Photo by Jessica Lewis on Unsplash
What is it about?
This article talks about dyes that are mainly used in the manufacture of spectacles that darken in sunlight. It covers how the dyes are designed, made and incorporated into products which change colour when exposed to daylight. It also gives a little history behind the dyes and where they might be used in future.
Why is it important?
Photochromic dyes form the basis for a multi-million dollar industry spread throughout the globe. They are essential in making lenses for spectacles that automatically darken when the wearer is in strong daylight, helping them see more comfortably. A lot of expertise goes into the chemistry of producing the dyes as well as in applying them in the right way. Scientists around the world have also been working on trying to develop new ways of using them which could revolutionise computing and consumer electronics.
The following have contributed to this page: Dr Andrew D Towns
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