A coating and a method for producing a coating

Details A coating and a method for producing a coating A coating and a method for producing a coating

C - Chemistry, Metallurgy

23

C

C23C 16/04 (2006.01) B32B 3/26 (2006.01) C23C 16/505 (2006.01) C23C 16/511 (2006.01) G02B 1/11 (2006.01)

Patent

CA 2719306

What is described here is a method of producing a patterned coating by PECVD without additional production steps. The proposed method produces a moth-eye like macrostructure on a surface by direct deposition. Additionally, the macrostructure may be modulated by a microstructure with a surface texture in the subwavelength range. As a result, protective, antireflective coating comprising a carrier layer consisting of an optically transparent material, which, at least on one surface side, presents antireflective properties with respect the optical wavelengths of the radiation incident on the surface can be produced, as well as surface structures which are the basis for superhydrophobic surface properties.

L'invention concerne un procédé de production par PECVD d'un revêtement doté d'un motif sans autre étape de production. Le procédé proposé produit par dépôt direct sur une surface une macrostructure de type oeil de mouche. De plus, la macrostructure peut être modulée par une microstructure dont la texture de surface est dans une plage inférieure à la longueur d'onde. Par conséquent, on peut produire un revêtement protecteur antiréfléchissant qui comprend une couche de support constituée d'un matériau optiquement transparent qui, au moins sur un côté de la surface, présente des propriétés antiréfléchissantes pour les longueurs d'onde optiques du rayonnement incident sur la surface, ainsi que des structures de surface qui sont à la base de propriétés superhydrophobes de la surface.

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