Magneto-optical disk recording apparatus
First Claim
1. A magneto-optical disk recording apparatus comprising:
- an optical head shiftable in the diametrical direction of a magneto-optical disk for irradiating a light beam onto the magneto-optical disk;
a magnetic head disposed to be opposite said optical head with the magneto-optical disk interposed therebetween for applying a magnetic field to the magneto-optical disk, said magnetic head being shifted in the diametrical direction of the magneto-optical disk; and
means for shifting said optical head and said magnetic head in said diametrical direction of said disk;
wherein said magnetic head consists of an E-shaped core and a coil wound around a center core element thereof, said E-shaped core being so formed that the intensity of the magnetic field generated from said magnetic head changes more gradually in the diametrical direction of the magneto-optical disk than in a direction orthogonal thereto.
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Accused Products
Abstract
A magneto-optical recording apparatus comprising an optical head shiftable in the diametrical direction of a magneto-optical disk and capable of irradiating a light beam onto the magneto-optical disk, and a magnetic head disposed to be mutually opposite to the optical head with the magneto-optical disk interposed therebetween and capable of applying a magnetic field to the magneto-optical disk while being shifted in the diametrical direction of the magneto-optical disk, wherein the magnetic head is shiftable in the diametrical direction of the magneto-optical disk together with the optical head. The magnetic head consists of an E-shaped core and a coil wound around a center core element thereof, and the E-shaped core is so formed that the sectional length of the center core element in one direction extending toward two side core elements becomes equal to or shorter than the sectional length in another direction orthogonal thereto. The magnetic head is so disposed that the orthogonal direction of its core becomes coincident with the diametrical direction of the magneto-optical disk.
17 Citations
8 Claims
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1. A magneto-optical disk recording apparatus comprising:
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an optical head shiftable in the diametrical direction of a magneto-optical disk for irradiating a light beam onto the magneto-optical disk; a magnetic head disposed to be opposite said optical head with the magneto-optical disk interposed therebetween for applying a magnetic field to the magneto-optical disk, said magnetic head being shifted in the diametrical direction of the magneto-optical disk; and means for shifting said optical head and said magnetic head in said diametrical direction of said disk; wherein said magnetic head consists of an E-shaped core and a coil wound around a center core element thereof, said E-shaped core being so formed that the intensity of the magnetic field generated from said magnetic head changes more gradually in the diametrical direction of the magneto-optical disk than in a direction orthogonal thereto. - View Dependent Claims (2, 3)
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4. A magneto-optical disk recording apparatus comprising:
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a body equipped with an optical head shiftable in the diametrical direction of a magneto-optical disk for irradiating a light beam onto the magneto-optical disk; a cover hingedly attached to said body; a magnetic head disposed in said cover to be shiftable in the diametrical direction of the magneto-optical disk for applying a magnetic field to the disk; wherein said magnetic head consists of an E-shaped core and a coil wound around a center core element thereof, said E-shaped core being so formed that the intensity of the magnetic field generated from said magnetic head changes more gradually in the diametrical direction of the magneto-optical disk than in a direction orthogonal thereto; means for shifting said optical head and said magnetic head in said diametrical direction of the disk; and lock means for swinging said magnetic head relative to the magneto-optical disk in compliance with movement of the cover. - View Dependent Claims (5, 6, 7, 8)
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Specification