Types and Function of lenses used by Ray ban Sunglasses

Info from 'Ray ban Catalogue 1997'

• RAY BAN B-15 BROWN LENS - Filter out a great deal of blue light to improve contrast and sharpen details.

• RAY BAN B-20 CHROMAX LENS- Pops critical driving colors; red, amber and green while reducing blue light to cut through road haze.

• RAY BAN CHANGEABLE BROWN LENS- Adjust color and darkness of lens to meet changing glare conditions.

• RAY BAN DIAMOND HARD LENS- Scratch protection system resist abrasion and sheds water easily due to amorphous diamond coating permanently bonded to the lens.

• RAY BAN G-15 GRAY LENS- 'Natural Vision' with true color. Uniform absorption of colour throughout the spectrum.

• RAY BAN G-15 MIRRORED LENS- A choice of mirrored coatings on the popular G-15.

• RAY BAN G-15 XLT GRAY LENS - Combines optical features of the G-15 lens with lightweight comfort.

• RAY BAN G-15 XLT MIRRORED LENS- A choice of mirrored coatings on the lightweight G-15 XLT lens.

• RAY BAN G-31 FULL MIRROR LENS- Controls strong reflected glare with extra dense mirrored coating.

• RAY BAN GRAY POLYCARBONATE LENS- Provides characteristics of a neutral lens in the lightweight comfort of polycarbonate.

• RAY BAN NC-1 GRAY LENS- Smoke gray neutral constant density lens.

• RAY BAN NC-1 MIRROR LENS- A mirror coating on the NC1 lens.

• RAY BAN POLYSPHERE LENS- Provide unrestricted areas of high visual definition and close to face fit. Constructed of optical quality polycarbonate, the lens provide superior optics and lightweight comfort.