Nidec Copal Corporation

Other

Longji Bai

Nobuaki Watanabe

Kazuo Shikama

Kenzo Imai

Shozo Iwato

Masatoshi Uemura

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

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.

Disclosed is a lens driving device includes: a lens frame; a support frame that elastically supports the lens frame in the optical-axis direction through plate springs; a base support member that elastically supports the lens frame supported by the support frame, in a direction intersecting the optical axis, through support wires; and a driving unit that drives the lens frame in one or both of the optical-axis direction and the direction intersecting the optical axis. The plate springs include elastic arm sections, respectively, which project outward of a portion at which the support frame is attached; and wire attaching sections which are connected to the elastic arm sections, respectively. A connecting position at which the wire attaching section and the elastic arm section are attached to each other is disposed outward of a fixing position where the leading end portion of a corresponding one of the support wires is fixed to the wire attaching section.

Lens driving device

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.

The lens driver having a lens frame; a movable member supports the lens frame so as to be able to move in the direction of the optical axis; a base member supporting the movable member through contact so as to enable movement in the directions perpendicular to the optical axis; elastic members with one end connected to the movable member and the other end connected to the base member, for pressing the movable member against the base member side elastically; a first driving portion for driving the lens frame in the direction of the optical axis; and second driving portions for driving the lens frame in directions that are perpendicular to the optical axis, wherein: power is supplied to the first driving portion, which is provided on the movable member side, through the elastic members from an interconnecting circuit that is provided on the base member.

Device for driving a lens frame

A camera blade drive device includes a base platethat has an aperture 10forming an optical path, a blade memberthat is supported by the base plateand opens or closes the aperture 10, and a driving ringprovided to rotate relative to the base plate. The camera blade drive is configured to operate the blade memberthat is linked to the rotating driving ring. A permanent magnetis provided on the driving ringand a coilrotates the driving ringby magnetic force generated when the coilis conducting. A magnetic memberholds the driving ringin a predetermined position by magnetic attraction with the permanent magnetwhen the coilis non-conducting.

Camera blade drive device

A base plate is provided with four guide pins and a rotor has four output pins so that each of four blades is provided with a plurality of slots. Individual slots provided to the blades are selectively fitted to the four guide pins and the four output pins so that when the rotor is reciprocated and rotated, the blades are capable of continuously changing the size of an aperture by cooperation of their aperture forming edges while maintaining a regular octagon.

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Tokyo, Japan

Longji Bai