Researchers at Cornell’s Department of Applied Engineering Physics and Samsung’s Advanced Institute of Technology have created the first metamaterial lens that can be focused using voltage instead of mechanically moving the component.
The proof of concept opens the door to a range of compact varifocal lenses that can be used in many imaging applications such as satellites, telescopes, and microscopes. These lenses traditionally focus light using curved lenses that are adjusted using mechanical components. In some applications, moving a traditional glass or plastic lens to change the focal length is simply impractical due to space, weight, or size considerations.
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