Hard coating or scratch resistant coating provide lenses with durability and increased longevity. A high quality thermally cured hard coat provides the best scratch resistance and provides for the most durable ingredient for an AR coating application. Plastic lens materials scratch easily than glass materials, and therefore benefit greatly with application of a durable hard coat.
Hard coatings provides myriad advantages over traditional soft coatings.
Hard coated films are developed using a plasma deposition process that provides multiple benefits as compare to soft coatings. The plasma deposition process is tightly controlled using a computer, which allows for even layering, high environmental aptitude, and improved performance. For instance, not only is the transmittance of a hard coating more consistent as a function of wavelength, but it is also generally superior to the transmittance of a soft coating.