Nokia Corporation

Tactotek Oy

Teknologian Tutkimuskeskus Vtt

Janne Aikio

Antti Keränen

Jakke Mäkelä

Kari Kataja

Kari Rönkä

Sanna Aikio

Teemu Alajoki

Antti KERÄNEN

Arrangement for use with a touchscreen, includes a substrate, such as an optically substantially transparent film or a film defining a through hole, the substrate including support electronics, such as printed electronics including a number of printed conductors, for providing power, control and/or communications connection to further electronic components, a number of emitters and detectors arranged on the substrate into contact with the support electronics, for emitting and detecting light, respectively, and a lightguide arranged onto the substrate such that the emitters and detectors, and optionally at least part of the support electronics, are substantially immersed in the lightguide material, the properties of the lightguide including the refractive index of the lightguide material being selected and the emitters and detectors being configured so as to enable, when in use, total internal reflection (TIR)-type propagation of light within the lightguide between the emitters and detectors and recognition of a touch on the basis of a drop in the TIR performance as determined from the detected light. A related method of manufacture is presented.

Arrangement for a touchscreen and related method of manufacture

Arrangement () for a user input device, such as a touchscreen or a touchpad, comprising a substrate (), such as an optically substantially transparent flex film or a multilayer film, said substrate comprising support electronics () for providing power, control and/or communications connection to further electronic components (), a number of emitters and detectors () arranged to said substrate into contact with the support electronics, for emitting and detecting light, respectively, and a lightguide () provided, such as laminated, onto the substrate such that said emitters and detectors are optically coupled to the lightguide material, the properties of the lightguide including the refractive index of the lightguide material being selected and the emitters and detectors being configured so as to enable, when in use, total internal reflection (TIR) -type propagation of light within the lightguide between the emitters and detectors, and recognition of a touch on the basis of a drop in the TIR performance as determined from the detected light. A related method of manufacture is presented.

User input arrangement and related method of manufacture

A method and miniaturizable device is described to read/write information to an optical storage medium (). A device comprises one or more light sources () bounded up with an access unit () which is arranged to be controllable to a position, in which light beams () are transmitted transversal towards an optical storage medium, and reflected light beams () are analysed by a detector element () which further informs the access unit whether to move or stand still to keep light beams in focus and on track. A device according to the invention is possible to implement in a small size and low weight due to reduced component count and thin access unit geometries. A communication device () according to the invention may be implemented to fulfil a crucial need for ultraminiature range of communication devices.

Read write device for optical memory and method therefore

Growing community of inventors

Oulu, Finland

Janne Aikio