External part comprising a coating of interference layers deposited on a face made of a material comprising at least 50% by mass of aluminium
AssigneeThe Swatch Group Research and Development Ltd
InventorsCamille HALLER, Loïc CURCHOD, Marie BAUDOZ, Giovanni POLY
Life of this patent
Estimating the term…
Abstract
An external part (10) used in horology, jewellery or fine jewellery, characterised in that it includes a substrate (100) having a support face (101) made of a material with at least 50% by mass of aluminium, on which is deposited a semi-transparent thin-film dielectric coating (110) having at least two layers, including a base layer (111) made of Al2O3 overlying the support face (101), and a terminal layer (112) made of TiO2.
Claims8
An external part (10) used in horology, jewellery or fine jewellery, characterised in that it comprises a substrate (100) having a support face (101) made of a material comprising at least 50% by mass of aluminium, on which is deposited a semi-transparent thin-film dielectric coating (110) comprising at least two layers, including a base layer (111) made of Al2O3 overlying the support face (101), and a terminal layer (112) made of TiO2.
Dependencies are inferred from the claim text.