YU-WEN CHENChang, En PingEn PingChangChou, Yu ChengYu ChengChouWu, Yi XuanYi XuanWuChang, Chia LingChia LingChangLiu, Guan YangGuan YangLiuWEI-TING CHENWu, Yu HsinYu HsinWuLai, Kai YingKai YingLaiShen, Ching KaiChing KaiShenJUI-CHE TSAI2023-07-182023-07-182022-01-019781665479295https://scholars.lib.ntu.edu.tw/handle/123456789/633897The transfer rate of a sunlight communication system is improved in this study. The transmitter end includes a 2×2 array of switchable corner cube retroreflectors (CCRs) to increase the transfer rate by at least four times. The fabrication of each CCR involves 3D printing and the making of a PDLC (polymer dispersed liquid crystal) switchable module. The images captured by a high-speed camera at the receiving end are analyzed to recover the data. The transmission distance is currently 72 m, a significant improvement compared to our earlier work (45 m). The transfer rate increases from 7 bits/s to 32 bits/s.3D printing | corner cube retroreflector (CCR) | polymer dispersed liquid crystal (PDLC) | sunlight communication[SDGs]SDG7conference paper10.1109/ICKII55100.2022.99835612-s2.0-85146276137https://api.elsevier.com/content/abstract/scopus_id/85146276137