Light-Sensitive Coating for Sunglasses

 

In the 1960s, Institute scientists discovered photochromism, a reversible change in the color of materials due to exposure to light. Following up on this research, Prof. Valeri Krongauz developed a very active photochromic polymer that could be used for producing light-sensitive coating on plastic lenses.

 

 

Chromtech, a company in Kiryat Weizmann, was established to make use of Krongauz’s research. It manufactures light-sensitive materials used as coating for sunglasses that darken when exposed to bright light.