Abstract:Roll-to-roll (R2R) imprinting is a high-throughput and low-cost continuous manufacturing technique for the mass production of high-quality functional optical polymer films. In fabricating optical films, roll molds with high precision and surface finishs are key tooling components in the R2R imprinting process. However, the trimmed radial Fresnel array results in discontinuity of the machining trajectory. Therefore, direct diamond turning of trimmed radial Fresnel array on a roller mold was considered infeasibl… Show more
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