Abstract: An image pickup apparatus including a lens barrel, a hollow shaft, a base, electric wiring, and a protection member. The lens barrel has a lens and an image pickup device embedded therein. The hollow shaft is rotatable about an axis intersecting with an optical axis of the lens. The axis serves as a central axis of the hollow shaft. The base supports the lens barrel in a rotatable manner by using the hollow shaft. The electric wiring extends through the inside of the hollow shaft to electrically transmit an image pickup signal of the image pickup device. The protection member is provided in the hollow shaft so as to prevent the electric wiring from coming into contact with the hollow shaft.

Abstract: A camera system is disclosed which allows different types of lens apparatuses to be used in combination with a single image-taking apparatus without requiring changes of focus control signals on the side of the image-taking apparatus depending on the type of a lens apparatus mounted on the image-taking apparatus. The camera system includes an image-taking apparatus which outputs a focus control signal and a lens apparatus which includes a focus lens and is mounted on the image-taking apparatus. The lens apparatus includes a controller which produces a drive signal according to a type of focus of the lens apparatus based on the focus control signal and controls drive of the focus lens based on the drive signal.

Abstract: A camera system (1) is provided which includes an interchangeable lens (40) including a group of lenses (L1, L2, L3, L4) for imaging an object, and a camera (10) to which the interchangeable lens (40) is to be installed. The camera (10) includes a correction angle information calculating means (20) for calculating correction angle information as to the posture of the camera (10), and a first sending means (29) for sending calculated correction angle information to the interchangeable lens (40). The interchangeable lens (40) includes the lens (L2) which optically corrects angular shift on the basis of the correction angle information sent by the first sending means (29).

Abstract: An image pickup apparatus includes a lens barrel, a hollow shaft, a base, electric wiring, and a protection member. The lens barrel has a lens and an image pickup device embedded therein. The hollow shaft is rotatable about an axis intersecting with an optical axis of the lens. The axis serves as a central axis of the hollow shaft. The base supports the lens barrel in a rotatable manner by using the hollow shaft. The electric wiring extends through the inside of the hollow shaft to electrically transmit an image pickup signal of the image pickup device. The protection member is provided in the hollow shaft so as to prevent the electric wiring from coming into contact with the hollow shaft.

Abstract: An optical system controller for a video camera having a lens barrel in which is arranged a movable optical system and on the outer surface of which is arranged an adjusting movable mechanism for the movable optical system. It permits the user to recognize easily and directly the display indicating the position of the movable optical system or the opening of the aperture in the lens barrel.

Abstract: A camera system (1) is provided which includes an interchangeable lens (40) including a group of lenses (L1, L2, L3, L4) for imaging an object, and a camera (10) to which the interchangeable lens (40) is to be installed. The camera (10) includes a correction angle information calculating means (20) for calculating correction angle information as to the posture of the camera (10), and a first sending means (29) for sending calculated correction angle information to the interchangeable lens (40). The interchangeable lens (40) includes the lens (L2) which optically corrects angular shift on the basis of the correction angle information sent by the first sending means (29).

Abstract: A rear-focus zoom lens device includes a wide-angle direction rotation restricting unit and a telephoto direction rotation restricting unit for separately restricting rotations of a zoom ring in a wide-angle direction and a telephoto direction and for separately canceling the restricting operations at any rotational positions of the zoom ring in the wide-angle direction and the telephoto direction, respectively, when rotating the zoom ring in the wide-angle direction and the telephoto direction, respectively.

Abstract: A camera system is disclosed which allows different types of lens apparatuses to be used in combination with a single image-taking apparatus without requiring changes of focus control signals on the side of the image-taking apparatus depending on the type of a lens apparatus mounted on the image-taking apparatus. The camera system includes an image-taking apparatus which outputs a focus control signal and a lens apparatus which includes a focus lens and is mounted on the image-taking apparatus. The lens apparatus includes a controller which produces a drive signal according to a type of focus of the lens apparatus based on the focus control signal and controls drive of the focus lens based on the drive signal.

Abstract: A rear-focus zoom lens device includes a wide-angle direction rotation restricting unit and a telephoto direction rotation restricting unit for separately restricting rotations of a zoom ring in a wide-angle direction and a telephoto direction and for separately canceling the restricting operations at any rotational positions of the zoom ring in the wide-angle direction and the telephoto direction, respectively, when rotating the zoom ring in the wide-angle direction and the telephoto direction, respectively.

Abstract: An optical system controller for a video camera having a lens barrel in which is arranged a movable optical system and on the outer surface of which is arranged an adjusting movable mechanism for the movable optical system. It permits the user to recognize easily and directly the display indicating the position of the movable optical system or the opening of the aperture in the lens barrel.