Lou Yimin, Wang Hui, Liu Qingkun, Shi Yaocheng, He Sailing
Institute of Information Optical Engineering, Soochow University, Suzhou 215006, China.
Appl Opt. 2010 Oct 10;49(29):5567-74. doi: 10.1364/AO.49.005567.
A detailed analysis of corner cube array (CCA) structure is carried out using the commercially available ray-tracing software ZEMAX. The retroreflective properties of CCA for short-range and long-range propagation are compared. An improved CCA structure with a relatively low structural depth (compared with rectangular CCA) is designed and analyzed. Higher retroreflectance (compared with triangular CCA) at a specific incident angle is proved by ray tracing. Two kinds of CCA structures, including the improved CCA, have been fabricated using laser direct writing technology. The fabrication results are qualified by three-dimensional shape measurement and ray tracing.
