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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/180154
A Compact raster lensless microscope based on a microdisplay
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Lensless microscopy requires the simplest possible configuration, as it uses only a light source, the sample and an image sensor. The smallest practical microscope is demonstrated here. In contrast to standard lensless microscopy, the object is located near the lighting source. Raster optical microscopy is applied by using a single-pixel detector and a microdisplay. Maximum resolution relies on reduced LED size and the position of the sample respect the microdisplay. Contrarily to other sort of digital lensless holographic microscopes, light backpropagation is not required to reconstruct the images of the sample. In a mm-high microscope, resolutions down to 800 nm have been demonstrated even when measuring with detectors as large as 138 μm × 138 μm, with field of view given by the display size. Dedicated technology would shorten measuring time.
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VILÀ I ARBONÈS, Anna Maria, et al. A Compact raster lensless microscope based on a microdisplay. Sensors. 2021. Vol. 21, num. 17, pags. 5941-1-5041-14. ISSN 1424-8220. [consulted: 16 of August of 2026]. Available at: https://hdl.handle.net/2445/180154