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. 2023 Jan 3;14(2):489–532. doi: 10.1364/BOE.480685

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Fig. 4. — Hardware platforms for different ptychographic implementations. (a) A commercial product based on selected area ptychography (by PhaseFocus). (b) A prototype platform of Fourier ptychography built with a programmable LED matrix [37]. (c) A Fourier ptychographic diffraction tomography platform [71]. (d) A microscope add-on for near-field ptychography [157]. Fourier ptychography setups built using a smartphone [134] (e), a Raspberry Pi system [131] (f), a cell phone lens [132] (g). (h) Lensless on-chip ptychography via rapid galvo mirror scanning [94]. (i) Parallel coded ptychography using an array of coded image sensors [30]. (j) Color-multiplexed ptychographic whole slide scanner [60]. (k) Optofluidic ptychography with a microfluidic chip for sample delivery [66]. (l) Rotational coded ptychography implemented using a blood-coated sensor and a Blu-ray player [61].