Canon Kabushiki Kaisha

Takanobu Tsunemiya

Masanori Ohtsuka

Yasuhiro Harada

Hideo Taka

Yukio Ogawa

Takashi Ichimiya

Koichi Matsumura

Yoshiaki Honda

Minoru Tanabe

Koji Oshima

Yuuichi Matsuda

Koji Ohshima

A control system comprises multiple memories consuming different current amounts for operation, wherein multiple programs corresponding to different functions are stored in the memories, wherein, in accordance with a function to be processed by an operating circuit, one of the programs is read from one of the memories and is processed, and wherein, from a specific memory for which the current consumed during an operation is equal to or smaller than a predetermined amount, the operating circuit reads and executes one of the programs that performs a function for which an operating time period is equal to or greater than a predetermined value.

Control system, recording device and electronic apparatus

A distance measuring device, or a focus detector, including a plurality of sensors provided in association with a plurality of different areas, and a respective plurality of processing circuits provided in association with the plurality of sensors, to process signals output from the plurality of sensors, where power selectively is supplied only to a sensor(s) and a processing circuit(s) associated with the sensor(s) that correspond to a predetermined area from among the plurality of different areas. The predetermined area may be determined on the basis of the state of a power source (e.g., detected voltage level), the focal length of a shooting optical system, the state of an auxiliary light for irradiating an object, and the like.

Distance measuring device, focus detector, and camera including plural sensors and controller for selectively providing power to sensors and respective processing circuits

A camera or a lens barrel control apparatus of a type in which the locking or unlocking of the cover of a cartridge chamber is controlled by the position of a lens, includes a structure in which, when an abnormality occurs in a driving operation of the lens, or a situation in which the lens does not stop at a predetermined position occurs, the lens is forcibly driven to move to a position for locking or unlocking the cover of the cartridge chamber.

Lens barrel control apparatus

A camera includes a number-of-prints designating device which selectively designates number of prints for each frame of an image recording medium, and a display device which makes it possible to know whether a frame of the image recording medium for which number of prints is to be selectively designated by the number-of-prints designating device is an exposed frame or an unexposed frame.

Camera capable of designating number of prints

An apparatus adapted to a film cartridge in which a film is contained, comprises an operation device which is operable for arbitrarily rewinding the film into the film cartridge before the film is wholly used, an indication device for causing the film cartridge to provide an indication that the film is partly used upon a film rewinding operation of the operation device and a determination device for determining whether a predetermined transporting action of the film is performed. The indication device causes the film cartridge to provide the indication that the film is wholly used, if the determination device determines that the predetermined transporting action of the film is not performed and the film has been rewound.

Film cartridge indication control apparatus

An imprinting apparatus for use in a camera having an imprinting device including a date information imprinting mode for imprinting date information, time information, or the like on a recording medium, and a message information imprinting mode for imprinting message information formed of alphanumeric characters, graphic designs or the like, or a message in the message information in one language being changed into a message in a different language if necessary, and an operating device for performing different operations on the imprinting device using the same operating member with respect to each of the date information imprinting mode and the message information imprinting mode.

Imprinting apparatus for use in a camera

A camera includes a distance detecting device arranged to detect a distance from the camera to an object to be photographed and to output distance information, a flash amount deciding part arranged to decide an amount of flash emission on the basis of the distance information from the distance detecting device, and an aperture value deciding part arranged to decide an aperture value to be used at the time of starting flash emission on the basis of the amount of flash emission.

Camera

A distance measuring apparatus includes a first light projecting device for projecting a light to a projection range, and a first light receiving device arranged along a base length direction thereof, for receiving a reflection light of the light projected from the first light projecting device. The first light receiving device has a first position sensor to detect, in accordance with a position of light reception, a distance to an object, the object being located at least within a middle distance. A second light projecting device, provided independent of the first light projecting device, projects a light to substantially the same projection range as the first light projecting device. A second light receiving device, arranged in a direction different from the base length direction of the first light receiving device, receives a reflection light of the light projected from the second light projecting device. The second light receiving device includes (i) a second position sensor to detect, in accordance with a position of light reception, a distance to an object, the object being located at least within a near distance range, and (ii) a third sensor, disposed at a position corresponding to light reception for an object which is located within a far distance range, to detect a distance to the object in the far distance range.

Distance measuring apparatus, having plural positioning sensors to

A distance measuring device is arranged to emit spot-shaped light toward a subject and receive light reflected from the subject by means of a light receiving sensor having a plurality of light receiving areas, thereby measuring the distance to the subject. In the distance measuring device, among the plurality of light receiving areas, a peripheral light receiving area is selected to be larger than a central light receiving area so that the accuracy of distance measurement is improved.

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Chigasaki, Japan

Takanobu Tsunemiya