Abstract: Head mounted display device for very large field of view virtual reality experience, adapted to be mounted on a user's head, the head mounted display device including at least on image display, at least two eyepieces associated to each of the user's eyes and arranged between the image display(s) and the location of one of the user's eyes, each eyepiece having at least one Fresnel surface, wherein the at least one Fresnel surface of each eyepiece is planar and is arranged at an angle below 70°, preferably at an angle between 45° and 70°, in particular at an angle between 50° and 67.5° relative to the on-axis field gaze direction and where the surface optical center of the at least one Fresnel surface is decentered relative to the on-axis field gaze direction.