ELECTRONIC PAINTING SYSTEM AND APPARATUS FOR INPUT TO THE SAME

摘要

The present invention is related to an apparatus for providing input to an electronic painting system. The apparatus comprises a plate (502) arranged for receiving light and adapted to let at least some of the received light undergo total internal reflection within the plate and to allow the total internal reflection to be frustrated and a structure at least comprising a support layer (500) for supporting the plate, whereby the structure has a surface adjacent to a surface of the plate in order to let the frustrated total internal reflection propagate into the structure and whereby the structure is arranged for sensing the frustrated total internal reflection.