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. Author manuscript; available in PMC: 2016 Dec 23.
Published in final edited form as: Lab Chip. 2010 Dec 1;11(2):194–211. doi: 10.1039/c0lc00340a

Figure 8.

Figure 8

(a) A lensfree cellphone microscope which operates based on incoherent in-line holography is shown. The additional hardware installed on the cellphone weighs 38 grams (<1.4 ounces) and is composed of an inexpensive light emitting diode (at 587 nm) with an aperture of 100 m in front of the source. This cellphone microscope does not utilize any lenses or other bulky optical components and operates with a unit fringe magnification to claim the entire active area of the sensor as its imaging field of view. The samples to be imaged are loaded from the side through a mechanical sample holder. (b) Schematic diagram of the microscope attachment shown in (a) is illustrated. Reproduced from Reference 49 by permission of The Royal Society of Chemistry.