Electro-optical light modulating device

Details Electro-optical light modulating device Electro-optical light modulating device

G - Physics

02

F

G02F 1/03 (2006.01) G02F 1/01 (2006.01) G02F 1/153 (2006.01) G02F 1/155 (2006.01) G02F 1/15 (2006.01) G02F 1/167 (2006.01)

Patent

CA 2363005

A light modulating device (20) is provided, which includes a first set of fibers (22) and a second set of fibers (24) being arranged to form a two- dimensional array of junctions between fibers of the first set of fibers (22) and fibers of the second set of fibers (24). Each of the fibers of the first and second sets of fibers includes a longitudinal conductive element (26), whereas fibers of at least one of the first and second sets of fibers, at least at the junctions, further include a coat (28) of an electro-optically active substance being capable of reversibly changing its optical behavior when subjected to an electric or magnetic flux or field. The light modulating device has advantages over prior art light modulating devices because it is (i) readily fabricated in any desired dimensions; (ii) flexible; (iii) foldable/collapsible; (iv) simple to manufacture; and therefore (v) cost- effective.

Ce dispositif de modulation (20) de la lumière comprend un premier ensemble de fibres (22) ainsi qu'un second ensemble de fibres (24), agencés de manière à former un faisceau bidimensionnel de jonctions entre des fibres du premier ensemble (22) et des fibres du second ensemble (24). Chaque fibre des premier et second ensembles de fibres comporte un élément conducteur longitudinal (26), tandis que des fibres d'au moins l'un des premier et second ensembles de fibres, au niveau au moins des jonctions, comprennent en outre un revêtement (28) d'une substance active sur le plan électro-optique, capable de changer de manière réversible son comportement optique lorsqu'elle est soumise à un flux ou champ électrique ou magnétique. Ce dispositif de modulation de la lumière possède des propriétés avantageuses par rapport aux dispositifs existants étant donné (i) qu'on peut le fabriquer facilement dans n'importe quelle dimension, (ii) qu'il est souple, (iii) qu'il peut se plier/s'affaisser, (iv) qu'il est simple à fabriquer, et donc (v) économique.

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