reference member against the balls. A coupling portion in the lens holder is so flexible that at least three balls can contact the lens holder by the left and right biasing members. | 03-24-2011 |
20120194904 | BINOCULARS - The binoculars include right and left optical systems including right and left image stabilizing lenses, a lens holding member holding the image stabilizing lenses and being movable in a plane orthogonal to an optical axis direction, first and second guiding members disposed between the lens holding member and a base member, a first guiding mechanism allowing rolling of a first ball in a first direction between the lens holding member and the first guiding member, a second guiding mechanism allowing rolling of a second ball in a second direction between the first and second guiding members. The binoculars further include a first biasing member applying a biasing force toward the optical axis direction to the first and second guiding members, and a second biasing member applying a biasing force toward a direction orthogonal to the optical axis direction to the second guiding member. | 08-02-2012 |
20140002717 | ENCODER, LENS APPARATUS, AND CAMERA CAPABLE OF DETECTING POSITION OF OBJECT | 01-02-2014 |
20140043526 | ENCODER, LENS APPARATUS, AND CAMERA CAPABLE OF DETECTING POSITION OF OBJECT - An encoder includes a base, a cylinder rotatable in a circumferential direction with respect to the base, at least three supporting portions rotatably supporting the cylinder with respect to the base, a connecting portion provided on the cylinder and rotatable within a first range between two supporting portions of the at least three supporting portions, a scale attached to the cylinder, and a detector configured to detect a position of the cylinder with respect to the base by using the scale, and the detector is arranged within a second range different from the first range. | 02-13-2014 |
20140293463 | LINEAR ULTRASONIC MOTOR AND LENS APPARATUS AND IMAGE PICKUP APPARATUS USING THE SAME - A linear ultrasonic motor includes a vibrator having a piezoelectric element, a movable part applying a pressurization force to the vibrator and bringing the vibrator into pressurized contact with a base part, a cover part being fixed to the base part, a rolling part being rollably held between a movable guide part of the movable part and a cover guide part of the cover part, and a body to be driven having a transmission member that is pivotably supported and being able to move only in the movable direction. The transmission member includes a bias part that abuts on a transmission part of the movable part and applies a biasing force of biasing the movable part to the rolling part, to the transmission part. The rolling part is held by a resultant force of the pressurization force or a reaction force of the pressurization force, and the biasing force. | 10-02-2014 |
Patent application number | Description | Published |
20080236381 | POSITIONING CONTROL MECHANISM FOR DOUBLE-ACTING AIR CYLINDER - Between an air source and first and second pressure chambers of a double-acting main cylinder having a length measurement sensor for measuring an acting position of a piston, a first supply solenoid valve and a second supply solenoid valve are connected, respectively, while between the first and second pressure chambers and the atmosphere, a first exhaust solenoid valve and a second exhaust solenoid valve are connected, respectively. When a target acting position of the piston is inputted into a controller, the controller moves the piston to the target acting position so that a position measured by the length measurement sensor agrees with the target position by on-off controlling the solenoid valves. Upon reaching the target position, the piston is stopped and held in the stopped state by confining air within the pressure chambers. | 10-02-2008 |
20080236383 | POSITIONING CONTROL MECHANISM FOR SINGLE-ACTING AIR CYLINDER - An electromagnetic operation-type automatic pressure-adjusting valve outputting an air pressure corresponding to an amount of electric power is connected in an air flow path connecting a pressure chamber of a single-acting main cylinder and an air source. A controller is configured to obtain a relationship between a position of a piston and an air pressure from a relationship between the position of the piston of the main cylinder and a spring force of a return spring, and a relationship between the air pressure supplied to the pressure chamber and an acting force applied to the piston by the air pressure. When a target position of a movement of the piston is inputted to the controller, the controller is operated to move the piston toward the target position and to stop the piston at the position by means of controlling the amount of electric power for the automatic pressure-adjusting valve so that an air pressure corresponding to the target position is outputted. | 10-02-2008 |
20090007769 | POSITIONING CONTROL MECHANISM FOR DOUBLE-ACTING AIR CYLINDER - Between an air source and a first pressure chamber of a double-acting main cylinder having a length measurement sensor for measuring an acting position of a piston, a supply solenoid valve is connected; between the first pressure chamber and the atmosphere, an exhaust solenoid valve is connected; and between a second pressure chamber and the air source, a stop solenoid valve is connected. When a target acting position of the piston is inputted into a controller, the controller moves the piston to the target acting position so that a position measured by the length measurement sensor agrees with the target position by on-off controlling the solenoid valves. Upon reaching the target position, the piston is stopped and held in the stopped state by confining air within the pressure chambers. | 01-08-2009 |
20100258210 | SPOOL-TYPE SELECTOR VALVE - A tapered face whose hole diameter is gradually reduced toward a riding-on direction is formed at a valve-seat end of a supply valve seat or an discharge valve seat where a seal member of a spool slides and rides onto from a side with a low fluid pressure to a side with a high fluid pressure, while the other valve-seat end is kept as a cylindrical surface with a constant hole diameter, by which two tapered faces are formed in a valve hole, and an inner diameter of a portion located between the two tapered faces of the valve hole is formed equal to an inner diameter of a small diameter end of the tapered face, while an inner diameter of a portion located on a hole end side rather than the two tapered faces of the valve hole is formed equal to or larger than the inner diameter of a large diameter end of the tapered face. | 10-14-2010 |