Optical Systems Having Edge-Coupled Media Layers

The display may include a waveguide that directs light towards an eye box. The waveguide may include first and second media layers that are edge-coupled at an interface. The first media layer may include a louvered mirror cross-coupler that redirects the light towards the second media layer. The sec...

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Bibliographische Detailangaben
Hauptverfasser:	Cocilovo, Byron R, Schlottau, Friso, Pfeiffer, Jonathan B
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	The display may include a waveguide that directs light towards an eye box. The waveguide may include first and second media layers that are edge-coupled at an interface. The first media layer may include a louvered mirror cross-coupler that redirects the light towards the second media layer. The second media layer may include a volume hologram output coupler that couples the light out of the waveguide. Additional layers may be interposed between the first media layer and waveguide substrates. The additional layers may help confine the light within the first media layer as the light propagates such that all of the light enters the second media layer through the interface. This may configure the waveguide to occupy a minimal amount of space within the display while also providing the eye box with as bright and uniform an image as possible.