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Proceedings Paper

A liquid crystal and polymer composite film for liquid crystal lenses
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Paper Abstract

Liquid crystal (LC) lenses offer novel opportunities for applications of ophthalmic lenses, camera modules, pico projectors, endoscopes, and optical zoom systems owing to electrically tunable lens power. Nevertheless, the tunable lens power and the aperture size of LC lenses are limited by the optical phase resulting from limit birefringence of LC materials. Recently, we developed a liquid crystal and polymer composite film (LCPCF) as a separation layer and an alignment layer for a multi-layered structure of LC lenses in order to enlarge the polarization-independent optical phase modulation. However, the physical properties and mechanical properties of the LCPCF are not clearly investigated. In this paper, we show the mechanical and physical properties of the LCPCF. The anchoring energy of the LCPCF is comparable with the standard rubbing-induced alignment layer. The transmission efficiency is around 97% neglecting the Fresnel reflection. The surface roughness is under 2 nm by using AFM scanning. The bending strength test indicates that the LCPCF can hold the LC material with reasonable deformation. We believe this study provides a deeper insight to the LC lens structure embedded with LCPCF.

Paper Details

Date Published: 11 March 2015
PDF: 8 pages
Proc. SPIE 9384, Emerging Liquid Crystal Technologies X, 938410 (11 March 2015); doi: 10.1117/12.2081823
Show Author Affiliations
Yi-Hsin Lin, National Chiao Tung Univ. (Taiwan)
Hung-Shan Chen, National Chiao Tung Univ. (Taiwan)
Yu-Jen Wang, National Chiao Tung Univ. (Taiwan)
Chia-Ming Chang, National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 9384:
Emerging Liquid Crystal Technologies X
Liang-Chy Chien; Harry J. Coles; Hirotsugu Kikuchi; Ivan I. Smalyukh, Editor(s)

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