Development and experimental validation of a versatile prototype Swing Arm Profilometer for measuring optical surfacesHongwei Jing, Zhaoheng Lin, Lifang Ma, Shibin Wu and Fan WuJ. Eur. Opt. Soc.-Rapid Publ., 6 (2011) 11052DOI: https://doi.org/10.2971/jeos.2011.11052