P‐11.6: A blue phase liquid crystal lens with large tunable focal length range using different birefringence materials. (4th October 2019) - Zhou, Xiang-Yu; Dou, Hu; Chu, Fan; Tian, Li-Lan; Li, Rui; Hou, Wen-Yi; Gu, Xiao-Qing; Wang, Qiong-Hua