Lensless phase-only holographic Maxwellian display based on double-phase decomposition for optical see-through near-eye display applications
Year: 2024
Type: article
Abstract: The holographic Maxwellian display holds significant potential as a technique for augmented reality presentations due to its capability to address the vergence-accommodation conflict in see-through near-eye displays. However, conventional lensless holographic Maxwellian displays predominantly rely on amplitude-type holograms, facing challenges such as low diffraction efficiency and interference from conjugate images. To overcome these limitations, we propose a lensless phase-only holographic Maxwellian display tailored for optical see-through near-eye applications. In our approach, a complex amplitude distribution, calculated using the angular spectrum diffraction method, was encoded into a phase hologram via the double-phase decomposition algorithm. This phase hologram can effectively converge the virtual target image onto the viewer’s pupil by multiplying the phase hologram with a convergent spherical wave at the hologram plane, enabling viewers to consistently perceive all-in-focus images at the pupil location. Additionally, we introduced a digital grating to mitigate the interference caused by other-order diffraction images. Finally, experimental results demonstrated that our proposed near-eye display system can accurately generate see-through virtual images without the vergence-accommodation conflict issue by loading the designed phase hologram onto a phase-type spatial light modulator. Furthermore, the eye box expansion has been realized by multiplying the phase hologram with multiple convergent spherical waves.
Source: Optics Continuum
Authors: Yuhang Luo, Wenqiang Wan, Yanhong Zhou, Yanfeng Su
Institution: China Jiliang University
Language: English
Subfield: Media Technology
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,372
Funders: National Natural Science Foundation of China, China Postdoctoral Science Foundation, Education Department of Jiangxi Province, Jiangxi Provincial Department of Science and Technology, Natural Science Foundation of Zhejiang Province, Fundamental Research Funds for the Provincial Universities of Zhejiang
OpenAlex ID: W4401522108