Plastic lens with antireflective film and capable of easy removal of stain

Abstract

Abstract PURPOSE:To easily remove a stain by forming ultra - thin film of an organosilicone compd. on an antireflective film provided on the surface of a plastic lens. CONSTITUTION:The ultra - thin film having <=100Angstrom thickness and composed of the organosilicone compd. is formed on the anti - reflective film provided on the surface of the plastic lens. Said organosilicone compd. comprises the compd. having an alkyl, a phenyl or a polyfluoroalkyl group as the substituent of the side chain of the compd. and preferably a polyorganosiloxane compd. having such as 1-20C perfluoroalkyl group and consisting of a two or a three dimensional structure. By applying the titled lens, the lens having a water and an oil repellent properties is obtd., thereby enabling the removal of a water mark due to a water drop adhered on the lens surface and of an oil stain with an ease, and also enabling the removal of a dust due to a good slip on the lens surface. In the titled lens, as the lens surface is not necessary to strongly wipe, the antireflective film is hardly injured, thereby preventing the deteriora tion and ensuring the good durability.

Inventors

• 👤 Takao Hayashi
• 👤 孝雄 林
• 👤 Katsuaki Aikawa
• 👤 相川　勝明

Bibliographic Details