Augmented imaging using a silhouette to improve contrast

G - Physics – 03 – B

Patent

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G03B 21/14 (2006.01) G02B 27/01 (2006.01) G02B 27/00 (2006.01)

Patent

CA 2312312

An augmented display (20) includes an image display (22) and a silhouette display source (26). The image display generates a virtual image (26) to be received by the viewer. The silhouette disply source occurs in the path of background light (16). The silhouette display source generates a mask corresponding to the image content of the image display. The mask is a darkened area reducing or blocking background light. As the light from the virtual image is overlaid onto the background, there is less background light in the portion where the image appears.

L'invention concerne un afficheur élargi (20) comportant un dispositif d'affichage (22) d'images et une source (26) d'affichage de silhouette. Le dispositif d'affichage d'images génère une image virtuelle destinée à être reçue par l'utilisateur. La source (26) d'affichage de silhouette est placée sur le trajet de la lumière de fond (16). La source d'affichage de silhouette génère un masque correspondant au contenu de l'image du dispositif d'affichage. Ce masque est une zone foncée qui réduit ou bloque la lumière de fond. Lorsque la lumière de l'image virtuel est superposée au fond, la lumière de fond est réduite dans la partie où l'image apparaît.

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