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Holographic Waveguide HUD Touts Larger Eye Box for Enhanced Display

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Researchers demonstrated a functional prototype head-up display (HUD) that uses optical holographic elements to achieve an eye box substantially larger than what is available without the holographic component. Current head-up displays have a small eye box, which can cause the displayed information to partially or wholly disappear from view if users shift their gaze. The HUD uses holographic elements to redirect light from a small image into a piece of glass, where it is confined until it reaches another holographic element that extracts the light. The extraction hologram presents a...Read full article

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    Published: March 2018
    Glossary
    head-up display
    An optical system that superimposes a synthetic display providing navigational or weapon-aiming information on a pilot's or driver's field of view. The system includes a cathode-ray tube, collimating optics and a combiner that projects the image in front of the window.
    holography
    Holography is a technique used to capture and reconstruct three-dimensional images using the principles of interference and diffraction of light. Unlike conventional photography, which records only the intensity of light, holography records both the intensity and phase information of light waves scattered from an object. This allows the faithful reproduction of the object's three-dimensional structure, including its depth, shape, and texture. The process of holography typically involves the...
    Research & TechnologyeducationAmericasDisplaysImagingOpticsLight Sourcesautomotiveaerospaceindustrialhead-up displayheads-up displayHUDhologramsholographyautonomous vehiclesholographic optical elementsTech Pulse

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