Importance

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Abstract

A compression process for fabricating a substantially finished coated/layered lens for eyeglasses with a thermoplastic lens preform, with the lens having surfaces for correcting vision. The process comprised suitably placing on at least one of a pair of molds with molding surfaces conforming to the surfaces of the finished lens a thermoplastic film-layer/coating or multiple layers or coatings, each having a given thickness and predetermined characteristics and/or properties desired in the finished lens. The lens preform is then placed on the thermoplastic film-layer/coating; and heating and molding in situ of the film-layer/coating with the lens preform is then conducted while the lens preform is under compressive forces of the compression process until a generally predetermined lens thickness is achieved. Then the molds are first cooled and opened so as to remove the substantially finished lens with the film-layer/coating simultaneously molded/coated thereon, whereby a finished molded prescription eyeglass lens is formed with the molded thermoplastic film-layer/coating molded thereto on one or both sides thereof during the compression process.

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First Claim