Optical recording disk

Details Optical recording disk Optical recording disk

1992-05-27

1994-05-17

Dzierzynski, Paul M.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

369283, 369291, 3692754, 430945, 430935, 430270, G11B 709, G11B 726

Patent

active

053134524

ABSTRACT:
In preparing an optical recording disk by spin coating a dye-containing solution to an annular substrate to form a recording layer thereon, a circular channel is preformed in the substrate in proximity to the inner peripheral edge of the substrate for defining an inner boundary of the recording layer. Then the recording layer is free of corrugations near its inner boundary, leading to improved adhesion of an overlying protective film and a minimal variation in reflectivity.

REFERENCES:
patent: 4600625 (1986-07-01), Abe et al.
patent: 4626496 (1986-12-01), Sato
patent: 4652514 (1987-03-01), Abe
patent: 4991163 (1991-02-01), Tokushuku et al.
patent: 5058096 (1991-10-01), Ando et al.
patent: 5080946 (1992-01-01), Takagisi et al.
patent: 5099469 (1992-03-01), Dobbin et al.
patent: 5111442 (1992-05-01), Nakajima et al.
patent: 5161150 (1992-11-01), Namba et al.
patent: 5219707 (1993-06-01), Namba
Nikkei Electronics; Jan. 23, 1989; No. 465, p. 107.
SPIE; vol. 1078; Optical Recording Topical Meeting; 1989; pp. 80-87.
The Fuctional Dye Department or the Kinki Chemical Society; Mar. 3, 1989; pp. 14-19.

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