Blog – Page 601

👁️🔍 Scientists have developed a transparent camera using see-through technology, paving the way for hidden eye tracking devices in everyday objects. #InvisibleInnovation

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The problem is that placing a camera in front of the eyes tends to block the view. And mounting them further away makes them less accurate, more bulky and often more power hungry because of the extra data processing they require. This has limited their utility in many situations.

What eye trackers need is a way of hiding light sensitive pixels in plain sight.

Enter Gabriel Mercier at The Barcelona Institute of Science and Technology in Spain and colleagues who have built transparent photodetectors that can make cameras more or less invisible. They have tested their device and shown it could enable a new generation of eye tracking devices built into ordinary objects such as spectacle lenses, computer monitors and windows. “The operation and appearance of transparent image sensors present a fundamental shift in how we think about cameras and imaging, as these devices can be concealed in plain sight,” they say.

Researchers have developed a cutting-edge optical computing system that represents a major leap in the field of optical logic.

Traditionally, optical logic computing—using light to perform logical operations—has faced challenges when trying to handle more than four inputs due to limitations in…

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Researchers have long sought to harness the power of light for computing, aiming to achieve higher speeds and lower energy consumption compared to traditional electronic systems. Optical computing, which uses light instead of electricity to perform calculations, promises significant advantages, including high parallelism and efficiency. However, implementing complex logic operations optically has been a challenge, limiting the practical applications of optical computing.

A recent breakthrough by researchers at Huazhong University of Science and Technology and the Wuhan National Laboratory for Optoelectronics has pushed the boundaries of optical computing. As reported in Advanced Photonics, they developed a large-scale optical programmable logic array (PLA) capable of handling more complex computations. This new optical PLA uses parallel spectrum modulation to achieve an 8-input system, significantly expanding the capabilities of optical logic operations.