Anti-Reflection Coating
Technical Aspects

A microscopic view of a typical AR coated surface shows very porous and bumpy areas in which oils and debris can accumulate on the last hard AR layer. Lenses seem dirty, oily and smudgy as a result of this porosity. A significant enhancement to the AR coating process is the application of an additional layer to fill in this porous material to provide a smooth, slick surface. This aids in abrasion resistance and makes the lenses easier to clean than any uncoated lenses. After the hydrophobic coating application the lenses are annealed for a tight chemical bond. As many of you know, AR coating with a hydrophobic coat make the lenses much easier to care for and as with AR coating�the hydrophobic coating will continue to be improved.

Microscopic view of an AR coated lens
without the outer hydrophbic layer
exhibits a porous and bumpy surface.

 

Microscopic view of an AR coated lens
after the outer hydrophobic layer has
been applied exhibits a smooth, slick
surface.