Wavelength and diffractive multiplexed expansion of field of view for display devices

Abstract

In a method for transferring an image over an angularly bandlimited optical data channel, a plurality of sub-images is defined that together make up an original image to be transferred over the data channel. Each of the sub-images have a field-of-view (FOV) less than a FOV of the original image and is able to be transferred through the data channel without losing information due to the limited FOV of the data channel. The sub-images are generated from the original image such that the sub-images are able to be transferred into the data channel using (i) time multiplexing and (ii) wavelength and/or polarization multiplexing such that the sub-images are spatially superimposed while traversing the data channel. The spatially superimposed sub-images are transferred into the data channel and subsequently outcoupled. The outcoupled spatially superimposed sub-images are spatially expanded to reconstruct the original image using a wavelength and/or polarization demultiplexing device.

Dependencies are inferred from the claim text.