METHOD AND DEVICE FOR PRODUCING A COMPUTER-GENERATED HOLOGRAM, HOLOGRAM, AND LIGHTING DEVICE FOR A VEHICLE

The invention relates to a method for producing a computer-generated hologram, comprising the method steps of: producing a reference beam (4, 4'); producing an object beam (3); applying computer-generated information regarding the hologram to the object beam (3); overlapping the object beam (3)...

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Bibliographic Details
Main Author GILL MANAN
Format Patent
LanguageChinese
English
Published 26.11.2021
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHIC PROCESSES OR APPARATUS
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
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Summary:The invention relates to a method for producing a computer-generated hologram, comprising the method steps of: producing a reference beam (4, 4'); producing an object beam (3); applying computer-generated information regarding the hologram to the object beam (3); overlapping the object beam (3) and the reference beam (4, 4') on or in a light-sensitive recording material (1) in order to apply the hologram by exposure, wherein: several portions of the light-sensitive recording material are exposed, one after the other, to the object beam (3) and the reference beam (4, 4') simultaneously in order to produce a plurality of sub-holograms; the angle of incidence (alpha) at which the reference beam (4, 4') hits the surface of a first portion of the recording material (1) is different from the angle of incidence (alpha') at which the reference beam (4, 4') hits the surface of a second portion of the recording material (1); the change in the angle of incidence (alpha, alpha') of the reference beam (4, 4') is achieved
Bibliography:Application Number: CN202080027536