Optical information carrier

Details Optical information carrier Optical information carrier

1996-11-25

1998-08-04

Neyzari, Ali

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692753, 369116, G11B 724

Patent

active

057905126

ABSTRACT:
A method for manufacturing optical information carriers, in which a photoresist layer (20) on a master disc (5) is exposed by a radiation beam (19). The intensity of the radiation beam is controlled by a modulator (14) and a control device (10) in such a manner that the exposure dose has a constant predetermined value over the length of a recorded area, which value is independent of the length of the area.

REFERENCES:
patent: 5003527 (1991-03-01), Matsumoto et al.
patent: 5040165 (1991-08-01), Taii et al.
patent: 5442615 (1995-08-01), Ohsato et al.
patent: 5492744 (1996-02-01), Koike et al.

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