BROWN - Contrast performance Brown lenses provide natural, stress-free vision in changing conditions. They improve contrast and bring out details, thereby increasing three dimensional perception. These lenses are recommended for winter sports, mountaineering, outdoor activities, and on the water. Brown lenses are also filter blue light. • • • • •
Recommended for sport activities. Relaxes the eye. Improves contrasts. Reduces blue light while maintaining true colour balance. 100% protection from UVA, UVB & UVC rays.
GREEN - Close to the sensitivity curvature of the human eye The color green is unique in that it filters out the colors that the eye has the greatest difficulty processing. Green lenses therefore improve vision where the eye is weakest. They are recommended for extreme conditions and for extended wear. • • • • •
Unaltered natural colours perception. Stimulating and comfortable tint. Eye vision matched. Blue light filter. 100% protection from UVA, UVB & UVC rays.
B - POLARIZATION Polarized lenses are superior to ordinary tints with benefits that include: • Eliminate Glare (reflected light) • Greater eye comfort • True color perception • Unmatched clarity of vision • Superior abrasion resistance
C - COATINGS Mirror coating is a vacuum deposition process obtained through the sublimation of different refractive index materials. Mirror series includes: • Flash mirrors deposit a thin layer of rare materials and minerals, allowing lower light transmittance in a subtle mirrored look. • Bi-layer mirrors absorb light creating a solid, consistent mirror. • Multi-layer mirrors deposits three to eleven layers of dielectrics materials creating shiny, bright effects with low absorption light.
LENS TREATMENT A - FILTERING UV AND VISIBLE LIGHT Filtration of visible light is divided into categories from 0 to 4. The level of filtration must match the environment and the ambient light. In very sunny conditions, Category 3 lenses are recommended. Category 4 lenses are recommended only for extreme sunlight. For less sunlight, Category 1 or 2, or even category 0 lenses are recommended.
D - ANTI-REFLECTIVE
In any case, the lenses must filter all ultraviolet radiation (wavelenghts below 400 nm). CDS UV400 lenses guarantee complete filtration of ultraviolet radiation.
An anti-reflection (AR) coating is a type of optical coating applied to the surface of lenses and other optical devices to reduce reflection. This improves the efficiency of the system since less light is lost.