Canon Kabushiki Kaisha

Hidekage Sato

Takashi Watanabe

Tadashi Okino

Yasuhiro Tamekuni

Takashi Amikura

Katsumi Azusawa

Ryoichi Suzuki

Takashi Kato

Hideo Yokota

Naoya Kaneda

Akihiro Fujiwara

Hiroyuki Hamano

Junichi Murakami

Masaharu Suzuki

Tatsuo Chigira

Kazuyuki Kondo

Toshimi Iizuka

Hiroshi Akada

Hidefumi Notagashira

Masatoshi Nagano

Tsuyoshi Morofuji

Shinichi Arita

Toru Ohara

Yoshiki Kino

Yoshinari Onda

An optical apparatus capable of performing an image-taking operation in a plurality of image-taking modes includes a selecting part for selecting one image-taking mode from among a plurality of image-taking modes, a variable density element, and a density control part for controlling density of the variable density element, wherein the density control part is capable of controlling the density of the variable density element in a plurality of density control modes and selects one of the plurality of density control modes according to the image-taking mode selected by the selecting part.

Optical apparatus with a voltage controlled variable density element

An image pickup apparatus having optical and electronic zooms. A manually operated zoom element allows for movement of the optical zoom and an electrically operated zoom switch permits electric driving of the optical and electronic zooms. A control unit controls the apparatus so that the magnification is varied while the electronic zoom is kept constant, if the focal length of the optical zoom is varied by the manually operated zoom element in the state that the optical zoom is at its telephoto end and the electronic zoom is being operated

Image pickup apparatus with optical and electronic zoom

The invention discloses an image reading apparatus in which a linear image sensor is provided in the vicinity of an imaging optical system and the main scanning operation is achieved by electronic scanning of the linear image sensor in the longitudinal direction thereof while the sub scanning operation is achieved by the relative movement of the linear image sensor and the image formed by the imaging optical system with plural scanning speed and the image information is outputted by communication between the image process means for processing the image obtained by each main scanning operation and the external equipment, the apparatus is featured by fetching plural shading data while a scanning motor in the sub scanning direction is driven with such plural scanning speeds.

Image reading apparatus

In an image reading apparatus for reading an image recorded on a film, an amount of light being incident on a line sensor comprised in the apparatus and transmitted through the film is adjusted according to the image density of the film such that a relative speed between the film and the line sensor and the luminance of a lamp for irradiating light on the film are controlled.

Image reading apparatus with adjustable exposure

In an image read system which reads an image recorded on a film capable of holding incidental information of the image in an area different from the area where the image is recorded, the incidental information of the image recorded on the film is read, and the read image and the incidental information is processed and outputted as data of a single image.

Image read apparatus, information processing apparatus, and image read system constituted therewith

An image pickup apparatus includes a zoom lens, an electronic-zoom part for varying a magnification by subjecting a video to the processing of electronically varying an angle of view, a detecting circuit for detecting a spatial frequency of the video signal, and a control circuit for controlling a magnification of the electronic-zoom part on the basis of information indicative of the spatial frequency detected by the detecting circuit.

Image pickup apparatus

A film scanner is capable of reading an image formed on a film in accordance with a photographing mode recorded in each frame of the film. In this film scanner, an image formed in each frame of a film held by a film holder is projected onto a linear image sensor by a focusing optical system to read the image with the linear image sensor. A magnetic information detection unit detects magnetic information recorded in each frame of the film, and a system controller identifies a photographing mode of each frame of the film. In accordance with the identified photographing mode, an image read area of each frame is set and a subscanning motor is driven in accordance with this image read area. The subscanning motor is driven in the area outside of the image read area at a faster speed than in the image read area. Therefore, a read time can be shortened as compared to the case wherein all frames are read in the broadest image read area. Trimming works can be omitted.

Film scanner

An image pickup apparatus is disclosed which is provided with a distortional-aberration memorizing element for memorizing distortional-aberration information about an objective lens, a state-of-objective-lens detecting circuit for detecting a state of the objective lens, an image correcting circuit for reading out distortional-aberration information about distortional aberration occurring during photography from the distortional-aberration memorizing element on the basis of information supplied from the state-of-objective-lens detecting circuit, and electrically correcting a distortion of an image due to the objective lens with a predetermined image height in a photographed image selected as a datum.

A lens driving device includes a stator, a rotor magnetized to have a plurality of poles, an arm fixed to the rotor in such a manner as to be rotatable together with the rotor, a moving member for rectilinearly moving a lens in response to a rotation of the arm and a coil for causing the stator to generate a magnetic flux to rotate the rotor.

Driving device and optical apparatus

An optical apparatus or a control device to be used for a light flux deflecting apparatus is arranged to include at least two light flux deflecting portions and a control portion which control the driving actions of the at least two light flux deflecting portions in such a manner that, with the light flux deflecting portions applied as image shake preventing mechanisms to an optical apparatus using a plurality of light fluxes, such as a binocular, the arrangement effectively prevents such inconveniences as the necessity of using a plurality of control portions in controlling each of the light flux deflecting portions and giving a disagreeable feeling to the user due to a discrepancy arising in the amount of deflection between two light fluxes.

Optical apparatus having image shake preventing function

An image pickup apparatus having an electronic zoom and an optical zoom and in which the optical zoom is manually operable by a manual operation member. A detector detects the operation direction and amount of the operation member or the optical zoom and a controller controls the electronic zoom based on the detected operation direction and amount so that a zooming operation on the image is performed by both the optical and electronic zooms.

Growing community of inventors

Kawasaki, Japan

Hidekage Sato