METHOD FOR READ-ONLY OPTICALLY READABLE MEDIA

摘要

Title Method for Making Read-Only Optically Readable Media A method for making read-only optical recording media having an information layer which is comprised of a photohardened refractive index-modulatory polymer. The refractive index-modulatory polymer is imaged by intimately contacting the photosensitive polymer layer with a relief image photomask-master and passing actinic radiation through the photomask-master to harden the exposed areas of the polymer. The imaged polymer layer is then flood exposed to fix the refractive index image within the polymer layer. IM-0044