| abstract |
A kind of multi-layer optical information indicator of present invention offer and its manufacturing method,The middle layer (15) that the multi-layer optical information indicator (10) has multiple recording layers (14) and is set between multiple recording layer (14),Wherein,At least one of adjacent middle layer (15) (the first middle layer 15A) is made of adhesive with recording layer (14),Recording layer (14) contains high polymer binder and the dyestuff for being scattered in the high polymer binder,Or contain the macromolecule for being combined with dyestuff,The recording layer is deformed since dyestuff absorbs the heat that recording light generates,To form the convex shape (record mark M) towards first middle layer (15A) on the interface (18A) with the first middle layer (15A),Thus information is recorded,And with the groove (14A) for carrying out tracking servo on the interface (18A) with the first middle layer (15A). |