Demonstration of a novel single-layer double-pass optical architecture for a pupil-matched occlusion-capable optical see-through head-mounted display

Austin Wilson, Hong Hua

Research output: Contribution to journalConference articlepeer-review

Abstract

The rendering of mutual occlusion in optical see-through head-mounted displays (OST-HMDs) poses several complex challenges. This paper discusses in detail these challenges and presents a novel optical architecture for enabling a compact, high performance, occlusion-capable optical see-through head-mounted display (OCOST-HMD) with correct, pupil-matched viewing perspective. The proposed design utilizes a single-layer, double-pass architecture, offering a compact OCOST-HMD solution to alleviate several of the main issues facing the state-of-art OST-HMDs today. Our design is capable of rendering per-pixel mutual occlusion with correct viewing perspective between virtual and real views while achieving a very wide see-through field of view (FOV) in a wearable formfactor. Based on this optical architecture, we design and build a compact binocular prototype. The prototype offers a virtual display with an FOV of 34° by 22° with a wide see-though FOV of 90° by 50°, within which about 40° diagonally is occlusion-enabled. Further, the prototype system affords an angular virtual display resolution of 1.06 arc minutes per pixel, along with a modulated optical see-through angular resolution of 1.0 arc minutes.

Original languageEnglish (US)
Pages (from-to)571-574
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume51
Issue number1
DOIs
StatePublished - 2020
Event57th SID International Symposium, Seminar and Exhibition, Display Week, 2020 - Virtual, Online
Duration: Aug 3 2020Aug 7 2020

Keywords

  • Augmented reality
  • Display
  • Head-mounted display
  • LCoS
  • Occlusion
  • OLED
  • Prototype
  • Pupil-matched

ASJC Scopus subject areas

  • Engineering(all)

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