We present a virtual reality display that is capable of generating a dense collection of depth/focal planes. This is achieved by driving a focus-tunable lens to sweep a range of focal lengths at a high frequency and, subsequently, tracking the focal length precisely at microsecond time resolutions using an optical module. Precise tracking of the focal length, coupled with a high-speed display, enables our lab prototype to generate 1600 focal planes per second. This enables a novel first-of-its-kind virtual reality multifocal display that is capable of resolving the vergence-accommodation conflict endemic to today's displays.
@article{arxiv.1805.10664,
title = {Towards Multifocal Displays with Dense Focal Stacks},
author = {Jen-Hao Rick Chang and B. V. K. Vijaya Kumar and Aswin C. Sankaranarayanan},
journal= {arXiv preprint arXiv:1805.10664},
year = {2018}
}