State-of-the-art technology for strong performance
Fast dark. Fast clear.
PhotoFusion® lenses adapt quickly to changing light conditions. The high- and mid-index lenses react up to 2 times faster* from dark to clear and up to 20% faster* from clear to dark than previous photochromic lenses by ZEISS.
- Lenses darken to 15% T** in 15–30 seconds*
- Lenses fade back to 70% T** in 5–10 minutes*
Indoors the PhotoFusion® lenses are very clear whereas outside they turn very dark in the sunlight.
- Clear state: 92% T**
- dark state: 11% T**
T = transmission based on AR coated lenses.
* Source: Global consumer study for Carl Zeiss Vision International July 2010, based on national representative samples in US, Brazil, Germany, Italy, UK, Australia and China.
** Average performance for 1.67, 1.6 and polycarbonate self-tinting lenses. Performance will vary according to material, temperature and light conditions.