Quote:
Originally Posted by GuidoK
This is a commonly made mistake, but very logical in relation to headlight output regulations. As I said, the regulation regarding washers is to prevent diffracting light to the oncoming traffic (at dipped beam, full beam falls outside of this regulation as there is never diffracted light from full beam on oncoming traffic). That is a result of the complete light output of the headlight at dipped beam. If you concentrate your beam better, you can get a higher luminous intensity at the area that you want without increasing the # of lumen (being the total output). Thats what they're trying to create with led headlights and laser headlights. Getting a higher luminous intensity without a high total output (# of lumen) of the headlight.
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That's why the units of measurement and photometric points are being revised as well. The reason why they've allowed the Headlamp cleaning system requirement in combination with AFSi (intelligent) to be removed, is that it further dips the passing beam in response to traffic. I also believe this doesn't apply to vertical mounting positions >1200mm.