Pixie Camera Captures Precious Pixels
- Fri 08 Jul 2011 10:49:PM
Cameras were once big and bulky. Today, really good cameras fit in your pocket. And now, researchers at Cornell have developed a camera that’s just a half-millimeter on each side and a hundredth of a millimeter thick.
The lens-less device is called a Planar Fourier Capture Array. It’s a flat piece of doped silicon. Each of its pixels is sensitive to specific incident angles and supplies a component of the mathematical operation called the Fourier Transform to produce an image about 20 pixels across. The details of the new camera are outlined in the journal Optics Letters . [Patrick Gill et al, A Micro-Scale Camera Using Direct Fourier-Domain Scene Capture ]
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