表示のための光

US9164290
"The technology provides one or more embodiments of a waveguide display system including at least one grating with multiplexed K-vectors. An embodiment of a waveguide display system including at least one grating with multiple grating K-vectors comprises a waveguide display optically coupled to an image generation unit for receiving image light for display（＊表示のための画像光）, and at least three diffraction gratings positioned within the waveguide display including at least one output diffraction grating for coupling image light out from the waveguide and at least one non-output diffraction grating for coupling image light for traversal along the waveguide display. "