Share Email Print

Proceedings Paper

Imaging with the liquid-crystal adaptive lens
Author(s): Wing W. Chan; Stephen T. Kowel
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The liquid crystal adaptive lens (LCAL) is an electro-optical device whose focal length can be varied electrically. The discrete nature of the electrodes of the device introduces phase aberrations which degrade the performance of the LCAL. We introduce a novel electrode architecture, called 'conductive ladder meshing' (CLM) and a 'stimulated annealing' voltage dithering technique to reduce the phase aberrations. True imaging experiments with a spherical CLM LCAL were performed for a single incoming polarization under white light illumination. Experimental results revealed that the image formed wee comparable to those formed by a fixed lens in terms of resolution,although, the contrast was worse. In addition o variable focal lengths, the CLM LCAL is capable of image translation orthogonal to the propagation direction.

Paper Details

Date Published: 30 October 1997
PDF: 9 pages
Proc. SPIE 3143, Liquid Crystals, (30 October 1997); doi: 10.1117/12.279264
Show Author Affiliations
Wing W. Chan, Univ. of Alabama in Huntsville (United States)
Stephen T. Kowel, Univ. of Alabama in Huntsville (United States)

Published in SPIE Proceedings Vol. 3143:
Liquid Crystals
Iam-Choon Khoo, Editor(s)

© SPIE. Terms of Use
Back to Top