Method for the addition of a functional coating on an optical surface of a spectacle lens suitable to be arranged in a spectacle frame

A method is proposed for the addition of a functional coating by depositing said functional coating on an optical surface of a spectacle lens suitable to be 5 arranged in a spectacle frame. The spectacle lens has already been put into the form of a given spectacle frame in a step prior to said method. Either the spectacle lens: is yet to be mounted in a spectacle frame; or is of such a shape that it is suitable to be immediately arranged in a spectacle frame; or which has been dismounted from a frame in a prior step to said method. The 10 method comprising the following successive steps: a first set of rules is provided suitable to determine if the features of an optical surface chosen within a list of features are compatible with a functional coating chosen within a list of functional coatings, and a second set of rules is provided to determine a modified optical surface if features of an optical surface and a functional 15 coating are not compatible. The spectacle lens is provided. A functional coating to be added on said optical surface is chosen from the list of functional coatings. The quality of the optical surface is analysed and the features of the optical surface are identified. From the first set of rules, it is determined (118) if the features of the optical surface and the chosen functional coating are 20 compatible. If the optical surface has features compatible with the chosen functional coating, the chosen functional coating is deposited (120) on the optical surface. If the optical surface has features not compatible with the chosen functional coating, a modified optical surface which is compatible with the chosen functional coating determined from the second set of rules is 25 deposited (120) on the modified optical surface. The list of functional coatings consists of: an anti-soiling coating, an anti-reflective coating, an anti-dust coating, an anti-fog coating, a water repellent coating, an anti-scratch coating, an impact-resistant coating, an interferential filter, a tinted coating, a mirror coating, a photochromic coating, a polarized coating, a filter coating, and a 30 combination of any of preceding compatible coatings. The features of an optical surface is chosen within the list consisting of: chemical composition of the optical surface, nature of the optical surface, and type of material on the surface of the optical surface wherein the type of material is selected within the list consisting of metal oxide, silica, varnish.