PHASE STRUCTURE ON WAVEGUIDE DISPLAY

PHASE STRUCTURE ON WAVEGUIDE DISPLAY

A waveguide display includes a substrate transparent to visible light, a first grating on the substrate and configured to couple display light into or out of the substrate, and a phase structure on the substrate and configured to change a polarization state of the display light after or before the d...

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Bibliographische Detailangaben
Hauptverfasser: LAM, Wai Sze Tiffany, HUANG, Ningfeng, MEISER, Dominic, LEE, Hee Yoon, YANG, Yang, CHI, Wanli
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:A waveguide display includes a substrate transparent to visible light, a first grating on the substrate and configured to couple display light into or out of the substrate, and a phase structure on the substrate and configured to change a polarization state of the display light after or before the display light reaches the first grating. The first grating is characterized by a polarization-dependent diffraction efficiency. The first grating includes, for example, a surface-relief grating or a volume Bragg grating.