Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1994-01-26
1995-04-25
Dzierzynski, Paul M.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369 4428, G11B 700
Patent
active
054105307
ABSTRACT:
An optical data storage system comprises a multiple data surface medium and optical head. The medium comprises a plurality of substrates separated by a light transmissive medium. Data surfaces are located on the substrate surfaces which lie adjacent a light transmissive medium. The data surfaces are substantially light transmissive. The optical head includes an aberration compensator to allow the head to focus onto the different data surfaces and a filter to screen out unwanted reflected light.
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IBM TDB, vol. 30, No. 2, Jul. 1987, "Optical Disk Family", G. R. Limestahl et al.
Best Margaret E.
Rosen Hal J.
Rubin Kurt A.
Strand Timothy C.
Dzierzynski Paul M.
International Business Machines - Corporation
Millett Douglas R.
Wong Don
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