Just saw one of these new in car speed cameras on Marmion Ave and got me wondering. Knowing what I do from my profession, EDMs (electronic distance measurements) distort due to refraction through glass. Also, they have to use a type of reflectorless EDM (reflects off any surface) but you can get bounce back off glass unless you are perfectly perpendicular to the glass pane?

Does anyone know anymore about it? Do they use refractorless glass?

Just curious as it could lead to some interesting arguments in court.


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