Light Mixing Systems Having Color Free Doublets

摘要

In one aspect, a lighting system is disclosed that includes a light pipe having an input surface for receiving light from at least one light source and an output surface through which light exits the light pipe. A lens doublet comprising two lenses is optically coupled to the output surface of the light pipe for receiving at least a portion of the light exiting the light pipe and projecting the light, e.g., onto a target surface. The lens doublet exhibits a chromatic aberration that is less than the chromatic aberration exhibited by the individual lenses of the doublet. In some embodiments, the lens doublet exhibits a chromatic aberration that is less than about 0.22 diopters for wavelengths over a range of about 450 nm to about 650 nm.

主权项

1. A lighting system, comprising
a light pipe having an input surface for receiving light from at least one light source and an output surface through which light exits the light pipe, and a lens doublet comprising two lenses and optically coupled to said output surface of the light pipe for receiving at least a portion of the light exiting the light pipe and projecting said light onto a target surface, wherein said lens doublet exhibits a chromatic aberration less than a chromatic aberration exhibited by each of said two lenses.