Patent ID: 6934224

Claim:
An optical recording medium used for a near field recording and the optical recording medium receives light via a side at which a transparent heat radiating layer is positioned to thereby perform at least one of recording and reproducing information, comprising: a substrate; a metal reflective layer formed on the substrate; a first protective layer of Zn—SiO 2 formed on the metal reflective layer; a recording layer formed on the first protective layer, the recording layer being made of a material undergoing a phase change and configured to change a complex index of refraction under said light; a second protective layer of Zn—SiO 2 formed on the recording layer; and the transparent heat radiating layer formed on the second protective layer and having a heat conductivity higher than the second protective layer so as to disperse heat from the recording layer, wherein the transparent heat radiating layer is a multi-layer film comprising a plurality of layers stacked together, having substantially same optical constants and having different heat constants.