30 October 1997 Imaging with the liquid-crystal adaptive lens
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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.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wing W. Chan, Stephen T. Kowel, "Imaging with the liquid-crystal adaptive lens", Proc. SPIE 3143, Liquid Crystals, (30 October 1997); doi: 10.1117/12.279264; https://doi.org/10.1117/12.279264
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