WAVEGUIDE AND DIFFRACTION GRATING FOR AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY FOR REDUCING THE VISIBLE APPEARANCE OF GRATING STRUCTURES

WAVEGUIDE AND DIFFRACTION GRATING FOR AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY FOR REDUCING THE VISIBLE APPEARANCE OF GRATING STRUCTURES

A waveguide (7001) for use in a virtual reality, VR, or augmented reality, AR, device, is disclosed. The waveguide (7001) comprising an input region (7003) configured to couple light into the waveguide (7001) so that it propagates under total internal reflection (TIR) within the waveguide (7001), an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CROSBY, David Nicholas, SOL, Christian William Olavi, PHELAN, Ciaran Padraic, VALERA, Mohmed Salim, WANG, Kai
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:A waveguide (7001) for use in a virtual reality, VR, or augmented reality, AR, device, is disclosed. The waveguide (7001) comprising an input region (7003) configured to couple light into the waveguide (7001) so that it propagates under total internal reflection (TIR) within the waveguide (7001), and an output region (7005) comprising optical structures configured to receive image bearing light from the input region (7003). The output region (5008) comprises a first and second zones (7011, 7013) comprising optical structures, and a transition zone (7015) between the first and second zones (7011, 7013) for blending between the first and the second zone (7011, 7013) thereby reducing the visible appearance of the boundary between them.