Methods and apparatus are provided for making an optically readable storage media in which the reading beam passes through a bonding layer configured with a reactive material that transforms from an optically transparent state to an optically opaque state after exposure to a predefined stimulus, thereby...http://www.google.es/patents/US6960382?utm_source=gb-gplus-sharePatente US6960382 - Limited play optical devices with interstitial reactive layer and methods of making same
Limited play optical devices with interstitial reactive layer and methods of ...
