Abstract: An image pickup apparatus comprises at least one of a sixth lens unit and an eighth lens unit being movable in a direction orthogonal to an optical axis, a first shift driver or a second shift driver driving the sixth or eighth lens unit, a first shift position detector or a second shift position detector detecting a position of the sixth or eighth lens unit, a photographing condition controller controlling imaging conditions, a detector detecting at least one of a moving speed and a moving direction of an object, and a shift controller controlling the sixth or eighth lens unit based on a signal from the detector. The photographing condition control unit has a following shot mode in which an exposure and a driving of the sixth or eighth lens unit are intermittently performed with respect to a movement of the object.

Abstract: A lens apparatus includes a shift lens movable in a direction orthogonal to an optical axis of an imaging optical system, an actuator configured to drive the shift lens in a plane orthogonal to the optical axis, a memory storing instructions, and a processor configured to execute the instructions to control the actuator. The actuator includes a first actuator configured to drive the shift lens in a first direction within the plane, and a second actuator configured to drive the shift lens in a second direction within the plane. In driving the shift lens in a third direction different from the first direction and the second direction, the processor controls the actuator so that the first actuator and the second actuator are not simultaneously driven.

Abstract: A driving apparatus includes a shift barrel, a first guide unit including a first rolling member, a second guide unit including a second rolling member, a first movable member movable in a first direction orthogonal to the optical axis direction movable in a second direction orthogonal to the optical axis direction and the first direction, a first driving unit configured to drive the first movable member in the first direction, a third guide unit including a third rolling member, a second movable member guided by the third guide unit so as to move in the second direction relative to the base and biased against the shift barrel via a fourth rolling member, a second driving unit configured to drive the second movable member in the second direction, and a biasing member biased in the optical axis direction. The first and third guide units include different members.

Abstract: A control apparatus for use with a camera system that includes an image pickup apparatus that includes an image sensor, and a lens an apparatus that includes at least one optical element configured to change at least one of a tilt effect that tilts a focal plane relative to an imaging plane of the image sensor and a shift effect that moves an imaging range includes a first control unit configured to move, in response to a first operation instruction based on an operation to an operation unit, the at least one optical element according to the operation, and a second control unit configured to move the at least one optical element to a preset position in response to a second operation instruction different from the first operation instruction.

Abstract: A control apparatus is provided for a camera system that includes an image pickup apparatus including an image sensor and a lens apparatus including an optical system that includes at least one optical member for changing at least one of a tilt effect of tilting a focal plane relative to an imaging plane of the image sensor and a shift effect of moving an imaging range. The control apparatus includes at least one memory that stores a set of instructions, and at least one processor that executes the set of instructions to acquire information on an optical state of the optical system, and correct defocus caused by movement of the at least one optical member using the information on the optical state of the optical system.

Abstract: A control apparatus is provided for a camera system that includes an image pickup apparatus including an image sensor and a lens apparatus including an optical system. The optical system includes at least one optical member configured to tilt a focal plane relative to an imaging plane of the image sensor. The control apparatus includes an acquiring unit configured to acquire information about an instructed object, and a control unit configured to acquire information about a position of the object for constructing the focal plane based on information about the instructed object.

Abstract: A lens barrel includes an electric contact fixed to a mount, a first substrate disposed between a fixed barrel and the mount, a second substrate connected to the first substrate and the electric contact while forming a folded portion, and disposed so as to overlap the first substrate when viewed from an optical axis direction, a plurality of first elastic members held by the fixed barrel and configured to position and hold the first substrate in a direction orthogonal to an optical axis, and a second elastic member held by the fixed barrel and disposed between the fixed barrel and the first substrate. The first substrate is urged toward the fixed barrel in the optical axis direction by a force from the folded portion, and contacts the second elastic member on a surface on a side of the fixed barrel of the first substrate.

Abstract: The optical apparatus includes an optical system forming an optical image on a rectangular image capturing surface having long and short sides, a plastic lens, a holder holding the plastic lens, and a pressing member pressing the plastic lens to the holder. One of the plastic lens and the holder includes first and second protrusions located on mutually opposite sides across an optical axis in a first direction parallel to the short sides. Another of the plastic lens and the holder includes a first hole portion into which the first protrusion is inserted to prevent a displacement thereof in a second direction parallel to the long sides and the first direction and a second hole portion into which the second protrusion is inserted to prevent a displacement thereof in the second direction and to allow a relative displacement thereof in the first direction.

Abstract: An optical apparatus includes an image sensor that includes a focus detecting pixel and an image pickup pixel, a first focus detector configured to provide a focus detection based upon a phase difference between the pair of image signals detected by the focus detecting pixel of the image sensor, a second focus detector configured to provide a focus detection based upon a contrast value based upon an output of the image pickup pixel of the image sensor, and a controller configured to provide autofocus utilizing the first focus detector when a focus detection precision of the first focus detector is equal to or higher than a first value and an image magnification variation amount calculated from a wobbling amount of the image pickup optical system used for the second focus detector is equal to or higher than a second value.

Abstract: The optical apparatus includes an optical system forming an optical image on a rectangular image capturing surface having long and short sides, a plastic lens, a holder holding the plastic lens, and a pressing member pressing the plastic lens to the holder. One of the plastic lens and the holder includes first and second protrusions located on mutually opposite sides across an optical axis in a first direction parallel to the short sides. Another of the plastic lens and the holder includes a first hole portion into which the first protrusion is inserted to prevent a displacement thereof in a second direction parallel to the long sides and the first direction and a second hole portion into which the second protrusion is inserted to prevent a displacement thereof in the second direction and to allow a relative displacement thereof in the first direction.

Abstract: An optical apparatus is configured to execute a manual focus mode in which focusing is performed by an operation of a manual operating unit by moving an image pickup optical system configured to form an optical image of an object. The optical apparatus includes a diaphragm configured to adjust a light quantity, and a controller configured to control a movement of the image pickup optical system in accordance with an operating amount of the manual operating unit so that a unit moving amount that is a moving amount of an in-focus position of the image pickup optical system per unit operation of the manual operating unit corresponds to a product between a diameter of a minimum confusion circle of the image pickup optical system, a diaphragm value of the diaphragm in the manual focus mode, and a coefficient that is a natural number or a reciprocal of the natural number.

Abstract: An optical apparatus includes a first driver configured to drive a focus lens unit in autofocusing, a second driver configured to drive the focus lens unit in the autofocusing, a first detector configured to detect a driving amount of the first driver, a second detector configured to detect a driving amount of the second driver, a memory configured to store a relationship between information of detection results of the first and second detectors, and an object distance as a distance from the optical apparatus to an object, and a controller configured to obtain information of the object distance based upon the relationship stored in the memory and the detection results of the first and second detectors.

Abstract: An optical apparatus is configured to execute a manual focus mode in which focusing is performed by an operation of a manual operating unit by moving an image pickup optical system configured to form an optical image of an object. The optical apparatus includes a diaphragm configured to adjust a light quantity, and a controller configured to control a movement of the image pickup optical system in accordance with an operating amount of the manual operating unit so that a unit moving amount that is a moving amount of an in-focus position of the image pickup optical system per unit operation of the manual operating unit corresponds to a product between a diameter of a minimum confusion circle of the image pickup optical system, a diaphragm value of the diaphragm in the manual focus mode, and a coefficient that is a natural number or a reciprocal of the natural number.

Abstract: An optical apparatus includes a zoom optical system including a focus lens unit, an operation portion configured to manually and mechanically change a focal length of the zoom optical system, and a controller configured to control the focus lens unit so as to move along a track depending on an object distance in an operation of the operation portion. The controller moves the focus lens unit to a second position that is different from a first position that is a position of the focus lens unit in disconnecting a power when a first focal length that is a focal length of the zoom optical system in disconnecting the power is different from a second focal length that is a focal length of the zoom optical system in reconnecting the power.

Abstract: A lens barrel and imaging device advantageous for making unnatural brightness variation in an image, due to a liquid-crystal light control element, less noticeable, while reducing the size of an optical system, are disclosed. A lens barrel comprises an optical system, a rectangular planar liquid-crystal light control element, and an imaging element. An object image captured by the optical system is guided to the imaging element through the control element comprising a liquid crystal layer sealed in between a pair of alignment layers and containing rod-shaped liquid crystal molecules. A sensor unit of the imaging element has a rectangular imaging area. Light rays guided from the optical system to the imaging element diverge away from an optical axis. An orientational direction of the control element is substantially parallel to the shorter sides of the imaging area.

Abstract: A lens barrel and imaging device advantageous for making unnatural brightness variation in an image, due to a liquid-crystal light control element, less noticeable, while reducing the size of an optical system, are disclosed. A lens barrel comprises an optical system, a rectangular planar liquid-crystal light control element, and an imaging element. An object image captured by the optical system is guided to the imaging element through the control element comprising a liquid crystal layer sealed in between a pair of alignment layers and containing rod-shaped liquid crystal molecules. A sensor unit of the imaging element has a rectangular imaging area. Light rays guided from the optical system to the imaging element diverge away from an optical axis. An orientational direction of the control element is substantially parallel to the shorter sides of the imaging area.