If you want to go back to filum, the original Kodak images of the late
19th C were circular.
Andrew Fildes
afildes@xxxxxxxxxxxxx
On 05/04/2010, at 7:28 PM, Tim Hughes wrote:
> There is a circular "imager" used for small endoscopes. I seem to
> remember it uses a dual fibre that is rapidly spun in a spiral, to
> scan the image. One fibre illuminates and the other recieves the
> light. It is a while since I saw the paper...
>
> I think one of the swallowable pill cameras may actually produce
> circular images although the sensor may really be rectangular!
>
> There was a circular medical imager developed at Stanford as part of
> a student Phd research project, which also produces images not on a
> rectangular grid.
--
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