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Proceedings Paper

Electrically Controllable Liquid Crystal Fresnel Lens
Author(s): G. Williams; N. J. Powell; A. Purvis; M. G. Clark
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Paper Abstract

Two orthogonally aligned liquid crystal lenses with spherical Fresnel zone plate electrode configurations have been demonstrated to focus an unpolarised broadband object with resulting good quality images. Switch on times of 15ms are reported along with modulation depths of 91.5%.

Paper Details

Date Published: 22 December 1989
PDF: 8 pages
Proc. SPIE 1168, Current Developments in Optical Engineering and Commercial Optics, (22 December 1989); doi: 10.1117/12.962998
Show Author Affiliations
G. Williams, Durham University (England)
N. J. Powell, Durham University (England)
A. Purvis, Durham University (England)
M. G. Clark, GEC Hirst Research Centre (England)

Published in SPIE Proceedings Vol. 1168:
Current Developments in Optical Engineering and Commercial Optics
Robert E. Fischer; Harvey M. Pollicove; Warren J. Smith, Editor(s)

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