A skew freeform reflector design method for prescribed off-axis irradiance

Publication date: June 2019Source: Results in Physics, Volume 13Author(s): Jian-Jia Su, Chung-Hao Tien, Yu-Lin Tsai, Chin-Tien WuAbstractIn this paper we proposed a new methodology for designing freeform reflectors tailored to redistribute the radiant flux emitted by a point light source onto a target plane with the prescribed irradiance pattern. Based on the laws of reflection and energy conservation, a skew freeform model with a set of second-order ordinary differential equations formulating the ray tracing between the source and target domain was presented. A 3D freeform reflector was constructed by using such skew freeform model with quadric surface fitting accordingly. Proposed scheme is applicable for arbitrary geometric-based mapping without the restrictions subject to the target, source, collective solid angle, or target topography, respectively.

Source: Results in Physics - April 22, 2019 Category: Physics Source Type: research