Diffractive distortion of holographic displays with inclined illumination

Cheng-Ta Mu; Cheng-Huan Chen

doi:10.1117/12.2576607

5 March 2021 Diffractive distortion of holographic displays with inclined illumination

Cheng-Ta Mu, Cheng-Huan Chen

Proceedings Volume 11708, Advances in Display Technologies XI; 117080A (2021) https://doi.org/10.1117/12.2576607
Event: SPIE OPTO, 2021, Online Only

Abstract

Spatial light modulator is the key component for dynamic computer generated hologram (CGH) and phase type liquid crystal on silicon (LCoS) device is among the most commercialized. Due to the consideration on efficiency or the requirement from system architecture in the holographic displays, the reconstruction illumination could obliquely incident on the LCoS, which will cause distortion of signal window, hence the image within the signal window. Therefore, the target image needs pre-distortion before the calculation and optimization for the corresponding phase pattern on LCoS in order to obtain the originally desired pattern. This paper illustrates the mechanism of image distortion and provides quantitative analysis for arbitrary azimuthal and radial angle of reconstruction illumination on LCoS device. The required correction is also derived with the corresponding experiment showing the effectiveness of the proposed scheme.

Conference Presentation

Citation Download Citation

Cheng-Ta Mu and Cheng-Huan Chen "Diffractive distortion of holographic displays with inclined illumination", Proc. SPIE 11708, Advances in Display Technologies XI, 117080A (5 March 2021); https://doi.org/10.1117/12.2576607

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