Human eyes are an ideal lens. They can easily shift focus between several objects in a given scene, even if those objects are located at different distances. Attempting a similar ability with a camera may require the photographer to change lenses.
Ohio State University engineers took a crack at giving a camera lens some of the versatility of a human. They made a fluid-filled lens that can change its shape and focus, as well as alter the direction it focuses in. The work was described in the Technical Digest of the 25th IEEE International Conference on Micro Electro Mechanical Systems. The technology could improve the capabilities of digital phone cameras and make cameras overall more reliable by eliminating the need for certain moving parts. Read more...
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