Covid update: 11 February 2021
11 Feb 2021
A round up of this week s coronavirus-related news and countermeasures from the photonics industry.
The robot coughs out a precise, repeatable cloud of droplets and aerosols. Research into the spread of coronavirus has been joined by a robot that, unlike a person, can cough out a precisely specified and repeatable consistency of droplets and aerosols. The coughing robot helps determine the effect of masks and various air purifiers on the spread of droplets and aerosols. Measurements made with the robot are also used to verify the accuracy of computer simulations.
Since autumn 2020, a joint project by Finland-based research agency VTT, Tampere University and THL (the Finnish Institute for Health & Welfare) has studied the mechanisms of the droplet and aerosol transmission of Covid-19 and the methods for reducing the risk of transmission.
Roboter wischen Corona weg - VDI nachrichten
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3D-Printing Method Enables Microscale Spectrometer | Research & Technology | Feb 2021
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Miniature spectrometer offers novel endoscopes and cameras
10 Feb 2021
University of Stuttgart uses 3D printing to create refractive, diffractive and filtering elements.
The small stuff: miniature device
Advances in direct laser writing and 3D printing have helped the field of micro-optics achieve striking breakthroughs in tiny optical devices, driven by miniaturization philosophies dating back many years.
A project at the University of Stuttgart s Institute of Applied Optics (ITO) has now used 3D printing to manufacture a miniature spectrometer, fabricated via two-photon laser writing and inkjet deposition.
As described in Light: Advanced Manufacturing the optical system of the assembled device measures 100 x 100 x 300 microns, and features a wavelength range of 200 nanometers in the visible band from 490 to 690 nanometers.
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IMAGE: 3D-printed miniature spectrometer. a, wave-optical simulation of the spectrometer. b, microscope image of the fabricated spectrometer overlayed with the intensity distribution from a. c, array of fabricated spectrometers. view more
Credit: by Andrea Toulouse, Johannes Drozella, Simon Thiele, Harald Giessen, and Alois Herkommer
Femtosecond direct laser writing as a 3D printing technology has been one of the key building blocks for miniaturization in modern times. It has transformed the field of complex microoptics since the early 2000s. Especially medical engineering and consumer electronics as vastly growing fields benefit from these developments. It is now possible to create robust, monolithic and nearly perfectly aligned freeform optical systems on almost arbitrary substrates such as image sensors or optical fibers.