Eye-box extended retinal projection type near-eye display with multiple independent viewpoints [Invited]

We introduce an approach to expand the eye-box in a retinal-projection-based near-eye display. The retinal projection display has the advantage of providing clear images in a wide depth rang; however, it has difficulty in practical use with a narrow eye-box. Here, we propose a method to enhance the eye-box of the retinal projection display by generating multiple independent viewpoints, maintaining a wide depth of field. The method prevents images projected from multiple viewpoints from overlapping one other in the retina. As a result, our proposed system can provide a continuous image over a wide viewing angle without an eye tracker or image update. We discuss the optical design for the proposed method and verify its feasibility through simulation and experiment. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Automated summary

This paper presents a method to expand the eye-box in a retinal projection display, allowing for clear images in a wide depth range. By generating multiple independent viewpoints and preventing image overlap on the retina, the proposed system can provide continuous images over a wide viewing angle without the need for an eye tracker or image update.