发明名称 |
Reference beam auto-focus apparatus for modularized volume-holographic memory |
摘要 |
In a method for addressing holograms stored in a plurality of separate storage media, a reference beam is directed to a selected one of the plurality of storage media, the reference beam is then focused so as to obtain a substantially flat wavefront within a reference beam plane of the selected storage medium, and the angle of the reference beam is then varied so as to select a hologram stored therein.
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申请公布号 |
US5877875(A) |
申请公布日期 |
1999.03.02 |
申请号 |
US19970863638 |
申请日期 |
1997.05.28 |
申请人 |
NORTHROP GRUMMAN CORPORATION |
发明人 |
REIS, JAMES J.;DAVIS, RICHARD L.;STOLL, HAROLD M. |
分类号 |
G03H1/30;G11B7/0065;G11B7/085;G11B7/135;G11C13/04;(IPC1-7):G03H1/26 |
主分类号 |
G03H1/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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