Optical recording medium having a disc with deformed pits

Details Optical recording medium having a disc with deformed pits Optical recording medium having a disc with deformed pits

1997-02-14

1998-07-14

Hindi, Nabil

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

G11B 724

Patent

active

057815267

ABSTRACT:
An optical recording medium includes a transparent substrate having a surface formed with a track of pits. A reflecting layer extends on the surface of the transparent substrate. The pits include first-type pits and second-type pits. The first-type pits are devoid of projecting rims extending along edges thereof while the second-type pits have projecting rims extending along edges thereof.

REFERENCES:
patent: 4488184 (1984-12-01), Kurata
patent: 5016240 (1991-05-01), Strandjood et al.
patent: 5430281 (1995-07-01), Lentz et al.
patent: 5513260 (1996-04-01), Ryan
patent: 5570339 (1996-10-01), Nagano
patent: 5608717 (1997-03-01), Ito et al.

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