Optically readable thin film digital data storage medium

Details Optically readable thin film digital data storage medium Optically readable thin film digital data storage medium

1995-01-18

1996-11-26

Nelms, David C.

Dynamic information storage or retrieval

Storage medium structure

Combined with diverse art structure

3692751, 3692753, 369281, 369286, G11B 2338

Patent

active

055792960

ABSTRACT:
An optically readable data storage medium includes a thin film data carrier fabricated from first and second juxtaposed plastic layers. A microembossed data surface is positioned within an interface zone and includes physically displaced surface elements which encode digital data. An adaptor temporarily receives and supports the thin film data carrier from below and includes a centrally located aperture geometrically compatible with a standard CD player spindle to enable the adaptor to be supported and rotated by the spindle. The adaptor includes a refraction zone having an area and a location underlying the microembossed data surface to enable the light beam from the light source of the CD player to be focussed onto the rotatable data surface. The reflected light beam modulated by the digital data encoded within the microembossed data surface is intercepted and converted to an electrical signal by the CD player optical readout device.

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