COVID-19 Crisis
In response to the current COVID-19 crisis, we have decided to alleviate the issues faced by citizens and fellow research groups all around the world by making available a free design of a:
- Negative/positive pressure Glovebox System that can be assembled with normal workshop tools (photos of the Glovebox System designed and built by Adrien can be seen here: About Me)
- A 3D-printed Breathing Mask that can support N95 grade filtration when used in combination with a layer of non-woven Polypropylene or alternatively a clean vacuum cleaner bag. It is adapted from the open source NanoHack File from Copper3D. The mask is designed with special ridges that help to build the mask when thermoforming it under a heat gun or hot water (~80°C).
NOTE: It must be adapted to the individual and it does not replace professional PPE equipment. Only wear this breathing mask in emergencies!
Download
 | Breathing Mask STL This 3D-printable breathing mask can be equiped with non-woven polypropylene to achieve N95 grade filtration. However, this mask should only be worn in emergencies due to their difficulty to seal completely against the face. 3d_printed_breathing_mask.stl (2.61MB) |
This 3D-printable breathing mask can be equiped with non-woven polypropylene to achieve N95 grade filtration. However, this mask should only be worn in emergencies due to their difficulty to seal completely against the face.
| 3d_printed_breathing_mask.stl (2.61MB) |
| Breathing Mask STEP This is the accompanying STEP file if any measurements must be adapted. 3d_printed_breathing_mask.step (5.25MB) |
This is the accompanying STEP file if any measurements must be adapted.
| 3d_printed_breathing_mask.step (5.25MB) |
 | Construction Drawing Breathing Mask PDF The construction drawing for the 3D-printable breathing mask. jathe_3d_printable_breathing_mask_construction_drawing v1.pdf (338.3KB) |
The construction drawing for the 3D-printable breathing mask.
| jathe_3d_printable_breathing_mask_construction_drawing v1.pdf (338.3KB) |
| Glovebox System STEP This Glovebox System CAD design can be easily built with tools found in a well-equipped workshop. This design is only a guidline and can be adapted to your individual needs. These components must be purchased in addition to the framework: Ventilator, Fluorescent tube, Buttons/knobs, and electrical wiring. jatech_diy_glovebox_construction_drawing.step (12.88MB) |
This Glovebox System CAD design can be easily built with tools found in a well-equipped workshop. This design is only a guidline and can be adapted to your individual needs. These components must be purchased in addition to the framework: Ventilator, Fluorescent tube, Buttons/knobs, and electrical wiring.
| jatech_diy_glovebox_construction_drawing.step (12.88MB) |
| Construction Drawing Glovebox System PDF The construction drawing for the Glovebox System. adrien_jathe_glovebox_construction_drawing.pdf (149.96KB) |
The construction drawing for the Glovebox System.
| adrien_jathe_glovebox_construction_drawing.pdf (149.96KB) |
ProtecTeam
Adrien has also started the initiative "ProtecTeam" and is currently leading a group of fellow students to produce 3D-printed face shields and breathing masks, as well as self-sewn face masks. They are delivering free supplies to doctors and hospitals all around Frankfurt that are in need for Personal Protective Equipment (PPE). Adrien has already delivered dozens of face shields to two hospitals and two doctor offices. They intend to now supply the school community with face masks.
Smart Sunglasses
Concept
The solution to this problem is surprisingly simple: the view is separated into different sectors, where each sector allows light from one specific direction to enter the eye. Each of these sectors has an transparent solar cell and a liquid crystal cell. A combination of these will almost instantly turn dark, depending on the light intensity that enters the system. These glasses are therefore able to directionally darken only those parts of the field of view, so that only the bright light sources are darkened, whilst simultaneously keeping those sectors clear that do not need to be darkened.
A Hexagonal Grid is the Key
The sunglasses contain an intricate structure of hexagonal tubes. These tubes are specifically alligned towards the pupil. Many variables of these tubes are optimized continuously, allowing for the view to be sectorized into thousands of different sectors. Current research progresses into revolutionary production processes will help to miniaturize this structure, ultimately, allowing the structre to become imperceptible to the eye. This is achieved via the carbonization of a glass blank using a Ultra-Short Pulse Laser.
This unique structure has been submitted to the European Patent Organization and we are currently awaiting for the patent to be granted.
Transmission 90%
Thickness 500µm
Number of tubes >20 000
Darkening Technology
The unique feature is that the Flash Shade sunglasses will automatically darken each ‘pixel’ of the field of view depending on the relative brightness of the light falling through a ‘pixel’ sector. This allows for punctual darkening of specific areas.
For example, the sun would be darkened to a strong degree enabling direct view, whilst a book directly next to the sun, would be darkened only to a minute degree, resulting in an overall image, that allows the wearer to see the sun and the book at a constant brightness.
This technology is unique world-wide and sets these sunglasses apart from classical sunglasses and welding goggles.
This darkening effect is achieved through a layered architecture of semi-transparent organic solar cells and liquid crystal cells; a novel autonomous optically addressed spatial light modulator (OASLM) technology. The characteristic curves of this extraordinary structure was perfected over two years of research in a professional solar simulator. This ensures that the system offers greatest safety, even when looking into bright light sources like the sun or welding light-arcs.
Reaction speed 65 ms
Transparency range 40% - 0.01%
Sunglasses class 2 to 4+
