ryan said:
leds behind color domes are 10% brighter with the same color leds. The clear domes take away about 10-15% of the effectiveness. They also wanted to more mimic a full blue presence like in Europe were there is no confusion of red brake lights or turn signals.
You are going to have to back that up with some sort of study or science.... .. limiting the spectrum of light getting through can't make it brighter...
....everything I have read has indicated colored lenses are of such a broad spectrum that the color emitted by the LED is already narrower and therefore filtered little at all.....
Below is a major over-simplification of how a filter works. It blocks all light except the color it is basically. Colored LEDs a very narrow spectrum of color which is contained within the red filter... little difference if any, certainly not brighter. No light gets brighter when being filtered....
Broad input filterd with medium filter becomes medium output
Narrow input filterd with a medium filter stays narrow.....
You can think of it like sorting rocks with a screen....
Box 1 - a mix of 1" and 3" stones. Filtered by a 2" screen, the 1" rocks get through, the 3" don't.
Box 2 - just 1" stones. Filtered with a 2" screen all the 1" rocks get through. There was nothing over 2" so the "filter" does nothing.