Augmented reality near-eye display using Pancharatnam-Berry phase lenses
Journal
Scientific Reports
Date
2019.04.29
Abstract
An augmented reality (AR) near-eye display using Pancharatnam-Berry (PB) phase lenses is proposed. PB phase lens provides different optical effects depending on the polarization state of incident light. By exploiting this characteristic, it is possible to manufacture the AR combiner with the small form factor and the large numerical aperture value. The AR combiner adopted in the proposed system operates as a convex lens for right-handed circular polarized light and operates as a transparent glass for left-handed circularly polarized light. By merging this combiner with a transparent screen such as diffuser-holographic optical elements (DHOEs), it is possible to make an AR near-eye display with a small form factor and a wide field of view. In addition, the proposed AR system compensates the chromatic aberration occurred in PB phase lens by adopting three-layered DHOEs. Detailed principle of the proposed system and its feasibility are covered with experiments and analysis.