US Patent 7549180 Optical structure for eyes

An optical structure for eye, for example, ski goggles, has an outer lens and an inner lens disposed in parallel. A peripheral sealing is provided between and along the entire circumferential edges and their surroundings between the lenses. Between the lenses is a room defined by the rear face of the outer lens and the front face of the inner lens and an inorganic film is provided on the rear face of the outer lens and/or the front face of the inner lens. The inorganic film is prevented from peeling of due to external factors.