From: wesleymccombe@gmail.com   
      
   Hi All,   
   I'm not an optics expert just an engineer with an optics problem:   
      
   I am trying to transform the scanning angle of an off the shelf White Light   
   Scanner using a 45deg mirror.  The Scanner consists of a Projector and 2 Video   
   cameras all mounted next to each other.   
      
   The reason for the mirror is a want to be able to place a foot, or a hand on a   
   glass pane and have it scanned using this white light scanner.  The Depth of   
   field for the scanner is 400mm so to do this without a mirror makes the box   
   over 500mm high.  Not    
   practical for my use.   
      
   The plan is to build an open face cube cabinet with a mirror at 45degree angle   
   down the middle.  The top face will have optical grade glass where the object   
   to scan will sit (a foot for instance).  The optical grade mirror below will   
   translate the image    
   into the horizontal direction.  The white light scanner would be positioned to   
   focus it's depth of field over the front face surface.   
      
   Problems I can see:   
   1.  The projector is a set of divergent light beams, the mirror is out of   
   plane by 45deg so the resulting image once it hits the scan plane will be   
   distorted (will this be enough to cause a significant effect??).   
   2.  The returning image should be ok, the light is essentially parallel   
   reflections, right?   
   3.  I don't want to mess with the Scanners calibration but possibly this would   
   compensate for the distortion caused in item 1?  Is it worth a shot or am I   
   missing something fundamental here?   
   4.  Can't use a lens to make the projection parallel given the camera shares   
   the same optical path.   
      
   I have an image of the Scan box I designed but I can't find a way to upload   
   it.  Any help would be most appreciated.   
      
   Regards,   
   Wes   
      
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