The Phasefocus Virtual Lens® is a novel method for high fidelity quantitative imaging and microscopy. It is known in the scientific literature as “ptychography”. It works equally well in transmitted light and reflected light applications and, given suitable illumination sources and detectors, it can operate using any wavelength in the electromagnetic spectrum, as well electron and other particle waves and even sound waves.
No focussing devices are required, so the Phasefocus Virtual Lens is an inherently ‘lensless’ imaging method. There are therefore no associated lens-related aberrations or limitations. However, the method can also be integrated with conventional microscopes that already possess a variety of lenses, and these can be used to provide optical or geometric flexibility, or for conventional imaging.