Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Patent
1990-10-03
1994-04-19
Nguyen, Hoa T.
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
3692751, 3692754, 369286, 3461351, G11B 724
Patent
active
053053044
ABSTRACT:
An optical information record carrier consists of upper and lower optical disks maintained separate from each other by an annular spacer juxtaposed to the outer periphery of the surfaces of the optical disks facing one another. The spacer is glued to the optical disks to produce a carrier with spaced optical disks and an air gap between the disks interior of the annular spacer. To assure sufficient adhesive will remain between the spacer surfaces and their facing optical disk surfaces as these components are squeezed together during the assembly process, one of the spacer of the optical disks is provided with a projection or recess.
REFERENCES:
patent: 4739345 (1988-04-01), Namba et al.
Nguyen Hoa T.
Pioneer Electronic Corporation
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