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Transmission switching using micro-encapsulated liquid crystal films

: Wilson, H.R.

Jesch, L.F.; Goetzberger, A. ; European Commission, Directorate-General for Energy; Fraunhofer-Institut für Solare Energiesysteme -ISE-, Freiburg/Brsg.:
5th International Meeting on Transparent Insulation Technology 1992. Proceedings
Birmingham: Franklin Company Consultants, 1992
ISBN: 0-9510781-6-X
International Meeting on Transparent Insulation Technology <5, 1992, Freiburg>
Fraunhofer ISE ()
direct hemispheric transmission; long-term stability; power consumption; voltage dependence

The work presented at the previous TI workshop on micro-encasulated liquid crystal films has been continued with a different liquid crystal, which results in a greater change in the direct-hemispherical transmission (up to 38%) in the solar spectral range with thinner switching layers. I addition to the transmittance and reflectance spectra for normal incidence, the dependence of the visual transmittance on non-normal angles of incidence will be shown. Aspects of the voltage dependence of transmittance and power consumption are also discussed. Further, the first results of long term stability tests will be presented.