Projection screen with lenticular lenses of different...

Details Projection screen with lenticular lenses of different... Projection screen with lenticular lenses of different...

G - Physics

03

B

G03B 21/62 (2006.01)

Patent

CA 2375417

Rear projection screens use lenticular lens films as light dispersing components. A single lenticular lens film includes lenticular lenses having different focal powers, or includes lenticular lenses formed in two dimensional patterns. The lenticular lens films improve the brightness uniformity over the entire screen as viewed by a viewer who is located at a specific position. The specific position is typically selected to be the most probable location of the viewer for the particular application.

L'invention concerne des écrans de projection arrière utilisant des films à lentilles lenticulaires comme composantes de dispersion de la lumière. Un film à lentilles lenticulaires unique comprend des lentilles lenticulaires présentant différentes puissances focales, ou des lentilles lenticulaires formant des motifs bidimensionnels. Les films à lentilles lenticulaires accroissent l'uniformité de la luminosité sur toute la surface de l'écran perçue par un téléspectateur situé à un endroit particulier. Cet endroit est choisit généralement comme étant la position la plus probable du téléspectateur pour cette application particulière.

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