Tactotek Oy

Juha Sepponen

Mikko Heikkinen

Antti Keränen

Jarmo Sääski

Tomi Simula

Vinski Bräysy

Mikko Sippari

Paavo Niskala

Pälvi Apilo

Hasse Sinivaara

Pasi Korhonen

Tapio Rautio

Juha-Matti Hintikka

Tero Heikkinen

Janne Asikkala

Samuli Yrjänä

Heikki Tuovinen

Ville Wallenius

Johanna Juvani

Simo Koivikko

Tero Rajaniemi

Outi Rusanen

Taneli Salmi

Suvi Kela

Olimpia Migliore

Sami Torvinen

An integrated optically functional multilayer structure includes a flexible, substrate film arranged with a circuit design including at least a number of electrical conductors preferably additively printed on the substrate film; a light source provided upon a first side of the substrate film to internally illuminate at least portion of the structure for external perception; an optically transmissive plastic layer produced upon the first side of the substrate film, said plastic layer at least laterally surrounding, the light source, the substrate film at least having a similar or lower refractive index therewith; and a reflector design comprising at least one material layer, said reflector design being configured to reflect, the light emitted by the light source and incident upon the reflector design.

Optically functional multilayer structure and related method of manufacture

An integrated optically functional multilayer structure includes a flexible, substrate film arranged with a circuit design including at least a number of electrical conductors on the substrate film; and a plurality of top-emitting, bottom-installed light sources provided upon a first side of the substrate film to internally illuminate at least portion of the structure for external perception via associated outcoupling areas, wherein for each light source of the plurality of light sources there is optically transmissive plastic layer, produced upon the first side of the substrate film, said plastic layer at least laterally surrounding the light source, the substrate film at least having a similar or lower refractive index therewith; and reflector design including at least one material layer, provided at least upon the light source and configured to reflect the light emitted by the light source and incident upon the reflective layer towards the plastic layer.

Optically functional multilayer structure suitable for large area illumination and related method of manufacture

Optically functionally multilayer structure suitable for large area illumination and related method of manufacture

An integrated optically functional multilayer structure includes a flexible, substrate film arranged with a circuit design including at least a number of electrical conductors on the substrate film; and a plurality of top-emitting, bottom-installed light sources provided upon a first side of the substrate film to internally illuminate at least portion of the structure for external perception via associated outcoupling areas, wherein for each light source of the plurality of light sources there is optically transmissive plastic layer, produced upon the first side of the substrate film, said plastic layer at least laterally surrounding the light source; the substrate film at least having a similar or lower refractive index therewith; and reflector design including at least one material layer, provided at least upon the light source and configured to reflect the light emitted by the light source and incident upon the reflective layer towards the plastic layer.

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Oulunsalo, Finland

Juha Sepponen