Field of view extension in projection-type holographic display with full depth range using a waveguide

Woonchan Moon, Hosung Jeon, Seongju Lee, Joonku Hahn

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The limited space-bandwidth product of digital holography results in a trade-off between the field of view (FOV) and eye motion box (EMB) size. One potential approach to overcome this trade-off is to use a waveguide as a pupil expander. However, this approach has the constraint of generating only infinite depth images or 2D images, which can cause visual discomfort. To address this issue, a novel method that enhances the space-bandwidth product while providing a 3D image with full depth range is necessary. In this paper, we introduce a projection-type holographic display that combines a waveguide, a spatial light modulator, and a laser light source to display true 3D holographic images with an extended FOV. Experimental results demonstrate that this method effectively generates holographic 3D images with an FOV expanded 4 times in the horizontal direction compared to conventional methods.

Original languageEnglish
Title of host publicationDigital Optical Technologies 2023
EditorsBernard C. Kress, Jurgen W. Czarske
PublisherSPIE
ISBN (Electronic)9781510664579
DOIs
StatePublished - 2023
EventDigital Optical Technologies 2023 - Munich, Germany
Duration: 26 Jun 202328 Jun 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12624
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceDigital Optical Technologies 2023
Country/TerritoryGermany
CityMunich
Period26/06/2328/06/23

Keywords

  • computer generated hologram
  • extended field of view
  • full depth range
  • holographic display
  • spatial light modulator
  • three-dimensional display
  • waveguide

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