Single SLM full-color holographic three-dimensional video display based on image and frequency-shift multiplexing

LC-R 720 Spatial Light Modulators
AR/VR/MR / Holographic Display Imaging/ Image Processing
Published on:
Authors: Lin, Shu-Feng; Cao, Hong-Kun & Kim, Eun-Soo
Abstract:

“A single spatial-light-modulator (SLM) full-color holographic 3-D video display based on image and frequency-shift multiplexing (IFSM) is proposed. In the frequency-shift multiplexing (FSM), three-color holograms are multiplied with their respective phase factors for shifted-separations of their corresponding frequency-spectrums on the Fourier plane. This FSM process, however, causes three-color images to be reconstructed at the center-shifted locations depending on their multiplied phase factors. Center-shifts of those color images due to the FSM can be balanced out just by generation of three-color holograms whose centers are pre-shifted to the opposite directions to those of the image shifts with the novel-look-up-table (NLUT) based on its shift-invariance property, which is called image-shift multiplexing (ISM). These image and frequency-shifted holograms are then multiplexed into a single color-multiplexed hologram and loaded on the SLM, and from which a full-color 3-D image can be reconstructed on the optical 4-f lens system without any color dispersion just by employing a simple pinhole filter mask. Fourier-optical analysis and experiments with 3-D objects in motion confirm the feasibility of the proposed system.”

Open Access

Publication: Optics Express
Issue/Year: Optics Express, Volume 27; Number 11; Pages 15926; 2019
DOI: 10.1364/oe.27.015926
Link: https://doi.org/10.1364/oe.27.015926

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