Optical information recording medium

摘要

In the optical information recording medium of the present invention, a first recording layer having a translucent film and a second recording layer having a reflection film are layered. At least one layer of the first recording layer is provided, and the translucent film reversibly varies its reflectance and its transmittance according to a temperature variation caused by difference in a converging state of reproducing light. This ensures to obtain a sufficient amount of the reproducing light reflected from the first and second recording layers.