WAVEGUIDE
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United States of America Patent
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Issued Date -
Aug 1, 2024
app pub date -
May 9, 2022
filing date -
May 14, 2021
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Abstract
A waveguide for use in a head-up or head-worn display, the waveguide comprising: a prism having an entrance pupil for receiving an image; a plurality of gratings configured to direct illumination through the prism towards first and second semi-reflecting surfaces; wherein the semi-reflecting surfaces each reflect a different amount of illumination towards an exit point to produce an output image.
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