发明名称 Random access optical storage having beam multiplexer
摘要 This application concerns an optical storage with an optical storage medium having a plurality of storage fields arranged in matrix fashion, wherein each storage field of this storage field matrix comprises a storage position matrix consisting of a number of storage positions arranged in matrix fashion, and an X/Y deflection system for random-addressing a storage position of a storage field of the storage field matrix responsive to an X- and a Y-control signal generated by a control unit, so that a light beam impinging on the X/Y deflection system is directed to a storage position of a storage field of the optical storage medium corresponding to the position of the X/Y deflection system. The invention provides for a beam multiplexer to be positioned intermediate the light source and the optical storage medium, by which an incident light beam is fanned into a number of light beams forming a light beam matrix such that each light beam of the light beam matrix is associated with one storage field of the storage field matrix of the optical storage medium, and that, responsive to the control of the X/Y deflection system by the X- and the Y-control signal, each light beam of the light beam matrix impinges on the corresponding storage position of the associated storage field of the storage field matrix, so that at any one time the associated light beam of the light beam matrix impinges on one of the plurality of storage fields.
申请公布号 US5311474(A) 申请公布日期 1994.05.10
申请号 US19910776147 申请日期 1991.10.15
申请人 INTERNATIONAL BUSINESS MACHINES CORP. 发明人 URBAN, NORBERT
分类号 G11B7/00;G11B7/0045;G11B7/135;G11C13/04;(IPC1-7):G11C13/04 主分类号 G11B7/00
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