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Micro-camera can be injected with a syringe by graystone

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· @graystone ·
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Micro-camera can be injected with a syringe
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<p><img src="https://habrastorage.org/getpro/geektimes/post_images/376/338/45f/37633845f739e13402991e98f6833df8.jpg" width="830" height="552"/></p>
<p>&nbsp;German engineers have created a camera no bigger than a grain of salt that could change the future of health imaging—and clandestine surveillance.<br>
 Using 3-D printing, researchers from the University of Stuttgart built a three-lens <a href="http://phys.org/tags/camera/">camera</a>, and fit it onto the end of an optical fibre the width of two hairs.</p>
<p>&nbsp;Such technology could be used as minimally-intrusive endoscopes for exploring inside the human body, the engineers reported in the journal <em>Nature Photonics</em>.</p>
<p>It could also be deployed in virtually invisible security monitors, or mini-robots with "autonomous vision".</p>
<p>3-D printing—also known as additive manufacturing—makes three-dimensional objects by depositing layer after layer of materials such as plastic, metal or ceramic.</p>
<p>Due to manufacturing limitations, lenses cannot currently be made small enough for key uses in the medical field, said the team, which believe its 3-D printing method may represent "a paradigm shift".</p>
<p>It took only a few hours to design, manufacture and test the tiny eye, which yielded "high optical performances and tremendous compactness," the researchers reported.</p>
<p>The compound lens is just 100 micrometres (0.1 millimetres or 0.004 inches) wide, and 120 micrometres with its casing.<br>
<img src="http://cdn.phys.org/newman/csz/news/800/2016/57715723340a6.jpg"/><br>
 Image of a multi-lens system with a diameter of 600 µm next to a doublet lenses with a diameter of 120 µm. Credit: Timo Gissibl<br>
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<p>&nbsp;It can focus on images from a distance of 3.0 mm, and relay them over the length of a 1.7-metre (5.6-foot) optical fibre to which it is attached.</p>
<p>The "imaging system" fits comfortably inside a standard syringe needle, said the team, allowing for delivery into a human organ, or even the brain."</p>
<p>Endoscopic applications will allow for non-invasive and non-destructive examination of small objects in the medical as well as the industrial sector," they wrote.</p>
<p>The compound lense can also be printed onto image sensor other than optical fibres, such as those used in digital cameras.<br>
<img src="http://cdn.phys.org/newman/csz/news/800/2016/577157359b892.jpg"/></p>
<p>&nbsp;Image of a multi-lens system with a diameter of 600 µm surrounded by four doublet lenses with a diameter of 120 µm. Credit: Timo Gissibl<br>
<img src="http://cdn.phys.org/newman/csz/news/800/2016/5771574a8334b.jpg"/></p>
<p>&nbsp;Colored SEM-image of a miniature triplet lens directly fabricated on an optical fiber. Credit: Timo Gissibl<br>
&nbsp;</p>
<p><strong>More information:</strong> Two-photon direct laser writing of ultracompact multi-lens objectives, <em>Nature Photonics</em>, <a href="http://nature.com/articles/doi:10.1038/nphoton.2016.121">nature.com/articles/doi:10.1038/nphoton.2016.121</a> <br>
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<p>Read more at: <a href="http://phys.org/news/2016-06-micro-camera-syringe.html#jCp">http://phys.org/news/2016-06-micro-camera-syringe.html#jCp</a>&nbsp;</p>
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@cryptoiskey ·
Scary but at the same time riveting stuff....thankyou for the post and info:) 

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