: why is the top of my passenger headlight blue/purple??



Talyon
08-10-12, 01:15 AM
95883

FuzzyLogic
08-10-12, 02:17 AM
It's a chromatic aberration caused by the projection lens. In essence, different wavelengths of light are emitted from a lens at slightly different angles. It's how a prism separates light into its component colors, but in this case, it's happening on a very small scale. If you look closely at your picture, you can see the entire rainbow in there. Learn more:

http://upload.wikimedia.org/wikipedia/en/4/47/Lens6a.svg

http://en.wikipedia.org/wiki/Chromatic_aberration

Dan_Gurney
08-11-12, 02:59 AM
^ what he said...