Apparatus for producing an optical effect or for simulating...

F - Mech Eng,Light,Heat,Weapons – 24 – C

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F24C 7/00 (2006.01)

Patent

CA 2583942

Apparatus for producing an optical effect includes a screen comprising at least one electroluminescent material and associated electrodes for exciting the electroluminescent material to emit light. The electrodes are locally excitable so that the regions of the electroluminescent material generally in the shape of flames may be excited. In an alternative form, or additionally, the screen comprises a material of variable opacity such as a liquid crystal polymer or a suspended particle device. gain, electrodes are locally excitable to locally change the opacity of the screen. The screen is locally illuminated to provide the impression of flames.

L'invention concerne un appareil destiné à la production d'un effet d'optique, comprenant un écran comportant au moins une matière électroluminescente et des électrodes associées pour exciter le matériau électroluminescent afin qu'il émette de la lumière. Les électrodes peuvent être excitées localement afin que des zones de la matière électroluminescente, globalement en forme de flammes, soient excitées. Dans un autre mode de réalisation, ou par ailleurs, l'écran comporte une matière à opacité variable, telle qu'un polymère à cristaux liquides ou un dispositif à particules en suspension. L'appareil comprend également des électrodes pouvant être excitées localement pour faire varier localement l'opacité de l'écran. L'écran est éclairé localement pour fournir une impression de flammes.

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