FIELD: lighting.
SUBSTANCE: lighting assembly that includes a LED source that generates a light cone (solid angle); and a transparent near field lens having a front surface, a collimating surface, and an aspherical groove. Collimating surface collimates the light cone into a beam that reflects off of the front surface toward the aspherical groove, and the aspherical groove directs the beam away from the lens as an exit cone from a virtual focal point, positive virtual focal ring or a negative virtual focal ring. Exit cone may be evenly distributed, substantially forward or substantially rearward from the virtual focal point or virtual focal ring.
EFFECT: parabolic or aparabolic reflectors can be employed with lighting assemblies having a virtual focal point or virtual focal ring, respectively, to reflect the exit cone in a vehicular exterior lighting pattern.
7 cl, 10 dwg
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Authors
Dates
2018-05-16—Published
2014-09-30—Filed