摘要:
A stage apparatus comprising: a stationary support board; a movable stage positioned to face the stationary support board to be movable relative to the stationary support board; at least three support members which are in contact with one surface of the movable stage which faces the stationary support board to be slidable thereon; at least three position adjusting devices provided on the stationary support board and configured to adjust positions of the three support members, respectively, in a direction toward/away from the movable stage; and a biasing device which biases the movable stage in a direction to bring the three support members into contact with the movable stage.
摘要:
An anti-shake apparatus comprises a movable-unit, a fixed-unit, a signal-processor, and a controller. The movable-unit has an imaging-device and is movable in first-and second-directions, supported by the fixed-unit. The fixed-unit has a horizontal-hall-element for detecting a first-location, and a vertical-hall-element for detecting a second-location. The signal-processor outputs a first-signal specifying the first-location, from output signals of the horizontal-hall-element, to a first A/D-converter of the controller, and outputs a second-signal specifying the second-location, from output signals of the vertical-hall-element, to a second A/D-converter of the controller. The controller calculates the first-location in an A/D-converting-operation for the first-signal, and the second-location in an A/D-converting-operation for the second-signal. An optimized-horizontal-current-value is calculated in an initial-adjustment-operation for adjusting a detecting-resolution in the A/D-converting-operation for the first-signal, by changing the current-value flowing through the horizontal-hall-element. Current having the optimized-horizontal-current-value, flows through the horizontal-hall-element when detecting the position of the movable unit.
摘要:
A stage apparatus includes a stationary support plate; a Y-direction movable member supported on, and parallel to, the stationary support plate so as to be relatively movable in a Y-direction, the Y-direction movable member including a Y-direction rod portion and a pair of X-direction rod portions, wherein the Y-direction rod portion extends in the Y-direction, and the pair of X-direction rod portions are joined to the Y-direction rod portion to extend in an X-direction both parallel to the stationary support plate and perpendicular to the Y-direction; and an X-direction movable member supported by the pair of X-direction rod portions to be movable in the X-direction relative to the Y-direction movable member. At least one of the pair of X-direction rod portions is rotatable about an axis of the Y-direction rod portion relative to the Y-direction rod portion.
摘要:
An anti-shake apparatus of a photographing-apparatus includes a movable-unit and a fixed-unit. The movable-unit has an imaging device, and is movable in a first-direction perpendicular to an optical axis of the photographing-apparatus, and performs an anti-shake operation by moving in the first-direction. The fixed-unit slidably supports the movable-unit in the first-direction. The movable-unit has first and second hall-elements for detecting a position of the movable-unit in the first-direction as a first location, in order to calculate a detected-position signal. The fixed-unit has first and second magnets for detecting the first location. The detected-position signal is calculated on the basis of an average of outputs of the first and second hall-elements.
摘要:
A drive mechanism for a camera includes a movable member located behind a photographing lens and linearly moved along an optical axis thereof, the movable member supporting an image pickup device; an AF coil secured to the movable member or an immovable member of the camera; a magnetic force generating device which is secured to the other of the movable member and the immovable member, so as to linearly move the movable member in the optical axis direction relative to the immovable member by applying a magnetic field upon the AF coil; and a controller which controls the direction of electric current flowing in the AF coil so that image light transmitted through the photographing lens is converged onto an image pickup surface of the image pickup device. The AF coil is a planar coil which is wound on a plane parallel with the optical axis.
摘要:
A stage apparatus in which a movable stage is guided in first and second directions orthogonal to each other on a stationary member, includes a pair of first elongated holes formed on one of the movable stage and the stationary member and are elongated in the first direction; a pair of link members having two engaging pins at first ends thereof which are engaged in the pair of first elongated holes to be movable therein, respectively, one of second ends of the pair of link members being pivoted at the other of the movable stage and the stationary member, and the other of the second ends of the pair of link members being supported by the other of the movable stage and the stationary member; and a link-member support mechanism for moving the movable stage in the second direction while maintaining a symmetrical shape thereof.
摘要:
An anti-shake apparatus of a photographing apparatus comprises a movable-unit and a fixed-unit. The movable-unit has an imaging-device and is movable in first and second directions. The fixed-unit slidably supports the movable-unit in both the first and second directions. The movable-unit has a horizontal hall-element for detecting a first location in the first direction of the movable-unit, and a vertical hall-element for detecting a second location in the second direction of the movable-unit. The fixed-unit has a magnet unit which is used for detecting the first and second locations, and which has first and second horizontal magnets and first and second vertical magnets. The polarities of the first and second horizontal magnets are arranged in opposite directions, in the third direction. N-pole of the first horizontal magnet and S-pole of the second horizontal magnet are separated in the first direction by a first distance, and face the horizontal hall-element.
摘要:
An anti-shake apparatus includes a movable unit supported by a fixed unit and movable in first and second directions as well as rotated on a movable plane. A first and second driving unit supply driving forces to the movable unit in a first direction. A third and fourth driving unit supply driving forces to the movable unit in a second direction. A first detector detects a direction of a gravitational force acting on the movable unit. A second detector detects a rotational movement around a straight line perpendicular to the movable plane. A control unit controls the third and fourth driving forces to correct the rotational movement when the gravitational direction is parallel to the first direction. The control unit controls the first and second driving forces to correct the rotational movement when the gravitational direction is parallel to the second direction.
摘要:
An anti-shake apparatus of a photographing apparatus, comprises a movable unit, a fixed unit, and an urging member. The movable unit has one of an imaging device and a hand-shake correcting lens, and can be moved in first and second directions. The first direction is perpendicular to an optical axis of a photographing optical system of the photographing apparatus. The second direction is perpendicular to the optical axis and the first direction. The fixed unit slidably supports the movable unit in both the first and second directions. The urging member extends, and then urges and fixes the movable unit when the urging member is in the off state, and shrinks, and then releases fixing the movable unit when the urging member is in the on state.
摘要:
A lock mechanism for a stage apparatus, includes a stationary support board; a movable stage; a leaf spring supported by the stationary support board; a press portion and a pressed portion provided on the leaf spring and the movable stage, respectively, a frictional contacting member being fixed to at least one of opposed surfaces of the press portion and the pressed portion; an electromagnet for resiliently deforming the leaf spring in a lock releasing direction to disengage the frictional contacting member from the one of opposed surfaces of the press portion and the pressed portion; and a permanent magnet, fixed to the stationary support board, which magnetically attracts the leaf spring to hold the frictional contacting member and the one of opposed surfaces of the press portion and the pressed portion in a disengaged state when the leaf spring is resiliently deformed by the electromagnet.