Ricoh Company, Ltd.

Tohru Nishida

Junichi Shinohara

Yoshimi Ohno

Yoshio Serikawa

Kunihiko Araki

Hiroshi Terui

Mikio Kobayashi

A camera having a blurring movement correction mechanism comprising: an optical element disposed in an optical path of a photo-taking optical system so as to correct shift of an image formed on a film surface caused by movement of hands holding a camera body. The camera further comprises: a detection unit for obtaining a blurring movement detection data by converting the blurring movement of the camera body to an electric signal; a calculation circuit for calculating blurring movement correction data for correcting the shift of the image formed on the film surface caused by movement of hands holding the camera body; a blurring movement correction actuator for moving the optical element in a necessary direction for correcting the shift of the image on the film surface on the basis of the blurring movement correction data obtained from the calculation circuit; and a noise removing circuit for removing transition output components included in the blurring movement detection data obtained from the detection unit which components are generated at a time when said blurring movement correction actuator is driven.

Camera having blurring movement correction mechanism

A camera having blurring movement correction mechanism comprising: an optical element arranged to correct shift of an image formed on a film surface caused by movement of hands holding a camera body; an actuator for moving the optical element in a necessary direction for correcting the image shift; a detection unit for obtaining a blurring movement detection data by converting the movement of the camera body to an electric signal; a first memory unit for temporarily registering the detection data output from the detection unit; a calculation unit for calculating blurring movement correction data for correcting the image shift caused by movement of the camera body by actuating the optical element by the actuator; and a second memory unit for temporarily registering data of calculation. The correction data is predictively calculated from the detection data of this time obtained from the detection unit, the detection data of the preceding time registered in the first memory unit and the correction data of the preceding time registered in the second memory unit.

A position control device which comprises a ratch wheel adapted to rotate in interlock with motion of an object to be positioned, a rotation detecting unit adapted to detect an amount of rotation of the ratch wheel, a combination solenoid provided with a pawl and adapted to be driven in a direction of bringing the pawl into engagement with the ratch wheel and in a direction of separating the pawl from the ratch wheel, and a combination solenoid control unit adapted to actuate the aforementioned combination solenoid in such a manner as to bring the pawl into engagement with the ratch wheel to set the object at a prescribed position when the aforementioned rotation detecting unit detects that the amount of the rotation of the ratch wheel has reached a prescribed level.

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Yokohama, Japan

Tohru Nishida