Tunable-focus microlens arrays using nanosized polymer-dispersed liquid crystal droplets
Abbreviated Journal Title
liquid crystal microlens; nanosized polymer-dispersed liquid crystal; tunable focal length; VARIABLE FOCAL LENGTH; LENS; Optics
A microlens array made of polymer/nanosized polymer-dispersed liquid crystal (nano-PDLC) is demonstrated. The polymer was first patterned into microlens array cavities on a planar substrate and the molded polymer cavities were filled with nano-PDLC material. The nano-PDLC-based microlens is optically transparent. The focal length of the microlens is electrically tunable and the response time is about 200 mu s during focus change. Such an electrically tunable-focus lens is a broadband device and its performance is independent of light polarization. A tradeoff is the high operating voltage. (c) 2004 Elsevier B.V. All rights reserved.
"Tunable-focus microlens arrays using nanosized polymer-dispersed liquid crystal droplets" (2005). Faculty Bibliography 2000s. 5583.