Anti-Reflection Coating
Overview of AR Coating

Anti-reflective coatings are part of a larger family of �thin film� coating which can be deposited on a lens or other transparent media by a process of vacuum deposition. You would not want to buy a multiple lens system, like those found in microscopes, telescopes, binoculars or cameras, without an excellent anti-reflective coating applied. Each lens in the instrument would reduce the light transmitted to the eye in succession. Thus, the object being viewed would appear more dimly lit or less bright than it would with AR coating. Multiple lens systems with AR coatings have been used for years by manufacturers of quality cameras. Without a good AR coating, �ghost� images caused by internal reflections, can appear and ruin your photographs.

General Uses of AR Coated Lenses:

Let�s now direct our attention to ophthalmic optics.

Although the reflections most obvious to the observer are seen from the front surface of the lens, half of the reflections seen by the observer standing in front of the person wearing the glasses are, in fact, caused by the rear surface of the lens.