Canon Kabushiki Kaisha

Jiro Kazumi

Shinichi Tsujimoto

Masaaki Ishihara

Kenji Itoh

Kenji Yokoyama

Yoshitaka Watanabe

Toru Nagata

Kenichiro Amano

Sinichi Tsujimoto

The present invention relates to a camera having a light-source determining function for determining the kind of light source. According to the present invention, the light-source determining function of the camera is realized by using the output of a light receiving part of a remote control processing part of the camera.

Camera having light-source determining function

A camera capable of communicating with an information reading and transmitting apparatus comprises a detector for detecting a signal output from the information reading and transmitting apparatus, a memory prestoring therein a plurality of programs for effecting a plurality of camera operations, a selector for selecting a particular program from among the plurality of programs on the basis of the result detected by the detector, and a controller for controlling the camera operations on the basis of the particular program selected by the selector.

Automatic exposure control apparatus

A camera system comprises a camera body and an information supply device. The camera body includes a selection part for selecting by operating an operation member a combination of a plurality of control items preset for photographing, an input part for inputting a supply information from the information supply device, and a correction part for correcting at least one control item of the combination of control items being selected by the selection part on the basis of the supply information. The information supply device includes an information forming part for forming the supply information for correction of at least one control item of the combination of control items selected by the selection part of the camera body.

Camera

A data reading apparatus has a reading device, which is set in a data read state upon operation of an operation switch, provided with a timer for measuring a first time period in which the operation switch is not operated, and for measuring a second time period in which no data input is detected while the operation switch is operated, wherein the data reading state is canceled according to an output from the first or second timer.

Data reading device and control system having data reading device

A data imprinting device for a camera wherein the exposure of imprinting data is changed by the information from the film sensitivity setting means. The device is provided with imprinting exposure control means operating in such a manner that when the picture exposure correction factor setting means is operated in a direction to increase the exposure, the data exposure determined based on the film sensitivity setting means is caused to increase.

Data imprinting device for camera

A camera including a detector for detecting set information in an information supplying apparatus, and a controller for performing a particular camera operation on the basis of the result of the detection by the detection means. The particular camera operation includes at least exposure control and the control of the movement of a recording medium.

A camera having a shutter device including leading and trailing curtains includes a first switch arranged to detect the ready-to-travel state and the travel-completed state of the leading curtain, a second switch arranged to detect the ready-to-travel state and the travel-completed state of the trailing curtain, and a decision circuit arranged to determine that the shutter device is abnormal, either when the ready-to-travel state of the leading curtain is not detected by the first switch or when that of the trailing curtain is not detected by the second switch, before an operation of the shutter device. The decision circuit also determines that the shutter device is abnormal, after completion of control over the travels of the leading and trailing curtains by the shutter device, if the travel-completed state of the leading curtain is not detected by the first switch within a predetermined period of time after the travel-completed state of the trailing curtain is detected by the second switch.

A camera of the kind performing a preliminary flashing action before flash photographing for the purpose of preventing the red-eye phenomenon is arranged to give indications to enable the photographer to know selection of a preliminary flashing mode when this mode is selected and execution of the preliminary flashing action when the preliminary flashing action becomes feasible.

Camera having preliminary flash device for preventing red-eye

A camera capable of communicating with an information reading and transmitting apparatus comprises a detector for detecting a signal output from the information reading and transmitting apparatus. A memory prestoring therein a plurality of programs for effecting a plurality of camera operations, a selector for selecting a particular program from among the plurality of programs on the basis of the result detected by the detector and a controller for controlling the camera operations on the basis of the particular program selected by the selector.

Information reading apparatus, camera capable of exchanging signals with

A data imprinting device of the type in which data are imprinted on the film surface during the time when the film is transported. The device includes a data exposure device positioned on the presser plate which presses the film against the film gate of the camera in fixedly secured relation at a location corresponding to the vicinity of the path of movement of the film and a prohibitor responsive to accidental interruption of the film transportation for prohibiting further imprinting of data until the next frame, which came across the data exposure making device at the time of the accidental interruption, is brought into alignment with the data exposure making means as the film transportaion has been re-started.

Data imprinting device

A camera has detection means for detecting a signal representative of set information from an information supplying apparatus, first control means for performing a particular camera operation on the basis of the result of the detection by the detection means, and second control means for performing a preset initial camera operation when the detection by the detection means has never been effected.

A timer-assisted photographing mode control device for use in a camera of the type which has a timer circuit capable of delivering, at a predetermined time interval, signals relating to starting of a shutter releasing operation. When timer-assisted photographing operation is to be executed, a photographing mode suitable for the timer-assisted exposure is forcibly selected.

Timer-assisted photographing mode control device for camera

In a liquid crystal driving system for driving a plurality of liquid crystal display devices with a single liquid crystal driver, segment signals from the driver are connected in common to the liquid crystal devices. Meanwhile, common signals which are connected to the liquid crystal display devices are in different waveforms from each other.

Liquid crystal driving system

In a data recorder for a camera having a data storing memory and control device for causing data to be recorded frame by frame for every photographed frame in the memory, film presence or absence discriminating device is arranged to inhibit data from being recorded in the data storing memory when the absence of the film is detected from a film detection signal received.

Data recorder for camera

This invention relates to an interval shooting device for producing release signals in a constant period to recycle the release operation with the constant period. When the winding of film does not really complete within a prescribed time required from the termination of the exposure to the completion of film winding, the subsequent shooting control by the interval shooting device is prohibited.

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Yokohama, Japan

Jiro Kazumi