Patent ID: 7476415

Claim:
A process for applying a coated or uncoated film onto at least one surface of a lens substrate comprising: (a) providing a lens substrate having main surfaces; (b) providing a coated or uncoated film; (c) forming, on either a surface of the coated or uncoated film or one of the said surfaces of the lens substrate, a layer of a dry latex; (d) depositing at least one drop of a water-based activating liquid on either the said main surface of the lens substrate, a surface of the coated or uncoated film or an exposed surface of the dry latex layer; (e) moving relatively to each other the coated or uncoated film and the lens substrate and applying a sufficient force to the coated or uncoated film to spread the water-based activating liquid and form a thin pellicule of the water-based activating liquid between the dry latex layer and either the lens substrate or the coated or uncoated film; (f) heating the thin pellicule of water-based activating liquid and the dry latex layer; (g) releasing the applied force; and (h) recovering the lens substrate with the coated or uncoated film adhered to the lens substrate main surface.