Large aperture and polarizer-free liquid crystal lenses (LC lenses) based on a double-layered structure for ophthalmic applications are demonstrated. The polarizer-free LC lens functions as both of a positive lens and a negative lens with large aperture size of 10mm. The lens power is electrically and continuously tunable ranging from -1.32 Diopter to 1.83 Diopter. To demonstrate the polarization independency, the wavefronts of the LC lenses under different polarized light were measured and discussed. The detail operations of the applied voltage and frequency are also discussed. The imaging performance of the LC lens is also evaluated. This study provide a detail understanding of the polarizer-free LC lenses based on a double-layered structure.

Date Published: 7 October 2014
PDF: 9 pages
Proc. SPIE 9182, Liquid Crystals XVIII, 91820B (7 October 2014); doi: 10.1117/12.2063425

Published in SPIE Proceedings Vol. 9182:
Liquid Crystals XVIII
Iam Choon Khoo, Editor(s)