Diffractive optical elements (DOEs), manufactured in process chains consisting of many steps for making bulk products, have become a key element in many optical systems. Unfortunately, with no alternative to lithographic or laser beam techniques in sight, no economic manufacturing technique for the single piece production of DOEs exists. The LFM together with the Bremer Institut fur angewandte Strahltechnik (BIAS) is currently developing an adapted diamond turning process using a nanometerstroke Fast Tool Servo that will change this situation.
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