BULK DIFFUSER FOR A PROJECTION SCREEN

Bulk diffuser for a projection screen. A bulk diffuser for rear projection television screens which exhibits a Gaussian intensity profile is described. By appropriately selecting the indices of refraction of the substrate and the loading density and the range of diameters of the spheres therein, the...

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Bibliographische Detailangaben
Hauptverfasser:	GOLDENBERG, JILL F, MCKECHNIE, THOMAS S
Format:	Patent
Sprache:	eng ; fre
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 ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:	Bulk diffuser for a projection screen. A bulk diffuser for rear projection television screens which exhibits a Gaussian intensity profile is described. By appropriately selecting the indices of refraction of the substrate and the loading density and the range of diameters of the spheres therein, the intensity half-angle is made equal to the energy half-angle, whereby the intensity profile of the bulk diffuser is Gaussian.