Wide field of view re-configurable foveal projection systems using a phase only spatial light modulator: an application to a new generation of automotive HUDs

This paper shows how a phase only spatial light modulator (SLM) can be used to implement compact, wide field of view (FOV) projection systems, using a foveal imaging approach. The SLM is tested in two different configurations. First, as a wavefront corrector to locally compensate aberrations in wide...

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Veröffentlicht in:	Optics express 2022-04, Vol.30 (8), p.12937-12951
Hauptverfasser:	Chakir, Soukaina, Mermillod, Pierre, Heggarty, Kevin, de Bougrenet de la Tocnaye, Jean Louis
Format:	Artikel
Sprache:	eng
Schlagworte:	Electromagnetism Engineering Sciences Micro and nanotechnologies Microelectronics Optics Photonic Signal and Image processing
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creator	Chakir, Soukaina Mermillod, Pierre Heggarty, Kevin de Bougrenet de la Tocnaye, Jean Louis
description	This paper shows how a phase only spatial light modulator (SLM) can be used to implement compact, wide field of view (FOV) projection systems, using a foveal imaging approach. The SLM is tested in two different configurations. First, as a wavefront corrector to locally compensate aberrations in wide angle projection, when illuminated by a white (RGB) light source. Second, as re-configurable diffractive optical element (DOE) to display phase computer generated holograms (CGHs) of wide angle images, that include aberration corrections for peripheral regions of interest (ROI) of the output image, when illuminated by a coherent source. Finally, the foveal projection system is coupled with a commercial combiner to project 11° ×4° virtual images at 2~m and assess the foveal correction method on different ROIs in the FOV.
doi_str_mv	10.1364/OE.451412
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subjects	Electromagnetism Engineering Sciences Micro and nanotechnologies Microelectronics Optics Photonic Signal and Image processing
title	Wide field of view re-configurable foveal projection systems using a phase only spatial light modulator: an application to a new generation of automotive HUDs
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