Head Mounted Display for Mixed Reality using Holographic Optical Elements

Synopsis We propose the stereoscopic Head Mounted Display(HMD) using Holographic Optical Elements(HOE). This display uses HOE as the holographic combiner instead of half mirror that is used by conventional HMD. A single HOE can record the multiple optical images by the characteristic in itself, that is angular selectivity a~d wavelength selectivity: Therefore, the HOE as the combiner has the feature which can separate the stereoscopic images onto the left and right eyes and it has high efficiency both transparency for outside world and reflectance of virtual images shown by electrical display like as small LCD or CRT and so on. In this paper we proved that the HMD using Lippmann hologram has the potentiality of miniaturization, lightening, wide field of vision for outside world. In addition, we have developed the Mixed Reality system by using oUr new HMD. This HMD can be suitable to the Virtual Reality field, especially Mixed Reality we have to observe both the real outside world and the virtual world at the same time.