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Flat Surface Lens Overcomes Limitations of Conventional Optics

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An increased aperture-to-depth ratio and a smaller lens stack open possibilities from telescopes to camera lenses in smartphones.

ELIZABETH HOWELL, Space and Science Journalist

The telescope has been used for more than 400 years. Although there have been many designs created for looking at distant objects, there is a fundamental weakness with the lens system. By necessity, telescopes use curved lenses — which are prone to aberrations. For the first time, a novel...Read full article

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