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Title: A Compact raster lensless microscope based on a microdisplay
Author: Vilà i Arbonès, Anna Maria
Moreno, Sergio
Canals Gil, Joan
Diéguez Barrientos, Àngel
Keywords: Microscòpia
Issue Date: 3-Sep-2021
Publisher: MDPI
Abstract: 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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It is part of: Sensors, 2021, vol. 21, num. 17, p. 5941-1-5041-14
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ISSN: 1424-8220
Appears in Collections:Publicacions de projectes de recerca finançats per la UE
Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

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