Results 21 to 30 of about 600,629 (280)

Image Quality for Near-Eye Display Based on Holographic Waveguides

open access: yesApplied Sciences, 2022
The paper analyzes the image quality in augmented reality display based on holographic waveguides. Brightness, brightness non-uniformity, image noise, etc., depend on the parameters of the waveguide substrate, the configuration, and the relief shape of ...
Artem Solomashenko   +4 more
doaj   +1 more source

Optical see-through head-mounted display including transmittance-variable display for high visibility

open access: yesJournal of Information Display, 2021
This paper presents an optical see-through head-mounted display (OST-HMD) that can provide a highly immersive augmented reality (AR) environment. Because visibility of objects is degraded by external light and because projection optics cannot represent ...
Jihyung Kim   +4 more
doaj   +1 more source

A perceptual eyebox for near-eye displays

open access: yesOptics Express, 2020
In near-eye display systems that support three-dimensional (3D) augmented and virtual reality, a central factor in determining the user experience is the size of the eyebox. The eyebox refers to a volume where the eye receives an acceptable view of the image with respect to a set of criteria and thresholds.
Steven A. Cholewiak   +4 more
openaire   +4 more sources

Compact near-eye display for firefighter’s self-contained breathing apparatus

open access: yesETRI Journal, 2023
We introduce a display for virtual-reality (VR) fire training. Firefighters prefer to wear and operate a real breathing apparatus while experiencing full visual immersion in a VR fire space.
Ungyeon Yang
doaj   +1 more source

Depth-Enhanced Holographic Super Multi-View Maxwellian Display Based on Variable Filter Aperture

open access: yesMicromachines, 2023
The super multi-view (SMV) near-eye display (NED) effectively provides depth cues for three-dimensional (3D) displays by projecting multiple viewpoint images or parallax images onto the retina simultaneously. Previous SMV NED suffers from a limited depth
Kefeng Tu   +4 more
doaj   +1 more source

Holographic Near-Eye 3D Display Method Based on Large-Size Hologram

open access: yesFrontiers in Materials, 2021
In this paper, we propose a holographic near-eye 3D display method based on large-size computer-generated hologram (CGH). The reconstructed image with a large viewing angle is obtained by using a time multiplexing and spatial tiling system.
Su-Juan Liu   +4 more
doaj   +1 more source

Hybrid Computational Near-Eye Light Field Display

open access: yesIEEE Photonics Journal, 2019
We propose a hybrid computational near-eye light field display based on micro-lens arrays (MLAs) and structure parameters prioritization method (SPPM) that can render correct accommodation and expand the depth of field (DOF).
Jian Zhao   +5 more
doaj   +1 more source

Fast 3D Content Update for Wide-Angle Holographic Near-Eye Display

open access: yesApplied Sciences, 2021
Near-eye holographic displays are the holy grail of wear-on 3D display devices because they are intended to project realistic wide-angle virtual scenes with parameters matching human vision.
Rafał Kukołowicz   +4 more
doaj   +1 more source

Accommodation-invariant computational near-eye displays [PDF]

open access: yesACM Transactions on Graphics, 2017
Although emerging virtual and augmented reality (VR/AR) systems can produce highly immersive experiences, they can also cause visual discomfort, eyestrain, and nausea. One of the sources of these symptoms is a mismatch between vergence and focus cues. In current VR/AR near-eye displays, a stereoscopic image pair drives the vergence state of the human ...
Robert Konrad 0001   +4 more
openaire   +3 more sources

Optical-Digital Integrated Design Method for Near-Eye Display Imaging System

open access: yesIEEE Access, 2022
Near-eye display (NED) systems have various structures, including the freeform prism, off-axis synthesizer, and holographic optical waveguide structures.
Lin Sun, Qingfeng Cui
doaj   +1 more source

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