@article{Liu:21,
author = {Ziwei Liu and Lin Yang and Yanbing Yang and Rengmao Wu and Lei Zhang and Liangyin Chen and Die Wu and Jun She},
journal = {Opt. Express},
keywords = {3D printing; CMOS cameras; Image sensors; LED sources; Lens design; Light sources},
number = {21},
pages = {34066--34076},
publisher = {Optica Publishing Group},
title = {Improved optical camera communication systems using a freeform lens},
volume = {29},
month = {Oct},
year = {2021},
url = {https://opg.optica.org/oe/abstract.cfm?URI=oe-29-21-34066},
doi = {10.1364/OE.440342},
}