Aerial 3D Imaging by Retroreflective Mirror Array

We have developed a new optical device and aerial imaging display with the device. The technology features that the pop-out distance of the aerial image is long and there is no need for a space having We have developed an aerial imaging display with long focal distance by a novel optical device. Since the focal length of the optical device is two meters, we can watch an aerial image on the place of two meters on the front of the display. In addition, we needs no extra space behind the device because the device is reflection-type optics. The optical device is a retro-reflective mirror array by arranging corner reflectors in strip shape. We have designed a layout of corner reflectors to image a real image at the designed depth by changing angles of the corner reflectors depending on the location. Thus, it has retroreflective characteristics in the horizontal direction of the optical device and specular reflection characteristics in the vertical direction. The real image of the object placed in front of the lower part of the optical device is imaged in the upper front with a background video.