Abstract: A position adjusting device for a camera optical unit includes a casing which is fixed within a camera for accommodating the optical unit therein, first and second supports provided between the casing and the optical unit for vertically and laterally pivotal movement of the optical unit with respect to the casing, a one-piece plate spring member having an integral laterally pressing piece for biasing the optical unit laterally and have an integral vertically pressing piece for biasing the optical unit vertically, and a pair of adjusting threads, threadingly engaged with the casing, for regulating vertical and lateral position of the optical unit against biasing forces of the vertically and laterally pressing pieces.

Abstract: A camera, an optical apparatus or an optical unit controller having a device for driving an optical unit, a device for determining a state of movement of the optical unit, and a control unit for changing the direction of movement of the optical unit according to whether the amount of driving necessary for the driving device to move the optical unit to a position at which the determination device determines the state of movement of the optical unit is equal to or smaller than a predetermined amount.

Abstract: A magnification change-over device is arranged to be highly suitable for a camera of the kind having a photo-taking lens and a viewfinder arranged independently of each other. The device includes the photo-taking lens having an image magnification which is variable; the viewfinder which is arranged to have an image magnification thereof also variable; an operating device for varying the image magnification of the viewfinder; a detecting device for detecting the magnifying state of the viewfinder; and a driving apparatus for driving the photo-taking lens according to a detection signal of the detecting device when a shutter release operation is performed. After a magnification setting operation is performed on the viewfinder, the change-over device changes the magnification of the photo-taking lens according to the magnification of the viewfinder when a photographing operation is actually performed.

Abstract: An optical apparatus comprises an association device which operates a viewfinder in association with a movement of an image forming optical system. After the movement of the image forming optical system, the association device severs the association of the viewfinder with respect to a movement of the image forming optical system in a direction different from that of the first-mentioned movement.

Abstract: An image-blur prevention apparatus includes a vibration detection unit for detecting a vibration state, an image-blur correction unit for correcting an image blur, an open-loop controllable driving unit for driving the image-blur correction unit, and a control unit for open-loop controlling the driving unit in accordance with an output from the vibration detection unit.

Abstract: As for a camera, a method for driving an electronic shutter of a camera, comprising the stages of setting an initial focus of a rotating member connected with a focus control lens in a state where the focus control lens is pre-set in a middle position between a maximum zoom position and a minimum zoom position, such that the initial position of a focus control lens is positioned in a middle step between a focus position of the focus control lens with respect to a pre-set farthest subject and a focus position of the focus control lens with respect to closest subject; controlling focus by rotating the rotating member connected to a first driving means from an initial position to a clockwise or counterclockwise direction, in order to move the focus control lens to a position set according to a value calculated by a distance measuring means when a shutter switch is operated; and performing exposure by sector opening/closing means being operated according to an exposure value calculated by a luminescent measuring

Abstract: A zoom lens camera includes a whole unit moving device to move a front lens group and a rear lens group together as a whole in an optical axis direction, and a relative moving means to vary a distance between the front lens group and the rear lens group. The whole unit moving means is driven during a zooming operation, and at least the whole unit moving means or the relative moving means is driven during a focusing operation to focus on a subject to be photographed.

Abstract: A camera with an optical system having an autofocus function and a motion compensation function and which is adapted to quickly perform communication of data relating to the motion compensation function and the autofocus function to a camera body. The camera is provided with a communication device having a body side control device, provided in the camera body, for controlling an autofocus adjustment device and a motion compensation device. The body side control device is adapted to issue a single command to request data regarding the optical system. An optical side control device is provided in the optical system, the optical side control device controls the autofocus adjustment device and the motion compensation device. The optical side control device transmits data relating to the autofocus adjustment device and to the motion compensation device to the body side control device based on the single command received from the body side control device.

Abstract: A magnification change-over device is arranged to be highly suitable for a camera of the kind having a photo-taking lens and a viewfinder arranged independently of each other. The device includes the photo-taking lens having an image magnification which is variable; the viewfinder which is arranged to have an image magnification thereof also variable; an operating device for varying the image magnification of the viewfinder; a detecting device for detecting the magnifying state of the viewfinder; and a driving apparatus for driving the photo-taking lens according to a detection signal of the detecting device when a shutter release operation is performed. After a magnification setting operation is performed on the viewfinder, the change-over device changes the magnification of the photo-taking lens according to the magnification of the viewfinder when a photographing operation is actually performed.

Abstract: A magnification and focus adjustment control device, includes a first lens unit; a second lens unit; and a first and second guiding device for guiding a movement of the second lens unit. While an operation of a magnification change is conducted, a position of the second guiding device relating to the first guiding device is selected to be a lens guiding position where the second lens unit is guided by the first and second guiding devices so that the second lens unit moves along a predetermined locus relating to a movement of the first lens unit. While an operation of a focus adjustment is conducted, the position of the second guiding device relating to the first guiding device is selected to be a guide releasing position where a guidance of the predetermined locus of the second guiding device relating to the first guiding device is released.

Abstract: A lens focusing system for a camera. The camera includes a focusing lens that is movable between a first terminus point and a second terminus point. An amount required to move the focusing lens to obtain an in-focus condition is determined, which is used to drive the focusing lens to position the focusing lens at the in-focus condition. A plurality of drive signals are generated in response to the driving of the focusing lens, which are monitored. A monitored position value is established that is based upon the plurality of drive signals monitored by the monitoring means, and the monitored position value is compared with a predetermined position value corresponding to one of the first terminus point and the second terminus point after the lens has been moved by the amount determined to be required to move the focusing lens to obtain the in-focus condition.

Abstract: A camera includes a film drive motor, that connected through a series of gears, drives a bi-directional moving control element. The moving control element is, in turn, mechanically linked to a shutter striker, shutter striker release mechanism, lens focus mechanism and aperture control mechanism. The film drive motor also drives a film advance gear mechanism and a film rewind gear mechanism. Under the control of an electronic control system, by selectively changing the rotation direction of the film advance motor, and hence the direction of travel of the moving control element, the moving control element is first driven in the forward direction to sequentially move a shutter striker to a cocked position and then to set a preferred picture taking position for the lens focusing mechanism and an aperture control mechanism.