Alternating light sources to reduce specular reflection

G - Physics – 02 – B

Patent

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Details

G02B 27/28 (2006.01) G03B 21/00 (2006.01) G03B 33/12 (2006.01)

Patent

CA 2674944

An interactive display in which alternating illuminators are used to reduce or cancel specular reflections. The interactive display includes multiple illuminators and at least one camera placed behind one or more display layers. The interactive display uses a phase management mechanism that controls alternation of phases of the interactive display. When in the first phase, the first illuminator is controlled to dominate over the second illuminator. When in the second phase, the second illuminator is controlled to dominate over the first illuminator. A consolidated image is then formulated using a combination of the first and second images. The consolidated image has reduced or eliminated specular reflections as compared to the first and second images alone.

L'invention concerne un afficheur interactif dans lequel des dispositifs d'éclairage alternants sont utilisés pour réduire ou supprimer la réflexion spéculaire. L'afficheur interactif comprend des dispositifs d'éclairage multiples et au moins une caméra placée derrière une ou plusieurs couches d'affichage. L'afficheur interactif utilise un mécanisme de gestion de phases qui commande l'alternance des phases de l'afficheur interactif. En première phase, le premier dispositif d'éclairage est commandé pour dominer sur le deuxième dispositif d'éclairage. En deuxième phase, le premier dispositif d'éclairage est commandé pour dominer sur le premier dispositif d'éclairage. Une image consolidée est alors formulée par l'utilisation d'une combinaison des première et deuxième images. L'image consolidée a des réflexions spéculaires faibles ou nulles en comparaison à la première ou la deuxième image prise isolément.

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