Sony Corporation

Yasutaka Takahashi

Satoshi Imai

Takahiro Okabe

Mitsuru Ichikawa

Kyosuke Yoshida

Masashi Nishimoto

Noritoshi Eguchi

Satoru Yoshioka

Fumihiko Fujishiro

A lens barrel includes: a lens holding member that holds a lens; a drive coil attached to an outer peripheral portion of the lens holding member; a magnet attached to face the drive coil; a barrel member in which the lens holding member is disposed; and a cover member attached to the barrel member with the lens on a light incident side of the lens holding member facing to an outside. The cover member is magnetic, and the magnet is directly attached to the cover member at a position acing the drive coil.

Lens barrel, camera module, and imaging apparatus

A lens holding member () is molded by filling a molten synthetic resin from a gate of a mold into a product cavity, and a portion corresponding to the gate of the mold for molding remains thereon as a gate portion (). By mounting a coil () on a rear cylindrical face (), an adhesive filling recess () that opens in a direction parallel to an optical axis of an image pickup optical system () is defined by a center face (), side faces () standing from both sides of the center face (), an outer face (), and an inner peripheral surface of the coil (). The gate portion () is provided on the center face () of the adhesive filling recess (). By filling the adhesive filling recess () with adhesive B, an outer peripheral portion of the lens holding member () and an inner peripheral portion of the coil () are bonded together, and the gate portion () is buried in the adhesive B. These provide a camera module that is advantageous in effectively preventing dust from being generated from the gate portion without necessitating any special treatment process.

Camera module

A camera module includes a rear lens barrel, a front lens barrel assembled to the rear lens barrel, the front lens barrel and the rear lens barrel together forming a housing space, a lens holder that holds an imaging optical system and is housed in the housing space, a guiding mechanism that movably supports the lens holder along the optical axis of the imaging optical system, and a driving unit that moves the lens holder along the optical axis of the imaging optical system, the driving unit including a magnet provided in the lens holder and a coil that faces the magnet. The rear lens barrel has a bottom wall that faces the housing space. The coil includes first and second coils disposed in the rear lens barrel on opposite sides of the optical axis in the housing space.

Growing community of inventors

Chiba, Japan

Yasutaka Takahashi