Magneto-optical head for magneto-optical reading and writing system

A magneto-optical head for a magneto-optical writing and/or reading system for writing onto or reading from a magneto-optical recording medium, the magneto-optical head comprising:

• a coil member comprising a plurality of planar coil layers, adjacent ones of the coil layers being electrically connected through a respective insulating layer disposed therebetween;
• and
• a lens connected to said coil member;
• wherein:
• said lens focuses incident light onto the magneto-optical recording medium,
• each planar coil layer further comprises a spiral structure, and
• the direction of the spiral structure of each planar coil layer is opposite to that of an adjacent one of the coil layers.

A magneto-optical head for a magneto-optical writing and/or reading system for writing onto or reading from a magneto-optical recording medium, the magneto-optical head comprising:

• a coil member comprising a plurality of planar coil layers, adjacent ones of the coil layers being electrically connected through a respective insulating layer disposed therebetween;
• and
• a lens connected to said coil member;
• wherein:
• said lens focuses incident light onto the magneto-optical recording medium, and
• said lens further comprises:
• a transmitting portion which receives and transmits the incident light;
• and
• an internal reflection portion within said lens;
• wherein the internal reflection portion receives the transmitted light and internally reflects the transmitted light to focus incident light onto the magneto-optical recording medium.

A magneto-optical head for a magneto-optical writing and/or reading system for writing onto or reading from a magneto-optical recording medium, the magneto-optical head comprising:

• a coil member comprising a plurality of planar coil layers, adjacent ones of the coil layers being electrically connected through a respective insulating layer disposed therebetween;
• and
• a lens connected to said coil member;
• wherein said lens focuses incident light onto the magneto-optical recording medium, and
• further comprising a connection member interposed between said lens and said coil member, which connects said coil member to one side of said lens, facing the magneto-optical recording medium, and which electrically connects the coil layers to an external power supply.

A magneto-optical head for a magneto-optical writing and/or reading system for writing onto or reading from a magneto-optical recording medium, the magneto-optical head comprising:

• a coil member comprising a plurality of planar coil layers, adjacent ones of the coil layers being electrically connected through a respective insulating layer disposed therebetween;
• and
• a lens connected to said coil member;
• wherein:
• said lens focuses incident light onto the magneto-optical recording medium, and
• said connection member comprises solder bumps formed projecting from an uppermost one of the coil layers of said coil member, wherein the solder bumps are of a conductive material for electrical connection to the external power supply, and adhere to said lens by thermal melting.

A magneto-optical head for a magneto-optical writing and/or reading system for writing onto or reading from a magneto-optical recording medium, the magneto-optical head comprising:

• a coil member comprising a plurality of planar coil layers, adjacent ones of the coil layers being electrically connected through a respective insulating layer disposed therebetween;
• and
• a lens connected to said coil member;
• wherein:
• said lens focuses incident light onto the magneto-optical recording medium, and the lens further comprises a conductive layer;
• each of the coil layers comprises first and second contact portions which electrically connect to another one of the coil layers through the respective insulating layer, and
• one of the coil layers includes a third contact portion which electrically connects the coil member to the conductive layer of the lens to form the electrical pathway between the conductive layer and the coil layers.

A magneto-optical head for a magneto-optical writing and/or reading system for writing onto or reading from a magneto-optical recording medium, the magneto-optical head comprising:

• a slider member moveable relative to the magneto-optical recording medium and including a hole;
• a lens having a conductive layer and which focuses incident light onto the magneto-optical recording medium, the lens being disposed in the hole;
• and
• a coil member comprising planar coil layers separated by an insulating layer through which the coil layers are electrically connected to each other and to the conductive layer of the lens.