Liquid-crystal microlens arrays using patterned polymer networks.
A real-time dynamically tunable-focus microlens array made from a polymer-liquid-crystal (LC) composite is demonstrated. The polymer was first patterned in microlens array cavities by lamination, and the LC-monomer mixture was then injected to the molded polymer cavities and finally stabilized by UV light-induced networks. Using this new fabrication method, we demonstrated a lens with a spherical shape and a glazed surface. This LC-based microlens can reach approximately 100% light efficiency for linearly polarized light. The saturation voltage of the lens is approximately 60 Vrms, and the response time is approximately 30 ms.
Ren
Hongwen
H
College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, USA. hren@mail.ucf.edu
Fan
Yun-Hsing
YH
Wu
Shin-Tson
ST