Optical Lens Coatings

Lens coatings available at three rivers optical example anti reflective treatment help extend the life of eyeglass lenses and feature several benefits.

Optical lens coatings. However this approximation is still valid due to the thinness of the coatings. Anti reflection coatings mgf2 bbar 400 750nm v coat majestic optical coating offers various types of anti reflective thin film optical coatings we provide three types of coatings right now but if you have any custom applications that you don t see here please contact us we will be able to accomodate your order. The exiting ray in figure 3 will be parallel to the incident ray because n 1 n 4 optical coatings on curved surfaces are not truly plane parallel structures due to the curvature of the optic. Anti fog coatings can be applied to plastic polycarbonate and other spectacle lenses including high index lenses and transitions photochromic lenses.

Adding lens coating has countless benefits from increased lens durability to prevention of eye strain and other common conditions. If three ar coated lenses with a b coating r avg 0 5 per surface are used instead the total loss of incident light due to surface reflections is 3. It can help with glare reflections halos around light and make for a nicer look. Anti reflective coatings reduce glare by allowing more light to pass through the lens and reflecting less light off the surface.

View custom optical lens coatings for information. The use of ar coated optics. One type of optical coating is an antireflection coating which reduces unwanted reflections from surfaces and is commonly used on spectacle and photographic lenses. Ask your optician about pricing and availability.

1 the law of reflection states that the angle of a reflected ray with respect to the surface normal is of equal. There are almost as many coatings as there are lenses. The simplest ar coating used is λ 4 mgf 2 centered at 550nm with an index of refraction of 1 38 at 550nm. This is true whether you wear single vision bifocal or progressive lenses.

An optical coating is one or more thin layers of material deposited on an optical component such as a lens or mirror which alters the way in which the optic reflects and transmits light. The coating is applied to the lenses before they are cut to fit into your frame at the optical lab. For example if three uncoated lenses are being used in series this 4 loss occurs at each of the six optical surfaces. If you are thinking about purchasing new eyeglasses here are lens coatings and treatments you should consider.