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Gegenstand mit reflexionsmindernder Beschichtung und Verfahren zu dessen Herstellung

Article with reflection reducing coating, and method for producing the same
 
: Vergöhl, Michael; Rademacher, Daniel; Werber, O.; Bruns, S.; Neubert, T.; Weiss, P.

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Frontpage ()

DE 102012002927 A1: 20120214
German
Patent, Electronic Publication
Fraunhofer IST ()

Abstract
Article with reflection-reducing coating, comprises a substrate (5) and a coating disposed on the substrate, where the coating is multilayered and comprises an outer layer (1) made of a first material having a first refractive index and at least one second partial layer (2) made of a second material having a second refractive index. The outer layer is present in the form of a nano-laminate (6). The second refractive index is greater than the sum of first refractive index and 0.4, and the outer layer has the first refractive index of greater than 1.55 and a hardness of greater than 10 GPa. Article with reflection-reducing coating, comprises a substrate (5) and a coating disposed on the substrate, where the coating is multilayered and comprises an outer layer (1) having a first refractive index (n1) and at least one second partial layer (2) having a second refractive index (n2), which is adjacent to the outer layer, preferably the coating comprises at least one multi-layered outer layer and includes a first material having a first refractive index (n1) and a second material having a second refractive index (n2), where the outer layer is present in the form of a nano-laminate (6) made of the first and the second material. The second refractive index is greater than the sum of first refractive index and 0.4, and the outer layer has the first refractive index of greater than 1.55 and a hardness of greater than 10 GPa. An independent claim is also included for preparing the above mentioned article, comprising depositing at least two-layered coating on the substrate and depositing at least one second partial layer having the second refractive index on the outer layer having the first refractive index less than the second refractive index, where the deposition takes place by adopting physical gas phase deposition or chemical gas phase deposition

: http://publica.fraunhofer.de/documents/N-270925.html