HIGH CONTRAST PROJECTION SCREEN WITH STRAY LIGHT REJECTION

A multi-layer projection screen includes a stray light rejection layer and a lens array. The stray light rejection layer includes an array of pillar structures, wherein each pillar structure of the array of pillar structures includes an entrance aperture, an exit aperture, a pathway extending from t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Norton Adam E, Kazmierski Andrei S, Bierhuizen Serge J
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	A multi-layer projection screen includes a stray light rejection layer and a lens array. The stray light rejection layer includes an array of pillar structures, wherein each pillar structure of the array of pillar structures includes an entrance aperture, an exit aperture, a pathway extending from the entrance aperture to the exit aperture, and a side wall surrounding the pathway. The lens array is optically aligned to the array of pillar structures. The stray light rejection layer blocks display light received from the lens array having an oblique trajectory that is greater than a threshold angle from a first trajectory.