Researchers at Harvard have created a “metalens”, producing the ability to sense depth without traditional optical elements. This special lens detects an incoming image as two similar ones with different amounts of blur. These images are compared using an algorithm that’s quick and efficient and results in a real-time, whole-image depth calculation.
The system requires very little computing hardware and power making it highly efficient. Also, the system is compact, measuring only 3 millimetres across.
With its advantages, the lens system can be part of self-driving cars and industrial robots, as well as, small gadgets, smart home items, and phones.