Projection-type dual-view holographic three-dimensional display and its augmented reality applications

Su, Yanfeng; Cai, Zhijian; Liu, Quan; Shi, Lingyan; Zhou, Feng; Huang, Shuangshuang; Guo, Peiliang; Wu, Jianhong

doi:10.1016/j.optcom.2018.07.061

Cited by 17 publications

(5 citation statements)

References 34 publications

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“…Volume holographic gratings (VHGs) have excellent wavelength and angle selectivity and have been widely used in thin and light AR head-mounted displays and head-up displays [18][19][20][21][22][23]. VHGs with excellent angle selectivity are very suitable for multi-view display through multiplexing or layering [24,25]. In addition, the excellent wavelength selectivity of VHGs enables HUD to provide the same or different display content for different viewing angles with only one image source, thereby reducing the system volume.…”

Section: Introductionmentioning

confidence: 99%

Dual-View and Multi-Content Head-Up Display Using a Single Picture Generation Unit and Two-Layer Volume Holographic Grating

Liu

Yang

2022

IEEE Photonics J.

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Considering that the driver and passengers need different display content in the vehicle display, we propose a dual-view and multi-content head-up display (HUD). Based on the angle selectivity of volume holographic grating (VHG), the multiplexed VHGs diffract light beams at different angles to achieve dual-view display. Based on the wavelength selectivity of VHG, the multiplexed VHGs diffract light beams of different wavelengths that carry different information to realize multi-content display. The HUD prototype is composed of a miniature laser projector, a diffuser, and a holographic combiner. The holographic combiner with a size of 20cm×15cm includes a red-green multiplexed VHG1, a red-blue multiplexed VHG2 and a glass substrate. The field of views (FOVs) and eye-boxs (EBs) of the two viewing zones are 10°×5°and 8°×4°, 147mm×81mm and 105mm×87mm, respectively. In addition, compared with the traditional dual-view HUD, the proposed HUD only requires one picture generation unit (PGU), which is beneficial for its application to compact vehicle or aviation displays. Moreover, the driver and passengers can see the red warning information displayed by the system at the same time, which can significantly improve driving safety.

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Section: Introductionmentioning

confidence: 99%

Dual-View and Multi-Content Head-Up Display Using a Single Picture Generation Unit and Two-Layer Volume Holographic Grating

Liu

Yang

2022

IEEE Photonics J.

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“…There are huge demands for glasses-free AR 3D display in a wide range of applications, including human-computer interaction, entertainment, education, and medical care [9,10]. Glasses-free AR 3D display can be divided into reflection-type AR display [11,12] and optical see-through (OST) display [13][14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Augmented Reality Vector Light Field Display with Large Viewing Distance Based on Pixelated Multilevel Blazed Gratings

et al. 2021

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Glasses-free augmented reality (AR) 3D display has attracted great interest in its ability to merge virtual 3D objects with real scenes naturally, without the aid of any wearable devices. Here we propose an AR vector light field display based on a view combiner and an off-the-shelf purchased projector. The view combiner is sparsely covered with pixelated multilevel blazed gratings (MBG) for the projection of perspective virtual images. Multi-order diffraction of the MBG is designed to increase the viewing distance and vertical viewing angle. In a 20-inch prototype, multiple sets of 16 horizontal views form a smooth parallax. The viewing distance of the 3D scene is larger than 5 m. The vertical viewing angle is 15.6°. The light efficiencies of all views are larger than 53%. We demonstrate that the displayed virtual 3D scene retains natural motion parallax and high brightness while having a consistent occlusion effect with natural objects. This research can be extended to applications in areas such as human–computer interaction, entertainment, education, and medical care.

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“…Dual‐view 3‐D display can show two different stereo scenes simultaneously 1–3 . It includes parallax barrier or lenticular lens‐based imaging, light field imaging, integrated imaging, and holographic imaging 4–9 . However, compared with the conventional 3‐D displays, more scenes to be displayed mean that the displayed parallax image has a lower resolution.…”

Section: Introductionmentioning

confidence: 99%

Dual‐view 3‐D display with multiple resolutions

Zhao

2021

J Soc Info Display

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A dual‐view 3‐D display with multiple resolutions is proposed. The proposed 3‐D display consists of a 2‐D display panel and a parallax barrier. The parallax barrier can project the parallax image on the 2‐D display panel into views and form several viewing zones. By making viewing zones overlapping, the proposed 3‐D display can improve the resolution of the image in the overlapped area and provide multiple resolutions. Finally, the resolution is improved at the center area of a viewing zone, where there is high‐probability viewing position of the observers. A prototype is developed to verify the principle. The experimental results show that the proposed 3‐D display can improve resolution.

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Projection-type dual-view holographic three-dimensional display and its augmented reality applications

Cited by 17 publications

References 34 publications

Dual-View and Multi-Content Head-Up Display Using a Single Picture Generation Unit and Two-Layer Volume Holographic Grating

Dual-View and Multi-Content Head-Up Display Using a Single Picture Generation Unit and Two-Layer Volume Holographic Grating

Augmented Reality Vector Light Field Display with Large Viewing Distance Based on Pixelated Multilevel Blazed Gratings

Dual‐view 3‐D display with multiple resolutions

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