Nidec Copal Corporation

Kazuo Shikama

Nobuaki Watanabe

Kenzo Imai

Longji Bai

Shozo Iwato

Koji Sawanobori

Takuya Machida

Haruhiko Mandai

Yusuke Ehara

Kiyoshi Toma

Hiroyuki Watanabe

Yuuhei Kobayashi

Yohsuke Ikeda

To enable continuous operational control of the blade member with high resolution and good accuracy, even when achieving miniaturization and thickness reduction in a blade driving device, through enabling smooth movement of a movable member in a blade driving device. A blade driving devicecomprises: a base memberthat has an openingA; one or a plurality of blade membersthat operate so as to advance into the openingA or withdraw from the openingA; a driving memberthat moves within a plane that is perpendicular to the optical axis that passes through the openingA, to drive the blade member; and supporting membersthat are provided between the base memberand the driving member, so as to provide sliding support or elastic support of the driving memberin a state that is separated from the base member

Blade driving device for high resolution imaging apparatus

An optical unit has a lens frame that has a slit in a cylinder, and a blade driving device, comprising an insertion portion for insertion into the slit, wherein an opening, provided in the insertion portion, is disposed between lenses in a lens frame, wherein: the blade driving device comprises a frame that has a recessed lens frame storing portion with the insertion portion protruding; a cylinder of the lens frame comprises a pair of supporting faces that are perpendicular to the optical axis of the lens; and the lens frame storing portion of the frame has contact surfaces that contact each of a pair of supporting faces.

Optical unit

Reduces an increase in temperature of the blade member. Comprises: a blade supporting member, disposed forward of a photodetecting sensor that acts as a thermal source, having an openingthrough which passes light that is to be incident into the photodetecting sensor; a blade member, supported movably on the blade supporting member, for opening and closing the opening; an actuator for driving the blade member open and closed, wherein: wherein the blade supporting member comprises a containing portion, for containing the blade member and the actuator on a front or rear surface that is perpendicular to the optical axis of the opening, and an exposed portion that is arranged in parallel to the containing portion.

Blade drive module, imaging unit provided with blade drive module, and imaging device

An imaging optical apparatus with a thin blade containing member for containing a blade member for limiting an opening, having an insertion portion that has an opening; an actuator for causing a blade member to slide; a containing frame for containing the actuator and the blade containing member, except for the insertion portion, having, on an outer edge, a recessed lens frame retaining portion into which the insertion portion; a lens frame, held in the lens frame retaining portion, having an insertion hole, for insertion of the insertion portion so that the center of the opening will be coaxial with the optical axis; and a clip for holding, in cooperation with the containing frame, a lens frame that is held in the lens frame retaining portion, through joining with the containing frame.

Imaging optical apparatus

To enable adjustment of a lens frame (lens barrel) independently, and also to enable a reduction in thickness along the optical axial direction. A blade driving device having a driving member for moving on a plane; a frame for containing the driving member; a thin blade supporting unit that protrudes to the outside, along the direction of movement of the driving member, from a portion of the thickness of the frame, and that has an opening, around the optical axis, along the direction of thickness of the frame; and a blade member that is supported on the blade supporting unit, and that is moved by the driving member, to advance into the opening; wherein the outer peripheral edge of the frame has a recessed portion at the position at which the blade supporting unit protrudes.

Blade drive device

Blade driving device

Because a thin blade is disposed in a space that has a thickness in the optical axial direction, which contains a coil and a magnet, when the blade is driven the blade tends to become unstable, making smooth operation of the thin blade difficult. A blade driving device has a driving member; a frame that is provided with a driving frame chamber that contains the driving member; a blade supporting unit that has an opening and that structures a blade chamber that is separate from the driving frame chamber; and a blade member that is contained in the blade chamber, and that is moved by the driving member to advance into the opening.

A blade driving device comprising: a driving member; one or more blade members that are caused to undergo sliding motion by the driving member; a blade supporting unit for supporting the blade member slidably; and a frame for containing the driving member and a portion of the blade supporting unit, wherein the blade supporting unit comprises a blade chamber for containing a blade member between opposing thin plate members, along with an insertion portion that has an opening and that protrudes from a frame, wherein the opposing thin plate members are integrated together at least the tip end of the insertion portion.

To enable achievement of a reduction in the thickness in a blade driving device that includes a driving member, and to enable a reduction in size of an installation area in a blade driving device that includes a driving member. The blade driving devicecomprises a base memberthat has an openingA, one or more blade membersthat operate so as to advance into the openingA or withdraw from the openingA, and a driving memberthat is supported on the base memberand that moves within a plane that is perpendicular to an optical axis that passes through the openingA, for driving the blade member, wherein the driving memberis disposed at a position that overlaps the blade member on the periphery of the openingA.

A tilt correction unit includes: an inner frame, inside which an optical unit is held; an outer frame surrounding the inner frame, with a gap formed between the inner frame and the outer frame around an entire perimeter of the inner frame; an elastic part which is disposed between the outer frame and the inner frame and elastically supports the inner frame inside the outer frame; a rotational movement support part that connects a part of an outer peripheral surface of the inner frame to a part of an inner peripheral surface of the outer frame; and a drive unit that comprises a magnet and a coil disposed opposite each other with a gap therebetween, wherein the inner frame is driven by the drive unit and rotates about the rotational support part, in a plane perpendicular to the optical axis of the optical unit.

Tilt-correction unit

An optical image stabilizer includes a base member, a movable member that is disposed at the base member and moves along a plane orthogonal to an optical axis, a movable-member driving portion that is disposed at the base member and the movable member, and moves the movable member in a direction orthogonal to the optical axis, and a regulator that regulates a movement of the movable member along the plane orthogonal to the optical axis. The regulator regulates the movement of the movable member with two movement paths, which are a linear movement path along which the movable member moves in a direction orthogonal to the optical axis and a rotation path along which the movable member rotates around a point on the linear movement path.

Optical image stabilizer and lens driving apparatus

A lens driving device includes a base member, a movable member that is disposed at the base member and moves in a plane that is orthogonal to an optical axis, a first driving portion that moves the movable member in a direction that is orthogonal to the optical axis in accordance with image shake, a lens frame that is mounted to the movable member and moves in a direction of the optical axis, a second driving portion that moves the lens frame in the direction of the optical axis and includes a first magnet that is secured to the movable member and a first coil that is secured to the lens frame, and a Hall element that is disposed so as to oppose the first magnet in the direction of the optical axis and detects a change in a magnetic field of the first magnet.

Growing community of inventors

Tokyo, Japan

Kazuo Shikama