METHODS AND SYSTEMS FOR PROJECTING IMAGES AT GREATER THAN 180 DEGREES

An optical projection system includes an image source (36) that is configured to generate an array of image pixels. A lens assembly (30) is configured to project the array of image pixels onto a hemispherical surface at a projection angle greater than 180~. The lens assembly may include a wide-angle...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	COLUCCI, D'NARDO, ZOBEL, RICHARD W., JR, MCCONVILLE, DAVID, BALU, SURESH, IDASZAK, RAYMOND L
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACCESSORIES THEREFOR ADVERTISING APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY DISPLAYING EDUCATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY FREQUENCY-CHANGING HOLOGRAPHY LABELS OR NAME-PLATES NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SEALS SIGNS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An optical projection system includes an image source (36) that is configured to generate an array of image pixels. A lens assembly (30) is configured to project the array of image pixels onto a hemispherical surface at a projection angle greater than 180~. The lens assembly may include a wide-angle lens assembly (34) and an image relay lens assembly (32) that is configured to reduce dispersion in the array of image pixels between the image source and the wide-angle lens assembly. The wide-angle lens assembly may include a meniscus lens assembly (44) and a wavefront shaping lens assembly (42). The lens assembly may be further configured to project the array of image pixels onto the hemispherical surface such that there is a constant angular separation between adjacent image pixels. An optical projection system may also include two image sources that are configured to generate first and second arrays of image pixels and two lens assemblies that are configured to respectively project the first and second arrays of image pixels at projection angles that are greater than 180~ onto a surface in opposite directions of each other. The combination of the first and second arrays of image pixels may cover a continuous, 360~ portion of the hemispherical surface.