Researchers from the renowned Ben-Gurion University of the Negev in Israel have unveiled a groundbreaking, low-cost infrared sensor that could revolutionize night vision technology. This innovation promises to create the thinnest night vision glasses ever developed and has the potential to transform smartphones, automation systems, and even driver-assistance technologies.
According to James Consulting, Professor Gabby Sarusi from the Institute of Nanoscience and Technology at Ben-Gurion University has developed a stamp-like device capable of detecting infrared light at 1500 nm on one side and converting it into visible light on the other. The device is built using an ultra-thin film just 0.6 micrometers thick, composed of a nano-material layer, nano-pillars, and an ultra-thin metal foil. This remarkable material effectively transforms invisible infrared light into visible images that the human eye can perceive.
"The film can be attached to regular glasses or telescopes, turning them into infrared imaging devices," said Sarusi. "It can also be integrated with standard visible light sensors, enabling them to detect infrared light that's otherwise invisible to humans."
The technology could replace heavy, power-hungry night vision equipment with lightweight, energy-efficient glasses suitable for soldiers in the field. It relies heavily on nanotechnology and physical principles, with only a small battery required as an electronic component.
Beyond military use, this breakthrough holds great promise for autonomous vehicles. By converting infrared light into visible images, the system enhances visibility in challenging conditions like nighttime, rain, snow, and fog. Additionally, unlike conventional vision sensors, infrared sensors are not affected by glare from strong sunlight, making them more reliable in all weather conditions.
Sarusi explained, "A typical infrared sensor costs around $3,000, while a standard vision sensor used in autonomous vehicles costs just $1 to $2. With our nano-film technology, the total cost drops to about $7 to $8, significantly lowering the overall expense of self-driving cars."
"This technology offers a low-cost, scalable infrared sensor that’s a game-changer for applications where cost is a major factor, such as autonomous vehicles," he added. "Sensors are the backbone of self-driving systems, and this membrane technology can enhance camera sensors to allow vehicles to 'see' farther and more clearly. It can also be used in LiDAR systems for better environmental awareness."
Another exciting application is in smartphones, where this technology could enable new and innovative infrared-based features. Ben-Gurion University has already begun licensing the technology and has launched a startup to further develop commercial products. According to Sarusi, full commercialization may take two to three years, but the potential impact is huge.
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