Optical recording medium

Details Optical recording medium Optical recording medium

1987-04-09

1989-01-24

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428167, 428336, 428412, 428469, 428480, 428500, 428522, 428692, 428694, 428698, 428704, 428900, G11B 724

Patent

active

048001120

ABSTRACT:
An optical recording medium having two adhered substrates one of which has a magneto-optic recording layer thereon and the other of which has at least one dielectric layer thereon so as to improve stability and weatherability. The dielectric layer is a transparent oxide, a nitride or a mixture of an oxide and a nitride and has a thickness between about 30.ANG. and 10 .mu.m. In an especially preferred embodiment, neither substrate is provided with any layers in either the internal area or the circumferential area of a disk and the substrates themselves are exposed and adhered together with adhesive.

REFERENCES:
patent: 4449138 (1984-05-01), Ando
patent: 4450553 (1984-05-01), Holster et al.

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