Off-axial reflectionholographicvisualdisplayelements which recordsindichromatedgelatin (DCG) deposited on planar substrate of glass has been developed for pilothead-up display (HUD).
In fact, a recent study by the Flight Safety Foundation found that 38% of all accidents in modern turbine-powered, glass-cockpit-equipped aircraft were likely or highly likely to have been prevented if the pilot had a HUD.