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1 October 2024 Design of volume holographic lightguide for computer-generated hologram display
Wen-Kai Lin, Wei-Chia Su, Shao-Kui Zhou, Chih-Hung Chen, Yeh-Wei Yu, Shiuan-Huei Lin, Ching-Cherng Sun
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Proceedings Volume PC13140, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVIII; PC1314007 (2024) https://doi.org/10.1117/12.3027859
Event: Optical Engineering + Applications, 2024, San Diego, California, United States
Abstract
The CGH technique is crucial for MR displays, resolving the VAC issue with three-dimensional image generation. However, drawbacks include excessive device volume and speckle noise from coherent light. The lightguides with VHOE couplers and LED light source are employed to address these issues. In this study, we employed an LED as the light source to reduce the speckle noise. The volume holographic optical elements (VHOEs) as the in-coupler and out-coupler are designed as bandpass filters. The VHOEs filtered the CGH display's effective wavelength to inhibit image degradation caused by dispersion. Furthermore, the aberration caused by the lightguide was analyzed and compensated in this study. The design method, simulation results, and experimental results are discussed in this work.
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Wen-Kai Lin, Wei-Chia Su, Shao-Kui Zhou, Chih-Hung Chen, Yeh-Wei Yu, Shiuan-Huei Lin, and Ching-Cherng Sun "Design of volume holographic lightguide for computer-generated hologram display", Proc. SPIE PC13140, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVIII, PC1314007 (1 October 2024); https://doi.org/10.1117/12.3027859
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KEYWORDS
Computer generated holography
Holographic displays
Waveguides
Design
Holography
Volume holography
Light sources
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