Abstract: An image stabilizer manufacturing method provides an image stabilizer which can steady blurry images produced by camera shake or vibration. One of the magnet and a coil supporting member are fixed to a moving frame. In the state in which an optical axis of a correcting lens is matched with an optical axis of a lens system, after first and second Hall elements were properly positioned at the position in which magnetic force received by both of the Hall elements becomes a reference value by moving the first and second Hall elements to first and second directions, the other of the magnet and the coil supporting member are fixed to a supporting frame.

Abstract: A zoom lens includes: a front group including a plurality of movable lens groups; and a rear group that is provided on an image side of the front group and that includes a negative lens and a positive lens. The positive lens has a flat lens surface on its image side, and is tiltable about a spherical center of its object side lens surface that is convex on the object side. When a lens system is inclined, the positive lens is tilted in relation to the optical axis of the lens system based on: a focal length of the overall lens system; an angle of the optical axis of the lens system after being inclined in relation to the optical axis before being inclined; a distance between the image side lens surface of the positive lens and the image plane; and a refractive index of the positive lens.

Abstract: An image stabilizer includes: an electric actuator including a coil and a magnet capable of moving relatively; a moving frame to which one of the coil and the magnet, and a correcting lens are fixed; a supporting frame to which the other thereof is fixed and which supports the moving frame. The image stabilizer further includes first and second hall elements which detect information on a position of the correcting lens in first and second directions by detecting magnetic force of the magnet, in which centers of detecting portions of the hall elements detecting magnetic force approximately face positions in directions rotationally shifted from the first and second directions by an appropriate angle on the same plane and overlapped with edges of the magnet, and the first and second hall elements detect magnetic force in the directions perpendicular to the directions in which the edges extend.

Abstract: An image stabilizer includes a driver having a coil and magnet, where a correcting lens on a moving frame is moved by the driver in a first direction perpendicular to an optical axis of a lens system and in a second direction perpendicular to the first direction and optical axis, and an optical axis of the correcting lens corresponds with the optical axis of the lens system. The coil and magnet are fixed to the moving frame and a supporting frame; the driver includes first and second coils for moving the correcting lens in the first and second directions, and a magnet applying magnetic force to those coils; and thrust generated from the first and second coils are directed in the first and second directions; a magnetic member attracted to or repelled by the magnet is provided in the vicinity of the first and second coils.

Abstract: An image stabilizer includes a driver having a coil and magnet, where a correcting lens on a moving frame is moved by the driver in a first direction perpendicular to an optical axis of a lens system and in a second direction perpendicular to the first direction and optical axis, and an optical axis of the correcting lens corresponds with the optical axis of the lens system. The coil and magnet are fixed to the moving frame and a supporting frame; the driver includes first and second coils for moving the correcting lens in the first and second directions, and a magnet applying magnetic force to those coils; and thrust generated from the first and second coils are directed in the first and second directions, each forming an angle of approximately 45° with a line connecting the optical axis of the correcting lens and the center of a lens barrel.

Abstract: A zoom lens including a varifocal lens unit having a plurality of movable lens groups, and a prism disposed on an image side of the varifocal lens unit. The prism has an incident plane on which a light flux from the varifocal lens unit enters, and an exit plane from which the light flux is emitted toward an image plane, and is configured such that the incident plane or the exit plane or both planes can be inclined with respect to an optical axis, whereby a field of view is shifted by a predetermined amount by inclining the plane.

Abstract: A zoom lens includes a varifocal lens unit including a plurality of movable lens groups, and a prism disposed on an image side of the varifocal lens unit. The prism has an incident plane into which a light flux from the varifocal lens unit enters, and an exit plane from which the light flux is emitted toward an image plane, the exit plane capable of being inclined with respect to an optical axis, the exit plane inclined in accordance with a following conditional expression “?=?f×?/[Bf(n?1)]”, where ?: an angle formed by a normal of the exit plane and the optical axis, f: a focus distance of a whole lens system, ?: a turning angle of a lens system, Bf: a distance from the exit plane of the prism to the image plane along the optical axis, and n: a refraction index of the prism.

Abstract: An image stabilizer manufacturing method provides an image stabilizer which can steady blurry images produced by camera shake or vibration. One of the magnet and a coil supporting member are fixed to a moving frame. In the state in which an optical axis of a correcting lens is matched with an optical axis of a lens system, after first and second Hall elements were properly positioned at the position in which magnetic force received by both of the Hall elements becomes a reference value by moving the first and second Hall elements to first and second directions, the other of the magnet and the coil supporting member are fixed to a supporting frame.

Abstract: An image stabilizer can steady blurry images. The image stabilizer includes first and second Hall elements and a yoke with a magnet fixed thereto, the yoke including a projected portion to escape magnetic flux from the edge portion of the magnet. In the state in which one of magnets and a coil supporting holder are fixed to a moving frame and in which the optical axis of the correcting lens is matched with the optical axis of the lens system, the first and second Hall elements are moved to the first and second directions so that the first and second Hall elements are properly positioned at the positions in which magnetic force received by the two Hall elements from the magnet becomes a reference value, whereafter the other of the magnets and the coil supporting member are fixed to a supporting frame.

Abstract: An image stabilizer that stabilizes images by moving a correcting lens for stabilizing images formed by a lens system in a first direction and a second direction which are perpendicular to an optical axis of said lens system and which are perpendicular to each other, includes a driver which is provided at one side of the correcting lens and which moves the correcting lens in the first direction and the second direction.

Abstract: A disc drive apparatus is composed of a table rotating means for rotating a turntable on which a disc-like recording medium is detachably mounted, a chassis to which the table rotating means is attached, an optical pickup device for recording and/or reproducing an information signal on and/or from the disc-like recording medium rotated by the table rotating means, an optical pickup moving means including two guide members for guiding the optical pickup device in the radius direction of the disc-like recording medium and moving the optical pickup device along the two guide members and a supporting means for supporting at least one guide member of the two guide members to the chassis or a chassis side member, wherein the supporting means includes an elastic member for spring-biasing the one guide member at least at one end of the longitudinal direction of the one guide member in the direction crossing its shaft direction and an adjustment screw located so as to oppose the elastic member so that it may be screwe