Always focused image - pattern1 Jae-Hyeung Park 10.6084/m9.figshare.5514829.v1 https://opticapublishing.figshare.com/articles/media/Always_focused_image_-_pattern1/5514829 Observed images while the focal length of the camera is changing. The displayed image remain clear, demonstrating always focused images of Maxwellian Near-to-eye display 2018-02-07 18:21:25 maxwellian display depth of focus