Media 1: LED surgical lighting system with multiple free-form surfaces for highly sterile operating theater application Peng Liu Yaqin Zhang Zhenrong Zheng Haifeng Li Xu Liu 10.1364/AO.53.003427.m001 https://opticapublishing.figshare.com/articles/media/Media_1_LED_surgical_lighting_system_with_multiple_free-form_surfaces_for_highly_sterile_operating_theater_application/4899068 Originally published in Applied Optics on 01 June 2014 (ao-53-16-3427) 2014-06-01 00:00:00 Applied Optics theater application 01 June 2014 free-form surfaces media lighting system ao LED