Canon Kabushiki Kaisha

Shuichi Terada

Takumi Uehara

Hiroyuki Wada

Takao Mori

Taro Murakami

Kiyoshi Nitto

Toshihiro Ogawa

Yosuke Fukai

Kaori Miyoshi

Nobuhiro Shibata

Keisuke Adachi

Shigeru Takeshita

Takahiro Oya

Kengo Hosomi

Yoichi Kato

Kota Ono

Shoji Harada

A lens barrel that prevents an oscillation phenomenon caused by vibrations occurring when a lens of an image blur correction mechanism shifts. A first cylinder is engaged in the cam cylinder and caused to move in a direction of an optical axis by rotation of a cam cylinder. A second cylinder supports a lens holding member, which moves in a direction different from a direction of an optical axis so as to correct for an image blur, and is engaged in the cam cylinder and caused to move in the direction of the optical axis by rotation of the cam cylinder. The second cylinder has a first vibration isolation pin that is engaged with the first cylinder movably in the direction of the optical axis.

Lens barrel that prevents oscillation phenomenon of lens barrel, and image pickup apparatus

An image stabilization apparatus includes: a driving control unit that drives an image stabilization unit to optically correct image blur of an object image caused by a shake of an apparatus, the image stabilization unit moving the object image on a screen of an image sensor; and a focus control unit that performs control to drive a focusing lens in coordination with an operation of the image stabilization unit, the focusing lens being used to perform focus adjustment in an imaging optical system.

Image stabilization apparatus, method of controlling the same, and storage medium

An optical apparatus that is capable of improving impact resistance thereof. A holding member holding the optical element is movably attached to a first member so that the optical element is movable between an entering position where the optical element enters into an optical path and a retracted position where the optical element is retracted from the optical path. The first member is movably attached to a second member. A driving member engages with the holding member and drives the holding member. A regulation member regulates a moving amount of the first member with respect to the second member. The regulation member is arranged so that a distance from an engagement position of the holding member and the driving member at the entering position to the regulation member is longer than a distance from the engagement position at the retracted position to the regulation member.

Optical apparatus capable of retracting optical element from optical path

A lens barrel having a holder member that holds an imaging device package and allowing one or more structure members other than the holder member to be disposed around the package. The imaging device package in which an imaging device is housed is held by the holder member having planar portions that are disposed parallel to the package and that are coupled to each other through raised bent portions. The raised bent portions of the holder member are disposed so as to be overlapped with and inside the package as seen from an optical axis direction, thereby obtaining a free space around the package, in which one or more structural members other than the holder member can be disposed.

Imaging device holding unit and lens barrel each having holder member for imaging device package, and image pickup apparatus having holding unit or lens barrel

An optical apparatus includes a catoptric element that causes incoming light traveling from an object in a direction of a first optical axis to be refracted in a direction of a second optical axis, a motor that drives an optical member provided on the second optical axis, and a stereo microphone including a left-channel microphone and a right-channel microphone that are provided on a side of the optical apparatus opposite the motor with respect to the second optical axis when seen from an object side and arranged in a direction substantially parallel to the second optical axis.

Optical apparatus comprising a stereo microphone

The image sensor and the imaging substrate are arranged in a space formed between the connection portion and the plane formed by the holding portion.

Imaging apparatus

An optical apparatus includes a cam barrel configured to hold an optical member, which is movable back and forth along a first optical axis, on an inner periphery of the cam barrel, a bending member configured to bend a light flux from an object from the first optical axis towards a second optical axis, and a guiding member extending in a direction parallel with the second optical axis and configured to support and hold the bending member to be movable back and forth in the direction parallel with the second optical axis, wherein the guiding member is configured to enter into a notch, which is provided to the cam barrel, when the optical member is stored into a space along the first optical axis into which the bending member has retracted.

Optical apparatus

A lens barrel which is capable of increasing the total length of the lens barrel in a shooting state even in a case where the collapsed lens barrel length is short, with a simple construction. A shooting optical system is disposed movably in an optical axis direction. A lens barrel driving member moves the shooting optical system in the optical axis direction while rotating around the optical axis. A lens barrel driving member moving unit moves the lens barrel driving member in the optical axis direction in a transition region during which the lens barrel moves between a shooting state and a non-shooting state while the driving member rotating.

Lens barrel, driving method thereof, and image pickup device

A barrier device in which excessive relative displacements of barrier blades in an optical axis direction are restricted to ensure a normal opening and closing operation of the barrier blades. The barrier device has second, first, and third barrier blades disposed in this order in the optical axis direction. Restriction portions of the first barrier blades have through portions extending from shielding portions in the optical axis direction and extending through elongated holes of the second barrier blades, and have extension portions extending parallel to the shielding portions from image-plane-side ends of the through portions and positioned on the image plane side of the second barrier blades. During the entire stroke of opening and closing of the barrier blades, the extension portions can be engaged with the shielding portions, whereby the second barrier blades are restricted from moving away from the first barrier blades.

Barrier device and image pickup apparatus having the same

A lens barrel that is capable of miniaturizing an image pickup apparatus by decreasing an area that is occupied by transmission mechanisms. A lens group is movable along a first optical axis. A cam barrel moves the lens group. A first transmission mechanism transmits a driving force of a driving source to the cam barrel. A bending optical element is movable along a second optical axis that intersects the first optical axis. An element driver moves the bending optical element between a taking position and an escape position along the second optical axis. A second transmission mechanism transmits a driving force of a driving source to the element driver. The second transmission mechanism is arranged within an arrangement area of the first transmission mechanism when viewing in the direction of the first optical axis.

Lens barrel

A vibration wave driven apparatus includes a vibrator configured to generate vibration, a rotor configured to be in frictional contact with the vibrator and to rotate about an axis of rotation, and a transmitting member configured to rotate about the axis and to transmit rotation of the rotor to an external component. A part of the transmitting member forms a worm portion of a worm gear.

Vibration wave driven apparatus and image pickup apparatus including vibration wave driven apparatus

A lens apparatus includes a first lens holding member configured to hold a lens, and an actuator configured to move the first lens holder in an optical axis direction. The lens apparatus transfers to a retracted state by moving the first lens holding member to a retracted position via the actuator from an image picking-up state. The lens apparatus further includes a stopper configured to move in a direction different from the optical axis direction between a first position at which the stopper restricts a movement of the first lens holding member and a second position off the first position, and a driving member configured to move the stopper from the second position to the first position relative to the first lens holding member that has moved to the retreated position.

Lens apparatus and image pickup apparatus

The lens apparatus includes a first barrel member, a second barrel member, a first rolling bearing and a second rolling bearing. The second barrel member includes a cam for moving a lens unit in an optical axis direction, is disposed inside or outside the first barrel member and rotatable around an optical axis with respect to the first barrel member. The first rolling bearing prevents relative displacements of the first and second barrel members in the optical axis direction and in a radial direction. The first rolling bearing is rotatable between the first and second barrel members. The second rolling bearing prevents the relative displacement of the first and second barrel members in the radial direction. The second rolling bearing is rotatable between the first and second barrel members. The first and second rolling bearing are arranged at positions away from each other in the optical axis direction.

When an external force that is equal to or greater than the urging force of a first ball spring is applied to a first lens holder, a first ball follower is dislocated from a first cam groove, and a first external force receiving groove and a first external force receiving pin are brought into engagement to receive the external force. When the external force that has been applied to the first lens holder is released, the first ball follower is restored to the first cam groove due to the urging force of the first ball spring.

Growing community of inventors

Tokyo, Japan

Shuichi Terada