METHOD AND DEVICE FOR PRODUCING A COMPUTER-GENERATED HOLOGRAM, A HOLOGRAM AND A LIGHTING DEVICE FOR A VEHICLE
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United States of America Patent
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Issued Date -
Jun 25, 2020
app pub date -
Dec 19, 2019
filing date -
Dec 19, 2018
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Abstract
A method for producing a computer-generated hologram, including the method steps of generating a reference beam, generating an object beam, imprinting computer-generated information pertaining to the hologram to the object beam, and overlapping of the object beam and the reference beam on or in a photosensitive recording medium for imprinting the hologram, wherein successively a plurality of portions of the photosensitive recording medium are simultaneously impinged upon with the object beam and the reference beam to produce a plurality of sub-holograms, and wherein the angle of incidence at which the reference beam is incident on the surface of a first portion of the recording medium is different from the angle of incidence at which the reference beam impinges upon the surface of a second portion of the recording medium.
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