Optical mixture of virtual images and real images in optical see-through MR has two ways to realize. One is the way of using See-through Head Mount Display (S-HMD),the other is the way of using half mirror. In this research we need to measure objects of real images in the real space. And our mesurement equipment,Silicon Range Finder(SRF),have limited range to measure. Moreover SRF is so heavy that the S-HMD with SRF cannnot put on. So we choose the way of using half mirror in ZARD. In this method,as in Fig4,the real images are seen through the half mirror,and virtual images are seen reflected by the half mirror to the observers.
Fig４The Way of Optical Mixture