Patent ID: 8016468

Claim:
A signal indicator lamp assembly ( 10 ) for a vehicle ( 14 ) comprising: a LED assembly ( 16 ) that emits electromagnetic radiation ( 20 ) when operating, said electromagnetic radiation ( 20 ) comprising at least a first wavelength ( 31 ) and a second wavelength ( 39 ); a collimating optic ( 18 ) positioned forwardly of said LED assembly ( 16 ) for providing substantially parallel rays of said emitted first and second wavelengths ( 31 , 39 ); a second optic ( 22 ) positioned forwardly of said collimating optic ( 18 ), said second optic ( 22 ) having a first planar surface ( 33 ) facing said collimating optic ( 18 ) and a second, outer surface ( 35 ), said first planar surface ( 33 ) having an interference coating ( 24 ) thereon, said interference coating ( 24 ) reflecting back toward said LED assembly ( 16 ) at least some of said first wavelengths ( 31 ) of said electromagnetic radiation ( 20 ) and transmitting at least some of said second wavelengths ( 39 ).