Rolling Optics Ab

Robert Eklund

Axel Lundvall

Fredrik Nikolajeff

Fredrik Gustavsson

A method for manufacturing of a tool for production of synthetic image devices comprises cutting () a surface structured plate, giving a respective first and second edge. The plate has geometrical structures&#x2014;microimages or focusing elements&#x2014;in a first surface. Cells comprising the geometrical structures have a predetermined period in a first direction. The first edge is brought () to face the second edge in a close proximity. The first direction of a first area of the plate adjacent to the first edge is positioned with a predetermined angle with respect to the first direction of a second area of the plate adjacent to the second edge. A relative translation in said same plane between the first edge and the second edge is adapted () for bringing a first cell border in the first area to a predetermined distance, relative a corresponding second cell border in the second area. The first and second edges are mutually fixated () and mounted () onto a cylindrical support. A tool for manufacturing of synthetic image devices is also disclosed.

Printing tool for production of synthetic image devices and a method of manufacturing such a tool

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 ().

Growing community of inventors

Österskär, Sweden

Robert Eklund