Scratch resistant plastic lenses
Three-step plasma deposition process coats plastic lenses with strongly adhering scratch-resistant polymer film.
Engineering topics
Publications and source records attributed to Kubacki, R. M..
Three-step plasma deposition process coats plastic lenses with strongly adhering scratch-resistant polymer film.
A low temperature plasma polymerization process is described for applying an optical plastic substrate, such as a polymethyl methacrylate lens, with a single layer abrasive resistant coating to improve the durability of the plastic.
Tough, durable coatings of boron triflouride can be deposited on plastic optical components to protect them from destructive effects of abrasion, scratching, and environment. Coating material can be applied simultaneously with organic polymers, using plasma glow-discharge methods, or it can be used as base material for other coatings to increase adhesion.
Plastic surfaces can be improved physically and optically by treating them with a plasma of boron trifluoride. The trifluoride can be the sole reactant or be part of a mixture also containing an organic monomeric substance such as perfluorobutene-2 or an organosilane. The boron trifluoride-containing coating can also serve as an intermediate coating between the plastic surface and a plasma deposited organic polymer.
Low-temperature plasma polymerized coating improves light transmission through plastic lenses.