Although the technology of light-shielding lenses is very superior, we have received comments that the colors are "too strong" or "too dark" because of the medical aspect.
Therefore, while using the same technology, we have made the lenses in colors that can be used without resistance by customers who do not use them for medical purposes.
It increases the contrast of colors, so it can increase the visibility of signal colors and even improve vision with the power of color.