Talk:Electrochromism

Physics Low‑importance

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"human obstacles"?

What exactly does this mean?

   "ICE 3 high speed trains use electrochromatic glass panels between the passenger compartment and the driver's cabin. The standard mode is clear, and can be switched by the driver to frosted/translucent, mainly to conceal "unwanted sights" from passengers' view, for example in the case of (human) obstacles."

The only ways I can really interpret this is that the glass is A.) to conceal the fact that there are protesters on the track blocking the train, or more likely B.) to keep passengers from seeing the man lying on the track waiting to commit (very messy) suicide via 200mph train. It would nice if this was phrased more clearly. Personally, I think it more likely the glass is just to give the driver some privacy to drink a little booze or take a nap ;) .45Colt 17:10, 5 August 2015 (UTC)[reply]

It was changed to an also unreferenced "unsightly collisions" by Andrew Lorimer on 2019 August 22‎ at 03:05. I requested clarification from him. WesT (talk) 22:28, 9 February 2022 (UTC)[reply]

Reverse with lack of voltage or requires voltage to reverse?

In the lede it says, "As the color change is persistent and energy need only be applied to effect a change..."

Implying dropping the voltage leaves the opacity alone.

But in the section Working principle of electrochromic windows, it says, "Applying a high voltage (4 V or more) will push lithium-ions into the electrochromic layer, deactivating the electrochromic material. The window is fully transparent now. By applying a lower voltage (2.5 V for example) the concentration of Li-ions in the electrochromic layer decreases, thus activating (N)IR-active tungsten oxide."

Implying a reduced voltage reverses the opacity.

Which is it??

WesT (talk) 22:33, 9 February 2022 (UTC)[reply]

Effect on electronic communication signals

Mention if besides ultraviolet, also GPS and cellular and other radio signals might be blocked. Jidanni (talk) 11:06, 12 January 2023 (UTC)[reply]