Interactive display using planar radiation guide

G - Physics – 02 – F

Patent

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G02F 1/13357 (2006.01) F21V 8/00 (2006.01) G02F 1/1335 (2006.01)

Patent

CA 2662679

An interactive display that uses a planar radiation guide (such as a planar light guide) to perform display and/or imaging. The planar radiation guide has a radiation propagation portion and a radiation interface portion. The radiation propagation portion propagates the radiation by the principles of total internal reflection (with perhaps some minor leakage). The planar radiation guide also has a radiation interface portion where radiation is more apt to exit or enter the planar radiation guide. The interactive display performs both display and imaging, while the planar radiation guide is used to perform at least one (but perhaps both) of the display and imaging operations.

L'invention concerne un affichage interactif utilisant un guide de rayonnement plan (tel qu'un guide optique plan) pour afficher et/ou acquérir des images. Le guide de rayonnement plan comprend une partie de propagation de rayonnement et une partie d'interface de rayonnement. La partie de propagation de rayonnement assure la propagation du rayonnement par réflexion interne totale (en présence éventuellement de fuites mineures). Le rayonnement a davantage tendance à entrer et sortir du guide de rayonnement plan par la partie d'interface de rayonnement. L'affichage interactif assure à la fois l'affichage et l'acquisition d'images, alors que le guide de rayonnement plan est utilisé pour assurer au moins une des opérations d'affichage et de prise d'images (éventuellement les deux).

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