Optical disk, method of manufacturing the same and method of rec

Details Optical disk, method of manufacturing the same and method of rec Optical disk, method of manufacturing the same and method of rec

1993-12-14

1995-05-09

Dzierzynski, Paul M.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692753, G03C 100, G11B 724

Patent

active

054146917

ABSTRACT:
A recordable optical disk is provided with: a disk substrate having a recording surface; a track portion, which is coaxially or spirally arranged on the recording surface, and to which the information is recorded by irradiating a light beam modulated in correspondence with the information, thereonto; and an interval portion disposed on the recording surface between adjacent turns of the track portion on the recording surface. The reflection coefficient of the interval portion is higher than the reflection coefficient of the track portion.

REFERENCES:
patent: 4646278 (1987-02-01), Okano
patent: 4961183 (1990-10-01), Tinet
patent: 5215800 (1993-06-01), Daido et al.

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