[tech-3d] circuit camera scanner

[John Toeppen <toeppen@xxxxxxxx>]

Circuit cameras use an arc of film across which the image is scanned
while the film is advanced and the camera body rotated.  Panorama
cameras often use a stationary arc of film and a lens that rotates about
the node of emission of the lens. (Cheap pan cameras arc the film, use a
wide lens, and crop away 2/3 of the image).

A 360+ degree scanner camera could be of a circuit design.  That is, the
lens and the detector are mounted in a tube (on a rail, whatever).  This
tube assembly is clamped in a V-block with N2 above the vertical
rotation center (pan axis).  The V-block is mounted on a vertical shaft
that may be rotated by a motor at a controlled speed.  The assembly is
fielded and cool images are posted.......

A stereo version of the above hardware could use twin heads where the
center point of a line connecting the N2s is the pan axis centerline. 
However, there are easier ways to produce pans and stereo pans.  The
greatest problem being the expense of the computer with two scanner
heads (UNIX laptop with your own codes and boards?) One head would be
better than two.  Then one would use LC shutters and a splitter.

John Toeppen
http://members.home.com/holographics/

 

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