Canon Kabushiki Kaisha

Shigeru Ogino

Kazuhiro Noguchi

Takashi Kobayashi

Sadahiko Tsuji

Masamichi Toyama

Hiroyuki Takahara

Masayoshi Sekine

Junichi Murakami

Katsumi Azusawa

Shigeyuki Suda

Hiroyuki Hamano

Hiroyuki Wada

Jun Tokumitsu

Hirokazu Mogi

Nobuhiko Shinoda

Takashi Kawabata

Shuichi Kobayashi

Hideyuki Arai

Kunihiko Yamada

Noritsugu Hirata

Masaki Higashihara

Tatsuzo Ushiro

Youichi Iwasaki

Takehiko Sato

Yuichiro Kato

Tsuneo Takashima

Sawako Ito

Kenji Miyauchi

Kohji Takahashi

Koichi Ohmori

An optical device includes a lens holding member that holds a lens and that is movable in a direction along a plane that is orthogonal to an optical axis of the lens, and an actuator that moves the lens holding member in the direction along the plane. In the optical device, the actuator includes an actuator element, formed of electroactive polymer, and a connecting member that connects the lens holding member to the actuator element.

Optical device having blur correction function

A lens apparatus includes a lens barrel, an image-capturing optical system, and a diaphragm device disposed in an optical path of the image-capturing optical system. The diaphragm device includes a plurality of diaphragm blades and an electroactive polymer actuator configured to move the plurality of diaphragm blades from a diaphragm-open state to a diaphragm-closed state and from a diaphragm-closed state to a diaphragm-open state.

Optical apparatus including diaphragm device

An optical device includes a lens holder that holds a lens and is movable in the optical-axis direction of the lens, and an actuator that moves the lens holder in the optical-axis direction. The actuator includes an actuator element composed of an electroactive polymer, an actuator-element holder that holds the actuator element, a mechanism that applies prestrain to the actuator element, and a connecting member that connects the lens holder and the actuator. Herein, a connecting portion of the connecting member is disposed adjacent to the side surface of the actuator.

Optical device

An image pickup apparatus includes an image pickup element for converting an optical image on a focal plane into an electrical image signal and outputting the electrical image signal. A vibration sensor detects a vibration amount of an image pickup apparatus main body, and an optical axis decentering member is provided for decentering an optical axis to cause the optical image to coincide with a predetermined position on the focal plane of the image pickup element. A driving control circuit controls a decentering amount of the optical axis decentering member on the basis of a detection output from the vibration sensor, and a control circuit controls the driving control circuit so that the decentering member is operated if the image pickup element is outputting the electrical signal.

Image pickup device and apparatus including vibration correction means

An optical apparatus is arranged to automatically control, on the basis of an object distance, a convergence distance of right and left optical systems arranged to cause right and left optical images having a predetermined amount of parallax to enter a photographing optical system, and has a plurality of modes in which a difference between the convergence distance and the object distance varies.

Optical apparatus

A stereoscopic image pickup system for obtaining parallactic images includes a pair of front optical components, the pair of front optical components respectively including a pair of reflecting members capable of rotating around respective predetermined axes and having a reflecting function, and a pair of amount-of-light control members arranged to respectively vary amounts of transmission of light fluxes coming from the pair of reflecting members alternately in a time-series manner, an optical member arranged to superpose respective optical axes of the pair of front optical components on each other, a rear optical component having an optical axis coinciding with the superposed optical axes of the pair of front optical components and having a magnification varying function, and a controller for controlling an amount of parallax of parallactic images by using the pair of reflecting members in accordance with a magnification varying operation of the rear optical component.

Stereoscopic image pickup system

In an image input apparatus, a position detecting part is arranged to detect the positions of a variator lens group and a focusing-and-compensating lens group of a photo-taking optical system, and a CPU is arranged to compute the position coordinates and direction vector of an object for a predetermined pixel of an image pickup device on the basis of focal length data, front principal point position data and rear principal point position data prestored in a ROM according to the values of the positions of the lens groups detected by the position detecting part.

Image input apparatus

An image pick-up apparatus for capturing parallax images for the left eye and right eye which meet a fusion condition. A stereo camera image-captures a subject and displays captured parallax images on a stereoscopic display. An observer looks at the screen of the display. The lines of sight of both eyes of the observer are then detected, and a distance from the view point of the observer to the subject is measured based on the line-of-sight data. Instead of the observer, the apparatus determines whether the subject distance satisfies the fusion condition. The apparatus thus determines an image-fusible range, based on a (known) convergence angle, a (known) base line distance, a (known) size of the display, and the distance of distinct vision of the observer.

Image pick-up apparatus for stereoscope

An image pickup apparatus including image pickup device for photoelectrically converting an object image and generating an image pickup signal, a memory for storing the image pickup signal generated from the image pickup device, a detecting sensor for detecting a variation of the apparatus and a control circuit for storing a still image signal generated from the image pickup device to be stored in the memory in the case that the vibration detected by the detecting sensor is equal to or less than a predetermined value and for inhibiting storing of the still image signal to the memory in the case that the vibration is larger than the predetermined value.

Image pickup apparatus with vibration based camera control

An optical apparatus includes first and second lenses, first and second detection devices, and a control device. The first lens varies magnification, and the second lens, positioned on a focal-plane side of the first lens, corrects variation of an image forming position. The first detection device detects at least one of temperature and humidity. The second detection device detects positions of the first and second lenses. The control device controls movement of the second lens during movement of the first lens by using outputs from both the first and second detection devices.

Optical apparatus for correcting focus detection caused by environmental

There is provided a photographing apparatus, in which image information in a range wider than an ordinary range is converted into an electric signal by an image pickup and stored into an image memory, a blurring is corrected by moving a reading-out area from the image memory in accordance with the blurring, and when the blurring correction is not performed, the image stored in the image memory is reduced to a predetermined size at a reduction ratio according to a zoom ratio by a zoom switch and is generated.

Photographing apparatus having a blurring correcting apparatus

Pickup device apparatus including vibration correction means

An optical element comprises a lens made of a material for shutting off all or most of light in the infrared region, and an optical low-pass filter, wherein the lens and the optical low-pass filter are incorporated with each other.

Optical element, and taking optical system and image pickup apparatus

There is provided a photographing apparatus, in which image information in a range wider than an ordinary range is converted into an electric signal by an image pickup device and stored into an image memory, a blurring is corrected by moving a reading-out area from the image memory in accordance with the blurring, and when the blurring correction is not performed, the image stored in the image memory is reduced to a predetermined size at a reduction ratio according to a zoom ratio by a zoom switch and generated.

Photographing apparatus using image information for blurring correction

A camera having camera movement detection includes a movement detection circuit for detecting the movement of the camera and a blur correction circuit for correcting the blur of a picture image due to the movement of the camera on the basis of the output of the movement detection circuit. A control circuit controls the power supply of the camera on the basis of the output of the movement detection circuit and turns off the power supply of the blur correction circuit in a case where the camera is fixed.

Growing community of inventors

Tokyo, Japan

Shigeru Ogino