ABSTRACT
A blue phase liquid crystal (BPLC) lens with multifunction using multi-electrode structure and a dielectric layer with high dielectric constant is proposed. The refractive index of the BPLC can be changed flexibly in different regions. Some functional or technical requirements such as switch between positive and negative lenses can be achieved. The lens reveals a good parabolic refractive index distribution and focus adjustment capacity simultaneously. The applied voltage on the electrodes is regular and computable. To decrease the applied voltage of the proposed lens with a large diameter, a drive-type adopted Fresnel lens is introduced.
GRAPHICAL ABSTRACT
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Acknowledgements
This work is supported by the NSFC under Grant Nos. 61535007 and 61320106015, and the Equipment Research Program in Advance of China under Grant No. JZX2016-0606/Y267.
Disclosure statement
No potential conflict of interest was reported by the authors.