Optimization of computer-generated holograms featuring phase randomness control

In this Letter, we introduce a computer-generated hologram (CGH) optimization technique that can control the randomness of the reconstructed phase. The phase randomness significantly affects the eyebox size and depth of field in holographic near-eye displays. Our proposal is to synthesize the CGH th...

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Veröffentlicht in:Optics letters 2021-10, Vol.46 (19), p.4769-4772
Hauptverfasser: Yoo, Dongheon, Jo, Youngjin, Nam, Seung-Woo, Chen, Chun, Lee, Byoungho
Format: Artikel
Sprache:eng
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Zusammenfassung:In this Letter, we introduce a computer-generated hologram (CGH) optimization technique that can control the randomness of the reconstructed phase. The phase randomness significantly affects the eyebox size and depth of field in holographic near-eye displays. Our proposal is to synthesize the CGH through the sum of two terms computed from the target scene with a random phase. We set a weighting pattern for summation as the optimization variable, which enables the CGH to reflect the random phase during optimization. We evaluate the proposed algorithm on single-depth and multi-depth contents, and the performance is validated via simulations and experiments.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.437375