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

Abstract

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.

Helmet-Mounted Display System Based on IoT

“…In the 1960s, many functions were linked to the use of the IoT, and the Head-Up Display (HUD) was first invented to assist pilots while flying, as it was implemented in the cockpit then it was used in many fields such as tanks, modern cars, medical uses, industrial uses & education, and it was also upgraded in fighter planes to also include the pilot's helmet not only the cockpit. Many types of research that have been made on motorcycle smart helmets didn't use this technology which can be added to the driver's helmet as it is also used in the pilot's helmet [14].…”