Fig. 8
From: Ring-shaped bifocal lens used for fluorescent self-referenced holographic imaging
Resolution and contrast measurements with the RBL based SHS. a One reconstructed hologram; b-e the reconstructed images of different sized “2” shaped objects, where the physical sizes of the test targets were decreasing. The orange scale bars are 200 μm long. One can see, that as more point sources contributes to the object the lower contrast the reconstructed image will have. The missing information of the hollow beam limits the resolution of the imaging, but not the resolution of the object detection