Hybrid film, antireflection film comprising it, optical product, and method for restoring the defogging property of hybrid film

摘要

The present invention has the object to provide a hybrid film having good abrasion-resistant and defogging properties, an antireflection film comprising it, an optical product, and a method for restoring the defogging property of the hybrid film. The above object is achieved by means of a hybrid film having a defogging property, which is obtained through vapor deposition of an organic compound having a hydrophilic group and a reactive group along with silicon dioxide or with silicon dioxide and aluminium oxide; an antireflection film to be formed on a substrate having the hybrid film as the outermost layer opposite to the substrate; an optical product comprising a plastic substrate and the antireflection film having the hybrid film; and a method for restoring the defogging property of the hybrid film of the optical product, which comprises washing of the hybrid film.