Aerial imaging of three-dimensional image by lenticular sheet and dihedral corner reflector array

Abstract

In the conventional autostereoscopic display technique with a lenticular sheet was developed, as the depth distance of a three-dimensional (3D) image from the display increases, blurring of the 3D image increases. Furthermore, image position changes depending on observing position, and therefore a lenticular sheet is unsuitable to the interactive display, which is operated by visual interface like as touching the aerial image directly. In this report, we propose an aerial 3D display combined a lenticular sheet and a dihedral corner reflector array. This can form a 3D image at a fixed position in the air. Inconsistency between focus and binocular convergence can be alleviated. By combining a motion sensor for human hands, the interaction between the aerial image and the user is allowed, and an intuitive interface can be achieved.