Optically readable information disc comprising an envelope of cross-linked synthetic resin.

摘要

An optically readable information disc having a carrier body (1) of polycarbonate which on one side has an optically readable information track (3) which is provided in the surface of the carrier body and which is covered with a reflection layer (6), the disc comprising an envelope (7) of a cross-linked transparent synthetic resin extending as a closed envelope overthe information track with reflection layer present on the upper side of the disc, over the edge of the disc and over the lower side of the disc.