Holographic waveguide

A projection system includes a display device, a hologram engine, and a waveguide. The display device is arranged to display a hologram of an image and spatially modulate light in accordance with the hologram to form a holographic wavefront. The hologram engine is arranged to compute a hologram. The...

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Bibliographic Details
Main Author CHRISTMAS JAMIESON
Format Patent
LanguageChinese
English
Published 30.01.2024
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHIC PROCESSES OR APPARATUS
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
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Summary:A projection system includes a display device, a hologram engine, and a waveguide. The display device is arranged to display a hologram of an image and spatially modulate light in accordance with the hologram to form a holographic wavefront. The hologram engine is arranged to compute a hologram. The hologram is arranged to angularly distribute light within the holographic wavefront as a function of a spatial position within the image such that successive angular ranges of the holographic wavefront respectively correspond to successive regions of the image. The waveguide includes a pair of parallel reflective surfaces arranged to guide a holographic wavefront therebetween. A first surface of the pair of parallel reflective surfaces is partially reflective-transmissive, thereby forming an output comprising a plurality of emitter regions for holographic wavefronts. The hologram engine is arranged to modify the hologram to at least partially compensate for a reduction in emission intensity from each consecutive e
Bibliography:Application Number: CN202310780000