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Microscanner Mirrors Replace Human Vision

By Fraunhofer-Gesellschaft (Germany)

January 14, 2021

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Researchers at Germany's Fraunhofer Institute for Photonic Microsystems (IPMS) have developed a microscanner mirror for LiDAR systems that enables the three-dimensional scanning of a vehicle's surroundings out to more than 200 meters (656 feet).

When used with LiDAR, the device removes the need for human vision to scan the vehicle's environment.

Fraunhofer IPMS' Jan Grahmann said, "Our [microelectromechanical systems] mirror splits the laser beam in two dimensions and focuses the light on the object that is being measured. By measuring the time of flight of the reflected light, it is also possible to determine the distance to the object as a third dimension."

The monocrystalline silicon scanner intensifies the reflection of the light, and can continuously track where the mirror steers the laser and which position is being measured.

From Fraunhofer-Gesellschaft (Germany)
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