Aperture stop for a flying optical head
AssigneeSeagate Technology LLC
InventorsNicholas Jordache, Ronald E. Gerber, Ghanim A. Al-Jumaily, Edward C. Gage, Lori G. Swanson
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Abstract
An optical head for performing optical data operations relative to a medium includes a slider body and at least one lens. Positioned between the slider body and the lens is an aperture stop for blocking the transmittance of light. The aperture stop includes an opaque layer that circumscribes a transparent region.
Claims22
An optical head for performing optical data operations relative to a medium, the optical head comprising:
- a slider, positionable over multiple locations on the medium;
- and
- light controlling means, coupled to the slider, for focusing and limiting light transmission relative to the medium.
A method of constructing an optical head, the method comprising:
- constructing a slider body;
- forming an opaque layer on the slider body, the opaque layer having an aperture;
- and
- constructing a lens system so that the opaque layer is between the lens system and the slider body.
An optical head for conveying light representing data stored on a medium, the optical head comprising:
- a slider body;
- at least one lens;
- and
- an aperture stop positioned between the slider body and the at least one lens.
A disc drive for performing optical data operations relative to a medium, the disc drive comprising:
- a light source, capable of producing light;
- an optics system coupled to the light source and capable of directing light produced by the light source;
- an optical head, receptive of light from the optics system, the optical head comprising a slider proximate the medium, an aperture stop, and a lens, the aperture stop between the slider and the lens.
Dependencies are inferred from the claim text.