%0 Journal Article %T The polarization modulators based on liquid crystal variable retarders for the PHI and METIS instruments for the solar orbiter mission %A Alvarez-Herrero, A. %A García Parejo, P. %A Laguna, H. %A Villanueva, J. %A Barandiarán, J. %A Bastide, L. %A Reina, M. %A Royo, M. %J Proceedings of SPIE %V 10563 %P 105632Z-105632Z-9 %@ 0277-786X %D 2017-11-14 %I SPIE %~ DeepDyve