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1. WO2021141565 - METHOD FOR REDUCING THE INTERLAYER INTERFERENCE IN MULTILAYER HOLOGRAMS

Publication Number WO/2021/141565
Publication Date 15.07.2021
International Application No. PCT/TR2021/050164
International Filing Date 23.02.2021
IPC
G01H 1/08 2006.1
GPHYSICS
01MEASURING; TESTING
HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
1Measuring vibrations in solids by using direct conduction to the detector
04of vibrations which are transverse to direction of propagation
08Amplitude
CPC
G03H 1/0808
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
HHOLOGRAPHIC PROCESSES OR APPARATUS
1Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
04Processes or apparatus for producing holograms
08Synthesising holograms, ; i.e. holograms synthesized from objects or objects from holograms
0808Methods of numerical synthesis, e.g. coherent ray tracing [CRT], diffraction specific
G03H 2001/0825
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
HHOLOGRAPHIC PROCESSES OR APPARATUS
1Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
04Processes or apparatus for producing holograms
08Synthesising holograms, ; i.e. holograms synthesized from objects or objects from holograms
0808Methods of numerical synthesis, e.g. coherent ray tracing [CRT], diffraction specific
0825Numerical processing in hologram space, e.g. combination of the CGH [computer generated hologram] with a numerical optical element
G03H 2001/2655
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
HHOLOGRAPHIC PROCESSES OR APPARATUS
1Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
26Processes or apparatus specially adapted to produce multiple ; sub-; holograms or to obtain images from them, e.g. multicolour technique
2645Multiplexing processes, e.g. aperture, shift, or wavefront multiplexing
2655Time multiplexing, i.e. consecutive records wherein the period between records is pertinent per se
G03H 2210/454
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
HHOLOGRAPHIC PROCESSES OR APPARATUS
2210Object characteristics
40Synthetic representation, i.e. digital or optical object decomposition
45Representation of the decomposed object
454into planes
Applicants
  • IHSAN DOGRAMACI BILKENT UNIVERSITESI [TR]/[TR]
Inventors
  • ILDAY, Fatih Omer
  • TOKEL, Onur
  • KESIM, Denizhan Koray
  • TURNALI, Ahmet
  • YAVUZ, Ozgun
  • ILDAY, Serim Kayacan
  • MAKEY, Ghaith
  • ELAHI, Parviz
Agents
  • SEVINC, Cenk
Priority Data
2020/0023808.01.2020TR
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR REDUCING THE INTERLAYER INTERFERENCE IN MULTILAYER HOLOGRAMS
(FR) PROCÉDÉ DE RÉDUCTION DE L'INTERFÉRENCE INTERCOUCHE DANS DES HOLOGRAMMES MULTICOUCHES
Abstract
(EN) The present invention relates to a method for calculating and projecting 3-D holograms built in a multilayer manner. In particular, the present invention relates to a method for determining the image layers for forming the multilayer or multi-slice 3D volumetric images and the distances to be projected of said images and also for reducing the interlayer interference in holograms for forming the multilayer 3D volumetric images by means of the random selection of the phase of the image to be formed in each layer.
(FR) La présente invention concerne un procédé de calcul et de projection d'hologrammes 3D construits de manière multicouche. En particulier, la présente invention concerne un procédé pour déterminer les couches d'image pour former les images volumétriques 3D multicouches ou multitranches et les distances à projeter desdites images et également pour réduire l'interférence intercouche dans des hologrammes pour former les images volumétriques 3D multicouches au moyen de la sélection aléatoire de la phase de l'image à former dans chaque couche.
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