Essilor International

David Thornhill

Mark Mildebrath

A pre-fabricated assemblies and methods of use for coating substrates are described. The pre-fabricated assembly includes at least two layers in a stack, each layer includes at least one raw material. The raw material in each layer may be a dielectric material. One type of stack has one outer layer as an exposed layer. One type of stack has an exposed portion with each layer, and a portion of all layers is exposed. In use, a stack in a pre-fabricated assembly is positioned in a vacuum chamber system and energy is delivered sequentially to the exposed layer, removing at least a portion of each exposed layer. Each layer becomes an exposed layer and is deposited on the substrate in a sequential manner. The pre-assembled raw material stack is used to fabricate a multi-layered coating, such as a multi-layered coating for an optical or ophthalmic article.

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Dallas, TX, United States of America

David Thornhill