Optical recording medium

Details Optical recording medium Optical recording medium

1983-11-14

1986-08-12

Faber, Alan

Dynamic information storage or retrieval

Storage medium structure

Special groove

369109, 369275, 369 44, G11B 724

Patent

active

046060189

ABSTRACT:
A reflection-type optical recording medium which has a surface on which track guide grooves are formed and in which a layer of a recording material that has an increased energy reflection coefficient in a write portion. The track guide grooves are formed with a depth .phi..sub.0 so that improved efficiency results because of the selection of various parameters of the system.

REFERENCES:
patent: 4161752 (1979-07-01), Basilico
patent: 4423502 (1983-12-01), Dil
patent: 4481620 (1984-11-01), Murakami
"Diffraction Theory of Laser Read-Out Systems for Optical Video Discs", by H. H. Hopkins, J. Opt. Soc. Am., vol. 69, No. 1, Jan. 1979, pp. 4-24.

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