… In the case of our extreme-depth-of-focus (ExDOF) MDL, the focusing efficiency was defined
as the ratio of power inside a spot of ${\rm diameter} = {3} \times {\rm FWHM}$ to the incident …

… of the images is not required. We emphasize that here we are ensuring that a single flat MDL
… other words, leads to the extreme depth of focus in imaging. Diffraction limit dictates that for …

… using a commercial sensor and demonstrated QR code imaging at different object distances.
Compared to a traditional lens, we can get in-focus images over a longer depth of focus. …

… ratio [58] for our EDOF lenses as the PSFs are very different from a lens and the final image
is … achromatic imaging with dispersion-engineered metalenses, our imaging system does not …

… lens to capture images from various real scenes. To collect input images and ground-truth
images … -51C) with different lens, as shown in Fig. 6(d). One is the off-the-shelf aspherical …

… [30], the extended DOF imaging of our metasurface lens is not limited at a single frequency.
Figure 5(a) shows the simulation results of the metasurface lens at an incident wavelength of …

… A two-lens optical … two lenses in contact with the aperture stop were made flat to avoid the
influence of mechanical stress and facilitate assembly. However, the two surfaces of the lens …

… parameter, it is possible to achieve extreme depth of focus [11] and achromaticity across …
flat lenses operating in the visible spectrum (λ = 450nm to 750nm), which we call the BDOE lens…

… flat lens surpasses the performance of a conventional Fresnel zone plate (FZP) in DOF and
in FOV, even under these limitations. The flat lens, … , lightweight MWIR imaging systems. …

… The issue of off-axis degradation in imaging is bypassed in 3D display applications. We
envision flat lenses provide superior light manipulating capability, thus open the opportunities to …