There is provided a rewritable tri-layer optical information recording medium of the phase change type having a high sensitivity. In this medium, a reflective layer (5) is formed by a thin film of an Ni-Cr alloy or an Au-Cr alloy.
申请公布号
DE3769862(D1)
申请公布日期
1991.06.13
申请号
DE19873769862
申请日期
1987.06.29
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., KADOMA, OSAKA, JP