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Lensless Endoscope Produces 3D Images of Ultrasmall Objects

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Researchers at Dresden University of Technology (TU Dresden) have developed a tiny, self-calibrating endoscope that produces 3D images of objects smaller than a single cell. Without a lens or any optical, electrical, or mechanical components, the tip of the endoscope measures just 200 μm across. To build a self-calibrating endoscope, the researchers added a 150-μm-thick glass plate to the tip of a coherent fiber bundle (a type of optical fiber that is commonly found in endoscopy applications). The fiber bundle is about 350 μm wide and consists of 10,000 cores. Researchers...Read full article

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