Electrochromic Visor Aids Motorcyclists

opticsorg writes "A team from Uppsala University and the firm Chromogenics Sweden AB have developed a flexible electrochromic foil and integrated it into the visor of a motorcycle helmet. The result is a visor that the rider can electronically switch between dark and transparent states. Applying a voltage of about 1V to the initially transparent visor causes it to darken in a matter of seconds. When the voltage is turned off, the visor keeps its properties, while applying a reverse voltage makes it revert to its natural lightly tinted state."

Comments

Something to say when I know little about subject

[annisette]

More for the protection of motercyclist I say, there are a couple (of many) neat less well known motorcycles: The Royal Enfield a copy of the triumph 500 made in India since the late 40's and the Russian copy of the 650cc BMW circa mid fiftys called the URAL. There is a military version of the URAL with a sidecar with positive rear traction,(availaable in the U.S.) that is both rear wheels spinning. Well, I did not know the science related to this article so now you know about the Enfield and URAL.