NONIMAGING OPTICAL ILLUMINATION SYSTEM

摘要

A nonimaging illumination optical device for producing a selected far field illuminance over an angular range. The optical device includes a light source (102), a light reflecting surface (108), and a family of light edge rays defined along a reference line (104) with the reflecting surface (108) defined in terms of the reference line (104) as a parametric function R(t) where it is a scaler parameter position and R(t) = k(t)+Du(t) where k(t) is a parametrization of the reference line (104), and D is a distance from a point on the reference line (104) to the reflection surface (108) along the desired edge ray through the point.