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Opt Express. 2013 Nov 4;21(22):26520-6. doi: 10.1364/OE.21.026520.

Liquid-crystal micro-lens array with two-divided and tetragonally hole-patterned electrodes.

Abstract

We propose a liquid crystal (LC) micro-lens array with the structure of two-divided and tetragonally hole-patterned electrodes. Each LC cell in the lens array behaves like cylindrical or spherical lens properties by electrically adjusting the applied voltages. The LC micro-lens array is useful for tuning optical properties such a focal length and deflection angle of a light emitting diode (LED) illumination system.

PMID:
24216873
[PubMed]
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