Rolling Optics Ab

Rolling Optics Innovation Ab

Fredrik Gustavsson

Axel Lundvall

Fredrik Nikolajeff

Robert Eklund

Johannes Enlund

Tobias Wedin

The present invention provides a method of producing a product comprising an array of product features () arranged on a surface () of a substrate sheet (), and an arrangement for the production of such products. In this method curable compound () is filled into recesses of a matrix (), pre-cured and then printed onto the substrate sheet (), thereby forming printed product features (). These printed product features () and additional product features () arranged on the opposed side of the substrate sheet () may form image objects and focusing elements, respectively, of a synthetic image device. By way of example a cast cure step can be used to form the additional product features (). Preferably the production of the product is performed in a continuous roll-to-roll process.

Method for printing product features on a substrate sheet

The present invention provides a method of producing a two-sided microstructured product and a registration structure that can be used for the method. The method comprises the steps of: () providing primary product features () at a first surface of a substrate sheet (); () providing secondary product features () at an opposed surface; () registering the mutual alignment of the primary and secondary product features () to estimate alignment parameters; and () aligning the provision of primary and secondary product features (). The registration structure comprises a registration-array of focusing elements () at a first surface and a registration-array of reference objects () at an opposed surface aligned with primary and secondary product features () that provides a holographic representation () of the reference objects () in order to estimate the alignment of product features ().

Method of producing a microstructured product

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Lidingö, Sweden

Fredrik Gustavsson