Canon Kabushiki Kaisha

Takumi Uehara

Taro Murakami

Hiroki Ito

Atsuto Noda

Harushige Yamamoto

Kazushige Ichino

Kiyoshi Nitto

Shuichi Terada

Takehiro Yoshida

Koichi Washisu

Toru Kobayashi

Takuma Mikawa

Kunihiro Shirai

Yosuke Fukai

Hiroshi Atobe

Toshitaka Aiba

Shuhei Iino

A lens apparatus includes a lens disposed closest to an object, a holder holding the lens, a cover having a first opening to expose the lens when viewed from an optical axis direction of the lens and being positioned with the holder in the optical axis direction, and an exterior member having a second opening to engage with an outer diameter of the cover. A first gap in a diameter direction orthogonal to the optical axis direction formed between the holder and the cover is larger than a second gap in the diameter direction formed between the exterior member and the cover.

Lens apparatus

A stereo lens apparatus includes two optical systems arranged in parallel. Each of the two optical systems includes, in order from an object side to an image side, first to third lens units. An optical path is bent at a position between the first and second lens units and at a position between the second and third lens units in each of the two optical systems so that an inter-optical axis distance between two third lens units is narrower than an inter-optical axis distance between two first lens units. Part of one holding mechanism of two holding mechanisms that are configured to respectively hold the two third lens units is located in a concave portion provided on the other holding mechanism, and part of the other holding mechanism is located in a convex portion provided on the one holding mechanism.

Stereo lens apparatus and image pickup apparatus

A lens apparatus includes a first optical system, a second optical system disposed in parallel with the first optical system, and a lens mount attachable to a camera body. Each of the first optical system and the second optical system has a first optical axis, a second optical axis, and a third optical axis in order from an object side to an image side. A distance between the first optical axis of the first optical system and the first optical axis of the second optical system is longer than a diameter of the lens mount, and a distance between the third optical axis of the first optical system and the third optical axis of the second optical system is shorter than the diameter of the lens mount.

Lens apparatus and image pickup apparatus

A lens apparatus includes a first optical system, and a second optical system disposed in parallel with the first optical system. Each of the first optical system and the second optical system includes, in order from an object side to an image side, a first optical axis, a second optical axis, and a third optical axis. When each of the first optical system and the second optical system rotates around an axis parallel to the third optical axis, a distance between first optical axes of the first optical system and the second optical system changes greater than a distance between third optical axes.

An information processing apparatus includes: a processor; and a memory storing a program which, when executed by the processor, causes the information processing apparatus to obtain an image and correction information on a first optical system and a second optical system, the image including a first area corresponding to a first image inputted via the first optical system and a second area corresponding to a second image inputted via the second optical system having a predetermined parallax with respect to the first optical system; execute correcting processing of correcting, based on the correction information, positions of a pixel included in the first area and a pixel included in the second area in the image, and generate a processed image by executing processing of transforming the corrected first area and the corrected second area.

Information processing apparatus, control method, and non-transitory computer readable medium

An image processing apparatus that performs processing concerning the display of a stereoscopic image so as to improve the convenience of a user in viewing a stereoscopic image. A head mount display displays a stereoscopic image using image data including a plurality of images having different viewpoints. The image data is processed based on metadata attached to the image data. In a case where information indicating that the image data is associated with a file format which cannot cause the head mount display to perform display is included in the metadata, the image data is converted into a file format which can cause the head mount display to perform display.

Image processing apparatus that performs processing concerning display of stereoscopic image, image processing method, and storage medium

An image capturing apparatus () including a plurality of image capturing units (to) that are arranged with reference to a predetermined axis (), each of the plurality of image capturing units includes a first optical element () arranged at an object side, the first optical element having a first axis (OA), a second optical element () arranged at an image side, the second optical element having a second axis (OA), a third optical element () configured to bend a light beam from the first optical element to be introduced to the second optical element, and an image sensor), and in at least one of the plurality of image capturing units, the second optical axis is different from a direction of the predetermined axis.

Image capturing apparatus

A light amount adjusting device includes ND filters rotating around shafts serving as rotation shafts and moving between in-use positions and retracted positions, arranged on a base plate. The respective ND filters include uniform density portions, gradation portions, and transparent portions. If the ND filters are in the retracted positions, the transparent portions of the respective ND filters overlap in an area facing an aperture to cover the entire aperture with the transparent portions. If the ND filters are in the in-use positions, the gradation portions of the respective ND filters overlap in an area facing the aperture to cover the entire aperture with the gradation portions and the uniform density portions. Moreover, a combined density acquired when the gradation portions overlap in just proportion is substantially the same as an optical density of each of the uniform density portions.

Light amount adjusting device, lens barrel, and image capturing apparatus

A lens barrel having a holder member that holds an imaging device package and allowing one or more structure members other than the holder member to be disposed around the package. The imaging device package in which an imaging device is housed is held by the holder member having planar portions that are disposed parallel to the package and that are coupled to each other through raised bent portions. The raised bent portions of the holder member are disposed so as to be overlapped with and inside the package as seen from an optical axis direction, thereby obtaining a free space around the package, in which one or more structural members other than the holder member can be disposed.

Imaging device holding unit and lens barrel each having holder member for imaging device package, and image pickup apparatus having holding unit or lens barrel

A lens barrel includes a cam ring configured to be rotatably driven, a lens holding cylinder provided on an outer circumference of the cam ring and configured to hold a lens, and a barrier cylinder configured to hold a lens barrier, the barrier cylinder includes a cylinder portion, a first protrusion which extends from the cylinder portion toward an image plane side, and a cam engagement portion which is engaged with a cam groove of the cam ring, the lens holding cylinder includes a cylinder portion and a second protrusion which extends from the cylinder portion toward the image plane side, and the second protrusion of the lens holding cylinder is arranged so as to overlap with the cam engagement portion of the barrier cylinder in a radial direction orthogonal to an optical axis direction.

Lens barrel and image pickup apparatus

An image pickup apparatus which is improved in space efficiency for an optical system element, thereby reducing the apparatus size when a lens barrel is retracted. An image pickup apparatus includes a zoom lens barrel that moves between a retracted position and a shooting position in an optical axis direction to thereby change a photographing magnification. A prism bends an optical beam incident from a lens group of the lens barrel. A diaphragm-shutter element is capable of moving along the direction of the second optical axis together with a stepping motor for actuating the diaphragm-shutter element. The stepping motor is disposed, at least when the lens group is in the retracted position, at a position where the stepping motor overlaps the prism in parallel with the second optical axis.

Image pickup apparatus improved in space efficiency for optical system element

An image pickup apparatus including a lens barrel with a bending optical system, in which a reflection optical element is movable between a storage state and a photographing state. When a rotary cylinder that retains a lens group to which light beams from an object are incident is being driven by a drive source to advance and retreat between a storage state and a photographing state, the coupling between a cam mechanism for rotary cylinder operation and a driving force transmission gear train for optical element operation is automatically established and released, whereby the operation for moving the reflection optical element between the storage state and the photographing state can be achieved by a single drive source.

Optical element drive mechanism and image pickup apparatus having the same

A lens barrel that is capable of miniaturizing an image pickup apparatus by decreasing an area that is occupied by transmission mechanisms. A lens group is movable along a first optical axis. A cam barrel moves the lens group. A first transmission mechanism transmits a driving force of a driving source to the cam barrel. A bending optical element is movable along a second optical axis that intersects the first optical axis. An element driver moves the bending optical element between a taking position and an escape position along the second optical axis. A second transmission mechanism transmits a driving force of a driving source to the element driver. The second transmission mechanism is arranged within an arrangement area of the first transmission mechanism when viewing in the direction of the first optical axis.

Growing community of inventors

Kawasaki, Japan

Takumi Uehara