Vision Correcting Displays Based On Inverse Blurring And Aberration Compensation

The concept of a vision correcting display involves digitally modifying the content of a display using measurements of the optical aberrations of the viewer's eye so that the display can be seen in sharp focus by the user without requiring the use of eyeglasses or contact lenses. Our first approach inversely blurs the image content on a single layer. After identifying fundamental limitations of this approach, we propose the multilayer concept. We then develop a fractional frequency separation method to enhance the image contrast and build a multilayer prototype comprising transparent LCDs. Finally, we combine our viewer-adaptive inverse blurring with off-the-shelf lenslets or parallax barriers and demonstrate that the resulting vision-correcting computational display system facilitates significantly higher contrast and resolution as compared to previous solutions. We also demonstrate the capability to correct higher order aberrations.