Design of lensless retinal scanning display with diffractive optical element

We propose a design of a retinal-scanning-based near-eye display for augmented reality. Our solution is highlighted by a laser scanning projector. a diffractive optical element. and a moist eye with gradient refractive indices. The working principles related to each component are comprehensively studied. Its key performance is summarized as follows. The field of view is 122 degrees, angular resolution is 8.09', diffraction efficiency is 57.6%, transmittance is 80.6%. uniformity is 0.91, luminance is 323 cd/m(2). modulation transfer functions are above 0.99999 at 3.71 cle/degree, contrast ratio is 4878. and distortion is less than 24%. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement