A light guide is configured to direct light from a light source. The light
guide has an outer guide member and an inner guide member located in the
outer guide member. A light passage is defined through the light guide
between the inner and outer guide members. When a first end of the light
guide is positioned adjacent a light source, light is permitted to pass
from the light source through only the light passage in the light guide.
The configuration of the light guide reduces passage of light off-angle
to the length of the light passage through the guide, such that light is
directed substantially parallel to the light passage. The light guide is
thus effective in eliminating light dispersion and associated light
banding and in focusing light upon a particular object or area.