Smart Sunglasses

"Many readers have submitted this story of chemists at the University of Washington who have made glasses with lenses that can be transparent or dark, in shades of yellow, green, or purple, all at the push of a button. The glasses will let the wearer instantly change the color of their lenses to virtually any hue by tuning a tiny electronic knob in the frame."

Comments

Here are the glasses

[suv4x4]

There we go, on top.

With glasses like those, you can be the hit of every nerd party, I can hardly wait.

Re:how about polarization

[wass]

If you're doing this often enough, as you say, why don't you buy a linear polarizer? Here is a relatively cheap one. Much better ones can be had for more money. You can also use circular polarizing films to block reflected glares.

Photocromatic glass

[baomike]

Really cool glasses do it without being told. Like mine have for the last 40 years.
Only one colour , true, but "look ma , no hands".

Re:Photocromatic glass

[Fred Ferrigno]

I have them now. The practical effect is that my brain and eyes actually adjust to the glasses faster than the glasses adjust to the environment. I'm never really conscious of whether the glasses are light or dark. It's weird because every now and again someone asks me why I'm wearing sunglasses and I have no idea what they're talking about.

Re:Motorcycles

[lisaparratt]

The Schuberth Concept and C2 range have a secondary inner sun visor that you can flip down with a slider on the outside of the helmet:

http://schuberth.klaxmedia.de/en/concept.html
http://schuberth.klaxmedia.de/en/c2.html

They're awesome - I've had my Concept about 4.5 years, and I'm definitely getting another when I replace it this summer.