P‐97: Optical Configuration of VR Systems for Slim and Light Head Mounted Displays

Abstract

In this paper, we proposed a new optical configuration achieving slim VR system by enlarging optical path length of light from the display surface in VR systems. Half mirror and polarization selective mirror are used as two mirror surfaces in order to enlarge the optical paths. By stacking the optical layers on the display panel, we obtained VR system having 1/3 slimmer thickness compared with conventional VR system. From the results, we verified that our optical configuration of slim VR system can reduce the thickness of entire VR system and enable the VR system to have slim and light design compared with the conventional VR system. Author KeywordsVR system; slim and light; polarization selective mirror; half mirror. P-97 / S.-M. Lin SID 2018 DIGEST • 1545 ISSN 0097-996X/18/4703-1545-$1.00

Recent Applications of Optical Elements in Augmented and Virtual Reality Displays: A Review

“…Among the examples utilizing a combination of optical elements, one notable approach is the employment of pancake optics, also referred to as folded optics. ,− This technique harnesses a series of partial-reflective and polarization-reflective elements to compactly fold the light path within a thin form factor, substantially enhancing the magnification of the optical system in a space-efficient manner. Maimone et al implemented thin and glasses-like VR NED based on pancake optics using an on-axis concave mirror-like PPHOE and polarization optics .…”