In article , C.H.Ling-Accura <chling@xxxxxxxxxxxxx> writes
On the other hand I can't agree with the flare and ghosts, if you wear
glasses you will know, a non coated glasses will have very high flare and
ghosts in severe backlight situation and it is only one element, right?
Last time I checked, even spectacles had two surfaces! :-)
Sure, if neither is coated then you will get problems, but that is just
like comparing a coated to a completely uncoated lens.
Part of your own description of the problem with uncoated spectacles
indicates its source. To produce a ghost scene image on a single
element lens requires reflection from BOTH surfaces. Eliminate
reflection at either surface and the ghost scene image goes away.
Reflection from only one surface means you get a ghost image of your
eye, not the scene.
--
Kennedy
Yes, Socrates himself is particularly missed;
A lovely little thinker, but a bugger when he's pissed.
Python Philosophers
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