Variable-Focus Liquid Crystal Lenses Used in Imaging Systems as Focusing Elements

Mao YE; Bin WANG; Satoshi YANASE; Susumu SATO

doi:10.1093/ietele/e91-c.10.1599

Special Section on Electronic Displays

Variable-Focus Liquid Crystal Lenses Used in Imaging Systems as Focusing Elements

Mao YE, Bin WANG, Satoshi YANASE, Susumu SATO

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Keywords: liquid crystal lens, imaging, focusing, relay lens scope, TV lens

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2008 Volume E91.C Issue 10 Pages 1599-1603

DOI https://doi.org/10.1093/ietele/e91-c.10.1599

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Abstract

Liquid crystal (LC) lenses that have hole-patterned electrodes and are driven by two voltages used as imaging devices are reported. Two different LC lenses are applied in image formation systems. One LC lens is used with a polarizer in a relay lens scope, and another LC lens that is polarization independent is used in a TV lens. Both LC lenses play roles of focusing elements in lens systems; objects are separately brought into focus by the LC lenses. Very sharp black-and-white and color images are formed by the systems.

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