News tagged with lens

Mini-projectors -- maximum performance

(PhysOrg.com) -- The number of mini-projector devotees keeps growing. The combination of a new kind of optical structure with high-performance LEDs enables completely new compact and brilliant lighting and ...

May 20, 2010
3.9 / 5 (7) 0

Caltech researchers create 'sound bullets'

Taking inspiration from a popular executive toy ("Newton's cradle"), researchers at the California Institute of Technology have built a device -- called a nonlinear acoustic lens -- that produces highly focused, high-amp ...

Apr 21, 2010
5 / 5 (4) 1

Next generation lens promises more control

(PhysOrg.com) -- Duke University engineers have created a new generation of lens that could greatly improve the capabilities of telecommunications or radar systems to provide a wide field of view and greater ...

Dec 20, 2009
4.8 / 5 (24) 1

The world's most common operation

As many as 10 million people around the world suffer from cataracts. Thomas Kohnen of the Goethe University in Frankfurt and his coauthors discuss cataract surgery with the implantation of an artificial lens in the current ...

Nov 09, 2009
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