Theoretical and Experimental Perceived Depths in Arc 3D Displays: On/Off Switching Using Liquid-Crystal Active Devices

Abstract

In this article, we obtain precise theoretical expressions and various experimental dependences of the perceived depth in an arc 3D display and find that they coincide. We also propose two liquid-crystal (LC) active devices that can switch arc 3D images on and off by changing either the amplitude or frequency of a high applied voltage and clarify their main characteristics. The perceived depth in an arc 3D display can be increased by increasing the arc radius and/or adjusting the illumination angle so that it approaches the viewing angle vertically. The perceived depth remains unchanged even when the observer position changes in the horizontal and/or depth directions, resulting in a continuous motion parallax.