Reactive lenses and switchable glass have existed for quite a while, but not quite like this:
(No video? Here’s a link to it).
Taking the best characteristics of both, CTRL Eyewear can change automatically and instantly, and is already being trialled by Trek team racers such as Andy Schleck. There’s more information on CTRL Eyewear’s rather animation/video/image heavy website, and they’re currently running a second Indiegogo campaign for brave early adopters.
They only seem to be targeting roadies so far, but how long before it’s incorporated into the most enduro possible cyber-goggles? If it works half as well as it appears to, I could see it being useful. Personally, my usual approach to trails diving in and out of the woods is just to squint in the sunny bits and suffer less in the shaded, rooty parts, but plenty of people I ride with do the opposite.
CTRL say the glasses have a 70 hour battery life and charge from a micro-USB connector. What do you reckon? Useful application of new technology, or is having one more gadget to charge just a massive pain in the bum?