Hologram element system

Details Hologram element system Hologram element system

1992-03-05

1993-12-21

Hannaher, Constantine

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4437, 359 15, 359 19, G02B 532

Patent

active

052726908

ABSTRACT:
A hologram element receives a first and second laser beams at a first angle relative to one another. The hologram element emits the laser beams at a second angle relative to one another. The second angle is less than the first angle. The result is that laser beams from widely divergent laser sources may be directed into the same optical channel. Closely spaced beams are thereby provided for multiple beam optical data storage systems.

REFERENCES:
patent: 3767310 (1973-10-01), Dickson
patent: 4497534 (1985-02-01), Sincerbox
patent: 4644160 (1987-02-01), Arimoto et al.
patent: 4679184 (1987-07-01), Yoshida et al.
patent: 4681394 (1987-07-01), Noguchi et al.
patent: 4701005 (1987-10-01), Noguchi et al.

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