Optical information recording medium and manufacturing method thereof
OwnerTakashi Imai, Yoshihisa Usami +1inventors
InventorsTakashi Imai, Yoshihisa Usami, Kazutoshi Katayama
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Abstract
To provide an optical information recording medium capable of attaining high density recording and reducing the leakage of signals to adjacent tracks (cross-talk). The optical information recording medium includes: a first substrate having a pre-groove; an undercoating layer, a dye recording layer, and a reflective layer provided in this order on the first substrate; and a second substrate bonded to the reflective layer via an adhesive layer or a sticky layer, in which the pre-groove has a track pitch of 0.1 to 0.6 μm and a groove depth of 20 to 200 nm.
Claims12
An optical information recording medium comprising a first substrate having a pre-groove with a track pitch of 0.1 to 0.6 μm and a groove depth of 20 to 200 nm, an undercoating layer, a dye recording layer formed by coating a dye-containing solution, and a reflective layer provided in this order on the first substrate, and a second substrate bonded to the reflective layer via an adhesive layer or a sticky layer.
A method of manufacturing an optical information recording medium comprising:
- forming an undercoating layer, a dye recording layer, and a reflective layer in this order on a first substrate having a pre-groove with a track pitch of 0.1 to 0.6 μm and a groove depth of 20 to 200 nm, the dye recording layer being formed by coating a dye-containing solution;
- and
- bonding a second substrate to the reflective layer via an adhesive layer or a sticky layer.
Dependencies are inferred from the claim text.