Interglass Technology Ag

Tobii Ab

Metamaterial Inc.

Lutz Körner

Anders Kingbäck

Daniel Piotrowski

René Josef Ulrich

Peter Hess

Daniel Ljunggren

Alexander Greber

Anders Höglund

Urs Büttiker

Reto Müller

A method of producing a lens with an embedded foil, comprising the steps of positioning a foil () on a foil fixation holder, providing adhesive attachment dots () on the foil () on surface portions () opposite to the foil fixation holder, positioning the front mould () ensuring the contact of the attachment dots () with a surface () of the front mould (), retracting the foil fixation holder and positioning a back mould () opposite to the front mould (). Then the front mould () and the rear mould () are connected with a sealing bridging element () to build an assembly in order to form a mould cavity () with a pouring opening, wherein the edge () of the foil () is spaced apart () from the bridging element () and the assembly comprises passages between the attachment dots (), the foil () and the front mould backside () allowing pouring a monomer into the entire mould cavity () before curing the monomer and decomposing the assembly as well as cutting the lens with the embedded foil from the polymer block.

Method of producing a lens with an embedded foil

A method for mounting functional elements in a lens includes mounting the functional elements on a foil, applying a closed contour alignment surface of an alignment tool having a central opening surrounded by the closed contour on the foil portion opposite to the mounted function elements, applying underpressure on the central opening to maintain the foil portion with the mounted functional elements on the alignment tool, cutting a flap including the foil portion and supporting the functional elements out of the foil, positioning and aligning the flap through actuator, fixing the position of the flap against the adjacent foil surface, embedding the foil with the mounted functional elements in a predetermined distance to the front surface of a mould, and casting and curing the lens with the embedded foil.

Method for mounting functional elements in a lens

A lens with an embedded foil is produced by positioning a foil on a holder, providing adhesive attachment dots on the foil on surface portions opposite to the holder, positioning a front mould ensuring the contact of the dots with a front mould surface, retracting the holder and positioning a back mould opposite to the front mould. The mould is then connected with a sealing bridge to build an assembly forming a mould cavity with a pouring opening. The edge of the foil is spaced apart from the bridge and the assembly has passages between the dots, the foil, and the front mould surface allowing pouring a monomer into the cavity before curing the monomer, decomposing the assembly and cutting the lens from the polymer block.

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Urdorf, Switzerland

Lutz Körner