TAC Polarized Lenses

TAC (Tri Acetate Cellulose) lenses are a type of polarized lens that has become a preferred choice for sunglasses due to its advanced optical and mechanical properties. The cellulose triacetate material is characterized by a molecular structure that allows the incorporation of multiple layers of protection and functionality.

One of the most notable features of TAC lenses is their ability to polarize light. Polarization is achieved by inserting a special film between the layers of the lens. This film acts as a filter that blocks light reflected from horizontal surfaces, such as water, snow, and roads, thereby eliminating glare. This process significantly improves visual perception, providing clearer vision and reducing eye fatigue.

In terms of weight, TAC lenses are remarkably light . This is due to the nature of cellulose triacetate, which is a low density material. The lightness of the lenses contributes to user comfort, allowing prolonged use without causing discomfort to the nose or ears. This aspect is crucial in the design of sunglasses for outdoor and sports activities, where comfort is essential.

Scratch resistance is another key advantage of TAC lenses. These lenses are coated with a hard coating that protects against surface damage. This coating not only extends the life of the lenses, but also maintains their optical clarity. Scratch resistance is especially important in conditions where glasses are exposed to abrasive particles such as sand and dust.

The UV protection offered by TAC lenses is comprehensive. These lenses block 100% of UVA and UVB rays, protecting the user's eyes from the harmful effects of ultraviolet radiation. This protection is crucial for preventing long-term eye conditions such as cataracts and macular degeneration.

In terms of optical clarity, TAC lenses are designed to provide sharp and precise vision . The cellulose triacetate material, combined with polarization technology, ensures uniform and distortion-free light transmission. This is particularly beneficial in activities that require accurate visual perception, such as driving, fishing, and skiing.

Although TAC lenses are not as impact resistant as polycarbonate lenses, they offer adequate resistance for daily use. Their ability to withstand minor impacts makes them a viable option for recreational activities, although for more demanding applications, materials with greater resistance are preferred.

Additionally, many TAC lenses include anti-reflective treatments that minimize internal reflections. These treatments improve visual quality by reducing reflections that can interfere with vision, especially in bright light conditions or when looking through reflective surfaces.

In summary, TAC lenses are highly valued in the optical industry for their ability to provide effective polarization, lightness, scratch resistance, UV protection, optical clarity and adequate impact resistance. These technical characteristics make them ideal for a wide range of applications, from everyday use to sports and outdoor activities.