TY - JOUR AU - Rice, Joseph AU - Zong, Yuqin AU - Dummer, D C2 - Opt Engineering DA - 1997-11-01 DO - https://doi.org/10.1117/1.601534 LA - en M1 - 36 PB - Opt Engineering PY - 1997 TI - Spatial Uniformity Comparison of Two Non-Imaging Concentrators ER -