Csem Centre Suisse D'electronique Et De Microtechnique Sa&#x2014;recherche Et D&#xe9;veloppement

Ilford Imaging Switzerland Gmbh

Iprint Institute

Institut Systèmes Industriels, Haute Ecole De Suisse Occidentale, Valais-wallis (hes-so)

Gilbert Gugler

Harald Walter

Alexander Stuck

Robert Beer

Maurice Pasquier

Marc Pauchard

Alain Germanier

David Martinet

Sebastian Filliger

Fritz Bircher

Christoph Ellert

A Zero-order diffractive filter comprising a first layer () with a periodic diffractive microstructure, forming a waveguide, and at least one adjacent second layer (), wherein said first layer () has a refractive index that is higher than the refractive index of said second layer () by at least 0.2. At least one of said second layers () is a porous layer comprising nanopores. The period &#x39b; of the diffractive microstructure is between 100 nm and 3000 nm.

Zero-order diffractive filter

A method for curtain coating a moving web () is described, wherein the total amount of the coating liquids and of the lateral flow liquid, added perpendicular to the lateral extension of the curtain (), is deposited on the moving web () under formation of only a minimally thickened bead, wherein there is no need to separate the lateral flow liquid before impingement on the moving web. The corresponding device incorporates in the edge guides () a groove () having incorporated, in its surface, channels parallel to the direction of the falling curtain (). The curtain is stabilized with the lateral flow liquid which is supplied to the groove (), the real guide surface of the curtain, perpendicular to the lateral extension of the curtain ().

Method and device for coating a moving web

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Marly, Switzerland

Gilbert Gugler