Patent ID: 8414721

Claim:
A method of applying a coating film ( 63 ) on a face ( 108 ) of a lens ( 100 ), the method comprising: depositing the coating film ( 63 ) on the face ( 108 ) of the lens ( 100 ), an adhesive interface ( 46 ) being deposited between the coating film ( 63 ) and the lens ( 100 ); inflating a membrane ( 62 ) towards the lens ( 100 ), said membrane ( 62 ) comprising an inflatable portion ( 62 B) and a fixing portion ( 62 A); measuring a force exerted on the lens; prepositioning the lens by adjusting a distance (Z) between the lens ( 100 ) and the fixing portion ( 62 A) of the membrane ( 62 ), wherein the prepositioning is distinct from the inflation of the membrane ( 62 ) and is calculated individually for the lens to which the coating film is applied as a function of at least one characteristic of the lens ( 100 ); and adjusting a position of the prepositioned lens as a function of the measured force exerted on the lens by dynamically driving the position of the lens ( 100 ) simultaneously with inflation of the membrane ( 62 ), wherein the membrane ( 62 ) presses progressively on the coating film ( 62 ), a zone that the membrane ( 62 ) presses enlarging from a center of the lens ( 100 ) towards a periphery of the lens ( 100 ).