Canon Kabushiki Kaisha

Akihiko Masuki

Kenta Takai

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.

Lens apparatus and image pickup apparatus

The electronic apparatus includes a base member, a rotatable operation member, a clicking member rotatable together with the rotatable operation member, an exterior member disposed between the base and rotatable operation members, a switching operation member provided with an operation knob and movable between first and second positions, a pressing member and a contact, member both held by the base member, the pressing member being biased toward the clicking member, the contact member being biased toward the switching operation member to contact the switching operation member, and a stopper member movable together with the switching operation member. When the switching operation member is located at the first position, the pressing member contacts the concave and convex portions. When the switching operation member is located at the second position, the pressing member contacts the stopper member and held away from the concave and convex portions.

Electronic apparatus

The image-capturing apparatus includes an image-capturing device configured to perform image capturing through multiple magnification-variable optical systems, which face in mutually different directions, to acquire multiple images to be continuously joined together, a controller configured to control magnification-varying operations of the respective magnification-variable optical systems to set field angles thereof, a main body holding the multiple magnification-variable optical systems, and a protrusion detector configured to detect a protruding member. The controller is configured to perform, depending on a detection result of the protrusion detector, a field angle setting process for setting the field angles of the respective magnification-variable optical systems such that the detected protruding member is not included in all the field angles of the magnification-variable optical systems.

Image-capturing apparatus and image-capturing control method

The electronic apparatus includes a base member, a rotatable operation member, a clicking member rotatable together with the rotatable operation member, an exterior member disposed between the base and rotatable operation members, a switching operation member provided with an operation knob and movable between first and second positions, a pressing member and a contact member both held by the base member, the pressing member being biased toward the clicking member, the contact member being biased toward the switching operation member to contact the switching operation member, and a stopper member movable together with the switching operation member. When the switching operation member is located at the first position, the pressing member contacts the concave and convex portions. When the switching operation member is located at the second position, the pressing member contacts the stopper member and held away from the concave and convex portions.

An optical device whose impact resistance against an impact improved without increasing the size thereof. A first-group lens barrel holds has radially protruding follower pins formed thereon. A cam ring is disposed outside the first-group lens barrel, and has cam grooves formed therein for engagement with the follower pins. A diaphragm unit disposed rearward of the first-group lens barrel and a second-group lens barrel disposed rearward of the diaphragm unit move in the optical axis direction. When the diaphragm unit and the second-group lens barrel move in the optical axis direction, the optical device is switched between a wide angle position in which first protrusions formed on the diaphragm unit are positioned inside the follower pins and a telephoto position in which third protrusions formed on the second-group lens barrel are positioned inside the same.

Optical device having improved impact resistance

An optical device, such as a lens or a light quantity adjusting member, can avoid an increase in its size and also reduce the start-up time without damaging its components. An extracting section, a convex section, and a concave section are formed in a fixing member side by side in an optical axis direction. A flexible board is extracted from the extracting section. The convex section located on the extracting section projects to an inner diameter side from the extracting section. The concave section located on the convex section is recessed to an outer diameter side of the extracting section. While the optical device shifts into an accommodated state, the flexible board contacts a part of the convex section, a first bending portion of the flexible board projects to an inner diameter side thereof, and a second bending portion of the flexible board is accommodated in the concave section.

Optical device provided with zooming mechanism

A lens barrel includes a lead screw that is rotatably driven by a focus motor, a pulse plate that is provided at a root section of the lead screw on the focus motor side and rotates integrally with the lead screw, a photo interrupter holder that holds a photo interrupter configured to detect a signal of the pulse plate, a rack that is screwed to the lead screw and advances or retracts in the direction of the optical axis of an imaging optical system in accordance with the rotation drive of the lead screw, and a fourth group holder that holds a fourth group lens and advances or retracts in the direction of the optical axis by engaging with the rack. When the fourth group holder is retracted toward the focus motor side, the pulse plate and the fourth group holder or the fourth group lens are overlapped with each other as viewed from the direction orthogonal to the optical axis.

Lens barrel and imaging apparatus

An imaging apparatus is provided with a lens barrel that includes a flexible substrate that is electrically connected to a magnetically driven apparatus and drive ring that drives the lens barrel by rotating. The drive rings include through grooves that pass through the drive ring and a flexible substrate passes therethrough from the inside to the outside of the lens barrel and a strobe cam that is provided on the outer circumferential side of the drive ring. In addition, the through groove and the strobe cam are disposed so as to coincide in the rotation direction of the drive ring.

Imaging apparatus

An imaging apparatus has in a first cam groove a first cam surface whose lead is lying with respect to the rotating direction of a drive ring, and a second cam surface whose lead is steep with respect to the rotating direction of the drive ring, and when transition is effected from an accommodated state to a use state, a follower member passes the first cam surface, and when transition is effected from the state where the follower member is engaged with a second cam groove to the accommodated state, the follower member passes the second cam surface.

Provided is an optical apparatus including: two magnets which are constituent components of drive member for moving a lens holder (); three balls (); and two bias members () for applying biases such that hook portions disposed in one and the other ends of each of the two bias members are engaged with a base member () and the lens holder, respectively, and the three balls are held between the base member and the lens holder. Two magnets (A andB), the three balls, and the two bias members are arranged so that a center of gravity within a plane of the base member, a lens, and the two magnets is positioned in a triangle formed by the three balls, and a line segment within a plane formed by the two bias members steps over two sides of the triangle.

Optical apparatus and image pickup apparatus provided with the optical apparatus

A barrier unit which can be easily assembled to a lens holding member in view of the above problems. The direction in which a barrier unit is rotated when the barrier unit is assembled with a lens holding member coincides with the direction in which a barrier blade driving member is rotated when the barrier blade is closed from the open state.

Lens barrel

A lens barrel capable of reducing the radial size thereof while maintaining the degree of freedom in layout of a shutter and a anti-shake mechanism. A barrier drive ring includes first and second rotation-transmitting protrusions axially protruding toward an imaging area and parallel to and substantially opposed to each other. An image pickup element-holding member includes a first and second cam contact section which are brought into contact with the first and second rotation-transmitting protrusion, when the lens barrel is retracted. Rotation transmission to the barrier drive ring is performed in a varying manner first via a contact between the first rotation-transmitting protrusion and first cam contact section, then via contacts between the first and second rotation-transmitting protrusions and the first and second cam contact sections, and finally via a contact between the second rotation-transmitting protrusion and the second cam contact section.

Lens barrel and image pickup apparatus

An optical apparatus having a first member and a second member rotating about an optical axis with respect to the first member. One of the members has a cam portion; the other has a cam follower portion engaged with the cam portion which drives the first and second members relatively in an optical axis direction. The first member has first and second portions protruding toward the second member side separated from each other in the optical axis direction; the second member has third and fourth portions protruding toward the first member side separated from each other in the optical axis direction and abuts on the first and second portions, respectively; and the fourth portions are provided in a circumferential direction of the second member and include protruding portions for transmitting power.

Growing community of inventors

Kawasaki, Japan

Akihiko Masuki