A Basic Introduction to
Lens Technology

There are six factors to consider when looking at lenses for sunglasses and goggles

UV Rating

The highest UV protection rating available is UV400, which has 100% protection against UVA and UVB rays. (We see this as a non-negotiable in all VALLON sunglasses and ski goggles).

 
Category>>

Category

You will likely have heard of Cat. 3  or Cat. 4 lenses. These categories are determined by a metric called VLT (or Visible Light Transmission), which indicates how much light can pass through.

<<UV Rating
Clarity>>

Clarity

Clarity is measured by ABBE value. The ABBE value measures the dispersion, (or chromatic aberration) in the material. In summary, the higher the ABBE value the clearer the lens.

<<Category
Materials>>

Materials

Not all lens materials are created equal. Here are a few examples of popular lens materials.

<<Clarity
Coatings>>

Coatings

Lens coatings serve a variety of purposes, and are often used when creating eyewear with a specific sport or activity in mind.

<<Materials
Filters>>

Filters

The most popular filter option is polarization. Truth is, adding a polarization filter isn’t always better. To learn more, check out the VALLON Guide to Polarized Lenses.

<<Coatings
 

Your cart is empty.