Using superconducting nanowires and lasers, a new camera system can produce high-resolution 3-D images of objects from up to a kilometer away.
- 2:02 PM
The technology works by sending out a low-power infrared laser beam, which sweeps over an object or scene. Some light gets reflected back, though most is scattered in different directions. A detector measures how long it takes one particle of light, a photon, to return to the camera and is then able to calculate the distance from the system to the object. The technique can resolve millimeter-size bumps and changes in depth from hundreds of meters away.
More - Link >>> http://www.wired.com/wiredscience/2013/04/3-d-distance-camera/
Source: Wired Magazine.
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