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Researchers introduce a cost-effective method for producing optical Fresnel zone plate lenses, using colored photoresists for ...

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A team with researchers at the University of Tokyo and JSR Corp. fabricated and tested flat lenses called Fresnel zone plates ... and only a small number of devices are available.

A team with researchers at the University of Tokyo and JSR Corp. fabricated and tested flat lenses called Fresnel zone plates ... and only a small number of devices are available.