Disk storage device having light receiving device located at imp

Details Disk storage device having light receiving device located at imp Disk storage device having light receiving device located at imp

1993-02-19

1994-08-09

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 4423, 369107, 369 4432, G11B 700

Patent

active

053373030

ABSTRACT:
A disk storage device includes a light source emitting a light, an objective lens for focusing the light on a surface of a recording film of a disk via a protection film protecting the recording film, and a motor for rotating the disk. A detector receives the light reflected by the surface of the recording film and reproduces information recorded on the recording film. The detector is located at a position where the following condition is satisfied:

REFERENCES:
patent: 5001333 (1991-03-01), Marshall
patent: 5153864 (1992-10-01), Ishika
patent: 5199012 (1993-03-01), Imai
patent: 5235581 (1993-08-01), Miyagawa et al.

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