RE: It’s coming17 Jan 2019 07:11
vauch - whilst there is something clever about the Vanadium oxide coating on the glass it is not controllable in that you can turn it on or off. It is controllable in the sense that you may be able to tune the transition temperature point, eg via doping or, as in a blue LED, via internal crystal strain, but once the stuff is down it simply does whatever it does without having to have any control, power supply, etc.