You keep throwing conjectures out there based on somewhat head scratching assumptions. And you’re doing it again. I am not an electrical engineer, but I have worked in the industry long enough to know the electronic definition of filter is not the optical definition and often optical engineers do model things as filters for ease. I write engineering reports for a living. I do the english part of the engineering because they’re usually pretty bad at it.

When I said that I am in agreement with everything you said except referring to the phospher as “not a filter” I was fully aware of what the coating was doing. I concurred with that. And you said it was nowhere close to reality. Which is truly incoherent.

What I’m saying you’re muddying things by saying its not a filter. This is the sort of thing the electrical and optical engineers would say during meetings and the project managers would get annoyed because they’d both be talking past each other.

So like knowing you’re an electrical engineer here isn’t surprising. Engineers (and especially electrical engineers in my experience, probably the lead exposure) in general are abysmally bad writers, poor communicators and often overstate their disagreements by being unaware of their audience. Its why I’m called in to clean up their messes.