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Proceedings Paper

Ray-tracing simulations and applications of liquid crystal beam control devices
Author(s): Maarten Sluijter; Dick K. G. de Boer; H. Paul Urbach; Jan Strömer; Giovanni Cennini
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Paper Abstract

We have developed a general ray-tracing method in the geometrical-optics approach which enables the modeling of in general inhomogeneous liquid crystal configurations. In this manuscript, we discuss two prominent examples in which we calculate the optical properties of two liquid crystal configurations. We first present simulations of a liquid crystal-based electro-optical device that enables a switching effect due to a back reflection phenomenon. In these simulations, we exploit the optical properties of a liquid crystal with a special Freedericksz alignment. Secondly we present preliminary results of the optical properties of a liquid crystal-based optical element that can actively control guiding and extraction of light. A promising application of such a device can be found in for example beam control devices for lighting applications or applications that require local dimming and highlighting.

Paper Details

Date Published: 3 February 2009
PDF: 12 pages
Proc. SPIE 7232, Emerging Liquid Crystal Technologies IV, 72320S (3 February 2009); doi: 10.1117/12.816508
Show Author Affiliations
Maarten Sluijter, Philips Research Europe (Netherlands)
Dick K. G. de Boer, Philips Research Europe (Netherlands)
H. Paul Urbach, Delft Univ. of Technology (Netherlands)
Jan Strömer, Philips Research Europe (Netherlands)
Giovanni Cennini, Philips Research Europe (Netherlands)


Published in SPIE Proceedings Vol. 7232:
Emerging Liquid Crystal Technologies IV
Liang-Chy Chien; Ming Hsien Wu, Editor(s)

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