Satisloh Ag

Satis Vacuum Industries Vertriebs Ag

Satisloh Photonics Ag

Frank Breme

Marc Savoie

Marc Peter

Edward McPherson

Franco Moreni

Antonio Corea

Giuseppe Viscomi

Giuseppe Di Paola

Guiseppe Viscomi

Arturo Colautti

Laurent Jordi

Stefan Schäfer

Michael Witzany

Alex Wetter

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 lens blank is proposed, having a first face, an opposite, second face, and an edge inbetween, the first face possessing a final curvature and being coated, in this order, with an antireflection coating, a top coating, and a temporary grip coating. The antireflection coating has a stack of alternating antireflection layers with an outermost layer, whereas the top coating is selected from a group including hydrophobic, oleophobic and dirt repelling coatings. The temporary grip coating and the outermost layer of the antireflection coating are made from one and the same coating material. In this way the temporary grip coating effectively serves to provide sufficient adhesion to the blocking material on the block piece in the processing steps, and can easily be removed from the processed lens upon deblocking without degrading the repelling properties of the top coating.

Lens blank having a temporary grip coating for a method for manufacturing spectacle lenses according to a prescription

A block piece for holding a spectacle lens blank has a basic body with a workpiece mounting face portion against which the workpiece can be blocked with a blocking material, and a clamping portion via which the blocked workpiece can be fixed in a machine/apparatus for processing it. The basic body is made substantially of a material having a defined low water absorption and/or is sealed to at least reduce outgassing of water moisture under vacuum conditions, so that the block piece can be used also in vacuum coating processes. Alternatively or in addition, the clamping portion is constructed to be clamped by forces directed essentially perpendicular to the radial direction to cancel out each other and not deform the basic body, and/or the workpiece mounting face portion is provided with a predetermined amount of prism.

Block piece for holding an optical workpiece, in particular a spectacle lens, for processing thereof, and method for manufacturing spectacle lenses according to a prescription

A method for manufacturing spectacle lenses includes the steps of: providing a lets blank having a first face that possesses a final curvature and is coated with an antireflection coating as an outer layer, a second face, and an edge; blocking with a blocking material the lens blank with its first face on a block piece; processing the blocked lens blank on the second face and to obtain a processed lens; deblocking the processed lens from the block piece; and applying on top of the first face antireflection coating of the processed lens a top coating selected from at least one of hydrophobic, oleophobic or dust repelling coatings.

Method for manufacturing spectacle lenses according to a prescription

A process and apparatus for applying an optical coating to a substrate, wherein a transition layer, which is used to match mechanical properties of a substrateto mechanical properties of a layer systemto be applied upon the transition layer, is deposited on a front surfaceof the substrate. For this purpose, during a sputtering process carried out in a vacuum chamber, reaction productsare incorporated at least virtually exclusively in the transition layeron the substrate. This prevents other surfaces of the vacuum chamberand the rear sideof the substratefrom being contaminated with the reaction productsand/or their precursors.

Process and apparatus for applying optical coatings

A method and apparatus for producing an optically effective system of layers on a substrate, such as a lens for use in an optical device. A plasma supported sputter deposition process is employed which, for the purpose of reducing damage to the rear side () first applies a protective layer () to the rear side and then applies a system of layers () on the front side () of the substrate (). The apparatus includes an evacuable sputter chamber and a substrate holder () with receiving elements () for the substrates, and the receiving elements are mounted to permit rotation about two mutually perpendicular axes.

Growing community of inventors

Hausen am Albis, Switzerland

Frank Breme