Asahi Kogaku Kogyo Kabushiki Kaisha

Mikio Ogi

Yutaka Ohsawa

Masaaki Haga

Hiroyuki Takahashi

Yutaka Osawa

An exposure-condition setting device for a camera includes an Xv dial for setting an exposure compensation value, having a plurality of exposure compensation value indicia, the exposure compensation value indicia representing exposure compensation values; and an AEB dial provided coaxial to the Xv dial and relatively rotatable thereto, for setting an automatic exposure bracketing mode having at least one pair of range marks in the circumferential direction thereof, the pair of range marks representing an exposure compensation range in the automatic exposure bracketing mode when the automatic exposure bracketing mode is set by the AEB dial. An interval of the pair of range marks in the circumferential direction is determined so that the pair of range marks registers with a pair of exposure compensation value indicia on the Xv dial so as to indicate the exposure compensation range for the automatic exposure mode.

Exposure-condition setting device for camera

A camera having a data imprinting function, includes a data imprinting device for imprinting data on film, the data imprinting device including a light emitter which emits light to the film from the film base surf ace side of the film in accordance with character information; a film-type identifying device for identifying the sensitivity of the film; and a controller for determining a quantity of light emitted by the light emitter in accordance with the sensitivity of the film identified by the film-type identifying device, and for adjusting the quantity of light in accordance with the sensitivity of the film.

Camera having a data imprinting device

A remote control auto-focus camera system includes a camera body; a transmitter provided separately from the camera body, wherein the transmitter transmits a remote control signal; a focusing device, a photometering device and an exposure device, provided in the camera body; a photographing operation member, provided on the camera body, which is adapted to operate both the photometering device and the focusing device upon a first operation thereof and to operate the exposure device upon a second operation thereof; and a controller adapted to operate the photometering device and the exposure device in this order without operating the focusing device upon receipt of the remote control signal transmitted.

Remote control, auto-focus camera system

A method for controlling a preview apparatus which is actuated by a preview switch which can be actuated externally, in an AF single lens reflex camera, wherein when the preview switch is turned ON, the AF operation is carried out before a stop-down operation to move a diaphragm from a full-open position to a set diaphragm position begins.

Control method of preview apparatus in AF single lens reflex camera and

A preview apparatus in a single lens reflex camera is provided in which a mirror drive mechanism, a diaphragm drive mechanism, and a shutter are driven in association with the rotation of a single-revolution cam gear which is driven by a motor. When the release switch is turned ON, the one-turn cam gear is rotated by single-revolution in the forward direction, and when an external preview switch is turned ON, the preview operation is carried out by the reverse rotation of the single-revolution cam gear within a predetermined angle range in which the stop-down operation takes place without causing an upward movement of the mirror.

Preview apparatus in single lens reflex camera

A method for controlling a single lens reflex camera having a preview function is provided in which a mirror drive mechanism, a diaphragm drive mechanism, and a shutter are driven in association with the rotation of a single-revolution cam gear which is driven by a motor. When the release switch is turned ON, the single-revolution cam gear is rotated by a single revolution in the forward direction, and when an external preview switch is turned ON, the preview operation is carried out by the reverse rotation of the single-revolution cam gear within a predetermined angle range in which the stop-down operation takes place without causing an upward movement of the mirror. When the release switch is turned ON during the preview operation, the motor is rotated in the forward direction until the single revolution cam gear is returned to the initial position, so that the photometering operation is carried out at the full-open aperture position.

Growing community of inventors

Saitama, Japan

Mikio Ogi