Static information storage and retrieval – Magnetic bubbles – Guide structure
Patent
1989-12-22
1991-01-29
Arnold, Bruce Y.
Static information storage and retrieval
Magnetic bubbles
Guide structure
350 371, 350 373, 350 375, 365216, 365235, 369103, G03H 122
Patent
active
049881531
ABSTRACT:
A holographic memory read-out system in which multiple pages of information are angularly multiplexed onto a recording medium, either planar or volume. For read-out of the hologram, a selected one of a plurality of surface-emitting semiconductor lasers arranged in a two-dimensional array is activated. The coherent output beam is passed through a collimating lens which produces a coherent plane-wave having a direction dependent upon which laser in the array produced the output beam. The plane-wave uniformly irradiates the recording medium to thereby diffract a selected image at a set angle to an imaging apparatus.
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Arnold Bruce Y.
Bell Communications Research Inc.
Falk James W.
Guenzer Charles S.
Ryan Jay
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