Optical disk for high speed data recording and playback

Details Optical disk for high speed data recording and playback Optical disk for high speed data recording and playback

1998-03-02

2000-10-31

Cao, Allen T.

Dynamic information storage or retrieval

Storage medium structure

Layered

G11B 584

Patent

active

06141316&

ABSTRACT:
An optical disk for high speed data recording and playback is disclosed. The optical disk includes a stiffening layer having two spaced-apart surfaces, the stiffening layer having a specific stiffness selected to be greater than 1*10.sup.8 inches and being positioned at the center of the thickness of the optical disk. The optical disk further includes first and second recording layers, each recording layer being formed over opposite surfaces of the stiffening layer, and first and second substrates being formed over the first and second recording layers, respectively.

REFERENCES:
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patent: 5128388 (1992-07-01), Komori et al.
patent: 5703868 (1997-12-01), Kobayashi et al.
patent: 5874132 (1999-02-01), Jung
patent: 5936934 (1999-08-01), Kuribayashi
Formulas for Natural Frequency and Mode Shape, by Robert D. Blevins, Ph.D., Robert E. Krieger Publishing Company, Malabar, Florida (1979), pp. 237-238, 240-244, 246-248.

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