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Spherical camera mimics eye
Provides wide angle or view with minimal distortion using single simple lens
Clive Akass,
Personal Computer World 07 Aug 2008
US researchers have developed a spherical camera with some of the advantages
of the human eye.
The camera sensor is curved to fit the interior of the sphere, like the
retina of the eye, according to
a
report in MIT Technology Review.
This allows it to offer a wide angle of view with minimal distortion using a
single simple lens – again just like the eye, says lead researcher John Rogers.
The sensor is made by tiny solid silicon cells linked by thin strips of
polymer and metal that allow it to be flexed and stretched.
It is formed flat and is then attached to a hemispherical piece of rubber
that has been squashed flat; the rubber is then allowed to resume its former
shape.
The experimental model has just 256 cells because of the limitations on
fabrication in the lab.
Rogers is quoted as saying he is not ruling out the possibility of using the
technology for an artificial eye but a more immediate use would be in military
field cameras.
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