G03B2205/0015

Multi-Coil Voice Coil Motor Drive Architecture
20230103399 · 2023-04-06 · ·

A camera system may include one or more voice coil motor (VCM) actuators to implement focus, tilt and shift functions. The VCM actuators may include coils segmented into multiple coil segments having individually impedances lower than the impedance of the respective coil as a whole.

The coil segments may be individually driven by respective currents at different points in time to interact with magnet(s) to produce motive forces along the same axis. Based on the winding configuration and driving mode of the coil segments, the motive forces may move a lens group relative to an image sensor in a direction substantially orthogonal to an image plane, tilt the lens group relative to the image sensor, or shift the image sensor relative to the lens group on the image plane.

Lens driving apparatus, camera module, and optical instrument

A lens driving device includes a cover member; a housing disposed in the cover member; a bobbin disposed in the housing; a first coil disposed on the bobbin; a first magnet coupled to the housing; an upper elastic member coupled to the bobbin and the housing; a base disposed below the housing and coupled to the cover member; a substrate disposed between the housing and the base and including a circuit member having a second coil disposed to be opposite to the first magnet; and a plurality of support members connecting the upper elastic member and the substrate. The support members are connected to the upper elastic member at a position where a length in the x direction and a length in the y direction are different on the basis of the edge of the upper elastic member.

Imaging camera driving module and electronic device

An imaging camera driving module includes a lens unit, a driving mechanism, a sensing mechanism and an image surface. At least a part of the driving mechanism is coupled to the lens unit to drive the lens unit to move in a direction parallel to the optical axis. The sensing mechanism includes sensing magnets fixed to the lens unit and sensing elements not facing the driving mechanism. The sensing elements are disposed on an image side of the imaging lens assembly of the lens unit and corresponding to the sensing magnets. The sensing elements are configured to detect a relative position of the sensing magnets. The image surface is disposed on the image side of the imaging lens assembly, and the optical axis passes through the image surface. The sensing mechanism is configured to detect a tilt of the optical axis with respect to the central axis.

CONTROL APPARATUS, IMAGE PICKUP APPARATUS, LENS APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM
20230146629 · 2023-05-11 ·

A control apparatus configured to perform image stabilization using a first image stabilization unit and a second image stabilization unit includes a determining unit configured to determine a correction ratio between the first image stabilization unit and the second image stabilization unit. The determining unit determines the correction ratio between the first image stabilization unit and the second image stabilization unit such that a proportion of the second image stabilization unit in the correction ratio increases as a distance to a movable end of the first image stabilization unit decreases.

LENS DRIVING DEVICE AND CAMERA MODULE INCLUDING LENS DRIVING DEVICE

A lens driving device includes a carrier; and an image stabilization unit including a lens holder for a lens barrel, and a support frame having a quadrangular frame structure including four corner regions and supporting the lens holder. The lens holder is disposed in the carrier. The image stabilization unit is configured to move the lens holder in a direction perpendicular to an optical axis direction. The support frame includes a first sub-frame including a connection-type molded portion connecting three corner regions of the quadrangular frame structure, and an island-type molded portion separated from the connection-type molded portion and disposed in a fourth corner region of the quadrangular frame structure, and a second sub-frame made of a material stronger than a material of the first and connecting the four corner regions of the quadrangular frame structure and being combined with the connection-type molded portion and the island-type molded portion.

Lens apparatus and image pickup apparatus
11644638 · 2023-05-09 · ·

A lens apparatus includes a first lens holder held by a first cam follower and movable in an optical axis direction, a second lens holder held by a second cam follower and movable in the optical axis direction, and a biasing member provided between the first lens holder and the second lens holder. The biasing member is disposed at the same phase as that of at least one of the first cam follower and the second cam follower and closer to an optical axis than the at least one when viewed from the optical axis direction, and overlaps the at least one in the optical axis direction.

Camera with bumper for cushioning lateral movement

Various embodiments include a camera having one or more bumper arrangements to cushion lateral movement of one or more camera components. In some embodiments, the bumper arrangement(s) may cushion lateral movement of a moveable platform as the moveable platform approaches a stationary structure. According to some embodiments, the bumper arrangement(s) may include one or more bumper features attached to (and/or defined by) the moveable platform and/or the stationary structure.

Camera module having axial assembling structures and electronic device
11650393 · 2023-05-16 · ·

A camera module includes an imaging lens module, an axial driving device and an image sensor module. The imaging lens module includes at least one optical imaging lens element. The axial driving device is configured to drive the optical imaging lens element to move in a direction parallel to an optical axis. The image sensor module is disposed on an image side of the axial driving device and includes an image sensor and a substrate. The image sensor is configured to convert light passing through the imaging lens module into an image signal. The axial driving device includes a base, and the base has a first axial assembling structure. The substrate has a second axial assembling structure abutted against the first axial assembling structure, so that the imaging lens module is aligned with the image sensor module in a direction along the optical axis.

Lens barrel and imaging apparatus

Enhancement of the functionality of image stabilization is achieved while smooth operation of a movable body is ensured. A lens barrel includes a lens unit including at least one lens, a first magnet for performing image stabilization in at least one of a first direction or a second direction, a second magnet for performing image stabilization in a rolling direction, a first coil that forms a magnetic circuit together with the first magnet, and moves the lens unit in at least one of the first direction or the second direction, a second coil that forms a magnetic circuit together with the second magnet, and rotates the lens unit in the rolling direction, and a mounting body having the first magnet and the second magnet mounted thereon. When the lens unit is moved in at least one of the first direction or the second direction, the first magnet, the second magnet, and the mounting body are integrally operated.

COIL UNIT AND PHOTOGRAPHING OPTICAL DEVICE
20170374247 · 2017-12-28 ·

A coil unit may include coils and a coil holding member. An outer peripheral face of the coil holding member includes two side-face pairs, each of which includes a pair of parallel side faces. Each side face includes a protruded part around which the coil is wound and an abutting face with which one end face of the coil is abutted. Two pieces of the coil wound around protruded parts of two paired side faces is formed of one conducting wire. One side faces includes a coil guide part for wiring a crossover wire which connects the coil wound around the protruded part of one side face with the coil wound around the protruded part of the paired side-face pair, the coil guide part being recessed from the abutting face, and a recessed amount of the coil guide part is not less than an outer diameter of the conducting wire.