Dual-focal waveguide see-through near-eye display with polarization dependent lenses
Journal
OPT LETT
Date
2019.04.03
Abstract
A waveguide near-eye display (NED) with dual-focal plane using a polarization dependent lens device is proposed. The novel optical device is composed of geometric phase holographic lens, a waveplate and a circular polarizer, which is operating as a concave lens or a see-through optical window depending on the polarization state of the input beam. Such property and ultra-thinness of about 1.5 mm can be applied to combiner-eyepiece lens for augmented reality. This optical device attached to the waveguide provides a two depth plane with polarization multiplexing. We have demonstrated that a proof-of-concept system has image planes at infinity and 20 diopters. The devised system can be expected to offer a better immersive experience compared to a NED system with a single-focal plane.
Reference
Optics Letters, Vol. 44, Issue 8, pp. 1920-1923 (2019)