Don’t touch that Interface!
A touchless user interface based on a near-infrared-sensitive transparent optical imager
Researchers from the Eindhoven University of Technology worked on a new approach for touchless interfacing with your computer, tab or phone. The key development is based on a visually transparent near-infrared-sensitive organic photodetector array and can be used on top of a display.
We all know that our gadgets are dirty, some studies say more dirty than your toilet. Now, that can be so, but it is clear that there are applications in restaurants or hospitals where you don’t want to touch a screen to operate a system.
The research is based on a layered approach like visualized below:
From the researchers abstract:
‘Touchless user interfaces that are based on gestures typically rely on near-infrared cameras. However, such systems are often hampered by their limited field of view and high-accuracy calibration requirements. Here we report a touchless user interface that is based on a visually transparent near-infrared-sensitive organic photodetector array and can be used on top of a display. Optical transparency is achieved by using a printed copper grid as a bottom transparent conductive electrode and an array of patterned organic photodetector subpixels. Electro-optical modelling is used to optimize the design of the image sensor, leading to a photodetectivity of approximately 1012 Jones at 850 nm and a high visible-light transmittance of 70%. We show that the imager can be used as a penlight-controlled and gesture-controlled touchless user interface when combined with a commercial display.’
All the details of the research can be found at the universities website
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