Satisloh Ag

Giuseppe Viscomi

Frank Breme

Marc Peter

Franco Moreni

Antonio Corea

Giuseppe Di Paola

Arturo Colautti

Michael Witzany

A box coating apparatus for coating of substrates comprises a vacuum chamber which contains an evaporation source. A substrate holder is disposed vis-&#xe0;-vis to the evaporation source so that evaporated material can impinge on substrates held by the substrate holder. Besides the evaporation source and the substrate holder, at least one further functional component is provided, namely a Meissner trap and/or a high vacuum valve mechanism, to which a shield arrangement is assigned to prevent evaporated material from impinging on said component. This shield arrangement has a shutter portion which can be moved from a closed shielding position in which it covers a passageway through the shield arrangement and serves to shield said component, to an open pumping position in which it substantially clears the passageway to allow essentially free passage for gases and vapor, and vice versa.

Box coating apparatus for vacuum coating of substrates, in particular spectacle lenses

A box coating apparatus for vacuum coating of substrates has a vacuum chamber containing an evaporation source and a substrate holder formed as a dome related to the evaporation source and rotatable about an axis. A masking arrangement is located in between for partially shadowing the substrates on the substrate holder relative to the evaporation source. The masking arrangement comprises a fixed masking portion stationary in the vacuum chamber, and a plurality of gradient sector portions carrying gradient shields assigned to the substrates on the substrate holder, for forming a gradient mask. The gradient sector portions can be rotated about the axis between a gradient mask open position where they are stored behind the fixed masking portion, and a gradient mask closed position where they are spread like a fan between the evaporation source and the substrate holder.

Vacuum coating apparatus

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Senago, Italy

Giuseppe Viscomi