Freeform processing of micro-optics on curved surfaces

By using the developed technology of free-form processing of micro-optics on curved surfaces, ultra-precision processing to extend the limits of various lithographic procedures for structuring three-dimensional micro-optics is possible.


Production of

  • 3D micro-optical structures in optical quality
  • Geometries which are difficult or impossible to structure with lithographic techniques such as photo-, gray tone or laser lithography
  • Free-form geometries



  • Cutting processes with small diamond tools



  • Production of a lens array as form insert of an injection molding tool whose molded plastic lens array serves as a 3D micro-optical imaging element to transfer a flat mask on to a curved substrate surface using a lithography process
  • Subsequent replication with injection molding