Elements of the separation of particles which are aimed at preventing the formation of rings of a newton in the covering panels sensitive to touch

摘要

The invention has for its object an apparatus in which two layers of materials that are transparent spaced, transmitting the application and normally parallel beams are placed pressure of one another, locally, the production of rings of a newton per this being largely avoided. / p & & p & according to the invention, the apparatus comprises: a first layer 30, of a first transparent material, having a first face and a second face 31 parallel, the first face receiving the application, a first part passes through the first layer and leaves that - latter by the second face 31, a second layer 20, a second transparent material, having a third face 21 and a parallel fourth face, the third face 21 being mounted pressure of the second face 31 of the first layer 30 and parallel to it in order to receive the application is transmitted by the first layer 30, this second layer up to the transmitting fourth face, a second part of the application recue by the third surface and of fine particles 53 of sizes random to the inside of a granular class determined placed in the space between the second face 31 and the third surface 21 so that the largest particles are distributed of random with a density determined and in contact simultaneously with the second face 31 and the third face 21.