HOLOGRAM CALCULATION
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United States of America Patent
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Issued Date -
Oct 5, 2023
app pub date -
Jan 26, 2023
filing date -
Jan 26, 2023
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Abstract
A method of projecting a first image and a second image using one multi-wavelength hologram. The first image is different to the second image. The multi-wavelength hologram is arranged for illumination by light of a first wavelength to project the first image. The multi-wavelength hologram is further arranged for illumination by light of a second, shorter wavelength to project the second image.
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