The REVO style has a light transmittance of 90%, making it relatively transparent during the day and suitable for use at night. This is not a highly shaded style, you can clearly see your eyes. The lenses are very transparent at first glance and need to be installed on the helmet to reveal the color.
Principle of Photochromic Lenses
1. UV-Triggered Tinting: The lens contains light-sensitive materials like silver halide or spiropyran-based compounds, which undergo reversible chemical reactions when exposed to UV light. This causes the lens to darken, blocking intense light and absorbing UV radiation.
2. Transparency Restoration: In low or no UV conditions (e.g., indoors), the chemical structure reverts to its original state, restoring transparency for clear vision.
