A light redirecting article redirects light toward a target angle. The
light redirecting article is made from a material having a refractive
index greater than 1.6. The light redirecting article has an input
surface for accepting incident illumination over a range of incident
angles and an output surface with a plurality of light redirecting
structures, each light redirecting structure having a near surface and an
exit surface for emitting an output light at an emitted light angle,
wherein the exit surface is at an oblique angle relative to the plane of
the input surface. For incident illumination at either of at least two
different principal angles, each principal angle being greater than 60
degrees from normal and the principal angles having a difference of 5
degrees or greater, the emitted light angle is within 5 degrees of the
target angle.