Optical data storage apparatus and method

Details Optical data storage apparatus and method Optical data storage apparatus and method

1991-03-27

1993-08-10

Dzierzynski, Paul M.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369112, 369116, 3692753, 3692754, G11B 700

Patent

active

052355870

ABSTRACT:
An optical data storage apparatus and disc in which information is stored in the form of multiple submicron depths at information-storage sites on the disc surface. The depth information is read by directing a focused laser beam onto the storage sites, back reflecting a portion of the reflected beam into the laser cavity, and converting power fluctuations in the laser beam to submicron distance measurements.

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