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Proceedings Article

Polymer-dispersed liquid-crystal shutters for IR imaging

[+] Author Affiliations
James W. McCargar, J. William Doane, John L. West

Kent State Univ. (USA)

Thomas W. Anderson

ISI Group, Inc. (USA)

Proc. SPIE 1455, Liquid-Crystal Devices and Materials, 54 (June 1, 1991); doi:10.1117/12.44682
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From Conference Volume 1455

  • Liquid-Crystal Devices and Materials
  • Paul S. Drzaic; Uzi Efron
  • San Jose, CA | February 01, 1991

abstract

Polymer-dispersed liquid crystals (PDLCs) have been developed for modulation of infrared radiation in the 2-5 and 8-14 micrometers wavelength regions. The electro-optic performance of an IR PDLC shutter depends on film thickness, liquid crystal droplet size, and the transparency of the substrates and the PDLC components. The effect of each of these factors on IR electro-optic performance of PDLC films was investigated using double modulation experiments and infrared spectroscopy. The authors have also compared the sensitivity of a pyroelectric vidicon infrared camera using PDLC shutter and a mechanical shutter.

© (1991) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

James W. McCargar ; J. William Doane ; John L. West and Thomas W. Anderson
"Polymer-dispersed liquid-crystal shutters for IR imaging", Proc. SPIE 1455, Liquid-Crystal Devices and Materials, 54 (June 1, 1991); doi:10.1117/12.44682; http://dx.doi.org/10.1117/12.44682


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