alt Hacker NewsAlong the same lines… where is the proof that as the unit ages it doesn’t leave the magic 220nm range?
It is complete nonsense to point this at people.
Along the same lines… where is the proof that as the unit ages it doesn’t leave the magic 220nm range?
It is complete nonsense to point this at people.
Here's a paper: https://www.jstage.jst.go.jp/article/lsj/50/7/50_394/_pdf
This is a study of the Ushio Care222 unit, but its underlying physics is the same as any other KrCl excimer lamp, so its pretty implausible for other KrCl lamps to exhibit spectral drift when this one doesn't.
The spectrum does change a bit over time--it actually gets less dangerous. But it's a very slight difference.