Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Fumio Shinano

Tetsuya Uno

Akio Konishi

Takumi Kuwahara

Kazuaki Matsui

Norihiko Saka

Tetsuya Morita

Kenji Sasaki

Koichiro Hirabayashi

Shinichi Iwasaki

Naoto Yumiki

Hiroyasu Fujinaka

Masahiro Nakano

Yoshihiro Ueno

Keiji Sakamoto

Hiroshi Kurumatani

Atsushi Hasegawa

Masahiro Kuwabara

Eiji Nagasaki

Manabu Kobayashi

Kazuo Shibukawa

Takayuki Kawamura

Takeshi Sakakibara

Hideaki Kawane

Kiyokazu Ishiyama

Junichi Takahashi

Yui Kawami

Yuichiro Kimoto

A lens barrel () comprises a lens mount (), a fifth lens group unit (), a cam frame (), a cam pin (), a cam pin holder (), a main shaft (), and an urging spring (). The cam frameencloses the fifth lens group unit, and has a cam groove. The cam pinmoves in the optical axis direction in a state of being engaged with the cam groove. The cam pin holderis provided to the fifth lens group unitin a state of being capable of relative motion in the optical axis direction, and holds the cam pin. The main shaftallows the fifth lens group unitto move in the optical axis direction. The urging springis provided to the fifth lens group unit, urges the cam pin holdertoward the subject side in the optical axis direction, and contracts when the teleconverteris mounted to the lens mountto retract the fifth lens group unitin the optical axis direction.

Lens barrel and camera equipped with same

A zoom ring drive device () comprises a guide unit (), a guide unit (), a drive gear (), and a DC motor (). The guide unit () slides in the optical axis direction of a lens (L) included in the lens barrel (). The guide unit () is provided to the guide unit () and slides in a direction perpendicular to the optical axis direction. The drive gear () is provided in the guide unit () at a position where the drive gear comes into contact with a ring gear () wound around a zoom ring (), and rotates in a state of being in contact with the ring gear () to rotate the zoom ring (). The DC motor () is provided to the guide unit () and rotationally drives the drive gear ().

Manually operated ring drive device

Lens barrel according to the present exemplary embodiment is provided with lens unit, stationary frame, focus ring, focus grip, and a fixing section. Lens unit has an optical system. Stationary frame supports lens unit to be movable in a direction of optical axis X of the optical system. Focus ring is disposed on an outer circumferential side of lens unit, and is rotated when focus adjustment is manually performed. Focus grip is provided to protrude outwardly from focus ring, and operated for rotating focus ring. The fixing section fixes focus ring to stationary frame when focus adjustment is automatically performed. The fixing section has fixing button which is disposed on focus grip and operated for fixing focus ring to stationary frame.

Lens barrel

A lens barrel includes a first lens frame that holds a first lens; a second lens frame that holds a second lens, and holds the first lens frame movably along an optical axis; and a pair of linear units that drive the movement of the first lens frame along the optical axis. When seen in an optical axis direction, the pair of linear units are disposed along the outer circumference of the first lens frame, at mutually non-opposing positions across the optical axis.

A lens barrel includes a tip member, a lens hood, and a sliding member. The tip member is disposed on a subject side in an optical axis direction, and includes an optical system. The lens hood moves between a storage position and a use position in the optical axis direction. The sliding member is provided on an inner circumferential surface side of the lens hood. When the lens hood moves from the storage position to the use position, the sliding member moves to the subject side in the optical axis direction in a state where the sliding member is in contact with an outer circumferential surface of the tip member. In a state where the lens hood is located at the storage position, an interval of at least a portion of a clearance formed between the inner circumferential surface of the lens hood and the outer circumferential surface of the tip member is narrowed toward the subject side in the optical axis direction.

Lens barrel and camera provided with same

A lens barrel is detachably attached to a camera body, and includes an exterior unit, a rear frame, a tripod mount, and a tripod lock screw. The exterior unit includes an optical system. The rear frame is mounted to the exterior unit so as to be rotatable around an optical axis. An outer peripheral surface of the lens barrel is configured with the exterior unit and the rear frame. The tripod mount is provided on the rear frame to be fixed to a tripod. The tripod lock screw fixes a rotational position around the optical axis of the rear frame to the camera body at a predetermined rotational position, in a state in which the lens barrel is mounted to the camera body.

A lens barrel includes a first frame body, a second frame body, a support frame, and a retracting lens frame. The support frame is supported by the second frame body and moves with respect to the second frame body within a first plane for image blur correction in an imaging enabled state, the first plane being perpendicular to an optical axis. The retracting lens frame moves around a retraction shaft during a transition period between an imaging enabled state and a housed state, the retraction shaft being substantially parallel to the optical axis. The support frame has a protrusion which comes into contact with a groove included in the first frame body and restricts a movable range of the support frame in the first plane and a second plane that is parallel to the first plane.

A lens barrel includes a frame body, a support frame, and a refracting lens frame. The support frame is configured to be supported by the frame body and move within a plane perpendicular to the optical axis with respect to the frame body. The refracting lens frame includes a lens support portion and is configured to retract around a retraction shaft. The frame body includes an opening portion. The opening portion is configured to open outward with respect to the optical axis. The opening portion is configured to house part of the lens support portion during a transition period between an imaging enabled state and a housed state. The support frame includes a light blocking portion. The light blocking portion is provided in front of part of the opening portion in an optical axis direction in order to block light rays.

There is provided a lens barrel capable of suppressing deformation of a rear frame upon application of a radial inward force to the rear frame. The lens barrel is a lens barrel attachable to a camera body. The lens barrel includes a lens mount mechanically or electrically connected to the camera body, a fixed frame fixed to the lens mount, and a rear frame that covers an outer periphery of the fixed frame. The rear frame has a tubular portion and flanges that extend from a front end and a rear end of the tubular portion radially inward, and at least a part of a radial inner end of the flange is brought into contact with the fixed frame.

The lens barrel includes a first frame body, a second frame body, a support frame, and a retracting lens frame. The second frame body is supported by the first frame body. The support frame is supported by the second frame body and move with respect to the second frame body within a plane. The plane being perpendicular to the optical axis. The retracting lens frame is supported by the support frame and move around a retraction shaft during a transition period between an imaging enabled state and a housed state. The retraction shaft is substantially parallel to the optical axis. The second frame body, the support frame, and the retracting lens frame move in the optical axis direction with respect to the first frame body during the transition period. The first frame body restricts the movement of the support frame within the plane during the transition period.

Lens barrel including blur correcting mechanism and rotatable retracting lens

A lens barrel includes a support frame and a retracting lens frame. The support frame includes a main body portion, a first linking portion and a second linking portion. The first region is configured to dispose the second lens in the imaging enabled state. The second region is formed continuously with the first region. The first linking portion links the second region on one side of the main body portion in the optical axis direction. The second linking portion links the second region on the other side of the main body portion in the optical axis direction. The retracting lens frame is disposed between the first linking portion and the second linking portion in a housed state.

A lens barrel includes a first lens, a second lens, a first frame body, a second frame body, and a retracting lens frame. The retracting lens frame is configured to move so that a position of the second optical axis of the second lens changes from a position on the first optical axis of the first lens to a position that is outside the first optical axis, during the transition period between the imaging enabled state and the housed state. A contact portion is formed on the inner peripheral part of the first frame body. A protrusion of the retracting lens frame is configured to engage with and guided by the contact portion during movement of the retracting lens frame. The thickness of a region constituting the side wall of the contact portion is increased over the thickness of the other region toward the inside of the cylindrical part.

A lens barrel of the disclosure includes: a first frame which has a lens and an adhesive reservoir which is provided at a position projecting from the lens in a radial direction of the lens with an indentation formed between the lens and the adhesive reservoir, the first frame holding the lens by injection of an adhesive into the adhesive reservoir; and a second frame which is movable relative to the first frame in an optical axis direction of the lens, the second frame having a through hole formed at a place corresponding to the adhesive reservoir as viewed in the optical axis direction.

The lens holding structure of the disclosure includes a lens; and a holding frame including a seat surface and holding the lens, wherein an inclination in a yaw direction and an inclination in a pitch direction of the lens in a state where the lens is brought into contact with the seat surface are substantially equal to an inclination in a yaw direction and an inclination in a pitch direction of the lens in a state where the lens is held by the holding frame, and a clearance is formed between the lens and the seat surface.

Lens holding structure and method of manufacturing lens holding structure

The lens barrel comprises a drive frame, a guide frame, and a moving frame. The moving frame includes a moving frame main body, a second cam mechanism portion, and a guide protrusion. The moving frame main body is configured to move between the drive frame and the guide frame. The second cam mechanism portion is configured to be accommodated in the first accommodation portion of the drive frame and engage to the first cam mechanism portion of the drive frame. The guide protrusion is configured to be accommodated in the second accommodation portion of the drive frame and engage to the guide groove of the guide frame.

Growing community of inventors

Osaka, Japan

Fumio Shinano