Method for read-only optically readable media

Details Method for read-only optically readable media Method for read-only optically readable media

G - Physics

11

B

G11B 7/26 (2006.01)

Patent

CA 2066070

Title Method for Making Read-Only Optically Readable Media Abstract 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

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